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-   -   GP Ultimate Owners, Help! (http://www.rcuniverse.com/forum/questions-answers-154/833516-gp-ultimate-owners-help.html)

Mike Buckley 06-04-2003 08:54 PM

GP Ultimate Owners, Help!
 
I was hoping someone out their who owns a GP Ultimate could help me. I'm going to buy the engine tomorrow and I'm having alot of trouble deciding between the .72 and the .91 Saito.

For those of you with a .72 (or an engine with similiar power) will it hover with this engine? Or do I need to go up to the .91 to hover?

mscic-RCU 06-05-2003 01:17 PM

GP Ultimate Owners, Help!
 
is this the .40 ultimate?

GarySS 06-05-2003 06:08 PM

GP Ultimate .40
 
This design typically comes in at around 6 pounds. To hover you will need at least a true 9 pounds of thrust. The Saito .91 is sure to give that.........the .72 might come up to that if you are using 30% nitro.

J.Paul Saure 09-04-2003 05:17 PM

GP Ultimate Owners, Help!
 
I have the .72

Great flier, but it is too heavy to hover with the 72, it takes almost full throttle.

It is a shame that GP uses balsa that heavy. I'd like to scratch build one with light balsa and FG cowl and pants, I bet you can spare up to 1lb!!!

The 91 would be fine but you'll have to work with the throttle. The airframe is very strong. Too strong for a .40 plane, in my opinion-> that makes it so heavy.

Good luck!


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