Bensen reference chart

Earl Shaw

Newbie
Joined
Aug 26, 2009
Messages
40
Location
Innisfil, Ontario
Aircraft
Bensen Mac 72 HP
Total Flight Time
180 fixed wing
Rebuilding a Bensen
I have received an original set of Bensen plans and have noticed a number of conflicting assembly instruction. ie. - mast support angle #11 -sometime to the mast (drawing #8-109-100) other times to the lower front engine bracket(drawing #8-SK-101) Is there more?
My main problem is the Bensen description of hardware. I see no legend referencing actual sizes. I have the other full set of folders that came with the plans.
examples
Washer - 4-750
nuts - 364-428
bolts - 4-20A
Am I missing a reference sheet? If so can someone forward me one.
Thanks Earl Shaw [email protected]
 
These are standard AN hardware numbers
AN364-428 is a shear locking nut.
The AN4-20 bolt has a 2 inch over all length (under the head to tip of threads) and it has a cotter pin hole.
 
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