RCU Forums - View Single Post - DynaFlite Super Decathlon Kit Bash and Build
Old 11-01-2013 | 05:30 AM
  #44  
mattnew
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From: Haverhill, MA
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Originally Posted by beepee
In my case a lighter engine would not have helped. My SD came out tail heavy. That said, an 18" prop was about maximum for me unless I wanted to do some grass cutting. That may not be enough prop on the DLE50 unless you go with a 3-blade.

Have fun!

Bedford

tail heavy is something I have been struggling with avoiding throughout the build... more pics shortly, But in short... my tail feathers currently weigh 9 oz.. and my engine weighs 43oz... the ratio of tail moment to engine moment from the CG is 3:1 so 9 oz on the tail balances 27oz at the engine. But I haven't included covering or the body that extends behind the CG,and that is going to easily be a lb or so. which means my tail is going to be heavier than my engine.... I will have to work to keep the plane balanced as I go forward.