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I recall reading something about a Sikorsky design (not the 333) that was never acted upon. I’ll see if I can find it.Like what?
They briefly owned Schweitzer and unloaded them because light helos are just a tough place to make money.
There’s a reason that Robinson builds everything around the same basic airframe. Both the 505 and the 407 leverage the original 206 certification. Designing a clean sheet small helo is unlikely to ever make its development cost back.
They’ve got to make the 60 pay off longer by offering things like the U-Hawk and installing MOSA. They’ve also got to get people to buy their X2 tech.
The second one is hopeless—everyone knows X2 sucks. So they are leaning even more into the 60.
No apologies... I Love Tandem Rotor Helicopters!!!
During the '50s through'70s there was worldwide interest in Tandem Rotors.
Filper Beta 200- A tandem rotor helicopter using the "Gyroflex" system, special balance weights fitted to the roots of the rotor blades. First flying in 1966 with only 3 built.
View attachment 43975
Especially since after the 737 MAX debacle, getting anything certified became a much more difficult and costly ordeal. That's one of the reasons the 525 took so long to become operational.There’s a reason that Robinson builds everything around the same basic airframe. Both the 505 and the 407 leverage the original 206 certification. Designing a clean sheet small helo is unlikely to ever make its development cost back....
You mean besides crashing and repeatedly failing FAA cert flights?Especially since after the 737 MAX debacle, getting anything certified became a much more difficult and costly ordeal. That's one of the reasons the 525 took so long to become operational.
Fun fact I guess I can share since I no longer work for Bell: Apparently there's a rumored Bell 529. I have no idea what it is because literally the only time I ever heard anything about it was during meetings when they were telling us not to talk about the 529.
That’s an electrically driven tail rotor I think. Each one is powered independently of each other and the main rotor.What the....?
View attachment 43991
Yep. The goal is to increase reliability and redundancy. No long driveshaft to break or gearboxes to chip.That’s an electrically driven tail rotor I think. Each one is powered independently of each other and the main rotor.
Because it’s the drive system that has failed on me repeatedly in my career and not the electrical….Yep. The goal is to increase reliability and redundancy. No long driveshaft to break or gearboxes to chip.
As with many things, easier to build than to certify.
Point taken, though if it’s a permanent magnet generator driving it, it’s unlikely to fail, and you can have four of these, vice just one tail rotor.Because it’s the drive system that has failed on me repeatedly in my career and not the electrical….
No gearbox=no chips.Seems you might have 4 x chip lights / other bad things happen.
Just thinking about this is a sandy/dusty operational environment.Seems you might have 4 x chip lights / other bad things happen.