Why is it that you guys have all these super lite airplanes and claim that a
Blue Dartar 2meter can also be around 25oz? Wow this is under my 40 oz
Mark.. I took a 55oz Yes it was about 55oz Shadow 2meter at a local contest
and Won with it no I am not bragging that I was a much better pilot that day
its just that when you get taught how to thermal sometimes it pays off..
when Super-V's are not staying up what is happening!!
Ok what about the Searcher 2 Meter its not mention here I was thinking of
getting one of these planes maybe next since I am a bit low on 2 meters at
the moment any one see a Searcher 2meter Launch compared to some of these
other Models.. Thanks
Mike
----- Original Message -----
From: "Sal DeFrancesco" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, May 20, 2000 9:23 PM
Subject: [RCSE] 2 meter Spectre reports??? - You may want to also consider
the 2M Dartar
> We used to make the Dove 1 and 2 both of these sailplanes were under 27
ounces. The Dove 1 was in the 22-23 ounce range. They were
> both good sailplanes and won quite a few contests but suffered from having
too little area. Once you drop in area you need to have a
> very low wingloading for the sailplane to have a decent sinkrate, usually
the glide is pretty good but the sailplane suffers from
> having a small range of angle of attack where the CL is reasonable. The
flying was great but the launch heights could have been
> better. This is usually a function of aspect ratio on a two meter
sailplanes. The high aspect ratio and small chords will just not
> pull hard enough on a typical contest winch especially when the big
contests load the line with 300 lb test. The airfoils reach
> critical and supercritical reynolds numbers (not sure if I'm saying this
correctly) and have a very small range of angle of attack.
> In a contest the wing is required to fly at a high angle of attack and to
pull hard enough to get a strong high launch. Since I
> have tried this type of design I am wondering how the Spectra 2 meter
compares to other 2 meters with regards to winch heights. I
> would be interested to find out how this has worked out.
>
> I do notice that the Blu Darter has 600 sq in. so it should pull just fine
on the winch. Looks like it might really be a winner.
>
> One last question...what is the tail moment on the Blue Darter two meter
like?
>
> Howard Mark wrote:
>
> > I've seen a bit of banter regarding ~25 oz. 2 meter planes lately.
> > Just a FYI -- the 2M BluDartar is also an impressive composite 2M and
can
> > be built to less than 25 oz.
> > I have not been able to break the wings on F3B or ford winches.
> > It launches very high, will easily turn in 2 wingspans.
> > I've thermalled mine out from a weak hand launch 2 weeks after hernia
> > surgery.
> > The LD is very good, and it takes ballast well - I've flown mine with 18
oz.
> > onboard.
> > With the right paint job you have a 2M system that is easily as good as
> > anything out there.
>
> --
> Sal DeFrancesco
> Northeast Sailplane Products
> 140 Kirby Lane
> Williston, VT. 05495
> 802-658-9482
>
> Website: http://www.nesail.com
>
>
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