On Sun, 14 Sep 2003 18:43:01 +0000, clar wrote:

In a 20 knott headwind the Peg will hover under power at a fairly steep
angle. In a 30 knott wind it can be backed onto the runway. It is
similar to a scale Helio Courier. It has automatic leading edge slats
and full span flaperons. Gross weight is 1420 lbs.

I am building one.

Do you know how light you need to be to truly hover in that 20 kt wind?
Have you actually seen this, or only heard about it? Where did the
reported wind speed come from? Estimated wind speed, hand held anemometer
or calibrated airfield anemometer?

There is a fairly steep wind gradient in the first few feet above the
ground, so if the reported wind speed comes from an anemometer at say 6 ft
AGL, the wind speed at say 50 ft AGL would be a fair bit higher. The data
from airfield anemometers is corrected to report what the wind would be at
10 meters AGL.

For altitudes above 5 ft, the standard correction for wind speeds is W2 =
W1 * (H2/H1)^(1/7), where W1 is the measured wind speed at height H1 and
W2 is the corrected wind speed at height H2.

How far along is your project? Where are you located? I'm looking
forward to seeing it fly someday.

--
Kevin Horton RV-8 (finishing kit)
Ottawa, Canada
http://go.phpwebhosting.com/~khorton/rv8/