A aviation & planes forum. AviationBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » AviationBanter forum » rec.aviation newsgroups » Soaring
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Speed triangle on ridge



 
 
Thread Tools Display Modes
  #1  
Old November 17th 13, 08:39 PM posted to rec.aviation.soaring
WAVEGURU
external usenet poster
 
Posts: 290
Default Speed triangle on ridge

All turnpoints are on the windward side of a ridge. I would probably mark a thermal coming off the ridge near the start, start the task and go back to the thermal and get high enough to make the second turn. ( in a perfect world ) These are bluffs with flat tops so not a lot of sink downwind of the face.
  #2  
Old November 17th 13, 10:56 PM posted to rec.aviation.soaring
[email protected]
external usenet poster
 
Posts: 192
Default Speed triangle on ridge

I'm not totally clear on the geometry, but if you are trying to get to a ridge it is perfectly classic final glide MacCready theory. Set a ridgetop point as your final glide point, then fly to it as if final glide. It is much faster to climb higher in a strong thermal and bomb to the ridge than it is to stop soon and go to the ridge slow. For example, if your best glide is 53 kts, and you're in a 53 kt wind but have 10 kt thermals, going higher and faster will get you there, flying 53 kts will not. Same downwind.

John Cochrane
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Taxi calculator? (propeller type and speed, aircraft weight, taxi speed) John Doe[_4_] General Aviation 0 February 3rd 11 10:55 PM
FAI triangle records speed question Bruno Soaring 1 June 6th 09 05:05 PM
500 km Triangle at 306 km/hr in Argentina Paul Remde Soaring 36 January 3rd 07 08:48 PM
A fine ridge day in PA - the Ridge Soaring Irregulars ride again QT Soaring 0 April 6th 06 04:01 PM
FAI triangle in SEE YOU Paul Feltz Soaring 2 July 7th 04 07:46 AM


All times are GMT +1. The time now is 09:47 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 AviationBanter.
The comments are property of their posters.