Unusual notches on very old boomerang

Bob A · 8th January 2018, 05:13 PM

Vortex generators are often used on the leading edge of aircraft wings to permit the wing to operate efficiently at low speeds. If these notches have a similar effect, it would keep the boomerang flying at lower rotational speeds, presumably.

Vortex generator:
https://en.wikipedia.org/wiki/Vortex_generator

Battara · 8th January 2018, 10:40 PM

Yeah..........what Bob said........

8th January 2018, 05:13 PM	#1
Bob A Member Join Date: Feb 2014 Posts: 444	Vortex generators are often used on the leading edge of aircraft wings to permit the wing to operate efficiently at low speeds. If these notches have a similar effect, it would keep the boomerang flying at lower rotational speeds, presumably. Vortex generator: https://en.wikipedia.org/wiki/Vortex_generator

8th January 2018, 10:40 PM	#2
Battara EAAF Staff Join Date: Dec 2004 Location: Louisville, KY Posts: 7,326	Yeah..........what Bob said........