A new cargo aircraft which has attracted the attention of the Air Forces during the year is the YC-122 developed from earlier glider designs by the Chase Aircraft Company. This airplane is basically a short-range aircraft for the transportation of forward-based engineer groups, troops, bulky cargo, and a variety of general utility missions. The YC-122 has a span of 86 ft. 4 in.; length of 56 ft. 7 in.; and height of 21 ft. 4 in. Weight empty is 19,000 lb. and gross weight 31,000 lb.
A strong floor, capable of supporting a uniformly distributed load of 500 lb. per sq. ft. with two longitudinal tread-ways to withstand a wheel load of 4,100 lb. is a feature of the cargo compartment, which is 31 ft. 8¼ in. long; 7 ft. 8 in. wide; and 6 ft. 6 in. high. The interior also may be used to carry 30 fully-equipped troops in three rows of ten individual jump seats. Engine nacelles can be detached by removing four bolts for each nacelle to convert the machine into a glider. Power plant for the production model C-122 is two Wright C-9HD engines rated at 1,425 hp. each for take-off using Curtiss reversible electric propellers.
A larger and heavier assault transport, the XC-123, also has been test flown.