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01-21-2019, 08:06 PM
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Join Date: Jan 2019
Location: Shepparton, Victoria, Australia
Posts: 1
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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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01-22-2019, 09:48 AM
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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.
__________________
Greg Niehues - SEL, IFR, Repairman Cert.
Garden City, TX VAF 2020 dues paid 
N16GN flying 700 hrs and counting; IO360, SDS, WWRV200, Dynon HDX, 430W
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.
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01-22-2019, 10:03 AM
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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.
__________________
"Kindness is never a bad plan."
exemption option waived. Donation appropriate.
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01-22-2019, 07:25 PM
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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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01-23-2019, 05:52 AM
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Join Date: Feb 2010
Location: Gardnerville Nv.
Posts: 2,828
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Quote:
Originally Posted by pa38112
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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Or the Anti Splat stock front wheel bearing mod.
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7A Slider, EFII Angle 360, CS, SJ.
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01-23-2019, 10:44 AM
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Moderator/Tech Counselor
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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
__________________
Roberta Hegy
Built/Flew an RV-7A
Air Troy Estates, East Troy, WI
Ford Expedition and TRICE "Q"
Built Glen L "ZIP" Classic Outboard Runabout and Super Spartan Hydroplane
Glen L Torpedo
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01-23-2019, 04:47 PM
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Join Date: Dec 2011
Location: Meridian ID, Aspen CO, Okemos MI
Posts: 2,645
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Nose wheel example not to follow.
Quote:
Originally Posted by robertahegy
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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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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rockwoodrv9a
Williamston MI
O-320 D2A
Awaiting DAR Inspection
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01-23-2019, 07:13 PM
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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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Dave
RV-7A N1243A Sold
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01-24-2019, 06:54 AM
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Join Date: Aug 2016
Location: Asheville, NC
Posts: 2,104
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Quote:
Originally Posted by rockwoodrv9
Think a Vans could handle this?
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What the heck was that?
__________________
(2020 dues paid)
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01-24-2019, 07:02 AM
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Join Date: Aug 2005
Location: Atlanta, GA
Posts: 4,218
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Quote:
Originally Posted by rockwoodrv9
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The right gear strut may not have survived. Note how much lower it is riding than the left gear strut.
__________________
Kyle Boatright
Marietta, GA
2001 RV-6 N46KB
2019(?) RV-10
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