Todd Carrico wrote:

How much extra weight does the third rotor add to an AC installation?

How much HP if configured similarly to a 200 hp 13b?  300 hp?

Todd Carrico

I would guess 100 pounds. But I could be wrong. 
Chuck Harbert would know.

Yes. 300 HP if you are getting two hundread with a 13B
two rotor with proper  intake and exhaust tuning.
 
Paul Lamar
 
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