Asymmetrics...

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Avion

Active Member
Joined
Feb 9, 2004
Messages
27
Location
Brisbane, Australia
Another weird and wonderfull design in aviation history - the assymetrics! Probably the most famous ones are Blohm&Voss 141and Rutan's Boomerang.

How does one calculate CG offset to compensate for the engine and prop moment and i believe for the tail fin/rudder offset for the propwash strike? Are there any other calculations specifically for this configuration?

Regards
Avion
 

orion

R.I.P.
Joined
Mar 2, 2003
Messages
5,800
Location
Western Washington
In general, all calculations are handled just like for any other airplane. The only thing you have to do is add in the span-wise effects of calcualting the balancing forces - but that's relatively straight forward.

The jury however is still out as to the benefit of this type of design. There are some theoretical benefits (at least claimed by the designers) howerver, to the best of my knowlege, I have not seen any conclusive evidence that you get any appreciable (or even measurable) improvement in performance nor efficiency with these assymetric configurations.
 
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