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Airframe Ideas

8 inch tires
Author Last Post
David,

I think you’d be fine.  The load rating below is from their website.  Keep in mind the load rating is PER TIRE.  

To be 100% sure, I’d go weigh your airplane at gross and see how much weight is on each main.  

Mine weighed 1975 lbs with 38 gallons of gas on board and the weight was distributed about 870 pounds per tire.  

What is the tire pressure for these tires Aero Classic Smooth Tundra FAA TSO 850-6 4 ply tires?  
Load rating is 1600 lbs @ 20 psi. Max speed is 120 mph.

Paul Brown

On Feb 1, 2018, at 15:07 , David Rabazzi (david.rabazzi@gmail.com) <mailer@mail2.clubexpress.com> wrote:


Does anyone run the smooth 4-ply Dessers on later model 180s? Everyone I know with the Desser's has a 180 with a gross weight of 2550. I'm wondering if they might be a little too squishy to operate off pavement regularly for my H model (2800# gross). 

Another option is to run Goodyear smooth recaps. The drawback is they're roughly 20lb each. 

 
Jean-Pierre,

To be quiet honest, since you’ve indicated you don’t work your airplane hard, it’s simply a matter of personal preference.  I can’t stand to see my airplane on anything less than 8.50x10s.  I also prefer women with larger than A-cup breasts.  That’s just me.

If you’re on pavement or dirt either one will work just fine.  The taller 8.50 will provide more insurance if you hit a gopher hole.  Keep in mind it’s MUCH more expensive to install larger tires after the gearbox is ripped out.

No one makes any shaved tires other than Desser.  The Desser Aero Classics are also the only smooth tires.

Good luck.
Paul Brown



On Feb 1, 2018, at 20:46 , Jean-Pierre Held (n180v@icloud.com) <mailer@mail2.clubexpress.com> wrote:

Thank you for the great info. I am going to install the 199-62 kit. As far as tires are concerned I am still debating about the 8.00 or the 8.5 size. Its not much difference, only 1' in diameter. Is there really an advantage to have 8.5 vs 8.0? Does anyone make a shaved tire for the 6' wheel? I also would like to add that I am replacing the 8' tailwheel with 10' one from Landing Gear Works.

 
Thank you for the great info. I am going to install the 199-62 kit. As far as tires are concerned I am still debating about the 8.00 or the 8.5 size. Its not much difference, only 1' in diameter. Is there really an advantage to have 8.5 vs 8.0? Does anyone make a shaved tire for the 6' wheel? I also would like to add that I am replacing the 8' tailwheel with 10' one from Landing Gear Works.
 

Does anyone run the smooth 4-ply Dessers on later model 180s? Everyone I know with the Desser's has a 180 with a gross weight of 2550. I'm wondering if they might be a little too squishy to operate off pavement regularly for my H model (2800# gross). 

Another option is to run Goodyear smooth recaps. The drawback is they're roughly 20lb each. 
 
Yes - every tire mentioned in these emails with the exception of the 8.50x10 (10” diameter wheel) and 29x11x10 (10” wheel) are compatible with all 6” wheels. 

The 199-62 kit has a slightly offset brake caliper for running larger tires including Bushwheels.  It’s the gold standard for replacing the McCauley three piece wheels. I would personally recommend the ones from Alaska Bushwheel as they are all aluminum and great quality.

You have two options - 199-62 is the 3-bolt wheel and 199-62A is the six bolt wheel.  I’m guessing that since you’re on 6.00x6s you don’t use the airplane aggressively. If that’s so, the three piece wheel 199-62 would be fine. If you were working the airplane hard I’d recommend the six bolt. 



Desser also makes a smooth 8.00x6. Since the 8.00s are on your type certificate it would NOT require an STC. 

https://www.desser.com/Aircraft-Tires-and-Tubes/8.00-SC-6-PLY-AERO-CLASSIC-SMOOTH-AIRCRAFT-TIRE-AERO-CLASS.asp

As stated by the previous gentlemen, if you decide to go with the Desser 8.50x6s you’ll need the 8.50x6 STC which the club owns. This allows you to run 8.50x6 tires on the 6” wheels. 

This is what the Desser Aero Classic smooth 8.50x6s look like on a 180. 

image1.png

Paul Brown

Sent from my iPhone

On Jan 31, 2018, at 09:50, Jean-Pierre Held (n180v@icloud.com) <mailer@mail2.clubexpress.com> wrote:

I have never thought about the tire grooving trapping rocks allowing them to be slung out. Very good point. Now for the 8.5 x6 Desser tire, is it compatible with the Cleveland 199-62 kit? In the kit description it mentions only 8.0 size?
JP
 
I have never thought about the tire grooving trapping rocks allowing them to be slung out. Very good point. Now for the 8.5 x6 Desser tire, is it compatible with the Cleveland 199-62 kit? In the kit description it mentions only 8.0 size?
JP
 
Don’t forget the 8.50x10s or shaved 29x11x10s. Both are STCd but require a 10” wheel either via Schneider/Gar Aero adapters or one piece ABI wheels. 

I feel the 8.50x10 is the best overall tire for my use but unfortunately no one makes a smooth or shaved one to remove the grooves. Desser only makes a shaved 29x11x10. I’ve been unsuccessfully lobbying them to make a smooth 8.50x10 for the last six months. 

For your stated usage, I’d look hard at the new Desser 8.50x6 smoothie. Best combo. 


Paul Brown

Sent from my iPhone

On Jan 30, 2018, at 16:14, Derek N Priebe (dpriebe@priebeortho.com) <mailer@mail2.clubexpress.com> wrote:

For gravel and/or off-airport, 8.0 or 8.50s (STC) good, 26" Goodyears better (FA), 29" ABW (STC) best. The grooves in the tread are causing damage (they can even sling gravel into the prop), so select a tire without grooves; also consider abrasion boots on horizontal. You don't need 6 bolt wheels (although would recommend a 6 bolt for 29" ABWs)
Airspeed 6" to 8" ?    Nil
Regards,
Derek Priebe
Anchorage , AK
 
For gravel and/or off-airport, 8.0 or 8.50s (STC) good, 26" Goodyears better (FA), 29" ABW (STC) best. The grooves in the tread are causing damage (they can even sling gravel into the prop), so select a tire without grooves; also consider abrasion boots on horizontal. You don't need 6 bolt wheels (although would recommend a 6 bolt for 29" ABWs)
Airspeed 6" to 8" ?    Nil
Regards,
Derek Priebe
Anchorage , AK
 
I am debating about switching from 6' to 8' tires on my 180J.  I would have to change my Cleveland 199-60 to a 199-62 system which is not inexpensive. My flying profile is mostly paved but I am also going into gravel/dirt strip for fun here in New Mexico. I have had bad problems with rock damage on my horizontal stab which were in need of repair. I don't know if slightly bigger tires will make a difference? Do the rocks get projected by the tires or the prop wash? I have a three blade Hartzell prop. Is it an overkill to to go from 6 to 8 inch considering the expense? What impact would this have on airspeed. I appreciate any comment on this.
 
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