The best way is to Google Dynamic Soaring or DS'ing. Some sites I found
are:
http://www.geocities.com/soaringbythebay/dsoar.htm
or:
http://www.charlesriverrc.org/articles/flying/markdrela_ds.htm
Try the Lift Ticket sample movie for some DS'ing at the end of it:
http://www.reeseproductions.com/mpegs.html
While not exactly the same as what birds like the Albatross do, it uses the
same priciples. The Albatross wants to cover a distance while us RC pilots
just want speed, but both gain energy from differing wind speeds.
I've done most of my DS'ing on a ridge just south of Withcott, down the
range from Towoomba. Using a radar gun I've reached speeds of 250km but had
structural problems beyond that. Some of the guys doing 300 miles an hour
have put G meters in their gliders and recorded around 50 G's! They are
flying very strong gliders (around 3m wingspan weighing around 3-5kg.
It's pretty cool to be doing those kind of speeds on the back side of a
ridge, rolled 90deg. on it's side, in turbulence and only 10 foot off the
deck.
Anyone care to try this in a fullsize? Didn't think so. Wings fold and
wing-joiners break on the models during the bottom part of the circuit
because of the G loads they are under where as many models are lost at the
top of the curcuit from flutter. This is because of the rapid change in
airspeed as it passes through the boundary layer. The this can be as much
as 100kmh in the space of a metre or so.
Chad Nowak
From: Mike Borgelt <[EMAIL PROTECTED]>
Reply-To: "Discussion of issues relating to Soaring in
Australia."<[email protected]>
To: "Discussion of issues relating to Soaring in
Australia."<[email protected]>
Subject: Re: [Aus-soaring] NASA, a Super Blanik and Dynamic Soaring
Date: Wed, 17 Jan 2007 18:22:49 +1000
At 05:50 PM 17/01/2007, you wrote:
I've done a lot dynamic soaring with model gliders and it is a real rush.
The idea is not to build altitude, rather build energy which in turn can
then be transformed into altitude. The redcord for models is now around
360 miles an hour. VERY FAST!
Chad Nowak
Chad,
Do you have a URL where this is described?
Mike
Borgelt Instruments - manufacturers of quality soaring instruments
phone Int'l + 61 746 355784
fax Int'l + 61 746 358796
cellphone Int'l + 61 428 355784
Int'l + 61 429 355784
email: [EMAIL PROTECTED]
website: www.borgeltinstruments.com
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