Outside our Box

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

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

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

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!!!

"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.

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.

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