> More specifically: when it starts changing pitch, when it stops
> changing pitch, change rate, max RPM, min RPM, launch RPM, final RPM, etc.
... I was introduced to the use of a stroke watch last August in
Belgrade by the British gents with whom I had the privilege to share
timekeepers, and who assisted me in all possible ways during the
contest. Finding out how useful the thing is, I considered purchasing
one, then realized that the Palm handhelds that I use already for
modeling (e.g. setting up times of the electronic timers in my outdoor
FF models) might do the job, so I dug out the programming environment
and started to develop an application.
Currently I am only half-way there, I have solved the timing issues (had
to use the native clock of the Palm and use some interrupt-trapping to
make the stopwatch run at correct time), but still need to work on
database issues and do some tidying up. Anyway, my idea is to combine
stopwatch and the stroke watch, so that I can take multiple readings
throughout the flight, and store the measures together with the flight
time to get a database entry from each flight. Eventually I hope to add
also some additional data such as motor winding data and model ID into
the dataset, to build my flight log on the app. The attached screenshot
is from the software test-run on a Palm simulator on PC, therefore the
numbers do not really make sense. But, the first column is the times
(mm:ss) and the second one the calculated RPM.
-Tapio-
- application/x-ygp-stripped attachment: stored
Received on Fri Jan 13 2012 - 04:34:10 CET