Saber-shaped propellers

Saber-shaped propellers have proven their high efficiency, low noise and long service life. The smallest diameter is 1600 mm, the largest is 2000 mm. The propeller with a diameter of 1820/1840 mm is certified for the Savage aircraft. There are 2, 3, 4 and 6-bladed variants. Incredibly high efficiency was shown by 2-blade variants with a diameter of 2000 mm.

New Black Wing Propeller.  Designed for engines up to O-320. With SAE-2 hub, the diameter is 71". The blade width is 5.3". Hopefully RV airplane owners will have a chance to objectively compare the "Black Wing" to the new Hartzell propeller.