CT4a Airtrainer - Evaluation of Handling Characteristics with Canopy Removed.
Abstract
Flight traials were conducted to investigate and evaluate the aircraft handling with the canopy removed. Particular emphasis was placed on glide performance and the engine out landing situation. General handling characteristics with the canopy removed were very similar to those with the canopy fitted. There was very little effect on aircraft C sub L the stalling speed and characteristics were very similar and the aircraft was reluctant to spin. Aircraft C sub D was markedly increased with the canopy removed. This was manifest as a noticeable lack of full power climb performance and a significant reduction in glide performance. Aircraft approach and flare speeds with power were unchanged. A ground glide ratio greater than 95% of the optimum could be achieved in the clean configuration at 80 KIAS in zero to 20 knot headwinds, at AUW's from 1900 lb to 2400 lb with the engine windmilling and stopped. Glide performance was significantly better with the propeller stopped. Best endurance glide with an adequate margin above the stall was obtained at 60 to 65 KIAS for the same AUW's with take-off flap extended. The tests showed that engine out approach and landing should be at 80 KIAS using take-off flap.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1976
- Accession Number
- ADA047082