3 ms·

>Side question: what if they replaced the batteries and electric motors with gas tanks and an ICE? Congratulations, you have invented the helicopter.

TeMPOraL 2y ago
I know. Specifically, I reinvented gasoline-powered model RC helicopters, that were all the rage before battery-powered quadcopters became a thing, and scaled them up. I.e. I don't recall anyone trying a "palletrone"-like thing with an ICE-based platform, despite the tech for it being mature for like 50 years or so.
- mschuster91 2y ago
  > I.e. I don't recall anyone trying a "palletrone"-like thing with an ICE-based platform, despite the tech for it being mature for like 50 years or so. You need far greater reaction speeds for a viable quadcopter to remain stable than an ICE, much less a turbojet engine, is capable of. There has been some project featured on here, I think it was a single-prop chopper, kept hovering and centered just by minutely controlling exactly when torque was created by the motor. Absolutely f..ing nuts.
  - TeMPOraL 2y ago
    > I think it was a single-prop chopper, kept hovering and centered just by minutely controlling exactly when torque was created by the motor. Absolutely f..ing nuts. I recall a video of someone sticking a RC chopper rotor to a fixed-wing model aircraft and turning it into a thrust vectoring propeller with software, giving the plane ability to pull some unique acrobatics. > You need far greater reaction speeds for a viable quadcopter to remain stable than an ICE, much less a turbojet engine, is capable of. You can split the problem in two: use ICE to generate thrust, vector it with passive elements on fast-reacting electric servos. Or, you can retain all the electric hardware, but replace the battery with an ICE generator and a gas tank - the main problem here is reducing weight, and gasoline has much better energy density than batteries.
  - namibj 2y ago
    You'll enjoy the stick with a double blade prop on each end, using sub-revolution speed control to do it's thrust vectoring. The second prop is only needed to counter torque, btw.
marcosdumay 2y ago
Hum... Helicopters have several disadvantages for finely controlled flights near the ground. You will probably want to feed a generator and some small battery pack.
madaxe_again 2y ago
No, he has invented the Hover Barrow - as seen in 1960. https://m.youtube.com/watch?v=OmJ-8JMw_l4 https://m.youtube.com/watch?v=OmJ-8JMw_l4
taneq 2y ago
I believe given the context, where it's flying indoors in a populated area, this is more like the "manhack" drones from Half Life. :P

TeMPOraL 2y ago

I know. Specifically, I reinvented gasoline-powered model RC helicopters, that were all the rage before battery-powered quadcopters became a thing, and scaled them up. I.e. I don't recall anyone trying a "palletrone"-like thing with an ICE-based platform, despite the tech for it being mature for like 50 years or so.

mschuster91 2y ago
> I.e. I don't recall anyone trying a "palletrone"-like thing with an ICE-based platform, despite the tech for it being mature for like 50 years or so. You need far greater reaction speeds for a viable quadcopter to remain stable than an ICE, much less a turbojet engine, is capable of. There has been some project featured on here, I think it was a single-prop chopper, kept hovering and centered just by minutely controlling exactly when torque was created by the motor. Absolutely f..ing nuts.
- TeMPOraL 2y ago
  > I think it was a single-prop chopper, kept hovering and centered just by minutely controlling exactly when torque was created by the motor. Absolutely f..ing nuts. I recall a video of someone sticking a RC chopper rotor to a fixed-wing model aircraft and turning it into a thrust vectoring propeller with software, giving the plane ability to pull some unique acrobatics. > You need far greater reaction speeds for a viable quadcopter to remain stable than an ICE, much less a turbojet engine, is capable of. You can split the problem in two: use ICE to generate thrust, vector it with passive elements on fast-reacting electric servos. Or, you can retain all the electric hardware, but replace the battery with an ICE generator and a gas tank - the main problem here is reducing weight, and gasoline has much better energy density than batteries.
- namibj 2y ago
  You'll enjoy the stick with a double blade prop on each end, using sub-revolution speed control to do it's thrust vectoring. The second prop is only needed to counter torque, btw.

marcosdumay 2y ago

Hum... Helicopters have several disadvantages for finely controlled flights near the ground. You will probably want to feed a generator and some small battery pack.

madaxe_again 2y ago

No, he has invented the Hover Barrow - as seen in 1960. https://m.youtube.com/watch?v=OmJ-8JMw_l4 https://m.youtube.com/watch?v=OmJ-8JMw_l4

taneq 2y ago

I believe given the context, where it's flying indoors in a populated area, this is more like the "manhack" drones from Half Life. :P