Moderator,
"Have you ever done this?" (Measured prop RPS on a flying indoor model.)
Yes.
"But have you ever done this?" (Done the above ten or twenty times in a
single flight.)
No. But other people have and have not made full use of the data as I am
suggesting.
"Have you ever done this?" (Integrated empirical time functions.)
Yes, on prop static bench test data provided by a friend, among other things.
"Have you ever done this? If so, on what model? Your plastic prop
Daniflyer?"
Yes, as above on static prop unwinding test data provided by a friend. Also
measuring level flight RPS on the Dandiflyer. The 6" Dandiflyer prop is
driven by a 3/32" strip from the kit. I use a thinner motor, usually about
0.070". Even then, the RPS is around 21 to 22 revolutions per second, too fast
to count visually, at least for my bad eyes. I count starting turns, ending
turns, take the difference and divide by the circuit time to get RPS, advance
ratio and torque coefficient. And I am going to stop here because I am
outside the envelope and what I do next would certainly be considered heretical.
"You have time to answer every question about indoor, but only excuses about
not having built a real indoor model, such as LPP, and to report results."
I probably should spend less time reading posts and replying to them with
ideas and suggestions. It does take away from designing and building time.
But some of the questions have made me think about problems that I will need to
solve eventually any way. I was not aware that the AMA Cub and the
Dandiflyer were not indoor airplanes.
"Henceforth, this will be your price of admission to continue teaching on
Indoor_Construction."
I am not clear what you mean by this. Please explain.
Gary Hinze
************************************** See what's free at
http://www.aol.com.
[Non-text portions of this message have been removed]
Received on Wed May 02 2007 - 01:21:56 CEST