In the files section for this group.
On Mon, 2008-03-17 at 09:37 -0700, Denny Dock wrote:
> Are the Little Square plans on the web???
> Thanks,
> Denny
>
> Bill Gowen <b.gowen_at_comcast.net> wrote:
> Sorry - missed that one. I don't typically mess with the pitch
> distribution. If I do at all it's usually just to try to get the pitch
> to be close to the same across the prop diameter. I've had some
> success
> with just bending the blades by hand to change the distribution.
>
> On Mon, 2008-03-17 at 15:53 +0000, soslipstream wrote:
> > Bill,
> >
> > Thanks for your reply. We still have a questions on further
> > modifying the Ikara prop for wash-out. Any suggestions?
> >
> > Thanks,
> > Tom
> >
> > --- In Indoor_Construction_at_yahoogroups.com, Bill Gowen
> <b.gowen_at_...>
> > wrote:
> > >
> > > Tom
> > > The most successful local LittleSquare is using the high
> > performance
> > > wing design shown as an alternate on the plan. I believe this is
> > an 8%
> > > camber. It seems to be about half a minute better than the plain
> > vanilla
> > > wing in a low ceiling.
> > >
> > > I haven't had much experience with Super Sport since I have a lot
> > of Tan
> > > II. Last Friday I was helping a team flying a nicely built one of
> > Dave's
> > > models on .095 SS and the backwards Ikara prop that he supplies.
> > They
> > > topped out at about 1 1/2 minutes. A change to .095 2/98 TanII
> put
> > them
> > > at around 2:15. They are changing to the bigger prop and will be
> > flying
> > > on .100 7/02 next time.
> > >
> > > The Chamblee team has 2 LittleSquares using the modified wing
> > section
> > > and the big prop. They are in the 3 1/2 minute range in 25 feet
> > also
> > > flying on .100 7/02.
> > >
> > > I think the big prop requires heavy rubber for low ceilings. For a
> > > higher ceiling maybe a little less would be okay. If you have to
> > use SS
> > > I'd probably go somewhere over .100. But 10% turns left is not
> bad
> > so
> > > maybe your model is flying on less power than these.
> > >
> > > My best luck with the big Ikara has been with the TE of the
> blades
> > cut
> > > off flush with the spar and the pitch set around 14.
> > >
> > > On Mon, 2008-03-17 at 03:10 +0000, soslipstream wrote:
> > > > Bill Gowen-
> > > >
> > > > Thanks for publishing the LittleSquares plan. Two weeks ago my
> > > > daughter Ruth patiently made notes on its features. She is
> using
> > my
> > > > Hi-Espect design and was using a wing camber that was almost
> > dead-on
> > > > with your design. She also has twin circular fins formed using
> a
> > > > small glass olive jar. The airplane is ballasted up to 6 grams.
> > She
> > > > flies on .087 Tan SS rubber.
> > > >
> > > > Last week she built a new wing with 5% higher camber and had me
> > time
> > > > two flights at the high school. At a max of 21'(bottom of
> > scoreboard
> > > > box in the gym's center) both flights were over 3 minutes. She
> > was
> > > > only using 3/5's max torque on the motor winds. The cruise was
> > over
> > > > 50% of the flight time. The airplane came down with 10% winds
> > left.
> > > >
> > > > We would both like to know this; she is using the fat Ikara
> prop
> > > > with your suggested modifications. She wants to modify a second
> > > > version and have some wash-out on the tips. How does she add
> > this
> > > > wash-out and much area should she modify?
> > > >
> > > > The IN state finals are under a 35' clean area with probably an
> > > > orbit diameter of 50'+ available. She plans on flying a large
> > orbit
> > > > with a slow climb, long cruise and slow descent. Will the added
> > wash-
> > > > out help? Should she consider upping the cross section on the
> > rubber
> > > > motor?
> > > >
> > > > Thanks,
> > > > Tom
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> >
> >
> >
> >
> >
> >
>
> [Non-text portions of this message have been removed]
>
> ---------------------------------
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Received on Mon Mar 17 2008 - 10:47:40 CET
This archive was generated by Yannick on Sat Dec 14 2019 - 19:13:45 CET