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  #1  
Old 01-09-2018, 09:54 PM
airguy's Avatar
airguy airguy is offline
 
Join Date: Oct 2006
Location: Garden City, Tx
Posts: 5,593
Default Flat tire on landing - a little western...

So I went goofing off today with my uncle, just a chance to burn some fuel and recalibrate my head. 0.7 on the hobbs and the sun is going down, time to park it. As soon as the mains touched down on the 30-foot wide pavement I noticed it pulling right, within less than a second it was pulling right A LOT and I knew what was happening. Full left rudder was OK through about 40 knots then left brake and more left brake, to the point I was almost sliding the left wheel coming down through about 10 knots but kept it on the runway. It was swervy to say the least, but I kept it on the pavement.

Pulled the wheelpant, the tube would hold air for about 3 minutes so we just aired it up and used our Rhino tug to pull it back to the hangar, took 2 mid-way stops for more air to get it put away. Datalogs showed it was 14 seconds from wheel contact to full stop, that would have been a rather impressive short-field landing if I hadn't been so busy trying to suck the seat cushion up my butt. My condition inspection was due to start in 2 weeks, I guess this just moved the start point up a bit.

Be careful out there...
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Greg Niehues - SEL, IFR, Repairman Cert.
Garden City, TX VAF 2021 dues paid
N16GN flying 900 hrs and counting; IO360, SDS, WWRV200, Dynon HDX, IFD440, G5
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.
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  #2  
Old 01-09-2018, 10:27 PM
rockwoodrv9 rockwoodrv9 is offline
 
Join Date: Dec 2011
Location: Meridian ID, Aspen CO, Okemos MI
Posts: 2,863
Default

Ha! I had to call my wife over to read your comment. She laughed too! Good job keeping it in the pavement.

Im getting close to flying too!
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Williamston MI
O-320 D2A
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  #3  
Old 01-10-2018, 07:52 AM
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flightlogic flightlogic is offline
 
Join Date: Nov 2013
Location: Prescott, AZ
Posts: 1,674
Default A dolly and some good luck

My flat in the 9A was similarly exciting. It occurred to me afterward that I had never mentally practiced for the wild ride in an RV with a main gone. Pure gut reaction and some good luck kept me on pavement. After a good Samaritan showed up with a wheel dolly, two other pilots simply got under the wing and we all lifted it, to place the dolly. I later went to Harbor Freight to get my own wheel dolly. I might just be able to help another pilot some day.
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  #4  
Old 01-10-2018, 07:56 AM
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DanH DanH is offline
 
Join Date: Oct 2005
Location: 08A
Posts: 10,354
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Your usual tire pressure?
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RV-8 SS
Barrett IO-390
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  #5  
Old 01-10-2018, 08:38 AM
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airguy airguy is offline
 
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Location: Garden City, Tx
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Quote:
Originally Posted by DanH View Post
Your usual tire pressure?
I usually run 35 pounds. I visually inspect the tires before every flight, and it taxied just fine, I'm guessing I finally wore a hole in the tube somewhere during the takeoff roll and it bled down in flight.
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Greg Niehues - SEL, IFR, Repairman Cert.
Garden City, TX VAF 2021 dues paid
N16GN flying 900 hrs and counting; IO360, SDS, WWRV200, Dynon HDX, IFD440, G5
Built an off-plan RV9A with too much fuel and too much HP. Should drop dead any minute now.
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  #6  
Old 01-10-2018, 06:34 PM
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Tankerpilot75 Tankerpilot75 is offline
 
Join Date: Jan 2015
Location: Oklahoma City, OK
Posts: 683
Default A little different experience

About a year and a half ago I experienced the opposite tire failure. I did my normal preflight with everything looking normal and a friend and I climbed into the RV then taxied. Taxi seemed slow but nothing truly unusual to either of us. (He was an experienced RV6 owner and Flight instructor.). After engine run up we taxied to the runway and applied power. It started to strongly move to the left. I pulled power and decided to taxi back to the hanger. Guess what! It wouldn?t taxi without pulling hard to the left. We shut down on the runway and got out to check things out. The left tire was completely flat and the bird wasn?t going anywhere without getting weight off the wheel. Low tire pressure resulted in a complete loss of pressure when I turned left cutting the valve stem.

My home airport is a rural, uncontrolled environment but letting it sit on the runway while I got help was real disconcerting. Using a wheel dolly a neighbor had from Harbor Freight and jacking up the left side of the airplane to place the dolly underneath and securing it to the dolly took time. Then it was a slow tow back to the hanger.

Now I check tire pressures when temperatures change in the fall, winter and spring. If my pressures are below 40 psi I add air to bring them to 40 psi. Checking pressures ?at least? three times a year is my personal minimum no matter how they look. What is the rule of thumb ?every 10 degrees equal 1.6 psi change.? Every time I ?ve checked pressures I?ve had to add air. In my case that takes about an hour and a half. That?s still faster than having to get it off the runway the hard way!
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Jim Harris, ATP, T38, EC/KC-135A/E/R, 2008 RV7A, 2nd owner, N523RM (2015)
Superior XPIO-360, Hartzel CS prop, Dual GRT Horizon EX with ARINC, EIS, Garmin 340, 335 w/WAAS gps, Dual 430s (non-WAAS), TruTrak 385 A/P with auto-level & auto-trim, Tosten 6 button Military Grips, FlightBox wired to EX, Dynon D10A w/battery backup, 406 MHz ELT. Custom Interior, New TS Flightline hoses, Great POH!
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  #7  
Old 01-11-2018, 01:33 AM
Jim Frisbie Jim Frisbie is offline
 
Join Date: Jan 2016
Location: Canby
Posts: 47
Default Tire pressure

I agree on checking 3 times a year
I also take my wheels to my friendly Costco tire bay and have them fill them
With nitrogen during my annual.
It greatly reduces the subsequent need to add air
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  #8  
Old 01-11-2018, 07:49 AM
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AndyRV7 AndyRV7 is offline
 
Join Date: Sep 2007
Location: Hudson County, NJ
Posts: 1,092
Default

Quote:
Originally Posted by flightlogic View Post
I later went to Harbor Freight to get my own wheel dolly.
That's how I got back to my hangar with my 1st flat. I hope never to have to use them again! Oddly enough, that was the only flat I had that the tube would not hold enough air to even partially inflate the flat. What a character builder.
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  #9  
Old 01-11-2018, 05:43 PM
slngsht slngsht is offline
 
Join Date: May 2016
Location: Purcellville, VA
Posts: 286
Default

Anybody thought about putting TPS on?
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  #10  
Old 01-12-2018, 08:24 AM
Michael Henning Michael Henning is offline
 
Join Date: Jun 2011
Location: Nashua, NH
Posts: 546
Default

Put baby powder inside of tire before installing tube. Also, inflate and deflate a few times to make sure tube is not kinked. I had a flat twice (no baby powder), once just after run-up, and once when I shut it down in front of hangar. Either way you slice, it?s a pain in the arse.
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