Outside our Box

[Kemp[_2_]]

In the Sept 08 issue of RC Sport Flyer magazine, there are a number of
soaring focused articles:
- Dynamic soaring (pg 56). These guys get their RC gliders to over
300mph!
- Vintage Glider rally (pg 40)
- ASG-29 (pg 122). About 1/3 scale. It's huge!

Go to: http://rc-sf.com/current_issue/current.html

Note the ability to preview (at medium res) the pages, hence the pages
#s above.

I have no financial interest in this, only an interest to point out
high quality articles outside of the usual reading.

Kemp

[Adam]

On Aug 17, 10:15*am, Kemp > wrote:
> In the Sept 08 issue of RC Sport Flyer magazine, there are a number of
> soaring focused articles:
> - Dynamic soaring (pg 56). *These guys get their RC gliders to over
> 300mph!
> - Vintage Glider rally (pg 40)
> - ASG-29 (pg 122). *About 1/3 scale. *It's huge!
>
> Go to: *http://rc-sf.com/current_issue/current.html
>
> Note the ability to preview (at medium res) the pages, hence the pages
> #s above.
>
> I have no financial interest in this, only an interest to point out
> high quality articles outside of the usual reading.
>
> Kemp

With regards to R/C dynamic soaring, the current record is 365 mph
with 2.5 meters span. A big problem has been that commercial radar
guns won't read past 305 mph. Now they have custom guns prepared so
the record will continue to climb next winter. All the planes are
custom built for this application. Only one commercial model has
exceeded 300 mph.

400 mph should fall this winter with this very special 4 meter one-
off:
http://www.rcgroups.com/forums/showthread.php?t=778363

My best is 178 mph in the midwest, and then the pieces start falling
off...I can't afford to go any faster! It is very addicting to extract
this kind of speed with a motorless craft.
/Adam

[Eric Greenwell]

Adam wrote:

> With regards to R/C dynamic soaring, the current record is 365 mph
> with 2.5 meters span. A big problem has been that commercial radar
> guns won't read past 305 mph. Now they have custom guns prepared so
> the record will continue to climb next winter. All the planes are
> custom built for this application. Only one commercial model has
> exceeded 300 mph.
>
> 400 mph should fall this winter with this very special 4 meter one-
> off:
> http://www.rcgroups.com/forums/showthread.php?t=778363

Wow! Sounds lethal. I don't think I"d want to fly one unless I was in a
brick hut with Lexan windows.

--
Eric Greenwell - Washington State, USA
* Change "netto" to "net" to email me directly

* Updated! "Transponders in Sailplanes" http://tinyurl.com/y739x4
* New Jan '08 - sections on Mode S, TPAS, ADS-B, Flarm, more

* "A Guide to Self-launching Sailplane Operation" at www.motorglider.org

[KevinFinke]

Breaking the 400mph barrier is wicked fast for an RC model. Anybody
know what the powered model record is for an airplane? I don't think
the jet models even go this fast. That's amazing!!!

[Bill Daniels]

"KevinFinke" > wrote in message
...
> Breaking the 400mph barrier is wicked fast for an RC model. Anybody
> know what the powered model record is for an airplane? I don't think
> the jet models even go this fast. That's amazing!!!

I think the guys flying long distances in mountain wave should take a good
look at this. There might be a sailplane desgined just for this.

[Uncle Fuzzy]

On Aug 19, 5:28*pm, "Bill Daniels" <bildan@comcast-dot-net> wrote:
> "KevinFinke" > wrote in message
>
> ...
>
> > Breaking the 400mph barrier is wicked fast for an RC model. Anybody
> > know what the powered model record is for an airplane? I don't think
> > the jet models even go this fast. That's amazing!!!
>
> I think the guys flying long distances in mountain wave should take a good
> look at this. *There might be a sailplane desgined just for this.

Unfortunately you'd need a pilot designed for it too. Early Dynamic
Soaring planes which tested to over 30 g's folded up pretty quickly.
If they could afford the extra strain due to weight, instrumenting a
nice slow 250 mph glider with an accelerometer would be enlightening.

[Nyal Williams[_2_]]

Are there any videos of this somewhere? Where can I read something about
the models and the conditions required?

At 00:59 20 August 2008, Uncle Fuzzy wrote:
>On Aug 19, 5:28=A0pm, "Bill Daniels" wrote:
>> "KevinFinke" wrote in message
>>
>>
...
>>
>> > Breaking the 400mph barrier is wicked fast for an RC model. Anybody
>> > know what the powered model record is for an airplane? I don't
think
>> > the jet models even go this fast. That's amazing!!!
>>
>> I think the guys flying long distances in mountain wave should take a
>goo=
>d
>> look at this. =A0There might be a sailplane desgined just for this.
>
>Unfortunately you'd need a pilot designed for it too. Early Dynamic
>Soaring planes which tested to over 30 g's folded up pretty quickly.
>If they could afford the extra strain due to weight, instrumenting a
>nice slow 250 mph glider with an accelerometer would be enlightening.
>

[sisu1a]

On Aug 19, 5:59 pm, Uncle Fuzzy > wrote:
> On Aug 19, 5:28 pm, "Bill Daniels" <bildan@comcast-dot-net> wrote:
>
> > "KevinFinke" > wrote in message
>
> ...
>
> > > Breaking the 400mph barrier is wicked fast for an RC model. Anybody
> > > know what the powered model record is for an airplane? I don't think
> > > the jet models even go this fast. That's amazing!!!
>
> > I think the guys flying long distances in mountain wave should take a good
> > look at this. There might be a sailplane desgined just for this.
>
> Unfortunately you'd need a pilot designed for it too. Early Dynamic
> Soaring planes which tested to over 30 g's folded up pretty quickly.
> If they could afford the extra strain due to weight, instrumenting a
> nice slow 250 mph glider with an accelerometer would be enlightening.

The DuckHawk is planned to have a 200kt VNE and and a 160kt VA as well
as being stressed for +`11 to -9 G's, that fit your bill?
http://www.windward-performance.com/duckhawkintro.php I sure hope to
see some actual hardware for this up highly anticipated and comer this
coming ESA meet at Tehachapi...last I heard wing molds had already
been cut, which is no small task. Windward is trying to have a flying
prototype by the end of this year. With a G-suit, one could actually
attempt to try their hand at dynamic soaring with this machine, at
least within it's airframe/pilot limits...

-Paul

[sisu1a]

On Aug 19, 6:54 pm, Nyal Williams > wrote:
> Are there any videos of this somewhere? Where can I read something about
> the models and the conditions required?

http://www.youtube.com/watch?v=Raz_iQp39pg

http://www.youtube.com/watch?v=b2j-whx-efg&feature=related

http://www.youtube.com/watch?v=6T3pYMFXn5Y&feature=related

Model Dynamic soaring:

http://www.tmfc.org.uk/ds/darkside.html

And more complete explanation of more dynamic soaring conditions:

http://www.esoaring.com/albatros_presentation_esa.pdf

-Paul

[Craig[_2_]]

On Aug 19, 6:54*pm, Nyal Williams > wrote:
> Are there any videos of this somewhere? *Where can I read something about
> the models and the conditions required?
>
> At 00:59 20 August 2008, Uncle Fuzzy wrote:>On Aug 19, 5:28=A0pm, "Bill Daniels" *wrote:
> >> "KevinFinke" *wrote in message
>
> ...
>
>
>
> >> > Breaking the 400mph barrier is wicked fast for an RC model. Anybody
> >> > know what the powered model record is for an airplane? I don't
> think
> >> > the jet models even go this fast. That's amazing!!!
>
> >> I think the guys flying long distances in mountain wave should take a
> >goo=
> >d
> >> look at this. =A0There might be a sailplane desgined just for this.
>
> >Unfortunately you'd need a pilot designed for it too. *Early Dynamic
> >Soaring planes which tested to over 30 g's folded up pretty quickly.
> >If they could afford the extra strain due to weight, instrumenting a
> >nice slow 250 mph glider with an accelerometer would be enlightening.

Google "parker mountain ds" lots there to choose from.

Craig

[Eric Greenwell]

Bill Daniels wrote:
> "KevinFinke" > wrote in message
> ...
>> Breaking the 400mph barrier is wicked fast for an RC model. Anybody
>> know what the powered model record is for an airplane? I don't think
>> the jet models even go this fast. That's amazing!!!
>
> I think the guys flying long distances in mountain wave should take a good
> look at this. There might be a sailplane desgined just for this.

Perhaps you are thinking of this one:

DuckHawk Specifications

Wing Span 49.2 FT
Wing Area 80.0 sq FT
Wing Aspect Ratio 30:1
Weight (empty) 300 LBS
Weight (gross) 860 LBS
Manuevering Speed Va 160 KTS
Rough Air Redline 165 KTS
Smooth Air Redline 200 KTS

With a smooth air redline of 200 knots, it could cruise much faster in
strong wave than currently available gliders. I know of of at least one
long distance wave pilot that is very interested in the DuckHawk.

When I visited the factory in June, I was told there were several
orders, and the first one may fly late 2008, but more likely early in
2009. The wing molds were on hand and the center section mockup
(retractable gear, control system with mixer, spar and root
configuration) was essentially complete. The fuselage uses the same mold
as the SparrowHawk, but with very different internal structure and
pre-preg layup. I'm quite interested in the motorglider version, but the
details are tenative and it's farther down the road than the 15 Meter
racing version.

--
Eric Greenwell - Washington State, USA
* Change "netto" to "net" to email me directly

* Updated! "Transponders in Sailplanes" http://tinyurl.com/y739x4
* New Jan '08 - sections on Mode S, TPAS, ADS-B, Flarm, more

* "A Guide to Self-launching Sailplane Operation" at www.motorglider.org