"Grumman-581" wrote in message
news : On Tue, 09 Jan 2007 13:17:32 +0000, in
: 28, Bob Moore wrote:
: I think that you are going to have to work with TAS instead of GS, but
: Figure 2.29 on page 179 of Aerodynamics for Naval Aviators has a graph
: of all the factors involved.
:
: Yeah, to be perfectly accurate, I would need air speed and not ground
: speed in addition to wind angle corrections, but I was curious if I could
: get a good approximation of the bank angle from just what I'm getting from
: the GPS without having to add a considerably costlier device like an
: accelerometer / gyro with rs232 outputs... The Garmin 18 5Hz puck type GPS
: goes for around $150... A bit more than the 1Hz units that are typical for
: car navigation, but not entirely out of line for this project... The
: accelerometer / gyro systems that I've seen so far with rs232 outputs go
: for around $1K-$2K... I understand that there is some new work in
: accelerometers for PC-based pointing devices that have brought the prices
: down considerably compared to the previous devices like this:
:
: http://www.watson-gyro.com/products/...A_80_spec.html
:

Don't know why wind angle would be important. Have to assume a coordinated turn also - a rudder turn would yaw like
crazy but not necessarily result in a bank angle....