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  #1  
Old 01-21-2019, 08:06 PM
kenemuston@gmail.com kenemuston@gmail.com is offline
 
Join Date: Jan 2019
Location: Shepparton, Victoria, Australia
Posts: 1
Default Nose gear leg strength

I have been flying my RV-6A for 18 years 1500 hours and have always been apprehensive about the strength of the nose gear leg, now my grandson has started his flying career at 14 learning in the RV.
I again started the conversation about the gear leg strength and was advised Anti Splat build a strengthening bracket. How is it I did not know this. Well I ordered it, got it installed in an hour, what a nice piece of engineering, and I sleep better now when my grandson flies it.
If like me you did not know about the ?nose job one or two?, I suggest you check it out, it could save your life.
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  #2  
Old 01-22-2019, 09:48 AM
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airguy airguy is offline
 
Join Date: Oct 2006
Location: Garden City, Tx
Posts: 5,145
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My uncle pranged my 9A in on a landing hard enough to leave half my nose wheel pant on the runway, I found witness marks on the nose gear leg that showed the Anti-Splat brace made full contact with the flexing gear leg. Did it prevent a failure and noseover? Can't say - but it didn't happen, and I'm glad I installed it.
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Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.
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  #3  
Old 01-22-2019, 10:03 AM
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flightlogic flightlogic is offline
 
Join Date: Nov 2013
Location: Prescott, AZ
Posts: 1,614
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So, I just got done with the transition training for the 9A owner in Tucson. He did well, for a Cessna pilot. I do see the tendency to round out and flare too high in the 9A. This could lead to a big "drop" in landing and then potential impact on the nose gear. This build has Alan's anti-splat under the fairing. And a lip skid. But, my advice for owners is to never even come close to using them. I treat the nose like a glass slipper. Elevator comes all the way aft during the landing rollout... until there just isn't enough elevator authority to keep the nose off the runway. And on takeoff, it comes up almost immediately... and roll along at takeoff angle of attack until it flies off by itself. One takeoff... holding about 75 indicated, resulted in the same deck angle as the 737 that was lifting to our left off runway 11 at Tucson. The new owner was shocked.... to say the least. Cruise climb at about 110 suited him better. I had to throttle back enroute as it was nudging the yellow arc and ground speed was 213. It showed me a Lycon IO-360 and CS prop is just the upper comfortable limit, (for me) on a 9A.
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  #4  
Old 01-22-2019, 07:25 PM
pa38112 pa38112 is offline
 
Join Date: Mar 2008
Location: Clarksboro, NJ
Posts: 829
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Ken,
The nose job is only 1/2 the solution. You also need to modify the nose wheel axel or bearings. I would suggest the Matco axel.

http://www.matcomfg.com/AXLEASSEMBLY...dv-3657-1.html

It is not a hard landing that causes the nose-over. It is the front wheel locking up as a result of a hard landing (or digging into a rut). I the case of a hard landing, the thin Vans axel deflects and puts enough load on the taper bearings to lock them up - or at least that is the commonly accepted theory.
The Matco axel is an $80 solution that takes less than an hour to install.
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  #5  
Old 01-23-2019, 05:52 AM
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bret bret is offline
 
Join Date: Feb 2010
Location: Gardnerville Nv.
Posts: 2,828
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Quote:
Originally Posted by pa38112 View Post
Ken,
The nose job is only 1/2 the solution. You also need to modify the nose wheel axel or bearings. I would suggest the Matco axel.

http://www.matcomfg.com/AXLEASSEMBLY...dv-3657-1.html

It is not a hard landing that causes the nose-over. It is the front wheel locking up as a result of a hard landing (or digging into a rut). I the case of a hard landing, the thin Vans axel deflects and puts enough load on the taper bearings to lock them up - or at least that is the commonly accepted theory.
The Matco axel is an $80 solution that takes less than an hour to install.
Or the Anti Splat stock front wheel bearing mod.
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  #6  
Old 01-23-2019, 10:44 AM
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robertahegy robertahegy is offline
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Join Date: Jan 2005
Location: East Troy, WI
Posts: 1,983
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I think the Piper Cherokee nosewheel bearing setup is the best design. Uses standard size bearings and an adequate axle. Easy to service, too.

Roberta
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  #7  
Old 01-23-2019, 04:47 PM
rockwoodrv9 rockwoodrv9 is offline
 
Join Date: Dec 2011
Location: Meridian ID, Aspen CO, Okemos MI
Posts: 2,645
Default Nose wheel example not to follow.

Quote:
Originally Posted by robertahegy View Post
I think the Piper Cherokee nosewheel bearing setup is the best design. Uses standard size bearings and an adequate axle. Easy to service, too.

Roberta
Think a Vans could handle this? I cant believe this Piper made it!!
https://www.youtube.com/watch?v=Qa12..._mpmubIneBskiB
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  #8  
Old 01-23-2019, 07:13 PM
DaveO DaveO is offline
 
Join Date: Dec 2012
Location: Greenfield, IN
Posts: 341
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I turned my RV7A upside down due to a stupid landing on my part. I had the AntiSplat on my nose gear. The moral of the story do not land on the nose gear. I think it will be good until it isn't. Do not rely on something else to keep you out of trouble.
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  #9  
Old 01-24-2019, 06:54 AM
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snopercod snopercod is offline
 
Join Date: Aug 2016
Location: Asheville, NC
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Quote:
Originally Posted by rockwoodrv9 View Post
Think a Vans could handle this?
What the heck was that?
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  #10  
Old 01-24-2019, 07:02 AM
Kyle Boatright Kyle Boatright is offline
 
Join Date: Aug 2005
Location: Atlanta, GA
Posts: 4,218
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Quote:
Originally Posted by rockwoodrv9 View Post
Think a Vans could handle this? I cant believe this Piper made it!!
https://www.youtube.com/watch?v=Qa12..._mpmubIneBskiB
The right gear strut may not have survived. Note how much lower it is riding than the left gear strut.
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