Oh What A Difference...

[622BH]

Just changed out the stock tires for Desser Monsters 5.00-5 and Michelin Air Stop Tubes. Balanced at 40 PSI.
Much better taxi and Take-off / Landing roll than before.

Stock tires limited me to 35 PSI or shimmy ensued. Now at 40 PSI and no hint of shimmy, the airplane will actually taxi at 900 RPM. That's significantly better than the 1200 RPM required previously.

From now on, its Desser & Air Stop for "My Beebe."

[Dugaru]

No more landing shimmy for me, either, after the change. I also run mine at 40 PSI.

Originally Posted by 622BH

Just changed out the stock tires for Desser Monsters 5.00-5 and Michelin Air Stop Tubes. Balanced at 40 PSI.
Much better taxi and Take-off / Landing roll than before.

Stock tires limited me to 35 PSI or shimmy ensued. Now at 40 PSI and no hint of shimmy, the airplane will actually taxi at 900 RPM. That's significantly better than the 1200 RPM required previously.

From now on, its Desser & Air Stop for "My Beebe."

[Steve Melton]

Continental here but the same tread pattern and air stop tubes. I developed some shimmy on the stock tires after 200 hrs and they became cupped on the edges. I added wooden leg dampers and switched to the continental tire. no shimmy after that. 45 psi on the mains and let it sink back to 40 psi. air them about each 6 months or longer. 50 psi on the nose. it will allow you to roll a long way and makes you glad you have brakes. for a normal landing I can roll 3000 ft. I try to keep my brakes in good shape.

a thing I have found to minimize brake usage.... if the taxi way is crowned, like ours at HAO, then taxi slightly off center on the downwind side and it will minimize usage of the brakes. the wind on the vertical stab and the crown are opposing forces. if you are with a CFI then taxi on the centerline.

[622BH]

Are you airing the Lamb tire to 50 PSI?

The taxi tip is a nice trick if there’s a cross wind. My airport has a predominant head/tail-wind right down the taxiway. So the crown and brakes get used a bit more than preferred.

[dreed]

Haven't even flown my 7A yet but am thinking I should do this (have Berringer nose wheel).

Where did you get them? Spruce? Anyone comment on Mich vs. Dresser tires?

[Steve Melton]

Originally Posted by 622BH

Are you airing the Lamb tire to 50 PSI?

The taxi tip is a nice trick if there’s a cross wind. My airport has a predominant head/tail-wind right down the taxiway. So the crown and brakes get used a bit more than preferred.

nose wheel stock Lamb to 50 psi and then let is sink back over time. so far that has been fine for me.

[Steve Melton]

Originally Posted by dreed

Haven't even flown my 7A yet but am thinking I should do this (have Berringer nose wheel).

Where did you get them? Spruce? Anyone comment on Mich vs. Dresser tires?

recommend to use the stock tire because they are good enough to get you going and they will give you a data point. don't spend the money until you want to upgrade.

[dreed]

Thanks! Worth upgrading the tubes initially at least? Out of paint and reassembling now so not a horrible time for me to do it before wings are back on, pants etc. So many horror stories about stock tubes.

[Steve Melton]

Originally Posted by dreed

Thanks! Worth upgrading the tubes initially at least? Out of paint and reassembling now so not a horrible time for me to do it before wings are back on, pants etc. So many horror stories about stock tubes.

perhaps the tubes, then you will not have to air so often. dream machine. it's a bullet!

[bhester]

Stock tires and tubes

Tire: AirHawk 5.00-5 6ply
Tube: Aero Classic Leakguard
Nose Tire: Chang Shin 11x4.00x5 8 ply
Tube: Whatever Vans sends “U-Lamb Tube”

Mains= 45psi Nose= 35psi
Acft hrs 1350