51% rule

j bird

Gold Supporter
John, My Dom. weighs in, around 500# empty, I would guesstimate with a Sub. engine your Dom. will be in the same ballpark weight wise. Ernie recommended 26' cruiser blades for my weight of gyro.


Junior Member
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Tom, or others...

Do you have a link or a pdf copy of the Approved 51% list that was in effect prior to OCT 2009? I am not using any Commercial Assistance so "use prior policy" applies according to AC 20-27G.

The new Mini-500 kit I am assembling was on that approved list and it is not on the NOV 2013 list. I don't want to have to complete an Amateur-Built Fabrication and Assembly Checklist to prove 51%.
Please advise.