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kboatright1(at)comcast.ne
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 Posted: Sat Aug 26, 2006 7:09 pm Post subject: Tire Wear |
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I'm sure it varies from aircraft to aircraft.
On my RV-6, I get more wear on the outside of the tires, because I typically fly at lighter weights, which doesn't flex the gear as much and causes.... wear on the outside of the tire. Someone who operates a heavy aircraft will flex the gear more, and will have more wear towards the inside of the tire.
My biggest wear area is on the right tire, because I still have not learned how to keep from occasionally dragging the right brake on takeoff.
KB
[quote] ---
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Gary.A.Sobek
Joined: 09 Jan 2006
Posts: 217
Location: SoCAL USA
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| Posted: Sat Aug 26, 2006 7:45 pm Post subject: Tire Wear |
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Pete:
Yes they wear more on the outside.
Left tire wears the most on the outside. (P-factor and need for right
rudder on full power takeoff)
Rotate tires when 1/2 worn out to get the most landing out of your tires.
Gary A. Sobek
"My Sanity" RV-6 N157GS O-320 Hartzell,
1,936 + Flying Hours So. CA, USA
http://SoCAL_WVAF.rvproject.com
----Original Message Follows----
From: PeterHunt1(at)aol.com
Reply-To: rv-list(at)matronics.com
To: rv-list-digest(at)matronics.com, RV6-list(at)matronics.com
Subject: Tire Wear
Date: Sat, 26 Aug 2006 22:54:28 EDT
Over time, do RV main tires wear more on the outside or the inside treads?
Pete
RV-6, 123 hours.
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jsflyrv(at)verizon.net
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| Posted: Sat Aug 26, 2006 10:39 pm Post subject: Tire Wear |
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RV6 Flyer wrote:
| Quote: |
Pete:
Yes they wear more on the outside.
Left tire wears the most on the outside. (P-factor and need for
right rudder on full power takeoff)
Rotate tires when 1/2 worn out to get the most landing out of your tires.
Gary A. Sobek
"My Sanity" RV-6 N157GS O-320 Hartzell,
1,936 + Flying Hours So. CA, USA
http://SoCAL_WVAF.rvproject.com
----Original Message Follows----
From: PeterHunt1(at)aol.com
Reply-To: rv-list(at)matronics.com
To: rv-list-digest(at)matronics.com, RV6-list(at)matronics.com
Subject: Tire Wear
Date: Sat, 26 Aug 2006 22:54:28 EDT
Over time, do RV main tires wear more on the outside or the inside
treads?
Pete
RV-6, 123 hours.
Mine wear most on the inside, I am sure that it is because the gear is
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not aligned as it should be,
I do go through tires much faster than I like.
Jerry
do not archive
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aerobubba(at)earthlink.ne
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| Posted: Sun Aug 27, 2006 4:24 am Post subject: Tire Wear |
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Hi Pete-
Re: Over time, do RV main tires wear more on the outside or the inside
treads?
Yes, they do. Crosswind landings made in a slip put wear on the outboard
edges of tires. The same principle applies to all aircraft.
glen matejcek
aerobubba(at)earthlink.net
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wnorth(at)sdccd.edu
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| Posted: Sun Aug 27, 2006 9:32 pm Post subject: tire wear |
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Well,
the last time I made a suggestion on this topic it took about two weeks for
the flaming to stop.
But they wear primarily for three reasons.
Camber, the tire isn't vertically straight
Toe, the tire isn't pointed straight ahead and aft, parallel to the AC
centerline.
Big foot, the brakes are on during take offs, landings and taxi operations
Sans a big foot, toe will wear the tires rapidly if more than one deg.
Test is to rub across the grooves with a finger, if feathered and sharp on
one side of groove and rounded on the other side of groove then side
scrubbing is happening. Direction of scrubbing is from feather edge towards
rounded edge.
Fix is to rotate gear in socket for tapered rod type, the others can be
shimmed at stub axel. Because of aft rake of tapered rod gear rotating in
socket will change both camber and toe. But fixing toe is most important as
it scrubs tire on one side usually, rather than wearing it at a camber
angle.
Since most wear comes from ground ops set toe with AC in that attitude and
common weight. As well most landing are close to three point landings
anyways.
Project line of sight off wheel rim 100 inches out and measure to centerline
close to wheel and at 100 inches. Both should be same.
At 100 inches out one degree = 1.75 inches roughly so get fore and aft tire
parallelism with centerline inside of that value.
Camber - not much you can do about it on an RV as weight changes too much,
too often. Get 'em both the same if you have the stub axel design (-
I generally get about 350-400 hours out of a set of tires if I don't pop 'em
on those damm goat head thorns and rotate 'em once.
W
And PS, leak stop tubes rock.
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