market value of an original Bensen.

quadrirotor

André MARTIN
Joined
Oct 30, 2003
Messages
1,795
Location
Québec, Canada
Aircraft
airplane, trike, gyro, paramotor...
Total Flight Time
350
What is the estimated price for an 1973 original Bensen with an VW engine and metal blades, brand new, never flown?
 

Doug Riley

Platinum Member
Joined
Jan 11, 2004
Messages
6,582
Andre, with something that old, you would have to disassemble and rebuild. You'd probably find that some parts were corroded simply by the passage of time in the presence of ordinary levels of moisture.

How would a 30-year-old engine look inside if it hadn't been run in all that time? It might be useless as a result of rust. Plastic/rubber seals will likely be hardened and cracked or crumbling. The same might be true of the rotor head and prop. Old wood props will occasionally fly apart as a result of rot that is not obvious on the surface.

Bensen metal blades are inefficient compared to more recent blade designs.

The value of a VW engine is greatly dependent on the quality of the conversion. If it's just a junkyard car engine to which someone added a prop flange on the fan end of the crankshaft, it's worth a couple hundred dollars at most. If OTOH it's a purpose-built aircraft engine such as a Revmaster (involving a bearing-supported crankshaft extension, magneto ingintion, boring and stroking, different cam, oil cooler, special case/heads/carburetor, internal balancing and magnafluxing etc.) then it's worth some money if it is still in good condition.

Without investigating these issues, I'd be afraid to pay more than $1000 US. If, by some miracle of preservation, the machine proved to be in flyable condition after careful investigation, it might be worth $5000.

Doug Riley
(recovering former VW gyro pilot)
 

quadrirotor

André MARTIN
Joined
Oct 30, 2003
Messages
1,795
Location
Québec, Canada
Aircraft
airplane, trike, gyro, paramotor...
Total Flight Time
350
Thanks Doug to take the time to answer. I agree with you that's an antiquity. My friend, the owner of the gyro is gone a give it to the AIR MUSEUM at Ottawa and expects to have a tax return!...
 

Doug Riley

Platinum Member
Joined
Jan 11, 2004
Messages
6,582
Well, in THAT case, it's worth at least as much as a Learjet of the same vintage!
 
Top