Oops, I forgot to delete that trailer..........
-----Original Message-----
From: Albaugh, Neil
Sent: Wednesday, October 29, 2003 2:03 PM
To: 'docb8532@aol.com'; land-speed@autox.team.net
Subject: RE: aero lift
Doc;
Not a bad idea; you could use a sensitive differential pressure transducer
to sense pressure on both sides of the nose to detect a subtle yaw
condition. I think the transducer could detect a far lower static yaw angle
than a driver could. A car may feel like it's going straight when it really
isn't; as speed increases, it might go unstable and spin.
Maybe an "angle of attack" vane could do the same thing if it was mounted
vertically. Looks like there could be a zillion channels of data recorded--
this is getting out of hand. :)
Regards, Neil Tucson, AZ
-----Original Message-----
From: docb8532@aol.com [mailto:docb8532@aol.com]
Sent: Wednesday, October 29, 2003 11:17 AM
To: land-speed@autox.team.net
Subject: aero lift
i've been following the discussions on finding a means of measuring lift on
a
salt racer.
the strain gage idea sounds pretty good if you can filter the noise. it's
the
same device used in wind tunnels.
i was wondering if there is a way to measure the pressure drop (or
increase)
on the top surface of the vehicle via vacuume tubes or something. there is a
small aeroplane that compares pressure drops across the wing surfaces to
keep
the plane stable in flight, but i can't remember the name--might be a mooney
or aerocoup. if you could generate a strong enough vacume signal you could
monitor (data ac) the change and look for a trend as speed increased on
successive runs. just wondering
doc
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