Cockpit shake while going at high speed

[Rlaxoxo]

Anyone else have this?

 

My cockpit feels wobbly when going like mach 1.8+ faster, not really that exact number but ya

 

Feels odd for some reason

 

Is this realistic or?

[cauldron]

At low altitudes+high speeds, NOE with low wing loading planes you should get a lot of .5g buffets, even for a delta wing. At higher altitudes it shouldn't. its a modern fighter plane.

 

M2000 for its time was unique in that it had low wing loading but good high speed characteristics inherited from the delta, but also good turn rates because of its unstable condition center of lift vs CG. Its vortex generators and leading edge slats controlled by the FBW allowed it to overcome the shortcomings of the traditional deltas (ie. mirage lll's etc.) and have excellent sustained turn rates, though the F-16 was slightly better at that.

 

These are the reasons this plane has such a following. It was, along with the F-16, the first true jet fighters using FBW to control an unstable center of lift configuration.

 

For the same reasons new planes also follow similar design lines - Gripen, Rafale, Typhoon.

 

Historically matched fighters only the F-16 could match its maneuverability, each holding advantages over the other. F-16 had higher Specific excess thrust especially at low altitude, and slightly better sustained turn rate, also with an emphasis at lower altitudes, as well as multi-role abilities. The M2000 held better roll rates, better initial roll, better instantaneous turn rate and better high speed handling, lower drag coef.'s etc. & higher top speed.

 

So, AFAIK to answer your question no i don't believe such a plane would suffer such buffets IRL especially over MACH 1 and well below its top speed of M2.35 ish. [1] unless you were flying low altitudes and passing thru the turbulent air near the ground at M1.8 - i can't see it happening.

 

Try to find out under what conditions it is happening and report it.:smartass:

 

[1]: Bill Gunston, Mike Spike: Modern Air combat 0-517-412659 "...High, clean, brief dash speed M2.35; sustained M2.2; SL M1.2"

Edited January 27, 2016 by cauldron
biblio

[Rlaxoxo]

Just fly at around 40k feet at and you should notice it it's not huge but my camera gets wobbly in the cockpit and I notice small shakes like it's trying to ressist something

[flyingscotsman]

Low level I would expect buffeting, low level work is hard on the aircraft and the crews

[Voodooflies]

Just fly at around 40k feet at and you should notice it it's not huge but my camera gets wobbly in the cockpit and I notice small shakes like it's trying to ressist something

 

That happens when you pass the speed of sound... In the sim when flying RAZBAM's M2000C it occurs between mach 0.97 and mach 1.0.

[cauldron]

That happens when you pass the speed of sound... In the sim when flying RAZBAM's M2000C it occurs between mach 0.97 and mach 1.0.

 

That may be true of the century era of fighters, but modern planes pass thru transonic without a single buffet. You need to look at the gauges to realize you've gone supersonic. It has to be a bug.

[Rlaxoxo]

That happens when you pass the speed of sound... In the sim when flying RAZBAM's M2000C it occurs between mach 0.97 and mach 1.0.

 

I'm talking about mach 1.5+

[Nealius]

Shaking also occurs with 2 wing tanks between 0.94 and 0.96 mach at altitude.

[Rlaxoxo]

Shaking also occurs with 2 wing tanks between 0.94 and 0.96 mach at altitude.

 

Yes that's understandable