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Do Airliners Have Creep Marks?  
User currently offlineJamesbuk From United Kingdom, joined May 2005, 3968 posts, RR: 4
Posted (9 years 2 weeks 6 hours ago) and read 6078 times:

hi guys and gals

i was doing the A check of a Cessna 150 and it got me wondering on commercial jets like 777 A320 etc do the have creep marks on the wheels

thanks guys


You cant have your cake and eat it... What the hells the point in having it then!!!
18 replies: All unread, jump to last
 
User currently offlineSlamClick From United States of America, joined Nov 2003, 10062 posts, RR: 68
Reply 1, posted (9 years 2 weeks 6 hours ago) and read 6065 times:

Yes there is a creep named Mark at just about every airline out there.

The most famous of all though was "Mark Pock" in "Coffee, Tea or Me?"



Happiness is not seeing another trite Ste. Maarten photo all week long.
User currently offlineBernard Shakey From United States of America, joined Oct 2001, 560 posts, RR: 9
Reply 2, posted (9 years 2 weeks 6 hours ago) and read 6064 times:

Unfortunately, they do. In some rural areas of the world, it is very common to see individuals walking across active runways. Occassionally, the inevitable does occur and the mess on the aircraft tires is horrific. Notice the individual third from the left in this picture:
View Large View Medium
Click here for bigger photo!

Photo © Michael Arcellana



This individual has many bad habits and has been generally known as a creep for many years. Just moments after this photo was taken, he was mauled by an A320 - resulting in creep marks on the landing gear. Hope this helps.



Mindless drifter on the road, Carries such an easy load
User currently offlineArmitageShanks From UK - England, joined Dec 2003, 3636 posts, RR: 15
Reply 3, posted (9 years 2 weeks 2 hours ago) and read 5965 times:

What are creep marks?
........


User currently offline320tech From Turks and Caicos Islands, joined May 2004, 491 posts, RR: 5
Reply 4, posted (9 years 2 weeks 1 hour ago) and read 5923 times:

Very amusing, guys. Airliner tires do not generally have creep marks because they don't have inner tubes. Creep marks are lines painted across the junction of the wheel and tire to show if the tire has moved on the wheel. If this happens with a tube tire, it's likely that the tube has folded.


The primary function of the design engineer is to make things difficult for the manufacturer and impossible for the AME.
User currently offlineSlamClick From United States of America, joined Nov 2003, 10062 posts, RR: 68
Reply 5, posted (9 years 1 week 6 days 22 hours ago) and read 5884 times:

What we in the military called slippage marks.

Whole new string of dumb jokes on that one.



Happiness is not seeing another trite Ste. Maarten photo all week long.
User currently offlineAR1300 From Argentina, joined Feb 2005, 1740 posts, RR: 3
Reply 6, posted (9 years 1 week 6 days 22 hours ago) and read 5874 times:

I don't get any of this.Creep marks is a thing on the wheels?on the struts?on the RWY??it means killing someone??uh???


Mike



They don't call us Continental for nothing.
User currently offlineHAWK21M From India, joined Jan 2001, 31702 posts, RR: 56
Reply 7, posted (9 years 1 week 6 days 19 hours ago) and read 5851 times:

Quoting SlamClick (Reply 1):



Quoting Bernard Shakey (Reply 2):


What are you guys talking about.  Smile


Its a paint covering the tire & rim of the Hub to identify any slippage of the tire on the hub which could lead to damage to the Valve stem.

regds
MEL



Think of the brighter side!
User currently offlineTimT From United States of America, joined Jun 2001, 168 posts, RR: 0
Reply 8, posted (9 years 1 week 4 days 2 hours ago) and read 5607 times:

Years ago, TWA international flight crews numbered the wheels according to how many crewmembers there were on board. After landing and parking at the gate, the number that was at 6 o'clock won the pot. Usual amount was $1.00 per crewmember.

User currently offlineHAWK21M From India, joined Jan 2001, 31702 posts, RR: 56
Reply 9, posted (9 years 1 week 4 days ago) and read 5568 times:

Quoting TimT (Reply 8):

Nice Idea  biggrin 
regds
MEL



Think of the brighter side!
User currently offlineJamesbuk From United Kingdom, joined May 2005, 3968 posts, RR: 4
Reply 10, posted (9 years 1 week 3 days 10 hours ago) and read 5500 times:

lol so you could end up getting like $20 xtra at the end of a flight sounds like quite a bit of fun


You cant have your cake and eat it... What the hells the point in having it then!!!
User currently offlineJarheadK5 From United States of America, joined Nov 2005, 216 posts, RR: 1
Reply 11, posted (9 years 1 week 2 days 23 hours ago) and read 5387 times:

Quoting TimT (Reply 8):
flight crews numbered the wheels according to how many crewmembers there were on board. After landing and parking at the gate, the number that was at 6 o'clock won the pot.

We called that "Taxi Roulette", but ours was more like actual roulette that what's described above. The bosses for the brake keys on the inboard half of the nose wheel (same wheel assembly for nose and main wheels on the CH-53E) would be numbered, 1 to 16 IIRC, and we'd each throw in a buck for however many numbers we wanted. Usually 4 crew, 4 numbers each; the lucky one walked from the aircraft $16 richer...

Oh, and on-topic - we had slippage marks on our tires & wheels, and they were tubeless.

[Edited 2005-11-15 06:26:45]


Cleared to Contact
User currently offlineFrancoflier From France, joined Oct 2001, 3809 posts, RR: 11
Reply 12, posted (9 years 5 days 8 hours ago) and read 5204 times:

Quoting 320tech (Reply 4):
Airliner tires do not generally have creep marks because they don't have inner tubes.

I am no mechanic, but wouldn't tire slippage be a problem even on a tubeless tire?

(Loss of brake effectivity, risk of N leakage?)

Rgds,



Looks like I picked the wrong week to quit posting...
User currently offlineKhenleyDIA From Sweden, joined Feb 2005, 427 posts, RR: 0
Reply 13, posted (9 years 5 days 7 hours ago) and read 5190 times:

Quoting JarheadK5 (Reply 11):
Usually 4 crew, 4 numbers each; the lucky one walked from the aircraft $16 richer...

Just imagine what the pot would be on a full A380 during a flight involving a crew change.  Big grin

KhenleyDIA



Why sit at home and do nothing when you can travel the world.
User currently offlineHAWK21M From India, joined Jan 2001, 31702 posts, RR: 56
Reply 14, posted (9 years 4 days 20 hours ago) and read 5134 times:

Quoting Francoflier (Reply 12):
I am no mechanic, but wouldn't tire slippage be a problem even on a tubeless tire?

(Loss of brake effectivity, risk of N leakage?)

A risk of Deflation is present when the Tire slides over the hub.
regds
MEL



Think of the brighter side!
User currently offlineHAWK21M From India, joined Jan 2001, 31702 posts, RR: 56
Reply 15, posted (8 years 9 months 3 weeks 2 days 14 hours ago) and read 4613 times:


Creep mark.
regds
MEL



Think of the brighter side!
User currently offlineKaddyuk From Wallis and Futuna, joined Nov 2001, 4126 posts, RR: 25
Reply 16, posted (8 years 9 months 3 weeks 2 days 7 hours ago) and read 4520 times:

Isn't creep also a form of Metal fatigue and/or corrosion?


Whoever said "laughter is the best medicine" never had Gonorrhea
User currently offlineHAWK21M From India, joined Jan 2001, 31702 posts, RR: 56
Reply 17, posted (8 years 9 months 3 weeks 1 day 22 hours ago) and read 4418 times:

Quoting Kaddyuk (Reply 16):



Isn't creep also a form of Metal fatigue and/or corrosion?

Defination of Creep :- The flow or plastic deformation of metals held for long periods of time at stresses lower than the normal yield strength. The effect is particularly important if the temperature of stressing is above the recrystallization temperature of the metal.

regds
MEL



Think of the brighter side!
User currently offlineKaddyuk From Wallis and Futuna, joined Nov 2001, 4126 posts, RR: 25
Reply 18, posted (8 years 9 months 3 weeks 1 day 14 hours ago) and read 4363 times:

Quoting HAWK21M (Reply 17):
Defination of Creep :- The flow or plastic deformation of metals held for long periods of time at stresses lower than the normal yield strength. The effect is particularly important if the temperature of stressing is above the recrystallization temperature of the metal.

I thought so, when boroscoping the Nozzle Guide Vanes i remember seeing to check for Creep...



Whoever said "laughter is the best medicine" never had Gonorrhea
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