Sorry for joining this thread lately...
As suggested by serveral people if only GPS data are available (ie:
Lat/Long, Ground Speed, Ground Track and rough altitdue.)
For pitch restitution :
With two dated altitude data, we can compute vertical speed.
From vertical speed and ground speed, we can
Warning: this is all written with not enough sleep and not enough
caffiene, read and respond at your own risk. :-)
Mat Churchill wrote:
I can see several business ideas related to this along the lines of
something that could be fun to develop but which also has a variety of
commercial
I can see several business ideas related to this along the lines of
something that could be fun to develop but which also has a variety of
commercial possibilities.
Does anyone have any examples of how commercial collaborations with open
source projects actually work in practical terms ?
For
On Sun, 11 Jul 2004 22:22:23 +0100, Mat wrote in message
[EMAIL PROTECTED]:
I can see several business ideas related to this along the lines of
something that could be fun to develop but which also has a variety of
commercial possibilities.
Does anyone have any examples of how commercial
I'd thought of drilling a hole in the ball of a serial mouse and
attaching a weight on a stick to it. Mount the mouse in a cage with a
spirit level on it, fix the cage in the aircraft and get a zeroed
reading and then record mouse positions against time during flight.
An upside down joystick with
Mat Churchill wrote:
Problem is I imagine the weight would be thrown around by centrifugal
force messing up the readings.
Correct, and not only by centrifugal forces. _Any_ sort of acceleration
will make your data unsuable. You're looking for what is called IMU,
Inertial Measurement Unit. A
Mat Churchill wrote:
I'd thought of drilling a hole in the ball of a serial mouse and
attaching a weight on a stick to it. Mount the mouse in a cage with a
spirit level on it, fix the cage in the aircraft and get a zeroed
reading and then record mouse positions against time during flight.
An
On Fri, 9 Jul 2004 11:32:05 + (UTC), Martin wrote in message
[EMAIL PROTECTED]:
Mat Churchill wrote:
Problem is I imagine the weight would be thrown around by
centrifugal force messing up the readings.
Correct, and not only by centrifugal forces. _Any_ sort of
acceleration will
Arnt Karlsen wrote:
..2 factors: how does these handle planet rotation, and, how accurate
are these IMU's.
Typical IMU's don't handle planet rotation at all because they never
know _where_ on the planet they are located (you need to handle it
different depending on which half of out earth you
On Fri, 9 Jul 2004 14:35:17 + (UTC), Martin wrote in message
[EMAIL PROTECTED]:
Arnt Karlsen wrote:
..2 factors: how does these handle planet rotation, and, how
accurate are these IMU's.
Typical IMU's don't handle planet rotation at all because they never
know _where_ on the
If you *really* want the attitude information, your best bet is to buy one
of the new, portable backup gyros like this:
http://www.icarusinstruments.com/microEFIS.html
They're not cheap, but they'd be an order of magnitude cheaper than trying
to set something up to interface with the
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