Landing gear strength in DCS aircraft

[Witchking]

Hi guys,

 

I know there is not really a very objective way to do this... But I was comparing the speed/AOA/descent rate effect on landing gear strength in a bunch of aircraft the other day. My primary reason for that: Su-27 landing gear is almost made of STONE....very hard to damage. The only time I got it damaged was when I was taxi-ing too fast, drove off into the vegetation and throttled up to full... broke off side of the wing and one of the gear got bent down.

 

But overall, the F-15 gear seems like GLASS. Very very delicate...whereas, the A-10, frog gears seem relatively reasonable in their ability to take the bumpy landing. The flanker seems like stone as I said earlier. You need to do something drastic to make it bend/damage. Is this realistic? or is the flanker gear just a bit too overpowered? or is the F-15 gear too delicate? I know PFM involves actual measurements of gear cylinders/forces etc. But is this accurate observations?

 

cheers

 

V

 

 

 

 

 

 

[Esac_mirmidon]

Have you tested it on beta version?

[Witchking]

This is 1.2.11 open beta in steam from two days ago. Still at work, can't try this out in 1.2.12 yet. Perhaps later tonight or tomorrow. But I don't even know if this is a bug...more curious about differences in landing gear strength.. I can see the physical size differences...but is the F-15 glass landing gear for real? is it meant to be so delicate? whereas the flanker one is tough as nails.

[AtaliaA1]

U would think the only Difference would be whether the gear was made for landing on aircraft carriers or not.

 

Only logical reason for difference I can think of.

[Aginor]

Another one is whether an airplane is build to land on grass or bad quality air strips, then it also needs a stronger gear.

[xaoslaad]

U would think the only Difference would be whether the gear was made for landing on aircraft carriers or not.

 

Only logical reason for difference I can think of.

 

Weight of the aircraft, max munitions weight, need for take off on improvised or poorly maintained runways, carrier landings, I'm sure I'm missing many others.

 

[Witchking]

I think it is definitely because the Russian aircraft at designed to operate under tough conditions that they have such a tough landing gear. You can tell by the size comparison to the puny f-15 gear. But I remember watching the flanker documentary that the landing gear was even more strengthened for the sea flanker variant. That makes me wonder whether the current Su-27 gear implementation is a bit too overpowered.

[Fri13]

I think it is definitely because the Russian aircraft at designed to operate under tough conditions that they have such a tough landing gear. You can tell by the size comparison to the puny f-15 gear. But I remember watching the flanker documentary that the landing gear was even more strengthened for the sea flanker variant. That makes me wonder whether the current Su-27 gear implementation is a bit too overpowered.

 

The difference of strengthened landing gear in Su-27K (Su-33) is to make sure of aircraft lifetime rough landings, while Su-27S will not have so many rough landings at all.

 

Huge difference are you landing 90% of the time on carrier and 10% of the time elsewhere or landing 50% of the time on dirt airstrips and 50% of the time on airfields.

 

I have found myself that Su-25 has very easily blowing tires :megalol:.

Now with Mig-21Bis landings seems to be rough in DCS too. :pilotfly:

 

As what comes to F-15C, I remember reading that while it does have a hook, its landing gear can't withstand the carrier landings.

[GGTharos]

There's no dirt strip operation for Su-27S. Poorly maintained airfield, yes, dirt ... no.

 

The F-15C could land on a carrier but the gear isn't really built for it, it's a touch-down that's sort of close to the maximum capability of the landing gear, IIRC. Also the arresting hook is made for emergency landings on airfields, not for short-distance stops like on a carrier. It might really break :)

 

If you're breaking the F-15C landing gear on touch-down, your landing technique is poor. It can easily handle in-game the landing forces it's rated for, AFAIK (600fpm@35000lbs GW)

Edited December 3, 2014 by GGTharos

[FSKRipper]

I would think it's already corrected...

 

DCS World 1.2.12 Change Log

 

DCS Flaming Cliffs

Su-27. Flight dynamics corrected

Su-27. 3D model corrected

Su-27. Gear corrected

Su-27. Adjusted keyboard controls

Su-27. HUD indication field is corrected

Su-27. Updated campaign

Su-27. Wrong IAS indication is fixed

F-15C. Missing pylons are restored

F-15C. 3D model and collision model are corrected

[Witchking]

I already tried landing in 1.2.12. At one point, forced the aircraft off into the grass. It buckled to the side...i put throttle on max and ejected... The hey did its own thing for a while. Took a trip through the grass, tumbled a bit... The great was still resilient. It wasn't until it tumbled three times in its side and over... That the great started to fail. And all this while... The tires remained in spanking new condition. Lol. I think may be the damage model just requires a few more enhancements... But I may be wrong. Will upload screenshots when I go home