Tailwheel - Tire and Tube Size

Ask Questions and Offer Advice Related to the Cessna 120 & 140 Type
Forum rules
You must be a member of the Cessna 120-140 Association in order to post new topics, reply to existing topics, or search for information on this forum. Use the "Join" link in the red menu bar.
User avatar
7896
Posts: 36
Joined: Tue May 01, 2018 7:00 am
Name: Michael Haas
Location: Richmond, Va
Aircraft Type: Cessna 120
Occupation-Interests: Mechanical Engineer
Contact:

Tailwheel - Tire and Tube Size

Post by 7896 »

Hello,

I need help identifying the tire and tube size for my tail-wheel. Does this configuration look familiar to anyone?

The attachment IMG_6391.JPG is no longer available
IMG_6386.JPG
IMG_6386.JPG (261.05 KiB) Viewed 7218 times
The attachment IMG_6386.JPG is no longer available
Thanks for the help!
Michael Haas
'46 120 - N76219
Home Base: W96 (Quinton, VA)
User avatar
7896
Posts: 36
Joined: Tue May 01, 2018 7:00 am
Name: Michael Haas
Location: Richmond, Va
Aircraft Type: Cessna 120
Occupation-Interests: Mechanical Engineer
Contact:

Re: Tailwheel - Tire and Tube Size

Post by 7896 »

IMG_6391.JPG
IMG_6391.JPG (232.58 KiB) Viewed 7216 times
Michael Haas
'46 120 - N76219
Home Base: W96 (Quinton, VA)
User avatar
7896
Posts: 36
Joined: Tue May 01, 2018 7:00 am
Name: Michael Haas
Location: Richmond, Va
Aircraft Type: Cessna 120
Occupation-Interests: Mechanical Engineer
Contact:

Re: Tailwheel - Tire and Tube Size

Post by 7896 »

IMG_6392.JPG
IMG_6392.JPG (278.93 KiB) Viewed 7216 times
Michael Haas
'46 120 - N76219
Home Base: W96 (Quinton, VA)
User avatar
6643
Posts: 2444
Joined: Tue May 01, 2018 7:00 am
Name: John C
Location: KLCI, NH
Aircraft Type: 1946 C140/C90
Occupation-Interests: A&P, semi-retired
Contact:

Re: Tailwheel - Tire and Tube Size

Post by 6643 »

It's an old Maule tailwheel. If it takes a pneumatic tire, it's going to be a 2.80/2.50-4. Except, the hub doesn't look right... (And, it sure doesn't look like it's 4"!)

The pneumatic wheel is a split rim, like the Scott 3200. The solid tailwheel doesn't really have a hub. I'm guessing someone fitted an industrial wheel and tire at some point.
4004
Posts: 243
Joined: Tue May 01, 2018 7:00 am
Name: Edd
Location: KFGU TN
Aircraft Type: 140
Occupation-Interests: Retired
Contact:

Re: Tailwheel - Tire and Tube Size

Post by 4004 »

Do a search on "Stomil Wersja" - looks like polish company - search hit talks about tail wheel tires used on Cessna 195 and Stearman, etc. Also a company with phone number. Agree with John C, old Maule and I may have one. Look closely you may find a metric size on the side- also, does the hub have a hole for a tube valve stem. Happy hunting!!

Big Edd
Last edited by 4004 on Mon Jul 02, 2018 4:52 pm, edited 1 time in total.
4004
Posts: 243
Joined: Tue May 01, 2018 7:00 am
Name: Edd
Location: KFGU TN
Aircraft Type: 140
Occupation-Interests: Retired
Contact:

Re: Tailwheel - Tire and Tube Size

Post by 4004 »

I just remembered I have an old antique tire in the basement. Looks like yours, tire is a Goodyear 8.00 SC 6 ply rating nylon, with the ring and snap ring as in your photo. Tube type with valve stem broke off but still visible. Tire has no tread, rounded similar to the old Cub tires that decades ago, we called "balloon tires". Possibly came off a Stearman.


I'll try to take apart later today since it's 4 AM. Bet the 8.00 SC will cross reference.


Big Edd
4004
Posts: 243
Joined: Tue May 01, 2018 7:00 am
Name: Edd
Location: KFGU TN
Aircraft Type: 140
Occupation-Interests: Retired
Contact:

Re: Tailwheel - Tire and Tube Size

Post by 4004 »

I took mine apart (mostly) and nominal dimensions are: hub inner metal flange 3 5/8", outer metal retainer ring 3 5/8", axle shaft 1", tire inner diameter bead to bead 2 5/8".
Tire Goodyear Type 1 8.00 SC, inner tube Goodyear Type 1 8.00.
If you look on the left sidewall (you photo) of your tire with lens, you'll see "WERSJA" which leads one to "Stomil" in Poland. Further, "Wings and Wheels" in Ontario, Canada who probably is a dealer with phone # on web page. May be best bet price just to replace yours.
Desser Tire list the 8.00 for $195, and the right size tube for only $17.46.

My hub looks like it has the bearing races but no bearings (didn't clean up). My setup is ancient but has been in conditioned dark basement for probably 40 years, so if "your back is against the wall" and your interested, I can make a "Trump deal", like pay the shipping, and its yours. The tire doesn't look worn per se and with the rounded configuration, no side wall showing dry rot/weather checking. As mentioned the valve stem is broken off but probably a servicing tire shop could vulcanize a new stem. Tube rubber is heavy and looks and feels good. Might be worth a try. EDIT: Get new tube from Desser for $17.46

If interested and want to discuss, you may call me tonite after 8PM or most evenings after 7 PM and I'm up til late, late.

Big Edd
Hixson (Chattanooga) TN
423-875-4474


I
Last edited by 4004 on Sun Jul 01, 2018 3:01 pm, edited 1 time in total.
User avatar
6643
Posts: 2444
Joined: Tue May 01, 2018 7:00 am
Name: John C
Location: KLCI, NH
Aircraft Type: 1946 C140/C90
Occupation-Interests: A&P, semi-retired
Contact:

Re: Tailwheel - Tire and Tube Size

Post by 6643 »

Maybe a call to Maule is in order...
4004
Posts: 243
Joined: Tue May 01, 2018 7:00 am
Name: Edd
Location: KFGU TN
Aircraft Type: 140
Occupation-Interests: Retired
Contact:

Re: Tailwheel - Tire and Tube Size

Post by 4004 »

Been doing some more research. In listing the 8.00 tire, Desser list the associated tube size, since they always recommend new tube with new tire. Then backing up from the tube size, one finds an Aero Classic ( their brand) tire DTR 1430 210-65 (250-3) 4 ply ribbed tire for only $32.41 - which certainly sounds like a tail wheel price. Note it is a 4 ply not 4 ply rating whereas my Goodyear says 6 ply rating, meaning probably only has 4 ply similar to the auto side wall ratings. The DTR1430 may be a "softer" tire and more appropriate for 120/140 viz-a-viz a Stearman or Cessna 190/195.

They consider the 8.00 a "specialty" tire e.g. big price for the "purist" wanting the original look on their antique/classic - low production, etc.

Of course my logic may be all wrong, suggest you call Desser 800-247-8473 and see if their Aero Classic DTR 1430 possibly is a replacement for the 8.00 SC. 2C (Possibly worth 4C) :D

Big Edd
User avatar
7896
Posts: 36
Joined: Tue May 01, 2018 7:00 am
Name: Michael Haas
Location: Richmond, Va
Aircraft Type: Cessna 120
Occupation-Interests: Mechanical Engineer
Contact:

Re: Tailwheel - Tire and Tube Size

Post by 7896 »

Thanks for all the input. The tire/tube are back on the plane, and working for the moment, so it's not a crisis situation. Whew!!

Blue Skies,
Michael Haas
'46 120 - N76219
Home Base: W96 (Quinton, VA)
Post Reply