A beautiful & chaismatic aircraft, accurately reproduced by Black Horse in semi-scale format. Suited for. 81-.91 size four stoke engines or a. 61 two stroke & 5 channel R/C. The original aircraft played a major role in both the Korean & Vietnamese wars in either communication or spotting roles. Like the original, the model has very docile handling characteristics & good STOL capability, thanks to the highly effective flaps. One was even landed on a US carrier with an escaping family onboard! Construction is from laser cut balsa & ply parts that are factory jig assembled & hand finished. That attractive grey colourscheme comes courtesy of durable Oracover film. The wings can be removed for easy transport.A light aircraft with a difference! Product Specification: Wingspan: 1890mm (74.41in) Length: 1400mm (55.12in) Weight: 3.6kg (7.92lbs) Servos: 7 servos required Radio System: 5 Channel required IC Motor. 55-.61 2-Stroke, . 91 4-Stroke Manufacturer: Black Horse Model / Part No: Bird Dog ARTF (A-BH082)