While wandering about on the internet, I stumbled on this. YMMV
Wayne From:http://en.m.wikipedia.org/wiki/Douglas_A-1_Skyraider Shortly after Heinemann began design of the XBT2D-1, a study was issued that showed for every 100 lb (45 kg) of weight reduction the takeoff run was decreased by 8 ft (2.4 m), the combat radius increased by 22 mi (35 km) and the rate-of-climb increased by 18 ft/min (0.091 m/s). Heinemann immediately had his design engineers begin a program for finding weight-saving on the XBT2D-1 design, no matter how small. Simplifying the fuel system resulted in a reduction of 270 lb (120 kg); 200 lb (91 kg) by eliminating an internal bomb bay and hanging the bombs, drop tanks and rockets from the wings or fuselage; 70 lb (32 kg) by using a fuselage dive brake; and 100 lb by using an older tailwheel design. In the end, Heinemann and his design engineers found over 1,800 lb (820 kg) of weight savings on the original XBT2D-1 design.
