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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › Why clockwise rotation ?
02-28-2010 11:13 PM  10 years ago
Raptor Pilot

rrVeteran

Northern Ireland U.K

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[/quote]you CAN run a 2-stroke engine backwards, but you need different timing on the ports for it to develop the same power.[quote]
The only thing differnt you need is a crankshaft with the fuel inlet machined to suit anti clockwise rotation. I have already done this years ago and made my own crankshaft from some 24 T so that i could fit ordinary propellors to a delta aircraft i had with a pusher designed engine. Pusher props the size i was looking were very hard to get so this was my soultion. The engine ran within 20 r.p.m on a tacho with the same prop and each differnt crankshaft fitted so it can be done.
If it doesnt move and its meant too... use WD 40. If it moves and its not meant too...use duct tape!
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03-01-2010 02:30 AM  10 years ago
warrior29

rrApprentice

Jacksonville, FL

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I fly CW and CCW helicopters every day. It makes little difference to the pilot which way the rotor rotates, you just step on the opposite pedal to keep the nose straight. What is a pain is western throttles roll up to the left, eastern helo's throttle roll up to the right. Now that WILL get you into trouble if you confuse that!Credit card can't be max'ed I have more up grades to buy!
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03-01-2010 02:47 AM  10 years ago
GimbalFan (RIP)

rrProfessor

Big Coppitt Key, FL

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western throttles roll up to the left, eastern helo's throttle roll up to the right.
Mind boggling.

I predict full-size engine throttles even on piston helis will soon nearly all be automated. There's real value both in safety and wear & tear in a constantly optimized headspeed. Dial in a desired rpm, then set & forget 'til touchdown.
op-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-t
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03-01-2010 03:03 AM  10 years ago
jschenck

rrProfessor

La Vista, NE.

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What is a pain is western throttles roll up to the left, eastern helo's throttle roll up to the right. Now that WILL get you into trouble if you confuse that!
man, kind of like those old crazy motorcycles that have the shift pattern all wrong like cycling through the gears by clicking down on the shifter and even worse when you get to the top gear one more press and you are back in 1st gear Good thing the industry decided to standardize on shift pattern, clutch, front brake and throttle location and operation. Bad enough to have a crazy Italian motorcycle to throw in rear brake and shifters on the wrong side.

can't imagine trying to drive a motorcycle where the throttle twists the wrong direction
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03-01-2010 03:11 AM  10 years ago
cdrking

rrElite Veteran

Seattle

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I could always tell if someone rode motorcycles when they got in the R-22 for training. Dang it, some of them would roll the throttle off when they meant to roll it on. Keeps you on your toes.

Jeff
To hover is divine, the alternative is rather PLANE.
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03-01-2010 03:29 AM  10 years ago
GimbalFan (RIP)

rrProfessor

Big Coppitt Key, FL

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I'd like to see automated target headspeed detents on the grip instead of throttle control, with a corresponding indicator on the panel, something like:

1) Idle (start)
2) Standby (high idle for loading/offloading pax)
3) Standard Cruise
4) Performance Cruise
5) Max Power (for emergency use only)
op-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-t
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03-02-2010 06:55 PM  10 years ago
Old Slow Rotor

rrNovice

Elk Grove CA

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stand ....on that right rudder
clockwise rotation....It might have been done that way deliberatly (standardization) and because it would be easier to train american fixed wing pilots converting to helicopters....

Stand on the right rudder when applying power for hover, just like they had to stand on the right rudder during takeoff due to prop torque.

Get into forward flight, easy off on the rudder, just like easeing off on the rudder in a WWII airplane...

American pilots would jump into a seafury which torques opposite and ground loop the thing because their reflexs where so trained to stand on the 'right rudder" when applying the power.

Same thing for the european guys hopping in to a mustang they stood on the left rudder when applying power....the "adjustment" was not always automatic, and usually worse if there was some sort of emergency.
GMP/Schulter/ Graupner Bell 222/HK600GT/X-cell Ct 60/ RCA MD500E
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03-02-2010 09:48 PM  10 years ago
GimbalFan (RIP)

rrProfessor

Big Coppitt Key, FL

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it would be easier to train american fixed wing pilots converting to helicopters.... Stand on the right rudder when applying power for hover, just like they had to stand on the right rudder during takeoff due to prop torque. Get into forward flight, easy off on the rudder, just like easeing off on the rudder in a WWII airplane...
I'll bet you're right.
op-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-thwop-t
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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › Why clockwise rotation ?
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