• There seems to be an uptick in Political comments in recent months. Those of us who are long time members of the site know that Political and Religious content has been banned for years. Nothing has changed. Please leave all political and religious comments out of the forums.

    If you recently joined the forums you were not presented with this restriction in the terms of service. This was due to a conversion error when we went from vBulletin to Xenforo. We have updated our terms of service to reflect these corrections.

    Please note any post refering to a politician will be considered political even if it is intended to be humor. Our experience is these topics have a way of dividing the forums and causing deep resentment among members. It is a poison to the community. We appreciate compliance with the rules.

    The Staff of SOH

  • Server side Maintenance is done. We still have an update to the forum software to run but that one will have to wait for a better time.

Tire Outside Diameter Question; Tim Conrad?

Lionheart

SOH-CM-2014
Hey all,

Tim, I know you are an Aircraft and Powerplant technician. I thought you might know this one.

What is the outside diameter of a tire for say a Lancair ES or Cirrus? (I am assuming they use the same size tires).


Bill
 
Bill, take a look at this site http://www.goodyearaviation.com/

Apparently Lancair's came with optional Goodyear Flight Custom II tyres in 15x6.0-6 size

This is upgrades to a higher quality tire than the standard tire that is included with kit. These are Goodyear Aviation tires model Flight Custom II. The tire size is 15x6.0-6. Tubes are also included with these tires. Details on the Flight Custom II do not seem to be as readily available as for the newer Flight Custom III tires. The Flight Custom II is a 6 ply tire. It is rated for a rated speed of 160 mph. They are rated for a 1,950 lb load. They have a maximum inflation pressure of 68 psi.
from http://www.lancair-es.com/CH00/Options.html
 
Thanks guys.

:d

I checked the radius on the Cessna in FS and its at 12 inches. The ES is a large bird, so I think thats about right. (Maybe not as heavy as a 172, but certainly bigger).


Bill
 
OMG, what's that I hear? A lionheart Lancair? That would be outstanding. :bump:

Nope.. lol.. I dont think they actually wanted me to make theirs. I am doing my own design. Its a 4 place that looks similar to a Lancair ES, Cirrus, and with wings like a Diamond.

Bill
 
I can always measure one. The most common tire on the everyday 172, or 182 is 6.00x6, with 5.00x5 on the nose.
Bonanzas use 7.00x6, with 6.00x6. for the nose. Something like a Cessna 340 or 414 will have, like, 10.5x6 on the mains.
The C-5 Galaxy uses 20x OMG! And lots of them!
Several planes use the 15x6.00 tires due to space limits. The wells of a TR-182, or the fairings on a Cirrus are close quarters. So a smaller, higher pressure tire is used. Too close on the Cirrus, no airflow around the brakes, therefore chronic brake problems.:isadizzy:
P.S. Inner tubes are still used.
 
I can always measure one. The most common tire on the everyday 172, or 182 is 6.00x6, with 5.00x5 on the nose.
Bonanzas use 7.00x6, with 6.00x6. for the nose. Something like a Cessna 340 or 414 will have, like, 10.5x6 on the mains.
The C-5 Galaxy uses 20x OMG! And lots of them!
Several planes use the 15x6.00 tires due to space limits. The wells of a TR-182, or the fairings on a Cirrus are close quarters. So a smaller, higher pressure tire is used. Too close on the Cirrus, no airflow around the brakes, therefore chronic brake problems.:isadizzy:
P.S. Inner tubes are still used.

Thanks Tim. I knew you would know the exacts. I'll copy/paste this to TXT and save it for reference.



Bill
 
LH,
Made measurements on C-172 main tire.
17.5" diameter, with a 7.5" rim diameter, and about 6-7" wide. Tire was inflated to 30LBS.
 
Back
Top