Aircraft Gun Icing Evaluation
Abstract
This report discusses the results of icing tests conducted on the M28A1 Turret, the 7.62mm, M134 Gun, the 40mm, M129 Grenade Launcher and the 20mm, M195 Gun. The results indicate that all of the weapons can be fired without catastrophic damage after accumulating as much as 1 1/4 inches ice on the muzzle. The use of gas deflectors and/or flash suppressors allow the weapons to be fired without any damage occurring from ice accumulation of up to 1 1/4 inches. The turret suffered only minor limitations of movement, when coated with 1 1/4 inches of ice. The extreme limits of elevation could not be attained due to ice jamming the stops but about 85 percent of the excursion distance was operable. A build-up of over 3/8 inches of ice on one side of the turret will limit the azimuth movement in one direction only. A heavy ice build-up cannot pass the close gap between turret and aircraft fairing behind the turret. This situation can be prevented by pointing the guns into the wind causing the ice build-up to be on the front turret surface.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1977
- Accession Number
- ADA039834
Entities
People
- Max L. Coppock
- Merrill D. Gerke