Goodyear's 856T61-1 8.50-6 6PR Aircraft Rib tire can be used as either tubeless, or interchangeably in tube-type applications (with tubes).

Unique cord body shape
Helps reduce stress as the tire cycles from tension to compression

Tough casing design
Performs in a wide range of operating conditions

Specially compounded tread design and large contact area
Versatility for many runway types
 
Supplied with FAA form.