Post by R Kym Horsell Post by Bret Cahill Post by Wally W. Post by Bret Cahill Post by Wally W. Post by george152 Post by Bret Cahill Post by george152 Post by Bret Cahill
The prop spins at 3000 rpm to mitigate for the low
I'd expect it to be a lot higher seeing that normal
cruise on Earth is around 2500 rpm
What helicopter has a rotor that spins at 2500 rpm?
The main rotor turns at approximately a 5-6:1 ratio for the tail rotor
and the tail rotor spinning at approximately 2250-3000 rpm.
There IS a helicopter rotor that does 2500
I didn't see anything about the power source .
Or why its a
90 second flight.
Or why they are comparing a "regular helicopter" ... with a
rotor of what size? ... to a 1.8 kg drone.
IOW: comparing apples and oranges.
Or comparing Raptures to science.
Do tell ... why is a "regular helicopter" comparable to a drone
when considering rotor rpm?
Deniers think quad 4 drones have rotor diameters of 1.1 m?
What's a meter?
Specification(T-REX 600E PRO DFC):
Main Blade Length: 600mm
Main Rotor Diameter: 1347mm
Tail Rotor Diameter: 260mm
Motor Drive Gear:13T
Main Drive Gear:112T
Autorotation Tail Drive Gear: 131T
Tail Drive Gear: 34T
Drive Gear Ratio: 1:8.61:3.85
Weight(With Motor): 2290g
I.e. main rotor speed == 290 rpm
tail rotor == 955 rpm
My T-REX 450 runs about 2500-2700 head rpm (main rotor RPM)
A 600 is slightly less, probably about 2200-2400
I havent flown one so I don't have exact numbers.
Tail rotor speed according to your specs for the 600 would be 3.38
My 450 is 4.24 times the head speed with stock gears.