Go Back  PPRuNe Forums > Aircrew Forums > Military Aviation
Reload this Page >

E3 Sentry Question

Wikiposts
Search
Military Aviation A forum for the professionals who fly military hardware. Also for the backroom boys and girls who support the flying and maintain the equipment, and without whom nothing would ever leave the ground. All armies, navies and air forces of the world equally welcome here.

E3 Sentry Question

Thread Tools
 
Search this Thread
 
Old 16th Dec 2011, 13:09
  #21 (permalink)  
 
Join Date: Nov 2011
Location: Southern Europe
Posts: 5,335
Received 18 Likes on 7 Posts
Change of heart. Hanging coat back up. I like my answer better. At least we could understand it. What was the middle bit again, Wensleydale?
Courtney Mil is offline  
Old 16th Dec 2011, 15:00
  #22 (permalink)  
 
Join Date: Jun 2008
Location: London
Age: 67
Posts: 498
Likes: 0
Received 36 Likes on 13 Posts
I think we all understand that groundspeed will change with relative wind direction. The autopilot will try keep you on the same groundtrack in the orbit and so will alter the AOB to achieve that, albeit we are only talking small angles here. When the AOB is higher, more of the beam is being pointed at the ground (= clutter) and so you might occasionally want to have the higher AOB, more cluttered picture occur at (eg) the west side of the orbit rather than the east so that the best picture is available at the range from the orbit that is most suitable for the trade, which therefore means a decision on left or right! Or maybe use one of the other pretty patterns available through the GINS. Either way, it is not going to spill the coffee unless you get the airspeed badly wrong, when coffee spills are the least of your problems (pace Air France).

Also, the QFI/staff chap was right. You shouldn't need a met lecture to remind you that the wind blows up there, which really would be sad...
Fortissimo is offline  
Old 16th Dec 2011, 16:38
  #23 (permalink)  
 
Join Date: Apr 2008
Location: The Whyte House
Age: 95
Posts: 1,966
Likes: 0
Received 0 Likes on 0 Posts
Erm, I think I may have f***ed up here. I don't actually know the reason, I was hoping my answer would have been misleading, but believable. A real bu**er if I stumbled across one of the real reasons by mistake!

I'll get my coat...
Sorry, I'm a bit slow on the uptake today. Normal humour detection service will be resumed as soon as possible.
Willard Whyte is offline  
Old 16th Dec 2011, 21:17
  #24 (permalink)  
 
Join Date: Mar 2008
Location: Bomber County
Age: 73
Posts: 249
Received 12 Likes on 6 Posts
Of course, a clockwise orbit produces several extra radar scans an hour.
I reckon 4 more per hour for typical orbits
radar101 is online now  
Old 17th Dec 2011, 10:54
  #25 (permalink)  
 
Join Date: Nov 2011
Location: Southern Europe
Posts: 5,335
Received 18 Likes on 7 Posts
Willard, that's always the risk I run when I try to be a smart arse!
Courtney Mil is offline  

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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.