Andy Ross wrote:
Melchior FRANZ wrote:
1. YASim delivers a positive /velocities/airspeed-kt on backward
flight.
This strikes me as correct behavior. If you stick a pitot tube
into an airstream backwards, you will get exactly the same
reading as forward (well, modulo viscosity and
On Mon, 17 Jul 2006, Melchior FRANZ wrote:
Seems that there are two bugs that make the bo105 ASI show
positive speeds when flying backwards:
1. YASim delivers a positive /velocities/airspeed-kt on backward
flight.
The second is easy to fix, but I have no idea about the first.
* Joacim Persson -- Monday 17 July 2006 10:00:
On Mon, 17 Jul 2006, Melchior FRANZ wrote:
1. YASim delivers a positive /velocities/airspeed-kt on backward
flight.
The second is easy to fix, but I have no idea about the first.
/orientation/side-slip-*
So, as you didn't bother to
Melchior
Seems that there are two bugs that make the bo105 ASI show
positive speeds when flying backwards:
1. YASim delivers a positive /velocities/airspeed-kt on backward
flight.
2. Systems/pitot.cxx wouldn't handle negative values correctly,
anyway, as it squares the speed
* Vivian Meazza -- Monday 17 July 2006 12:30:
Melchior
2. Systems/pitot.cxx wouldn't handle negative values correctly,
anyway, as it squares the speed without checking for negatives.
A pitot tube compares the pressure along the _forward_ axis of the tube,
I know, and this was not the
On Mon, 17 Jul 2006, Melchior FRANZ wrote:
/orientation/side-slip-*
So, as you didn't bother to write a whole sentence and leave the
interpretation to the reader, which I find quite annoying, is it
the following what you are trying to say: YASim is right, (airspeed-kt)
is *not* meant to be
* Vivian Meazza -- Monday 17 July 2006 12:30:
You need some other device to measure backward velocity.
I implemented a radar doppler based drift indicator already a few weeks
ago, thanks. But we are speaking about a display error in the ASI.
m.
Melchior FRANZ wrote:
1. YASim delivers a positive /velocities/airspeed-kt on backward
flight.
This strikes me as correct behavior. If you stick a pitot tube
into an airstream backwards, you will get exactly the same
reading as forward (well, modulo viscosity and mach effects). If
what you
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