Previous Thread
Next Thread
Print Thread
Rate This Thread
Hop To
Page 3 of 3 1 2 3
#4444446 - 10/19/18 03:18 PM Re: My guess: F14 will be delayed to late january so ED can keep selling this retarded yak cropduster. [Re: xXNightEagleXx]  
Joined: Mar 2002
Posts: 14,243
Tom_Weiss Offline
>>> P3Dv4+Il-2 = !!!
Tom_Weiss  Offline
>>> P3Dv4+Il-2 = !!!
Veteran

Joined: Mar 2002
Posts: 14,243
3rd Planet, Sun
Originally Posted by xXNightEagleXx


Can you turn it off and fully control it?


you can't turn it off as there is no FBW mechanical backup in combat aircraft -

why you can't turn it off in case of failure ? no need, there is triple hardware redundancy.

the reason why combat damage can't knock out FBW is that in order to do that, the damage has to be so extensive that the aircraft is no longer flyable and the pilot has had to eject.

Inline advert (2nd and 3rd post)

#4444452 - 10/19/18 03:50 PM Re: My guess: F14 will be delayed to late january so ED can keep selling this retarded yak cropduster. [Re: Tom_Weiss]  
Joined: Apr 2013
Posts: 277
xXNightEagleXx Offline
Member
xXNightEagleXx  Offline
Member

Joined: Apr 2013
Posts: 277
Originally Posted by Tom_Weiss
Originally Posted by xXNightEagleXx


Can you turn it off and fully control it?


you can't turn it off as there is no FBW mechanical backup in combat aircraft -

why you can't turn it off in case of failure ? no need, there is triple hardware redundancy.

the reason why combat damage can't knock out FBW is that in order to do that, the damage has to be so extensive that the aircraft is no longer flyable and the pilot has had to eject.



Thank you very much Tom, indeed i was just about to ask what would happen in case of damage..... Are these backup hardware allocated in different places?

#4444460 - 10/19/18 04:17 PM Re: My guess: F14 will be delayed to late january so ED can keep selling this retarded yak cropduster. [Re: straycat]  
Joined: Mar 2002
Posts: 14,243
Tom_Weiss Offline
>>> P3Dv4+Il-2 = !!!
Tom_Weiss  Offline
>>> P3Dv4+Il-2 = !!!
Veteran

Joined: Mar 2002
Posts: 14,243
3rd Planet, Sun
If I recall correctly - the computer hardware is in one place.

#4444487 - 10/19/18 07:14 PM Re: My guess: F14 will be delayed to late january so ED can keep selling this retarded yak cropduster. [Re: Tom_Weiss]  
Joined: Apr 2013
Posts: 277
xXNightEagleXx Offline
Member
xXNightEagleXx  Offline
Member

Joined: Apr 2013
Posts: 277
Originally Posted by Tom_Weiss
If I recall correctly - the computer hardware is in one place.


At this point i would like to know whether the F22 or F35 are like this. I mean, has this became the standard for american Jets?

#4444490 - 10/19/18 07:39 PM Re: My guess: F14 will be delayed to late january so ED can keep selling this retarded yak cropduster. [Re: straycat]  
Joined: Mar 2002
Posts: 14,243
Tom_Weiss Offline
>>> P3Dv4+Il-2 = !!!
Tom_Weiss  Offline
>>> P3Dv4+Il-2 = !!!
Veteran

Joined: Mar 2002
Posts: 14,243
3rd Planet, Sun
they all are FBW and triple redundancy is I guess common to all of them

in commercial aircraft, FBW is there to make money for the airline by making aircraft more profitable by flying further and being fuel efficient

while combat aircraft are made inherently unstable to make them more maneuverable, that is why "the computer (FBW) is flying the aircraft" which is sort of true, the computer translates what the pilot wants into a flyable command.

#4444491 - 10/19/18 07:43 PM Re: My guess: F14 will be delayed to late january so ED can keep selling this retarded yak cropduster. [Re: xXNightEagleXx]  
Joined: Nov 2005
Posts: 2,158
MigBuster Offline
Member
MigBuster  Offline
Member

Joined: Nov 2005
Posts: 2,158
UK
Originally Posted by xXNightEagleXx
Originally Posted by Tom_Weiss
If I recall correctly - the computer hardware is in one place.


At this point i would like to know whether the F22 or F35 are like this. I mean, has this became the standard for american Jets?



As far as I know they are both like this yes.

One thing I would add is that you can see in NATOPS that the FA-18ABCD certainly has or did have a physical mechanical backup to its horizontal stabs for pitch and roll control in the event of certain FCS failure. The FA-18EF which is very different to the legacy only has FBW however no FA-18s were unstable to the extent the F-16 was.

With the F-16 there is no point having a physical mechanical backup because the pilot still wouldn't be able to control it..............and it would appear the F-22 and 35 are more like the F-16 in that regard....certainly the F-35 is.


'Crashing and Burning since 1987'
#4444554 - 10/20/18 05:07 AM Re: My guess: F14 will be delayed to late january so ED can keep selling this retarded yak cropduster. [Re: straycat]  
Joined: Oct 2009
Posts: 1,598
Frederf Offline
Member
Frederf  Offline
Member

Joined: Oct 2009
Posts: 1,598
F-16 and F-18 are both quadruple redundant channel FCS. F-18 has spaced linkages plus another direct connection on top of that. Both have slightly inferior digital FCS programs that back up their analog ones. I don't know much about the F-15/F-14 generation but it's along the same lines of design. Complaints about these new fangled computery whiz jets have been out of date since 1979 or so. I mean how much of an oooooooollllldddd maaaaannnn do you have to be to still be wringing that bell? FBW was new, then disco happened. Give it up, FBW won. It's better. Yes F-22 and F-35 are FBW. My understanding is F-35 is the first "open cycle" FCS which doesn't do canned control response but actually looks at the feedback in real time. F-35 also has electro-hydraulic actuators so everything's electric until the last foot where it becomes hydraulic so there aren't fluid lines running around everywhere.

#4445522 - 10/26/18 02:09 PM Re: My guess: F14 will be delayed to late january so ED can keep selling this retarded yak cropduster. [Re: straycat]  
Joined: Oct 1999
Posts: 1,271
specialksl Offline
Member
specialksl  Offline
Member

Joined: Oct 1999
Posts: 1,271
Baltimore, MD USA
So basically all an adversary needs to do is develop an EMP weapon of some sort, aim it at any top of the line US fighter and it will fall out of the sky.


Main PC: ASUS P8Z77 - Intel I7 3770K OC to 4.4GHZ - Thermaltake Water2.0 Pro
GeForce GTX 970
16 Gig G.Skill Ares DDR3
Samsung EVO SSD 500GB
Plenty of storage
Windows 7 64bit
ASUS PB278Q @ 2560x1440

SIMPIT: ASUS Prime Z370-A, I7 8700K, H80i-V2 watercooler
ASUS ROG STRIX RTX 2080
Windows 10 64bit
32GB 2400 DDR4 memory
Thrustmaster Warthog - 2-TM MFDs
Saitek Combat Rudder Pedals,4 -FIPs, TPM, Radio, Multipanel, Switch Panel, Pro Flight Yoke
3 - 32" Samsung monitors-1920x1080, 22" Samsung monitor
#4445528 - 10/26/18 02:43 PM Re: My guess: F14 will be delayed to late january so ED can keep selling this retarded yak cropduster. [Re: straycat]  
Joined: Mar 2002
Posts: 14,243
Tom_Weiss Offline
>>> P3Dv4+Il-2 = !!!
Tom_Weiss  Offline
>>> P3Dv4+Il-2 = !!!
Veteran

Joined: Mar 2002
Posts: 14,243
3rd Planet, Sun
all modern combat aircraft are EMP hardened.

#4445538 - 10/26/18 03:26 PM Re: My guess: F14 will be delayed to late january so ED can keep selling this retarded yak cropduster. [Re: specialksl]  
Joined: Dec 2003
Posts: 5,938
GrayGhost Offline
Hotshot
GrayGhost  Offline
Hotshot

Joined: Dec 2003
Posts: 5,938
If by that you mean 'anyone's top of the line fighter' rather than 'US', then sure. But as mentioned, there is EMP hardening in play. Those things may be sitting inside their own little faraday cages.

Originally Posted by specialksl
So basically all an adversary needs to do is develop an EMP weapon of some sort, aim it at any top of the line US fighter and it will fall out of the sky.


--
44th VFW
#4445647 - 10/27/18 03:35 AM Re: My guess: F14 will be delayed to late january so ED can keep selling this retarded yak cropduster. [Re: straycat]  
Joined: Apr 2006
Posts: 1,962
Vitesse Offline
Member
Vitesse  Offline
Member

Joined: Apr 2006
Posts: 1,962
Devon UK
I used to run qualification tests on electronic components - radiation hardening for military grade items was a standard thing.

#4446286 - 10/31/18 04:22 AM Re: My guess: F14 will be delayed to late january so ED can keep selling this retarded yak cropduster. [Re: straycat]  
Joined: Dec 2000
Posts: 4,076
Nodak01 Offline
Senior Member
Nodak01  Offline
Senior Member

Joined: Dec 2000
Posts: 4,076
coyote country
The newest gen has hot swappable modules, the radio module can become the FCS in a failure, so one hit isn't going to take it out quite so easy.

#4446328 - 10/31/18 01:19 PM Re: My guess: F14 will be delayed to late january so ED can keep selling this retarded yak cropduster. [Re: straycat]  
Joined: Dec 2003
Posts: 5,938
GrayGhost Offline
Hotshot
GrayGhost  Offline
Hotshot

Joined: Dec 2003
Posts: 5,938
No it can't. Software defined radio allows various RF functions to be performed by different RF components, but your radio component still isn't going to become a RADAR or an FCS. The FCS is already quadruple-redundant anyway.


--
44th VFW
Page 3 of 3 1 2 3

Moderated by  Force10, RacerGT 

Quick Search
Recent Articles
Support SimHQ

If you shop on Amazon use this Amazon link to support SimHQ
.
Social


Recent Topics
IJN Kaga found.
by NH2112. 10/19/19 10:32 PM
Grouch (Joker Parady)
by Arthonon. 10/19/19 02:19 PM
Nike vs B-17
by KraziKanuK. 10/18/19 08:30 PM
Grouch
by Chaz. 10/18/19 01:49 PM
How to pi$$ off Londoners...
by Chucky. 10/17/19 12:16 PM
Video game map size comparison
by DM. 10/17/19 09:45 AM
Happy Thanksgiving
by No105_Archie. 10/13/19 05:15 PM
Happy Birthday US Navy
by oldgrognard. 10/13/19 04:31 PM
American Civil War photos
by KraziKanuK. 10/12/19 04:18 AM
Copyright 1997-2016, SimHQ Inc. All Rights Reserved.

Powered by UBB.threads™ PHP Forum Software 7.6.0