Sudden Flat Tire

...still amazed that my car has run flat tires, but planes don't. More
60's technology flying around. Astonishing.

Several reasons:
Certification costs.
You need the tires to give and flex on landing. Cars do not need this
since the do not land.
Large airplanes have dial tires per gear. Redundancy.
Michelle

Skylune wrote:

..still amazed that my car has run flat tires, but planes don't. More
60's technology flying around. Astonishing.

"Skylune" wrote in message
lkaboutaviation.com...
..still amazed that my car has run flat tires, but planes don't. More
60's technology flying around. Astonishing.


What's the speed rating on your run-flat car tires? How often do they need
to go from a dead stop instantly to 60 mph or higher? Do you have any idea
what it takes to get a new aircraft product certified in terms of money and
time?

"Kevin Kubiak" wrote:

FBO sends a truck to fill the tire, but the air rushed out almost as fast
as it
entered.

You would've taken off if it had held air?

Dan Luke wrote:

"Kevin Kubiak" wrote:


FBO sends a truck to fill the tire, but the air rushed out almost as fast
as it
entered.


You would've taken off if it had held air?


I didn't say or imply I would have taken off if it held air. I would have
taxied back to the FBO to have it checked out and saved the extra towing charge
however and the tie up of the far end of the runway. DBQ was pretty busy at the
time.

Kevin Kubiak PP-ASEL

Good Year quality product, like on Nascar which keep failing with a
new 'softer' compound, you've seen pictures.

Bush

On Thu, 13 Oct 2005 12:54:18 -0500, Kevin Kubiak
wrote:

Strange thing happened to me earlier this week (monday).
I flew from home base at KUGN to KDBQ with a friend
for a quick stop and then we were planning to fly up the Mississippi
to look for some fall colors.

Had a nice clear day with light winds. So we land at DBQ, I taxi over to the
FBO for a quick pit stop. Got back in the plane, got ATIS, contacted ground and
given taxi instruction to 36. So I'm # 2 in line, just finish mag check and
now I'm # 1. Start to move forward and seemed like the pedals were hare to
steer. I quickly think I got a flat nosewheel, and shut down the engine, worried
that I might strike the prop. Anyway, contact ground told them on problem and
plane behind me says yep it is flat.

FBO sends a truck to fill the tire, but the air rushed out almost as fast as it
entered. SO we now need a tow back to FBO. 2.5 hrs later I have new tire and
tube and we are off back to KUGN. Luckily I take the old tire & tube back.
Since the plane is owned by the club I'm a member in.

The general manager said I will be reimbursed for the repair, but was curious
about the flat. I was too since the tire looked to be relatively new.
In fact it was only replaced 2 weeks prior. The problem apparently was that
some of the steel cord must have popped up through the tires sidewall and
punctured the tub. If you rub your hand over the inside you can feel the steel
wire protruding through the sidewall.

Does this kind of thing happen frequently. Did I over react by shutting down
the engine, but I was really did not want to add a prop strike
to ruin my day?

Could side load or bad landings, bouncing on the nose cause such a failure?
My landing just prior to the this occurring was fine, mains first, then slowly
down on the nose. Just curious. Also, what would happen if the tire went flat
during flight? I guess I would know the minute the nose settled on the runway.
If that happened, all I could do is hold the nose off by pulling back on the yolk.

Kevin Kubiak PP-ASEL

"Kevin Kubiak" wrote in message The problem apparently was that
some of the steel cord must have popped up through the tires sidewall and
punctured the tub. If you rub your hand over the inside you can feel the
steel
wire protruding through the sidewall. Does this kind of thing happen
frequently.

It doesn't happen frequently, but it does happen. I learned the hard way
that replacing the valve stem along with the tube is cheap insurance. I also
learned that many flats are the result of the tube being folded back on
itself during installation, causing a pinch or a crease in the tube which
quickly rubs a hole.

Did I over react by shutting down
the engine, but I was really did not want to add a prop strike
to ruin my day?

You did the right thing. Taxiing with a flat tire can cause a lot of damage.
No sense in adding unneccessary risk.

Also, what would happen if the tire went flat
during flight? I guess I would know the minute the nose settled on the
runway.
If that happened, all I could do is hold the nose off by pulling back on
the yolk.

Landing with a flat can cause problems because of the severe vibrations. I
landed a C-337 with a flat main tire. It was controllable throughout but the
vibrations were so bad that the brake pads departed the gear. A Cessna 400
series won't taxi at slow speeds with a flat nose tire. The tire just cocks
to the side and that's the end.

D.

Kevin Kubiak wrote:
Strange thing happened to me earlier this week (monday).
I flew from home base at KUGN to KDBQ with a friend
for a quick stop and then we were planning to fly up the Mississippi
to look for some fall colors.

Had a nice clear day with light winds. So we land at DBQ, I taxi over
to the
FBO for a quick pit stop. Got back in the plane, got ATIS, contacted
ground and
given taxi instruction to 36. So I'm # 2 in line, just finish mag check
and
now I'm # 1. Start to move forward and seemed like the pedals were hare
to steer. I quickly think I got a flat nosewheel, and shut down the
engine, worried
that I might strike the prop. Anyway, contact ground told them on
problem and plane behind me says yep it is flat.

FBO sends a truck to fill the tire, but the air rushed out almost as
fast as it
entered. SO we now need a tow back to FBO. 2.5 hrs later I have new
tire and tube and we are off back to KUGN. Luckily I take the old tire
& tube back. Since the plane is owned by the club I'm a member in.

The general manager said I will be reimbursed for the repair, but was
curious about the flat. I was too since the tire looked to be
relatively new.
In fact it was only replaced 2 weeks prior. The problem apparently was
that
some of the steel cord must have popped up through the tires sidewall
and punctured the tub. If you rub your hand over the inside you can
feel the steel
wire protruding through the sidewall.

Does this kind of thing happen frequently. Did I over react by
shutting down the engine, but I was really did not want to add a prop
strike
to ruin my day?

Could side load or bad landings, bouncing on the nose cause such a failure?
My landing just prior to the this occurring was fine, mains first, then
slowly
down on the nose. Just curious. Also, what would happen if the tire
went flat
during flight? I guess I would know the minute the nose settled on the
runway.
If that happened, all I could do is hold the nose off by pulling back on
the yolk.

Kevin Kubiak PP-ASEL
I had the misfortune of having 2 (separate) in-flight flats. The first
was the right main. In pre-flight i saw it was low and added air. After
a 45 min. flight as soon as I touched down the plane pulled hard right
with a pile of vibration. Threw down the right aileron and held it for
the rest of the ride & used all the left brake i had to keep it on the
runway. Tire shredded- wheel "phew" was fine. April 15th,2002 I had just
failed my ppl checkride on lost procedures 2 hours prior. Baaaad day.

The second time was the nosewheel. In pre-flight i told my the co-owner
"I'm going to get us a new tire for that nose, it's starting to look
barefoot". We took off and in the pattern heard a strange noise
"vibration" & decided to land. As soon as the nose touched violent
vibration- pulled all the way back on the yoke - no brakes & rode it
out.tire shredded, again no prop strike or wheel damage. those were in a
warrior. we now have a Cherokee six with new rubber all the way around -
imagine why?
btw -i'm pretty good at changing tires.