Balance Question - RCCanada - Canada Radio Controlled Hobby Forum
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Old 10-27-2010, 02:53 PM   #1
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Balance Question

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I have been having problems with my H9 Spitfire noseing over on landings. It balances perfectly with an empty tank. Would balancing it with a full tank help with the nose over problem on landing.
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Old 10-27-2010, 03:05 PM   #2
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Re: Balance Question

Normally you balance with an empty tank.

The easiest fix with a taildragger is to move the wheels ahead a bit by bending the gear forward. With retracts this may be impossible.
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Old 10-27-2010, 03:14 PM   #3
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Angry Re: Balance Question

Yes I have retracts, if I bend them they will not fit in the wings
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Old 10-27-2010, 03:25 PM   #4
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Re: Balance Question

Add some more elevator throw and get on it as soon as you touch down..........roll the field as well

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Old 10-27-2010, 03:26 PM   #5
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Re: Balance Question

Get used to it. Warbirds are notorious for nose overs.
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Old 10-27-2010, 03:51 PM   #6
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Re: Balance Question

Another possible solution is to make the aircraft SLIGHTLY nose heavy for better ground handling. USe high rate on the elevator when on the ground when taxiing with bursts of power instead of a constant speed, that way the prop wash will have a tendency to keep the tail down with up elevator, unless the wheels are small and the ground reasonably rough.
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Old 10-27-2010, 06:15 PM   #7
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Re: Balance Question

you could also shim the retract mount so the gear travels further forward when they open,this will cause the wheel to not quite sit flush when up but they will travel further forward when open.also a narrow wheel with the largest diameter will help ,try to keep some power on when landing and cut it slowly after toughing down while increasing elevator,and cut that grass LOL . Roger
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Old 10-27-2010, 06:51 PM   #8
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Re: Balance Question

Had the same problem with my (heavily modified) H9 Corsair. It's a hassle but if you fit 100 deg. retracts (Robarts in my case) rather than the 90's I assume you have then the struts can be angled 10 deg. more forward and still fit in the wells- worked for me!
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Old 10-27-2010, 07:53 PM   #9
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Re: Balance Question

Do you have a lot of toe out on the gear? Might be slowing it down too quickly on landing...
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Old 10-28-2010, 10:14 AM   #10
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Re: Balance Question

As what the other guys above me mentioned (particularly shimming the rear retract mount so that the gear ends up a bit further forward in the down position a RAMJET mentions)

And don't forget to lube the axles. It was already mentioned on these forums a few weeks ago. It seems to help (your results may vary)
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