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Posted by vertigo

- May 21, 2024, 15:30:05

Quote from: LL on May 21, 2024, 11:39:28Seems quite dangerous and a much bigger footprint. There are a couple helicopters without tail rotor: Hughes NOTAR, also Kaman and Kamovs with contra rotating propellers

There are also coaxial and tandem rotors, but this isn't just about doing away with the tail rotor; it's about improved speed and efficiency, which the other rotors provide. As for safety, yeah, maybe a bit less safe, but I'm guessing those rotors aren't spinning on the ground except right before takeoff and after landing, and they're probably kept to a minimum while hovering, just enough to offset the main rotor torque while not enough to pull someone into them, not to mention they're placed farther back to keep them as far away as possible and with the wing helping to block them.

Posted by LL

- May 21, 2024, 11:39:28

Seems quite dangerous and a much bigger footprint. There are a couple helicopters without tail rotor: Hughes NOTAR, also Kaman and Kamovs with contra rotating propellers

Posted by Redaktion

- May 21, 2024, 06:12:08

Airbus has been working on a helicopter concept without a tail rotor for several years. The aircraft, known as the Racer, has now flown for the first time for 30 minutes and is now ready for real-world testing.

https://www.notebookcheck.net/Airbus-high-speed-Racer-flies-for-the-first-time.839729.0.html