My Plans.
Outerzone plans.
Hi friends
I have a Great planes Sportster Bipe which I built two years ago.
Im having CG issues.
The plans that came with mine show a different CG location than the plans on outerzone.
when I attempted to balance mine according to my plans I had to add ungodly amounts of lead to the nose to get it balanced.
I’m using an OS SF .45 ( yes-it’s a .45) for power.
When I attempted to fly it the plane was so nose heavy that the slightest bump in the grass would flip it upside down nomatter how much up-elevator I gave it.
I never could get it airborne.
Others have said that they used the same engine to balance theirs without adding weight so my plans must be incorrect.
I’m posting a picture of the CG on my plans as well as the plan from outerzone.
Has anybody had this issue?
If you are currently flying a Sportster Bipe can you please give me the CG measurement that you have?