View Full Version : wing"s ??
hawhi
01-13-2012, 10:22 PM
hello
my gyro is 251lb with 5gal of fuel
i weight 188lb
what is the recommended lengte of rotor blade ?
short or long hub?
i use 503 rotax with 3 blade ivoprop (sea level)
are 23ft dragon wing will go?
thank'ss
Aviomania
01-14-2012, 07:25 AM
with that weight (including fuel) it means you have no prerotator. If this is the case Dragon wings are not recommended... unless you buy a very light prerotator.
So.... do you have a prerotator?
dabkb2
01-15-2012, 08:58 AM
To get the AUW you will need to know the wieght of the blades as well.
hawhi
01-15-2012, 09:33 AM
hi
i have Wunderlich prerotetor
are all the rotor blade turm the same way on a pusher gyro?
thanks
Doug Riley
01-15-2012, 11:33 AM
If Ilan is asking about rotor blades, he may not have any on his machine -- hence the light weight.
I'd use 23-foot Dragon Wings.
jcarleto
01-15-2012, 12:26 PM
Most helicopter rotors turn the opposite direction from most gyroplane rotors. The common brands of gyroplane rotors are made currently all turn counter-clockwise as viewed from above, or retreating blade on the left (port) side.
Not many people use helicopter rotors on gyroplanes anymore. They were somewhat popular for a time, but are heavy and more complicated to track, besides running "backwards" and requiring a reversed pre-rotator.
Rotor Rooter
01-15-2012, 01:57 PM
Actually, the direction of rotation of gyrocopter rotors and helicopter rotors should be the same.
The reason for having clockwise-rotation or counter-clockwise-rotation is dependant on the weather.
The whether being; are you are flying in the Northern Hemisphere or the Southern Hemisphere?
To determine the correct direction, go and have a few beer. Then flush the toilet. The rotor should turn in the opposite direction to that of the water so that they can take advantage of 'swirl recovery'.
http://www.unicopter.com/Anonymous.gif
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:D . :focus:
Mike484
01-15-2012, 02:06 PM
Rotor Rooter; Actually, the direction of rotation of gyrocopter rotors and helicopter rotors should be the same.
The reason for having clockwise-rotation or counter-clockwise-rotation is dependant on the weather.
The whether being; are you are flying in the Northern Hemisphere or the Southern Hemisphere?
To determine the correct direction, go and have a few beer. Then flush the toilet. The rotor should turn in the opposite direction to that of the water so that they can take advantage of 'swirl recovery'.
So, do the guys down under have their blades turning clockwise? I have heard about the toilets swirling in the oppisite direction between northern and southern hemispheres but does thie really mean the blades should turn in the opposite direction too?
Rotor Rooter
01-15-2012, 02:48 PM
Hi Mike,
The post was done as a humorous one. The subject reminded me of an old group of postings on PPRuNe many years ago.
Southern Hemisphere Operators Sue Helicopter Manufactures (http://www.pprune.org/rotorheads/153019-southern-hemisphere-operators-sue-helicopter-manufactures.html#post1617570)
Dave
Mike484
01-15-2012, 05:19 PM
Guess I just let that one go right over my head.
hawhi
01-16-2012, 04:49 AM
doug
i owe you a pack of sixbeer
i will buy a 23" dragon wing
thanks
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