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O.S.
Available
-
O.S. MAX 12CV-R(P) w/10A
Carb. Engine (L-OS11293)
Many of the latest
generation of 1/10th
scale cars are better
suited to a rear exhaust
engine layout, so O.S.
have pulled all the stops
out to bring you the
fabulous, class-leading
O.S. Max 12TR(P)-T.
Specification:Weight:
210gDisplacement: 2.11cu.
In. Bore: 14.0mm
0.551in.Stroke: 13.7mm
0.539in Power Output:
1.3/30000
(BHP/RPM)Practical RPM:
4000-38000
Availability: In Stock
£91.99
Available
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O.S. FSa-56 w/F-4040
Silencer (L-OS34300) The
new FSa-56 from O.S. is
the first engine in a
completely new series of
advanced four-strokes.
The FS ‘Alpha’ series
draws on the experience
gained from the Surpass
range to develop and
refine standards to a new
level. The increased
capacity compared to the
FS-52 Surpass means more
power/torque and the new
carburettor provides even
better throttle control
across the entire RPM
range! There are
innovative features like
incorporating the
crankcase breather/oil
recirculation system into
the crankcase to dispense
with external nipples and
drain tubes as well as a
dramatic & futuristic
style. An effective and
versatile silencer is
supplied as standard.
SpecificationWeight:419g/14.8oz
w/o
silencerCapacity:9.32cc /
0.569 cu.in.Propeller
Range:13x6-7 12x6-8
13x6Silencer:F-4040Bore:24.0mm
/ 0.945inStroke:20.6mm /
0.811inPower Output:1.0PS
@ 10, 000 RPM
Availability: In Stock
£259.99
Available
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O.S. MAX 91HZ-PS Ring
(L-OS18620) Designed
primarily for the 3D
flight and dramatic
aerobatic manouevres.
Compared to the old Hyper
the new 91HZ-PS offers
improved hovering
stability as well as
power at high speed to
meet the further
sophisticated 3D
competition manouevres. A
new design piston and
crankshaft reduces
vibration to provide
further, stable torque
over the entire RPM
range. The rectangular
heatsink head is
completely included in
the cooling shroud for
better cooling. The black
alumite finish with O.S.
and 91HZ-PS logo impart a
distinctive image. A
Thermo insulator is
installed on the
carburetor mounting
spigot and helps shut out
engine heat to the
carburettor, which in
turn ensures a stable
fuel/air mixture. The
91HZ-PS is equipped with
a new, bigger capacity
PD-08 pump and matched
61B-P carburettor plus
integral regulator,
which assures a
consistent fuel supply
irrespective of violent
changes in model
attitude. Combined with
O.S. pump system,
internal parts
improvements same as the
91HZ contribute to stable
power output and smoother
higher engine
performance.
Specification: Weight:
635gDisplacement: 14.95cc
Bore: 27.7mmStroke:
24.8mm Power Output:
3.5PS @ 15000RPMPractical
RPM: 2000 - 16000
Availability: In Stock
£349.99
Available
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O.S. MAX 70SZ-H Ring
Engine (L-OS17000)
Developed directly from
the feedback received
from top FAI and 3D
pilots throughout the
world, the MAX 70SZ-H
Ring produces copious
quantities of power
across the rev range
without sacrificing its
ability to perform
precision hovering.
Theres a stronger
crankcase (with 6-point
mounts), 3-needle
carburettor and a revised
liner/port design to give
you the performance you
need to beat the world!
Particularly suited to
the demands of 3D flight.
Specification: Weight:
553.5gDisplacement:
11.5cc 0.702cu. in Bore:
25.8mm 1.016in.Stroke:
22.0mm Power Output:
2.5/16000
(BHP/RPM)Practical RPM:
2000-18000
Availability: In Stock
£259.99
Available
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O.S. MAX 55HZ Hyper
Engine & Silencer -
Ltd.Ed w/Pipe (L-OS15637)
A special Limited Edition
version of the fabulous
Max 55HZ Hyper in
stunning black external
finish and matching black
tuned silencer. For the
man that likes his model
products a little more
exclusive! Both the
engine and the silencer
are engraved to show the
Limited Edition nature of
the pair and all of this
comes at a price that is
actually less than buying
the standard engine and
muffler together! There
will only ever be one
batch in the UK so buy
yours now while stocks
last.
Availability: In Stock
£389.99
Available
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O.S. MAX 95AX w/4040
Silencer (L-OS19120)
Designed to replace the
91FX yet retain the same
mounting dimensions but
with increased power and
torque. The design has
been optimsed to produce
strong torque and power
at modest RPMs and
exploit the extremely
effective nature of the
E-4040 silencer. This
concept becomes important
as noise becomes less and
less acceptable. Like all
the latest AX series
engines, the highly
effective and unique
cooling fins keep
temperatures under
control and the
carburettor, the
precision you would
expect from OS.
Specification:Weight:
567g(20oz), Sil. 178g
(6.28oz)Propeller Range:
16 x 8, 16 x 6, 15 x 8,
15 x 6, 14 x 8, 14 x 6
Displacement: 15.55cc
(0.949cu in)Bore: 27.7mm
(1.091in) Stroke: 25.8mm
(1.016in)Power Output:
2.9PS @ 15, 000rpm
optimum Practical RPM:
2000 - 16000
Availability: In Stock
£247.99
Available
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O.S. MAX 75AX w/E-4040
Silencer (L-OS17400) The
third engine in the new
‘AX’ range of high
performance two-stroke
engines fills a
convenient gap between
the existing 61FX and
91FX, yet features the
radical new style
pioneered with the
fabulous 55AX. The new
75AX is supplied complete
with the latest
‘P-Box’ design
silencer for improved
noise suppression. By
keeping the lower
crankcase dimensions the
same as the 61FX, you
can be sure that it will
fit in all models
designed for a. 61,
making a power upgrade
very simple. The 75AX
features the latest O.S.
ringless piston
technology with
multi-layer cylinder
coating and high
precision Type 61A
carburettor with angled
safety needle valve
assembly.
SpecificationWeight:578g
/ 20.39oz w/o
silencerCapacity:12.29cc
/ 0.75 cu.in.Propeller
Range:13x8-10
14x6-8Bore:25.8mm /
1.016inStroke:23.5mm /
0.925inPower Output:2.4PS
@15, 000
Availability: In Stock
£199.99
Available
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O.S. MAX 15CV-RX Engine
(L-OS11640) The ultimate
combination of
performance and
convenience in a side
exhaust 15-size engine.
If the class you want to
race in allows 15s and
you want the best, then
take a long look at the
Max 15CV-RX. Its not
cheap, but the best
never is! Supplied with
standard shaft, drive
washer and rotary 10E-R
carburettor.
Specification:Weight:
253gDisplacement: 2.49cc
0.152cu. In. Bore: 15.2mm
0.598inStroke: 13.7mm
0.539in Power Output:
1.2/31000
(BHP/RPM)Practical RPM:
4000-36000
Availability: In Stock
£114.99
Available
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O.S. MAX 91HZ w/61E Carb
Engine (L-OS18650)
Identical in most
techincal respects to the
original Max 91HZ Ring
engine but now with the
latest 61E carburettor
for an improved spread of
power across the RPM
range. Ideal for sports
flying and F3C
competition alike. You
can rely on OS!
Availability: In Stock
£294.99
Available
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O.S. FS-62V w/F-4050
Silencer (L-OS30600) The
second engine in the new
V series of O.S. four
strokes is targeted at
both sports and scale
modellers alike. Like the
FS-95V, the FS-62V has
the same classic overall
design that appeals to
scale modellers that like
their engines to remain
in character with the
model. The performance,
on the other hand, is
very much 21st Century
and builds on the O.S.
tradition of constant
technological advancement
with each new range. In
the case of the V series,
there is also a strong
emphasis on value for
money. The carburettor
remains as the
twin-needle type for both
power and throttle
response and the Jet
Stream generation
silencer allows both
flexibility of
orientation as well as
effective sound
reduction. By sharing the
same mounting bolt
pattern as the FS-52
Surpass and FSa-56,
mounting the FS-62V as a
direct replacement is
easy and convenient. The
angled pushrod and valve
layout allows a better
shape of combustion
chamber, providing
better power and
efficiency. The cylinder
head is also made from a
special alloy that is
different to the
crankcase to balance
durability against
reduced weight. Only O.S.
goes into this kind of
original design detail,
separating O.S. quality
and performance from
those that just copy!
Specification: Weight:
442g (15.59oz)s w/o
SilencerWeight: 486g
(17.14ozs) w/Silencer
Propeller Range: 12 x 6,
12 x 7, 13 x 6, 13 x 7,
14 x 6Displacement:
10.11cc (0.617cu.in)
Bore: 25.0mm
(0.984in)Stroke: 20.6mm
(0.81in) Power Output:
1.1PS @ 10000rpmPractical
RPM: 2400 - 11000rpm
Availability: In Stock
£229.99
Available
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O.S. MAX 55HZ Hyper
(L-OS15630) The max
50SX-H Hyper has
established an enviable
reputation for power,
reliability and ease of
use. The Max 55HZ Hyper
moves that to a whole new
level! Designed primarily
with the demands of the
3D pilot in mind, the
55HZ Hyper delivers 61
size performance in a 46
size crankcase. That
power comes from the
extensive experience that
OS has gained over many
years and working
extensively with the
worlds top pilots to
refine all aspects of the
engine without compromise
in any area. By using the
same mounting layout,
you can drop a 55HZ into
any model that previously
suited the 50SX-H without
modification. Just the
area around the new
carburettor is a little
bigger and may require
adjustmenst to the
cooling shroud. This
entirely new engine
shares almost nothing
with the 50SX-H and has
some new features not
seen on an engine of this
size before. The rear
bearing is now designed
to resist corrosion, the
new 40L carburettor has
three adjustments to
cater for idle, mid
range and full power.
Until now, these
features were the domain
of 61 class engines or
bigger. The throttle arm
has four leaves so that
push pull control is easy
from any direction. The
heatsink head is bigger
for improved cooling as
well. For the first time,
OS is also offering a
matching tuned muffler as
an option part and has
been optimised to extract
the maximum performance
from the 55HZ Hyper. Part
number X-OS72144000.
Specification:Weight:
408g
(14.39oz)Displacement:
8.93cc (0.55cu.in) Bore:
23mm (0.91in)Stroke:
21.5mm (0.85in) Power
Output: 2.1PS @
17000RPMPractical RPM:
2000 - 20000
Availability: In Stock
£244.99
Available
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O.S. FSa-110 w/F-5040
Silencer (L-OS35410)
Designed specifically to
offer more power and
torque compared to a. 91
size four stroke, yet
still fit in the same
mounting dimensions, the
FSa-110 is a real compact
powerhouse. Like all FSa
series engines, the
FSa-110 has near perfect
carburation across the
RPM range, and thanks to
the carefully designed
exhaust, a soft yet
authoritive note to
minimise your presence to
the neighbours. Precision
carburation, internal
oil recirculation and
dramatic styling are all
features of the FSa range
and put this and the
other derivatives that
cut above the opposition.
Specification: Weight:
600g (672g
w/silencer)Displacement:
18.0cc Bore:
30.4mmStroke: 24.8mm
Power Output: 1.8PS @ 10,
000RPMPractical RPM: 2,
000 - 11, 000
Availability: In Stock
£338.39
Available
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O.S. Speed 21VZ-B V-Spec
II Engine (L-OS13911) If
you want to win World
1/8th Rallycross
Championships you need
the best engine... and
this is it! From tough
new aluminium cylinder
head with cooling
efficiency holes, to the
ceramic rear bearing and
the specially plated
crankshaft with heavy
metal balance inserts,
the Speed 21 is all about
no compromise. The engine
of choice for the 2008
World Champion, Atsushi
Hara, and most of the
top seven finishers!
Specification:Length:
65mmHeight: 110.6 Weight:
349g (12.32oz)Width: 45mm
Displacement: 3.46cc
(0.211cu.in.)Bore:
16.60mm (0.654in.)
Stroke: 16.00mm
(0.630in.)Power Output:
2.5PS@34000 rpm Practical
RPM: 3000~40000 rpm
Availability: In Stock
£429.99
Available
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O.S. MAX 55HZ-R Engine
(L-OS15650) The latest
engine in the 600/50
helicopter class borrows
much of its technology
from the fabulous Max
91HZ-R, to provide class
leading power under the
most demanding of 3D
manouevres. The latest
DRS system (Demand
Regulator System) uses a
crankcase pressure
tap-off to pressurise the
fuel tank via a one way
valve. The pressurised
fuel is then carfully
regulated at the
carburettor to provide
the optimum mixture no
matter what demands are
placed on it. This is
done by using the
negative pressure in the
carburettor venturi as
part of the regulation
system. The carburettor
itself has three mixture
controls for low/mid and
high speed settings. Once
set for the fuel demands
of your model/type of
fuel and muffler, there
is rarely any need to
change those settings
again. The main mechanics
of the engine itself are
the same as the regulat
Max 55HZ.
Specification:Weight:
429g
(15.13oz)Displacement:
8.93cc (0.55cu.in) Bore:
23mm (0.91")Stroke:
21.5mm (0.85") Power
Output: 2.1PS @
17000rpmPractical RPM: 2,
000 - 20, 000
Availability: In Stock
£279.99
Available
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O.S. FS30 Surpass
w/F-1020 Silencer
(L-OS33000) The smallest
in the O.S. four stroke
range and, at only 9.56
oz, its also the worlds
lightest production model
four stroke. It has most
of the features of the
larger single cylinder
O.S. four strokes, but
it has its camshaft
carried in bronze bushes
- backed up by a pair of
spherical thrust
bearings. Ideal for
trainers, scale & sport
models. Designed to be
used with 9” x 6~7”
to 10” x 6” props.
Specification:Weight:
279gPropeller Range:
9x6-7 10x4 Displacement:
4.89cc 0.299cu. In.Bore:
19.5mm 0.767in. Stroke:
16.4mm 0.648inPractical
RPM: 2500-13000
Availability: In Stock
£169.99
Available
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O.S. MAX 21VG-P ES
(L-OS13642) Identical
specification to the 30VG
(P) SR but supplied with
the complete rear
shaft-start system as
standard. The shaft start
system is found in many
cars today and, so long
as there is sufficient
access, it is a common
conversion from a
pull-start engine too.
The 21VG - P ES is also
the perfect upgrade for
many RTR cars that come
with a less powerful and
tricky to use standard
engine.
Specification:Weight:
436g
(15.40oz)Displacement:
3.46cc (0.211cu.in.)
Bore: 16.60mm
(0.654in.)Stroke: 16.00mm
(0.630in.) Power Output:
2.0PS@30000RPMPractical
RPM: 3000~36000RPM
Availability: In Stock
£149.99
Available
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O.S. FS-200 Surpass
w/F-6010 Sil. (L-OS35940)
The largest,
single-cylinder
four-stroke engine that
O.S. has ever made draws
on unrivalled experience
in engine design. This
powerful, high-torque
engine can turn big
propellers and has been
created with both scale
and sports-scale
modellers in mind, its
compact external
dimensions making
installation within tight
cowlings a real joy.
Fuelling is courtesy of a
specially designed twin
needle carburettor and,
like all the latest
Surpass series, the
internals have been
lavished with the
engineering care that
only O.S. can achieve;
top-grade material
selection, precision
machining and surface
finish.
Specifications:Capacity:
1.98cu.in. (32.4cc) Bore:
1.5" (38mm) Stroke:
1.13" (28.6mm)
Weight: 30.1oz (853g)
(w/o silencer) Power
Output: 3hp @ 9, 000rpm
Propeller Range: 15 x
12" - 14", 16
x 12" - 14",
17 x 10" - 13",
17 x 12" -
13", 18 x 8" -
12" Silencer: F-6010
Availability: In Stock
£444.99
Available
-
O.S. MAX 30VG(P) ES
L-OS13965 Fitted with a
simple yet rugged,
starting gearbox on the
rear, the 30VG(P)-ES
requires a starter and
wand system to get her
going. This kind of
starting system makes the
smallest access hole
possible in the bodyshell
and rapid starting when
you need it, getting you
back out on the track and
into the fun again.
Specification: Weight:
436g 15.39ozDisplacement:
5.0cc 0.298cu. in Bore:
18.5mm 0.728inStroke:
18.2mm 0.716in Power
Output: 3.0PS@28000
RPMPractical RPM:
4000~36000
Availability: In Stock
£239.99
Available
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O.S. MAX 18CV-RX Motor
(L-OS11840) A powerful
side-exhaust motor of 3.0
cc capacity for 1:10
scale model cars. Twin
ball raced crankshaft,
ringless piston/liner,
tall heat-sink head for
optimum heat dissipation,
newly developed Type 11G
slide carburettor and
type 203 super air
filter. The OS MAX 18
CV-RX version also
features a pull start.
Specification:Weight:
237g 8.38ozDisplacement:
3.0cc 0.18cu in. Bore:
16.0mm 0.63in.Stroke:
15.0mm 0.591in Power
Output: 1.35PS@28000
RPMPractical RPM:
3000-32000
Availability: In Stock
£179.99
Available
-
O.S. FSa-81 w/F-5030
Silencer (L-OS34810) The
new FSa-81 is a direct
replacement for the FS-70
Surpass II, offering
greater power and
throttle precision in a
compact and lightweight
design. The crankcase
mounting dimensions allow
the FSa-81 to slot into
the same mount that an FS
-70S II would for an
instant power upgrade.
Like the FSa-56, the
crankcase breather system
has now been incorporated
inside the engine to
negate the need for an
external vent and the
excess oil that eminates
from it. A propeller
locknut assembly is of
course standard. The new
F-5030 silencer is very
effective, thanks to its
internal baffle and
carefully matched
internal volumes and
opassages. The design
allows a huge range of
outlet positions to
accomodate almost every
model. Even the distance
away from the engine can
now be adjusted. The
latest 60RA carburettor
now features a constant
velocity inlet for
improved throttle
response and reduced
spitting.
Specification:Weight:
556g 19.63ozPropeller
Range: 13x7-9, 14x6-7
Silencer:
F-5030Displacement:
13.26cc 0.809 cu.in.
Bore: 27.7mm
1.091in.Stroke: 22.0mm
0.866in. Power Output:
1.3PS @ 11, 000Practical
RPM: 2, 200 - 12, 000
Availability: In Stock
£336.99
Available
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O.S. MAX 50SX-H Ring
Hyper (L-OS15550) The
best 50-class engine on
the market just became
amazing with the
introduction of the new
50SX-H Hyper. That CNC
machined cylinder head
has been developed to
give better power and
improved cooling at the
same time. The new
carburettor has also been
improved to help extract
more power than the
standard engine without
sacrificing the throttle
precision you have come
to expect from OS
helicopter engines. This
truly is the best engine
in the 50-class and is
fast becoming the best
seller as well. Its an
OS, what else would you
expect!! Specification:
Weight: 413gBore: 22.0mm
0.866in. Stroke: 19.6mm
0.772inPower Output:
1.8/17000 (BHP/RPM)
Practical RPM: 2000-20000
Availability: In Stock
£184.99
Available
-
O.S. FS40 Surpass w/FS40S
Silencer (L-OS35220) The
original 6.5cc FS-40 was
O.S.s second production
single cylinder four
stroke and the first to
have the front mounted
helical driven camshaft
now common to all their
single cylinder O.S. four
stroke engines. The
current FS-40S is an
all-new design which is
much more powerful and
closely related to the
FS-48, though smaller
both internally and
externally. Supplied
complete with silencer,
the FS-40S is ideal for
sport and scale models
and is designed for use
with 10” x 7.5” to
12” x 6” propellers.
Specification: Weight:
355g 12.52ozPropeller
Range: 10x7-7.5 11x6 11x7
12x5-6 Displacement:
6.49cc 0.40cc. In.Bore:
21.20mm 0.835in. Stroke:
18.4mm 0.724inPower
Output: 0.65PS@12000RPM
Practical RPM: 2200-12000
Availability: In Stock
£189.99
Available
-
O.S. MAX 55AX w/E-3070
Silencer (L-OS15611)
Designed to combine
maximum power with
razor-sharp throttle
response in the smallest
possible crankcase, the
55AX has the same
mounting dimensions as
the popular 46AX but with
more power. The dramatic
AX fin styling is used
for optimum cooling, and
the rearward-angled
needle on the the type
40J carb makes for safer
adjustments. Perfect for
sport, scale and
aerobatic appplications.
Specification:Capacity:
0.54cu. in. (8.9cc) Bore:
0.91" (23mm) Stroke:
0.85" (21.5mm)
Weight: 14.25oz (404g)
(w/o silencer) Power
Output: 1.75hp @ 16,
000rpm Practical RPM: 2,
000 - 17, 000 Propeller
Range: 12 x 7" -
8", 13 x 6" -
7" Silencer: Power
Box E-3070
Availability: In Stock
£129.99
Available
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O.S. OMA-5020-490
Brushless Motor
(M-OS51013000) Legendary
O.S. quality in a
brushless electric motor!
The OMA-5020-490 provides
strong, linear power and
is intended as a
replacement for. 40 -. 50
two-stroke and. 70
four-stroke engines using
5S and 6S Li-Pos.
Features include a
unique. O.S. - designed
cooling system, a
strengthened centre body,
large ball bearings and
a stainless steel
propeller driver for
maximum strength and
durability. The motor is
balanced during
manufacture to ensure
optimum running and
reliability.Supplied with
a rear mount and 4mm gold
connectors as standard
accessories.
Specification:Diameter:
50mm Length: 57.5mm Shaft
dia: 6mm Shaft length:
11.5mm Lead wire length:
110mm Male connector: 4mm
diameter Weight: 350g
Poles: 14 Resistance:
23mOhm Current range: 50
- 60A kV: 490 Li-Po: 5S,
6S Bearings: 3 ESC
timing: 20-30 degrees
(high) Turns: 16 Max
current: 90A / 10 seconds
Power output: 1110W
Nominal voltage: 18.5 -
22.2V No-load current:
1.5A Max. efficiency: 85%
Availability: In Stock
£79.99
Available
-
O.S. MAX 15CV-A w/871
Silencer (L-OS11620) High
performance from the
smallest physical size is
the name of the game as
far as the Max 15CV-A is
concerned. Its twin
ball-raced crankshaft,
full Schnuerle porting
and large bore
carburettor all
contribute to the 0.5bhp
power output. A great
engine for 1/12th scale
combat or those who just
like the best,
regardless of size.
Specifications:
Displacement 2.49cc
0.152cu. In.Bore 15.2mm
0.598in.Stroke 13.7mm
0.539cu. in.Power Output
0.5 / 18000 (BHP/RPM)RPM
2500 - 19000Weight
170gPropeller Range:
7x5-6 8x4-6 9x4
Availability: In Stock
£102.99
Available
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O.S. Speed 21XZ-B Engine
(L-OS12186) Developing on
the 1/8th Off Road World
championship winning
engine of 2008, OS has
now devoped the latest
generation engine called
the Speed 21XZ-B. Racing
engines are a constant
refinement of design and
technology rather than a
huge leap. The Speed
21XZ-B is case in point.
No one area has been
dramatically changed but
nearly every area has
been subtly improved.
Whether that is the DLC
coated, tungsten
weighted and silicon
filled crankshaft, the
Ceramic rear bearing or
the shape of the
cylineder ports,
everything has been
developed to make the
Speed 21XZ-B a step
forward in performance.
OS racing engines have
always been some of the
easiest to set up and use
and this is no accident.
Years of racing
experience with top
drivers such as Mark
Pavidis and Atsushi Hara
has established how an
engine should respond at
the highest levels and
remain consistent. There
are small detail changes
such as the lower,
lighter heatsink head for
a lower centre of gravity
and an improved 21J2(B)
carburettor for better
response and setting. The
Speed 21XZ-B has an
overall fuel consumption
that is 8% better (OS
pipe) than its
predecessor. That could
make the difference when
making a decision about
the best time to pit! Why
not follow the champoins
choice and drive the very
latest Speed 21XZ-B
yourself! Optional
items:Super Air Cleaner
203T-2060SC WN Tuned Pipe
system (EFRA 2042
homologated)P4 and P5
Turbo plugs
(Cooler)Crankshaft
locking toolHeavier
Flywheels for Mugen and
KyoshoFlywheel
PullerFlywheel KeyLong
Plug Wrench
Specification: Weight:
355g
(12.52oz)Displacement:
3.49cc (0.213cu.in) Bore:
16.27mm (0.64in)Stroke:
16.8mm (0.66in) Power
Output: 2.6PS @
34000rpmPractical RPM: 4,
000 - 40, 000
Availability: In Stock
£359.99
Available
-
O.S. FS-95V w/F-5050
Silencer L-OS30900 The
first in a completely new
series of four stroke
engines aimed squarlely
at the sport and scale
modeller.Stying is
deliberately retro and in
keeping with the style of
the very first OS four
strokes. The original
FS-120 had twin rocker
covers and so do many
full size engines in
older aircraft. But retro
stying does not mean
retro technology! The
FS-95V is a sophisticated
piece of kit, delivering
strong power and torque
and offers a cost
effective alternative to
the FSa-81.The 60P
carburettor is a twin
needle design for great
throttle response and
reliable idling. There is
nothing worse than having
your engine cough at the
wrong time when you
really need a reliable
response. The FS-95V will
give you that pice of
mind and respond just
when you want it. That is
why so many discerning
modellers choose OS time
after time!There are many
models designed for. 61
2-strokes/.91 4-strokes
and the FS-95V was
created with that in
mind. She will fit in
anywhere that an FS-91S
does, so model
compatibility is not an
issue. The added benefit,
is far better silencing
from the new F-5050,
baffled, twin chamber
silencer with an O-ring
seal between the cast
sections and variable
length header pipe.
Flexibility of silencer
outlet position is well
suited to scale
installations and there
are a variety of optional
header pipes too, that
will cater for just about
every model.OS has always
been at the forefront of
safety, and continued
use of a lock nut system
for the propeller
retention on the FS-95V
is proof of this.The new
V series of OS four
stroke engines is here
and setting the industry
standards yet again.
SpecificationWeight:592g
(20.9oz)
Availability: In Stock
£279.99
Available
-
O.S. MAX 46LA Silv.
w/E-3030 Silencer
(L-OS13393) Physically
identical to the popular
40LA but with a 20%
increase in power and no
discernible increase in
weight. If youve built a
model thats ended up a
little on the heavy side
for a 40LA then the 46LA
could be the answer to
your prayers! Like all
engines in the LA range
the 46LA comes with an A3
glowplug as standard plus
the highly effective
E-3030 Silencer.
Specification:Weight:
272g (9.59oz)Propeller
Range: 11x6 11x7
Displacement: 7.64cc
(0.46cu.in.)Bore: 23.0mm
(0.910in.) Stroke: 18.4mm
(0.724in.)Power Output:
1.25PS@15000RPM Practical
RPM: 2000~16000RPM
Availability: In Stock
£81.99
Available
-
O.S. MAX 37SZ-H Ring w/o
Drive Wash (L-OS14000)
Following on from the
concept developed in the
70SZ-H, the latest
37SZ-H brings a new level
of performance to
30-class helicopters.
Just about everything has
been changed compared to
the 32SX-H in the pursuit
of power and control.
That super-rigid
crankcase contains a
highly developed, ringed
piston/liner set and
optimised crankshaft for
the right combination of
power and smoothness. The
new carburettor has been
purpose designed for
precision control and is
capable of being operated
by push-pull linkages if
required. This is the
perfect engine to
compliment your new
Hirobo Sceadu Evo and
move your flying on to a
new level. Specification:
Weight: 293g 10.33
ozDisplacement: 6.07cc
0.37cu in. Bore: 20.5mm
0.807in.Stroke: 18.4mm
0.724in Power Output:
1.4PS@18000 RPMPractical
RPM: 2000-21000
Availability: In Stock
£154.99
Available
-
O.S. MAX 46AX w/E-3070
Silencer (L-OS15481) The
first engine in the AX
series, the 46AX
features a new
rear-mounted needle valve
system that tolerates
crash damage better. The
new carburettor has been
refined further to make
adjustments more precise
and throttling even more
progressive. The amazing
new P-Box silencer is
both distinctive in
styling as well as being
functional. Inside, the
ringless piston/liner
system delivers strong
power and improved life.
Availability: In Stock
£124.99
Available
-
O.S. OMA-5025-375
Brushless Motor
(M-OS5101400) Legendary
O.S. quality in a
brushless electric motor!
The OMA-5025-375 provides
strong, linear power and
is intended as a
replacement for. 55 -. 61
two-stroke and. 91
four-stroke engines using
6S to 8S Li-Pos. Features
include a unique. O.S. -
designed cooling system,
a strengthened centre
body, large ball
bearings and a stainless
steel propeller driver
for maximum strength and
durability. The motor is
balanced during
manufacture to ensure
optimum running and
reliability.Supplied with
a rear mount and 4mm gold
connectors as standard
accessories.
Specification:Diameter:
50mm Length: 62.5mm Shaft
dia: 6mm Shaft length:
11.5mm Lead wire length:
110mm Male connector: 4mm
diameter Weight: 405g
Poles: 14 Resistance:
27.5mOhm Current range:
50 - 60A kV: 375 Li-Po:
6S - 8S Bearings: 3 ESC
timing: 20-30 degrees
(high) Turns: 16 Max
current: 90A/ 10 seconds
Power output: 1550W
Nominal voltage: 25.9 -
29.6V (7S - 8S Li-Po)
No-load current: 2A Max.
efficiency: 85%
Availability: In Stock
£89.99
Available
-
O.S. MAX 30VG(P) Engine
(L-OS13960) When the
engine in your Monster
Truck is just not quite
enough, yet you are
restricted by the size of
the mounts (21 size),
the new 30VG could be the
answer to your prayers.
This engine is designed
to pack the largest
amount of power into the
smallest possible
crankcase. Supplied with
the P style crankshaft.
Specification: Weight:
360g 12.70ozDisplacement:
5.0cc 0.298cu in. Bore:
18.5mm 0.728in.Stroke:
18.2mm 0.717in Power
Output: 3.0PS@28000
RPMPractical RPM:
4000-36000
Availability: In Stock
£174.99
Available
-
O.S. OMA-3820-1200
Brushless Motor
(M-OS51011000) Legendary
O.S. quality in a
brushless electric motor!
The OMA-3820-1200
provides strong, linear
power and is intended as
a replacement for. 25
two-stroke engines using
3S and 4S Li-Pos.
Features include a
unique. O.S. - designed
cooling system, a
strengthened centre body,
large ball bearings and
a stainless steel
propeller driver for
maximum strength and
durability. The motor is
balanced during
manufacture to ensure
optimum running and
reliability.Supplied with
a rear mount and 3.5mm
gold connectors as
standard accessories.
Specification:Diameter:
37.5mm Length: 47.3mm
Shaft dia: 5mm Shaft
length: 11.5mm Lead wire
length: 90mm Male
connector: 3.5mm diameter
Weight: 155g Poles: 14
Resistance: 21.4mOhm
Current range: 30 - 40A
kV: 1200 Li-Po: 3S, 4S
Bearings: 3 ESC timing:
20-30 degrees (high)
Turns: 10 Max current:
75A / 10 seconds Power
output: 440W Nominal
voltage: 11.1 - 14.8V
No-load current: 1.9A
Max. efficiency: 85%
Availability: In Stock
£49.99
Available
-
O.S. FSa-110 w/F-5040
Silencer (L-OS35410)
Designed specifically to
offer more power and
torque compared to a. 91
size four stroke, yet
still fit in the same
mounting dimensions, the
FSa-110 is a real compact
powerhouse. Like all FSa
series engines, the
FSa-110 has near perfect
carburation across the
RPM range, and thanks to
the carefully designed
exhaust, a soft yet
authoritive note to
minimise your presence to
the neighbours. Precision
carburation, internal
oil recirculation and
dramatic styling are all
features of the FSa range
and put this and the
other derivatives that
cut above the opposition.
Specification: Weight:
600g (672g
w/silencer)Displacement:
18.0cc Bore:
30.4mmStroke: 24.8mm
Power Output: 1.8PS @ 10,
000RPMPractical RPM: 2,
000 - 11, 000
Availability: In Stock
£359.99
Available
-
O.S. MAX 21VZ-B V-Spec.
Engine (21C) (L-OS13890)
The OS tradition of
offering the best 1/8th
scale off road engines is
broughtnew meaning in the
new 21VZ-B V-Spec. As you
would expect, there
areperformance gains from
this new engine to keep
you at the front of the
pack.But thats not all,
OS have given equal
attention to reliability,
ease of handlingand
style. No one will be in
doubt what engine you are
using as you passthem!
Specification:Weight:
360g 12.70ozDisplacement:
3.46cc 0.21cu in. Bore:
16.6mm 0.654in.Stroke:
16.0mm 0.63in Power
Output: 2.48PS@33000
RPMPractical RPM:
3000-40000
Availability: In Stock
£184.99
Available
-
O.S. FSa-72 w/F-5030
Silencer (L-OS34720)
Sharing the same mounting
dimensions as the old
FL-70 and FS-70U, the
new FSa-72 is a simple
bolt-in replacement
offering compact external
dimensions and
power/torque to most
types of model designed
for. 46 2 strokes or. 70
4 strokes. Like all the
FSa series, the FSa-72
has internal crankcase
oil re-circulation, a
super-smooth carburettor
with anti spit inlet and
an ultra-quiet silencer.
If you have a flying
filed noise problem,
then this is the engine
you need for your average
sport model. The new 61N
carburettor provides both
linear and fuel efficient
mixing to gain you
reliability and precison
control at all RPMs.
Specification: Weight:
530g 18.66ozs (inc
Silencer)Propeller Range:
12 x 7, 13 x 6, 13 x 8,
14 x 6, 14 x 7
Displacement: 11.79cc
0.72cu.inBore: 27.0mm
1.063in Stroke: 20.6mm
0.81inPower Output: 1.2PS
@ 11, 000RPM Practical
RPM: 2400 - 12500
Availability: In Stock
£326.99
Available
-
O.S. MAX 10LA Silv. w/871
Silencer (L-OS11411)
Although the smallest
engine in the O.S. range,
the Max 10LA packs quite
a punch, whilst
producing an amazingly
low exhaust note. The
highly baffled exhaust
system is effective yet
does not heavily restrict
the performance. Small
engines also need to be
light, and the Max 10LA
has complementary
features like a plastic
carburettor to help in
this direction.
Specification: Propeller
Range: 7x4 7x5
Availability: In Stock
£56.99
Denmark