Weight and balance

stevemilton@stevemilton

4 Posts

#1 · June 30, 2018, 8:26 pm

The plans review book shows weight and balance data for DA-2A S/N 1. Assuming I set up my spread sheet correctly, 2 FAA 170# people and zero fuel and zero baggage results in a cg at the aft limit. With heavier people or any baggage a minimum level of fuel would be required to stay within limits. For example, 360# of people and 30# of baggage would require 9 gallons of fuel, if my calculations are accurate. Are the weight and balance data for S/N 1 based on an O-200 engine or the original 65hp engine? Also, could the engine be moved forward to provide more aft cg margin?

Rex winfrey@bhcisherenow

70 Posts

#2 · June 30, 2018, 8:35 pm

Hi Steve,

Good question. The W&B for serial number 1 was with the continental 65hp. It does work out a bit better with an O-200. Also remember the seats are movable and the is good leg room so you could move the seats forward some.

Bryan Cass

stevemilton@stevemilton

4 PostsTopic Author

#3 · July 1, 2018, 6:49 pm

Thank you, Bryan. I changed my spread sheet by adding 47# (based on quick internet research) to station 36 to account for the weight difference in the two engines. That resulted in plenty of aft cg margin for most scenarios.

Akamal@akamal

1 Post

#4 · May 11, 2021, 6:43 pm

Does anyone know what is the gross weight when the engine is C90?