X-29 SD Under-wing racks were fitted for

Under-wing racks were fitted for bombs or drop tanks

This displacement increased year by year due to the addition of radar

armament: 1 30mm RARDEN cannon

but was inferior to the T-64 and T-72 series vehicles

X-29 SD Under-wing racks were fitted forThe Grumman X 29 was an American experimental aircraft that tested a forward swept wing , canard control surfaces, and other novel aircraft technologies. The X 29 was developed by Grumman , and the two built were flown by NASA and the United States Air Force . The aerodynamic instability of the X 29's airframe required the use of computerized fly by wire control. Composite materials were used to control the aeroelastic divergent twisting experienced