Maxwell: Thanks for the idea. I'll look into it.
"Maxwell" wrote in message
...

"Stuart & Kathryn Fields" wrote in message
.. .
I recently tried a pair of Marathon flat free wheelbarrow tires to replace
my pneumatic tires that had developed the habit of slowly leaking out the
air.
@#$%^ The rolling resistance was so great I couldn't move the helicopter
by myself. In fact even with my wife's help it was very hard to get the
helicopter moved on concrete with the flat free tires. Looking at the
contact patch, there was approximately a 3" long contact area. Replacing
the flat free with the pneumatics, I was again able to relatively easily
move the helicopter. Weight of the helicopter was slightly less than the
reported capacity of the flat free tires.
Any suggestions?

Check with an industrial tire service, fork lifts, bobcats, tractors, etc.
The last time I bought tires for my bobcat, they offered me some kind of
"flat free" filling option. I think it was some kind hard rubber, or hard
rubber foam. The did say it was the equivalent of about a 40 psi fill.