John, his message for Cornel said 42.9 – 43.1 average rpm
LeRoy Cordes
AMA 16974
Chicago, IL
In God We Trust
On Fri, 16 Mar 2007 23:58:04 -0000 "John Kagan" <john_kagan_at_hotmail.com>
writes:
> Great job to Cornel! Did anyone get any rpm counts during the
> flight? It would be interesting to see how much flare the prop had.
>
> Also, how much backoff before launch.
>
> Congratulations!
>
> --- In Indoor_Construction_at_yahoogroups.com, "popaf1d1" <tpopa@...>
> wrote:
> >
> > Dear friends,
> >
> > We had 2 training sessions this year in the salt mine,Feb 8th to
> > 10th, and March 9th to 11th.
> > Conditions were as usual in the winter, 10.1-10.2 Celsius degrees
>
> > and relative humidity 37% in February and 43 % in March.
> > We were 5 people in mine, so the conditions were perfect.
> > The nice story began with Cornel, flying 19 :30 with half rubber,
>
> > then 38:20 next day, full rubber. All the others, around 34
> minutes.
> > In March, Cornel came back with a new model and a new prop, I came
>
> > back with 4 new models. Soon after our arrival, Cornel did 19:50
> > with the new model and, immediately, 39:25 with, maybe, 5 seconds
>
> of
> > stirring. He was about 10 meters from the ceiling, landed with 80
>
> > turns, so we all waited for the first over 40 minutes flight with
>
> > new F1D in the salt mine. Next day, he stirred his model in the
> wall
> > just under the lamps, injuring the wing and the prop. After fixing
>
> > them he flew 38:30 and 38:50 not climbing near the ceiling. All
> the
> > others did the same around 34 minutes.
> > I shared the table with Cornel, so I can give you some details
> about
> > his models and flights:
> > - weight of the model: exactly1.2gr.
> > - motor stick length : 290 mm
> > - tailboom length: 570 mm
> > - first wing post: 40 mm from nose
> > - wing posts height: around 19 mm
> > - 1.256-1.260 g/m May99 rubber
> > - 1700 – 1740 turns on board
> > - 60-80 turns left
> > - 42.9 – 43.1 average rpm
> > - positive flaring prop - 480 dia., 760 pitch
> >
> > I will try to put a picture in the photo section.
> > It was really beautiful.
> >
> > Regards,
> > Aurel Popa
> >
>
>
>
>
> ------------------------ Yahoo! Groups Sponsor
> --------------------~-->
> Great things are happening at Yahoo! Groups. See the new email
> design.
> http://us.click.yahoo.com/lOt0.A/hOaOAA/yQLSAA/YRTolB/TM
> --------------------------------------------------------------------~->
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
LeRoy Cordes
AMA 16974
Chicago, IL
In God We Trust
Received on Sun Mar 18 2007 - 08:01:50 CET