Wheelpants vs. 8.00 tires and naked

How to keep the Cessna 170 flying and airworthy.

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blueldr
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Post by blueldr »

That N9125 sure is a beautiful airplane. The owner should be very proud.

But Geeze, the wing sure is flat, isn't it?
BL
iowa
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Post by iowa »

this has probably been in a prior post,
but what does it take to convert to these bigger tires?
thanks
iowa
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1951 170A 1468D SN 20051
1942 L-4B 2764C USAAC 43-572 (9433)
AME #17747
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GAHorn
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Post by GAHorn »

iowa wrote:this has probably been in a prior post,
but what does it take to convert to these bigger tires?
thanks
iowa
The Type certificate approves three different tire sizes on the original wheels: 6.00 X 6 (4 ply), 7.00 X 6 (4 ply), 8.00 X 6 (4 ply). So as the pilot/owner you may simply change them out amongst these three choices.

(Chances are tho'...you do not have original Goodyear wheels. heh-heh.) :twisted:
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
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Bruce Fenstermacher
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Post by Bruce Fenstermacher »

6:00, 7:00 and 8:00 series tires are on the type certificate so it's a maintenance item that the owner pilot can perform.

As you might have read some folks have brake clearance issues with 8:00 tires. I've had 2 different types of 8:00 tires on my plane with no problems. If you have a clearance problem that needs modification you r moving out of the owner pilot maintenance category.

Any size tires other than I listed such as 8:50 tires would require some sort of approval.
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Bruce Fenstermacher
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Post by Bruce Fenstermacher »

George we need to stop typing the same thing at the same time. :D
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GAHorn
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Post by GAHorn »

I was two minutes ahead of you. (You got "loquacious".) :lol:
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
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N1478D
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Post by N1478D »

blueldr wrote:That N9125 sure is a beautiful airplane. The owner should be very proud.

But Geeze, the wing sure is flat, isn't it?
That's a classic STRAIGHT wing Dick! :lol:

Also, that wing is for pilots who have the ability to land in short places with small flaps. All others should restrict themesevles to the B model with the bent wings.
Joe
51 C170A
Grand Prairie, TX
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GAHorn
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Post by GAHorn »

N1478D wrote:
blueldr wrote:That N9125 sure is a beautiful airplane. The owner should be very proud.

But Geeze, the wing sure is flat, isn't it?
That's a classic STRAIGHT wing Dick! :lol:

Also, that wing is for pilots who have the ability to land in short places with small flaps. All others should restrict themesevles to the B model with the bent wings.
Joe, Joe, Joe.... :roll:
Would've thought you'dve learned by now....

http://home.comcast.net/~bfenster/ShortLandingChamp.wmv
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
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Bruce Fenstermacher
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Post by Bruce Fenstermacher »

Hey George I had to upload that clip again as I'd removed it to make room for other stuff.

Sure was cool looking at it again though. Just so happens I did one just as short today but I cheated with a 13 gust to 19 knot head wind 20 degrees off runway heading.
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iowa
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Post by iowa »

george
when you say change them out
does this mean that the rubber
fits on the same rim,
or the 8" rims fit on the same axle?
iowa
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1951 170A 1468D SN 20051
1942 L-4B 2764C USAAC 43-572 (9433)
AME #17747
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GAHorn
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Post by GAHorn »

8.00 X 6 tires fit on the same wheels as 6.00 X 6 tires. The last "6" is the inner diameter of the tire at the bead.
'53 B-model N146YS SN:25713
50th Anniversary of Flight Model. Winner-Best Original 170B, 100th Anniversary of Flight Convention.
An originality nut (mostly) for the right reasons. ;)
iowa
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Post by iowa »

you can see that i am profoundly ignorant about certain things!
but i think i follow you.
so the 8" have the same ID but the OD is much bigger!
are the 8" tires wider?
dave
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1951 170A 1468D SN 20051
1942 L-4B 2764C USAAC 43-572 (9433)
AME #17747
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170C
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Changing Tires

Post by 170C »

Gotta ask this "splitting hair" question :roll: Most all of us (those of us w/o A&P license) have replaced tires on our planes, cleaned, inspected & repacked the wheel bearings & reinstalled the tire/wheel combination. While I think it is within the rules for owners to do so (without AI approval), isn't it an unapproved act to remove the brake pad on the outer side of the disk which allows the tire/wheel to be removed? Seems I read somewhere that anything to do with the brakes required a signoff of an AI & removing the outer pad is monkeying with the brakes. Sure would be a b---- to deflate the tire, remove the bolts. & mount a new tire & tube with the wheel still on the axel :?
OLE POKEY
170C
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jrenwick
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Post by jrenwick »

FAR part 43, appendix A (c) defines preventive maintenace, which includes "(1) removal, installation, and repair of landing gear tires," and "provided it does not involve complex assemly operations."

As long as removing the stationary brake pads is not a "complex assembly operation," an owner/pilot is allowed to perform the work and log it.

That's the way I read the FARs, anyway.
John Renwick
Minneapolis, MN
Former owner, '55 C-170B, N4401B
'42 J-3 Cub, N62088
'50 Swift GC-1B, N2431B, Oshkosh 2009 Outstanding Swift Award, 2016 Best Continuously Maintained Swift
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170C
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Owner Maintenence

Post by 170C »

Thanks John.
OLE POKEY
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