slyck(at)frontiernet.net
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 Posted: Fri Feb 03, 2006 6:21 am Post subject: No Title |
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That same effect is what will make me reform the front of my handmade
aluminum nose cone. At easy cruise and below the airspeed works ok.
If I crank it
up the nose tips down and the ASI starts doing a little dance.
The probe is located 15" back of the front and 3 1/4" standoff from the
bottom.
The air should be linear at that point, fast or slow.
Eventually I may know how fast I'm going.
-BB
On 3, Feb 2006, at 2:26 AM, kuffel(at)cyberport.net wrote:
| Quote: |
DVD asks:
<<don't need the "tube" because the bulkhead fitting is forward of the
nose about 7/8" and should be in undisturbed air?>>
As in most things aeronautic, "not exactly". 7/8" in front of the
wing or
nose cone the air is relatively undisturbed *relative to the surface*.
In
other words, almost static. Unfortunately, what you need to measure is
air undisturbed relative to the ground (+/- wind of course). The
general
rule is to reach such air you should be as far away from the nearest
surface as the radius of curvature of that surface.
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