HELI /GYRO ROTORS

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skyrider

Member
Joined
Nov 5, 2008
Messages
24
Location
Newcsatle N.S.W. Australia
G'day All,
Is there a difference between airfoils used on Helicopters and Gyro's.
Could a Helicopter rotor blade be used successfully on an Autogyro to perhaps provide greater lift in a gyro designed for cross country travel and a heavier payload ie luggage and fuel.
For example........a set of blades from an R44 fitted to an Autogyro with 2 seats fuel for 800 plus miles and baggage.

Cheers

Rob
 

TFF

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Apr 28, 2010
Messages
16,181
Location
Memphis, TN
I think it is opposite. Most small helicopters have symmetrical blades to keep the leverage to move them consistent through the range of motion. When the blades move to a flat bottomed airfoil they start having power steering controls. Because gyro blades dont feather they can use a flat bottom airfoil. Not sure of the R44 but it would be a big gyro. I think your range is a little optimistic most small helicopters have a 2 1/2 hour endurance and every gyro I have seen is slower. 800 miles at 70mph sounds rough.
 

greywuuf

Active Member
Joined
Nov 4, 2010
Messages
36
Location
Alaska
Generally speaking greater lift=greater drag
so more lifting capacity is usually offset by either more Horsepower or reduced speed.
 

skyrider

Member
Joined
Nov 5, 2008
Messages
24
Location
Newcsatle N.S.W. Australia
Thanks for the replies..........not a great deal of info regarding rotorcraft available.
Have a look at the CALIDUS and ARROW AC10 gyro's they have cruise speeds of around 100mph and 5hrs endurance..........not to shabby for a gyro.

Cheers

Rob
 

Dan Thomas

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Sep 17, 2008
Messages
6,603
Thanks for the replies..........not a great deal of info regarding rotorcraft available.
Have a look at the CALIDUS and ARROW AC10 gyro's they have cruise speeds of around 100mph and 5hrs endurance..........not to shabby for a gyro.

Cheers

Rob
I would take numbers like that with some skepticism. You might get 100 MPH and you might get 5 hours, but I doubt you'll get both at the same time.

Dan
 
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