DID YOU KNOW? DTIC has over 3.5 million final reports on DoD funded research, development, test, and evaluation activities available to our registered users. Click HERE
to register or log in.
EVALUATION OF L-23F DE-ICING AND ANTI-ICING SYSTEMS
ARMY AVIATION SCHOOL FORT RUCKER AL
Flight tests were made under simulated light and moderate icing conditions and under natural icing conditions to evaluate the anti-icing and lightweight de-icing systems installed on the production model L-23 F airplane. The antiicing system is essentially the same as that incorporated by the L-23D airplane, while the lightweight de-icing system weighs 80 lb as compared to 144 lb for the heavy de-icing system on the L-23D. The lightweight system is operated from a ground-serviced compressed-air accumulator which when fully charged to 3000 psi will activate the de-icing boots about 75 cycles. The lightweight system failed to remove ice 12 to 34 in. thick from the outboard 3 ft of the wing which was successfully removed by the heavy de-icing system under similar conditions. The lightweight de-icing system was considered unsuitable for Army use on the L-23 airplanes. The anti-icing system was considered suitable for use on L-23 airplanes.