V Speeds expected

Working on the draft version of the POH. Would like to insert reasonably close V speeds as a starting point for my configuration.

Anybody care to share what they use for a -8, IO-360 (180), swinging a 72" x 85" Sens?

Speeds

Here is a good start...180 HP XIO360 M1B with Hartzell C/S Prop
Speed ? Solo Weight
Top Speed 204 MPH *____________________
Cruise 75% power @ 8000 ft: 195 MPH *____________________
Cruise 55% power @ 8000 ft: 173 MPH *____________________
Stall Speed: 51 MPH *____________________

Speed ? Gross Weight
Top Speed 202 MPH *____________________
Cruise - 75% power @ 8000 ft: 193 MPH *____________________
Cruise - 55% power @ 8000 ft: 171 MPH *____________________
Stall Speed: 58 MPH *____________________

V speeds

Your speeds are low compared to those published on the Vans site. Do you have wheel pants on your Aircraft? Do you know any other obvious cause for the low speeds?

Bill

The speeds Posted are I similar to my own. Are you experiencing and noting higher speeds. Vans numbers would be in weather ideal for tests.

Have you looked at the POHs available here on VAF?

http://www.vansairforce.net/poh.htm

I used the one for the -7A (word doc) and updated it recently for my now flying plane.

V speeds1

My -8 has no gear, intersection fairings or wheel pants and seems a little faster. That's why I asked. It does have 10:1 pistons from Lycon. Have you done the GPS checks to confirm IAS?

I did

Raymo said:

Have you looked at the POHs available here on VAF?

http://www.vansairforce.net/poh.htm

I used the one for the -7A (word doc) and updated it recently for my now flying plane.

Click to expand...

Looking for a ship with the same configuration as mine.