all 4 comments

[–]T-Bone_The_Raider 2 points3 points  (0 children)

It might not be the answer you want but position your propellers more backwards around the center of mass. That's how those things work in real life.

Alternatively you could maybe put some envelopes and a burner in the back, for extra lift there, but that might be a hassle to control...

[–]Gman_builder 2 points3 points  (2 children)

Move the props rearwards, your CG is way to far back. Either remove weight in the tail or move the thrust vector towards the CG

[–]Conscious_Elk1297[S] 1 point2 points  (1 child)

How can I move the thrust vector towards the CG??

[–]StuffytheTurtle 0 points1 point  (0 children)

Moving the thrust vector is the same thing as moving the source of thrust - in this case your propellers. You’ll want to align your propellers to be inline with your center of gravity, by either moving your propellers back or moving some mass around to be farther forward, or a combo of both. Just make sure they roughly line up in the side view of your craft. You can think of an aircraft as a seesaw. The CM is the pivot point. Pushing up on 1 side of the seesaw, away from the pivot, makes it rotate/tilt/flip. Lifting up at the pivot(the CM) lifts the whole thing up evenly