Simviation Forum - aircraft stress?

Jan 21^st, 2010 at 7:48am

rvtmendoza Offline
Colonel
Lovin' It
philippines

Gender:
Posts: 51

what does it actually do to an aircraft and what are the causes of it? sory if it is already posted. tnx in advance

Back to top

IP Logged

Reply #1 - Jan 21^st, 2010 at 8:09am

Bumkin Offline
Colonel
Cradle of Naval Aviation
Pensacola, FL

Gender:
Posts: 126

Aircraft stress occurs when the airframe or engine is operated beyond its design limits. I cannot speak to props since my background is military jets but the principals may be similar. Engine stress occurs when an engine is operated beyond design limits most commonly temperature or rpm. Results can be anywhere from a shortened life span to any number of catastophic failures. Same with the airframe with the most common stresses being exceeding the design speed or G limits. Again, evidence of these overstresses will vary from shortened life span to catastrophic structural failure which may not occur immediately. If you remember during the southern California fires a few years ago that C-130 on which the wings broke off mid span. That was probably due to a stress fracture of the main wing spar due to accumulated age and G related stress fractures.

Don't ask an aviator if he flys fighters. If he does he'll tell you, if he doesn't why embarass him.

Back to top

IP Logged

Reply #2 - Jan 21^st, 2010 at 8:10am

Daube Offline
Colonel
Alternative bloomer
Nice (FR)

Gender:
Posts: 5833

The aircraft stress is the effort that is applied on the physical structure of the aircraft.
For example, when you go too fast, or when you make an extreme manoeuver like a looping or a very tight turn, there are great efforts applied on the wings and the fuselage.
If those efforts get too strong, then the parts concerned might break, resulting in the destruction of the aircraft.

In FS, though, instead of having a realistic damage that might give you a chance to perform an emergency landing, you will just get a stupid "CRASH" or "Aircraft Damage from stress" message, and the game will stop.

The only flight sim featuring realistic stress damage is the IL-2 series, which make the experience very interesting (I had once to land with elvators partially destroyed in a dive...). I've been told that the newest WW1 simulator, called Rise of Flight, is doing that even better !

Got bloom ?
Got mountains ?
Got damage ?

Back to top

IP Logged

Reply #3 - Jan 21^st, 2010 at 10:41am

Capt.Propwash Offline
Colonel
Let's get a little mud
on the tires!
KCHS, Charleston, SC, USA

Gender:
Posts: 1958

if you have a Manual Transmission in your car.. leave it in 1st gear and try to do 60mph in 1st gear. You will blow the motor due to extreme high RPM.

same with an aircraft. run the engines at too high an RPM and you'll blow gaskets and manifolds. .. now try to fly a 737 at 500KIAS and youll rip the wings off. - BOTH not a good idea.

FS8 / 9 / X will just stop your flight and say "CRASH" or "AIRCRAFT STRESS CAUSED DAMAGE". then it will restart your flight either at the airport that you took off at, or where you where 5 min ago in flight before you "overstressed" the craft.

The thoughts and expressions contained in the post above are solely my own, and not necessarily those of Simviation.com, its Moderators, its Staff, its Members, or other guests. They can not, are not, and will not be held liable for any thoughts, or expressions, or posts that I have made, or will make in the future.

Computer Specs:: Acer Aspire Laptop..Win7 Home Premium 64-bit (sp1), AMD Athlon II X2 P340 (Dual Core) [2.2 Ghz], ATI Mobility Radeon HD 4250 (256mb), 4GB DDR3......FS9.1(sp3) / FSX (sp2)..... Ultimate Terrain X, Ground Environment X, REX, FTX ORBX PNW-PFJ-NRM-CRM, OZx, Tongass Fjords, Misty Moorings

Back to top

IP Logged

Reply #4 - Jan 21^st, 2010 at 10:42am

Ang2dogs Offline
Colonel
No matter where you go,
there you are.
black mountain hills of Dakota

Gender:
Posts: 848

Yes, it would have been nice if the stress option was abit more realistic were you get at least a chance to make a emergency landing ( or even a crash landing ) instead of the dreaded "Aircraft Damage from stress" message, and then the sim just ends Angry

! Bascilly there's really no warning when the stress option kicks in and ends the flight ( other than the overspeed warning), and most of the time it seems to go off for no apparant reason (so because of this I shut it off, lost to many flighthours because of ???? who knows ). It would be cool if the stress option worked in away like landing gear collapsing if you land to hard, or damage happening from flying thru bad weather. On the wish list for the next sim ( who ever makes it ) a maintanance option would be nice, where if you don't take care of your aircraft, stress will hurt you. usally I just play around with the failure option to keep me alert, and have the stress option turned off.

Back to top

IP Logged

Reply #5 - Jan 21^st, 2010 at 10:57am

Capt.Propwash Offline
Colonel
Let's get a little mud
on the tires!
KCHS, Charleston, SC, USA

Gender:
Posts: 1958

there is a program called NICK'S MASSIVE CRASH FINAL that if you have "visual_damage=1" in the aircraft.cfg under each [fltsim?] section (and you have an FS9 adapted craft) if you fly through a building, then your wings, elevators, ailerons, etc would rip off and if the damage was not severe enough then you MIGHT be able to control your landing.... but you WILL still crash.

The thoughts and expressions contained in the post above are solely my own, and not necessarily those of Simviation.com, its Moderators, its Staff, its Members, or other guests. They can not, are not, and will not be held liable for any thoughts, or expressions, or posts that I have made, or will make in the future.

Computer Specs:: Acer Aspire Laptop..Win7 Home Premium 64-bit (sp1), AMD Athlon II X2 P340 (Dual Core) [2.2 Ghz], ATI Mobility Radeon HD 4250 (256mb), 4GB DDR3......FS9.1(sp3) / FSX (sp2)..... Ultimate Terrain X, Ground Environment X, REX, FTX ORBX PNW-PFJ-NRM-CRM, OZx, Tongass Fjords, Misty Moorings

Back to top

IP Logged

Reply #6 - Jan 22^nd, 2010 at 6:56pm

rvtmendoza Offline
Colonel
Lovin' It
philippines

Gender:
Posts: 51

thanks for the replies guys, they were great. cheers

Back to top

IP Logged

	Search the archive: