os surpass 70 or 91?
09-28-2003, 09:30 AM
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os surpass 70 or 91?
Hello everybody,
I was wondering if an Os Surpass 70 will give unlimited vertical to a 6 pounds plane. I also would like to know if it is enough power to hover and fly out of hover. If not, do you think that a 91 would be too much, considering the small size of the plane which is 55 inches?
Thanks
I was wondering if an Os Surpass 70 will give unlimited vertical to a 6 pounds plane. I also would like to know if it is enough power to hover and fly out of hover. If not, do you think that a 91 would be too much, considering the small size of the plane which is 55 inches?
Thanks
09-28-2003, 03:18 PM
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RE: os surpass 70 or 91?
Chris,
I have an OS91FSII on my 6.5 pound H9 Ultra Stick. I can go vertical all day long with as little as 1/2 throttle. I am using an APC 15x6 and getting 8800 rpm. The OS70 should be OK but I do not know about a vertical pull out with it.
Andrew
I have an OS91FSII on my 6.5 pound H9 Ultra Stick. I can go vertical all day long with as little as 1/2 throttle. I am using an APC 15x6 and getting 8800 rpm. The OS70 should be OK but I do not know about a vertical pull out with it.
Andrew
09-28-2003, 03:31 PM
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RE: os surpass 70 or 91?
i have a H-9 Pizzaz (48 inch span) with a OS 70 surpass and a 13-6 prop. i don't have unlimited vertical but a lot of trust to make hovering ! i think you will be better with a .91 for vertical on a 6 pounds plane... but its depend on what you whant to do !!
