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Old Apr 11, 2012, 12:05 AM
DNZ
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Joined Aug 2010
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Tricycle Landing Gear

I am setting up a tricycle landing gear on a plane with a 27 inch long fuselage. Any ideas on how far apart the nose wheel should be from the main landing gear? Is there any general rule of thumb when installing?
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Old Apr 11, 2012, 12:56 AM
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Perth, Western Australia
Joined Sep 2004
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Its the rear wheels that are most critical. They need to be just behind the centre of gravity, so that only a bit of up elevator is needed to make the plane rotate and take off. Usually the nose gear is just behind the motor, but this is not critical.
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Old Apr 11, 2012, 09:49 PM
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United States, MD, Elkton
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And it's a good idea to not have too much throw,of course..full deflection should yield about a 8 ' circle...
the aircraft should sit level,not nose down.If too much elevator is required ,it'll 'leap' off the runway into a steep climb.
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Old Feb 23, 2014, 03:15 PM
yank and bank!!
Joined May 2013
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Had to post my experiences on this after working out the bugs in a scratchbuilt....

It bears mentioning that the placement of the mains is ALSO to reduce the weight on the nose gear; it makes a big difference preventing damage to the nose gear and reduces the tendency for the nose gear to be squirrely. I can push the tail down on mine with a lot less force now and the plane doesn't fall on it's tail until I tip it way back.

I also believe that the further forward the nose gear is, the less impact it will receive when the nose sets down, kinda like less lever effect on the nose gear.
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