RE: Penetration
Looks like I am a little late to the discussion, but I understand this as inertia and drag ultimately no?
On an ultralight airplane, power down and stick has to go forward. They are comparatively very light, but also very high drag.
Its kind of like throwing a golf ball and a cotton ball. When I look at it like this, its obvious which will go further.
Am I basically in the right space on this?