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

(software-limited) top speed

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.

(software-limited) top speed

Old 2nd Sep 2022, 12:34
  #1 (permalink)  
Thread Starter
 
Join Date: Apr 2007
Location: moraira,spain-Norfolk, UK
Age: 80
Posts: 389
Likes: 0
Received 0 Likes on 0 Posts
(software-limited) top speed

Came across the term in 'Navy lookout' online.
Applies to F35 aircraft.
Anyone know what that means ?
esa-aardvark is offline  
Old 2nd Sep 2022, 14:24
  #2 (permalink)  
 
Join Date: May 1999
Location: Quite near 'An aerodrome somewhere in England'
Posts: 26,251
Likes: 0
Received 0 Likes on 0 Posts
Probably something like the software speed limiter in my car? The car is capable of 282 kph, but is electronically limited to 250 kph.
BEagle is online now  
Old 2nd Sep 2022, 15:29
  #3 (permalink)  
 
Join Date: Apr 2006
Location: Portsmouth
Posts: 301
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by esa-aardvark View Post
Came across the term in 'Navy lookout' online.
Applies to F35 aircraft.
Anyone know what that means ?
Yes. Pertains to specific evolutions.
Not_a_boffin is offline  
Old 3rd Sep 2022, 15:27
  #4 (permalink)  
 
Join Date: Sep 2004
Location: Canada
Posts: 1,390
Received 11 Likes on 7 Posts
Don’t some aircraft also have G limiting to avoid bending the airframe and annoying the powers that be. “Yes he was shot down but no aircraft limits were exceeded due to our DGTDDT software. (Don’t Go There, Don’t Do That)”.
albatross is offline  
Old 4th Sep 2022, 02:36
  #5 (permalink)  
 
Join Date: Mar 2005
Location: N/A
Posts: 4,755
Likes: 0
Received 2 Likes on 2 Posts
Don’t some aircraft also have G limiting to avoid bending the airframe
Yes, chap in Germany pulled the wings off an F-15 while giving an impromptu air display, following refueling had forgotten to tell the computer he had full drop tanks, computer then didn't give him the correct 'g' limit warning tone in the headset, in his haste to get going had also forgotten to strap in so no successful ejection.
megan is online now  
Old 4th Sep 2022, 07:18
  #6 (permalink)  
 
Join Date: Sep 2009
Location: UK
Posts: 10,141
Likes: 0
Received 0 Likes on 0 Posts
I also have one of these in my car, it's called the wife.
Kiltrash is offline  
Old 4th Sep 2022, 20:24
  #7 (permalink)  
 
Join Date: Mar 2000
Location: England
Posts: 644
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by megan View Post
Yes, chap in Germany pulled the wings off an F-15 while giving an impromptu air display, following refueling had forgotten to tell the computer he had full drop tanks, computer then didn't give him the correct 'g' limit warning tone in the headset, in his haste to get going had also forgotten to strap in so no successful ejection.
Source? Never heard of this and my BS meter is pegged.
Ewan Whosearmy is offline  
Old 5th Sep 2022, 01:03
  #8 (permalink)  
 
Join Date: Mar 2005
Location: N/A
Posts: 4,755
Likes: 0
Received 2 Likes on 2 Posts
Source? Never heard of this and my BS meter is pegged
Was cited in a human factors book purchased some two decades ago, since given away, author I forget, but was a highly respected individual within the aviation community, pilot was of little experience making a refueling stop and had been asked by the ground crew to do a beat up upon departure. You're quite entitled to say the author was talking crap, not that I'm misreporting what was written.
megan is online now  
Old 5th Sep 2022, 12:40
  #9 (permalink)  
 
Join Date: Mar 2000
Location: England
Posts: 644
Likes: 0
Received 0 Likes on 0 Posts
Megan

I owe you an apology. It did happen - Alaska, not Germany.

Accident McDonnell Douglas F-15A Eagle 74-0087, 24 Jun 1985 (aviation-safety.net)

Last edited by Ewan Whosearmy; 5th Sep 2022 at 13:21.
Ewan Whosearmy is offline  
Old 5th Sep 2022, 14:51
  #10 (permalink)  
 
Join Date: Oct 1999
Location: Den Haag/Constanta
Age: 56
Posts: 5,405
Received 8 Likes on 8 Posts
Originally Posted by Ewan Whosearmy View Post
Megan

I owe you an apology. It did happen - Alaska, not Germany.

Accident McDonnell Douglas F-15A Eagle 74-0087, 24 Jun 1985 (aviation-safety.net)
The F-15A instantly and violently broke apart, exploded into flames
I think this tends to negate the suggestion about not strapping in though. Sounds reminiscent of the F-14 fly by
212man is offline  
Old 7th Sep 2022, 16:43
  #11 (permalink)  
 
Join Date: Aug 2007
Location: virginia, USA
Age: 55
Posts: 1,004
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Kiltrash View Post
I also have one of these in my car, it's called the wife.
My WIFE unit is also programmed to advise me of vehicles braking ahead, optimal windscreen wiper rate, appropriate following distance and route selection. It really is a multi-faceted device, with features introduced long before so called "smart-car" technology
sandiego89 is offline  
Old 7th Sep 2022, 17:02
  #12 (permalink)  
 
Join Date: Sep 2015
Location: London
Posts: 488
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by sandiego89 View Post
My WIFE unit is also programmed to advise me of vehicles braking ahead, optimal windscreen wiper rate, appropriate following distance and route selection. It really is a multi-faceted device, with features introduced long before so called "smart-car" technology
Mine was uninstalled and fitted to another model, which was the best outcome for all concerned. Its ASI was out of calibration, the compass had failed completely and the map display was stuck in "heading up" mode.
pasta is offline  
Old 8th Sep 2022, 13:15
  #13 (permalink)  
 
Join Date: Aug 2000
Location: SW England
Age: 68
Posts: 1,387
Received 1 Like on 1 Post
Please PLEASE can PPRuNe have a 'like' button for the above posts? Pretty please?


The issue has been requested to IB many, many times.

We live in hope 😇

Senior Pilot

Last edited by Thud_and_Blunder; 9th Sep 2022 at 13:05. Reason: edited to add: Good on you, SP! :)
Thud_and_Blunder is online now  
Old 8th Sep 2022, 14:29
  #14 (permalink)  
 
Join Date: Sep 2004
Location: Canada
Posts: 1,390
Received 11 Likes on 7 Posts
Originally Posted by pasta View Post
Mine was uninstalled and fitted to another model, which was the best outcome for all concerned. Its ASI was out of calibration, the compass had failed completely and the map display was stuck in "heading up" mode.
We would sometimes swap parts to install them on another aircraft in order to dispatch an aircraft on a contract with sufficient hours remaining to complete the contract without having to ship and install parts in the field on the other side of the world. We would fill out the tech log/ parts tag “Reason for removal” as “Removed for convenience”. Sounds like what you did. Good forward planning!
albatross 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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright © 2022 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.