One was for sale on Ebay sometime back, a B707 4 axis, I believe, opening bid $25,000.
Thought about acquiring same as I spent a lotta years on the 'ole 707, but then...where do you put it?
Too big for most garages', have to build a whole new building..then the property taxes go up.
Still, would be worthwhile, so that Airboos pilots would know how flying
used to be done...
Wonder if they could keep the blue side up...especially with the yaw damper off, as it had to be for takeoff/landing on many older models.