RCU Forums - View Single Post - Bob Reuther-Tom Moore/Vertigo II SPA legal?
Old 09-11-2008 | 11:14 AM
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kingaltair
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Default RE: Bob Reuther-Tom Moore/Vertigo II SPA legal?

ORIGINAL: RFJ

Well done Robert, Duane and Vince - we got a result. I hope there will be a lot more Vertigo IIs around now.

The P-8 is legal
I find that very surprising. Thought it was much later than Dec 75.

Ray
The PHOENIX 8 has a quirky history as far as being declared SPA-legal. The arguement was made that since the EARLY PHOENIX SERIES is legal, the whole series should also be legal, (through to the Phoenix 8). I don't agree with that line of thinking, but the decision was made long ago.

Interestingly, since I've been associated with SPA, (2005), I have not seen a single Phoenix 8, (or ANY Phoenix for that matter) at a contest. I believe the reason has to do with the small engine compartment of the Phoenix 5 through 8. These planes were obviously designed to be used with a tuned pipe and a hot .61 in a cramped engine compartment. The planes that do best in SPA, (such as the DADDY RABBIT on the mock cover or PHANTOM 1 that President Bruce Underwood flys), have a larger wing area, and can handle the popular, (and larger/heavier) .91 OS Surpass II.

The Dirty Birdy seems to be the exception, and seems equally at home with a .91 or .61 2-stroke. The D.B. are built LIGHT if they have the 4-stroke.

Duane
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