Re: V Speeds

Jay Scheevel

Those numbers are likely too low on the low end. Also depends on weight. Typically, the values are determined at gross weight, and using an O200 will raise your empty and likely raise gross as well (you are the manufacturer so your call). My Vs at 1100 pounds is 70 mph, Vx is 88, Vy is 95, Vm is 145 (adopted from the UK type sheet). Your Vc will likely be faster than my Tri-Q2, so no comment. Vne is 200. 

On Jan 18, 2023, at 7:13 PM, Robert Schmid <robert@...> wrote:

I am making panel decals and am looking at expected v speeds for a Q2 wing with an O-200 engine. Here is what I found in digging thru my docs ...

Vx                 70 mph
Vy                 85 mph
Vs                 60 mph
Vc                160 mph
Vm              135 mph
Vne             200 mph

Close? And yes I understand that I need to test these and run numbers and graphs later but for now I am trying to get conservative ballpark numbers.

Thanks Robert
Robert "TheFrisco" Schmid
(408) 805-5450

Love building planes almost as much as flying. Latest completed build is "Loki", a Chinook Plus 2 bush plane.

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