Blog :: Vertical Magazine News :: Vertical rewind: Tip-powered pioneer
Tip-jet UAV Unveiled by Unmanned Systems | Defense News: Aviation International News
Why are tip jet helicopters so rare, even though it doesn't seem very complex and would work fine with current engines, like turbines or any kind of compressor? - Quora
What Are Tip Jet Helicopters? | Flite Test
EDF Tip-Jet Helicopter concept by SammfeatBlueheart on DeviantArt