Military FAQ thread

[Gollevainen]

Re: Military FAQ

Well i haven't awnsered to it simply becouse i don't know the awnser...

are the 37mm automatic aaa guns on board the luhus, jingweis, and shengzhen controlled entirely by radar and optical director, or is there a staion in the ship where a crew can control them?

But If there is a optical director, i assume that there is some sort of dedicated control station. If it is so, then in theory the CIWS system can be replaced by the newer system...once again in theory. It would propaply mean in practise to change the whole system, along it's computers and assosiated stuff.

In my obinion, best way to increase the effectiviness of the chinese automatic 37mm guns is to adapt them to use AHEAD type of rounds. Tough i'm not sure if china has filed yet anything like it...???

 

[MIGleader]

Re: Military FAQ

i dont think china has any ahead style round yet. the russian bk-27 tank round, however, does use ahead technology similar to franch oerlikon rounds. but i dont know if china can shrink these rounds so they can work in a "millenium gun".

but the 76as already can use HE-FRAG rounds, which should be farily effective against aircraft. what im looking for is a way to improve the rate of fire some how, as each barrel pumps out only 200r/p/m. thats two barrels a turret and four turrets=1600r/p/m for the entire ship, which a third of what a single ak-630 can fire.

but thank you for your reply.

 

[Obcession]

Re: Military FAQ

Thanks Goll, I think I get it now, so the standards for these ships are only based in one particular navy or "side" (as in East or West), and different navies have different standards for them, cool.

 

[ahho]

Re: Military FAQ

What does aerodynamicly unstable mean (i am refering to the j-10)

 

[swimmerXC]

Re: Military FAQ

What does aerodynamicly unstable mean (i am refering to the j-10)

It's made that ways so it can have super-manoeuvrability, if the FBW went down on the plane, it would crash....
Basically it's
aerodynamically unstable+FBW=super-manoeuvrability
It basically will just spin around and crash and might not fly at all
Well I guess G can take a stab at this.... I just remembered watching a video about the X-29 and they explained it there
here another stab:
It's basically making the plane so unstable that a slight movement will crash it, but IF the movement can be controlled in a controlled manner (by FBW) then that slight movement can result in super-manoeuvrability

 

[MIGleader]

Re: Military FAQ

What does aerodynamicly unstable mean (i am refering to the j-10)

it means the canards and wing of the j-10 act to divert the airflow around the aircraft in several differant direction. it also involves the three aicraft dimensions of motion by air, affecting the movement of the planes control surfaces.

if you want it in really acientific terms:

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"The aerodynamic forces on an oscillating airfoil or airfoil-aileron combination of three independent degrees of freedom have been determined. The problem resolves itself into the solution of certain definite integrals, which have been identified as Bessel functions of the first and second kind and of zero and first order. The theory, being based on potential flow and the Kutta condition, is fundamentally equivalent to the conventional wing-section theory relating to the steady case. The air forces being known, the mechanism of aerodynamic instability has been analyzed in detail. An exact solution, involving potential flow and the adoption of the Kutta condition, has been analyzed in detail. An exact solution, involving potential flow and the adoption of the Kutta condition, has been arrived at. The solution is of a simple form and is expressed by means of an auxiliary parameter K."

but i dont expect many people (including myself) to understand this

aerodynamic instability will create great manuverability, but requires advanced fbw to control

 

[ahho]

Re: Military FAQ

another quick question, is canada part of the jsf program, if they are will it be stealth or non-stealth?? If it is not stealth, what is the point of getting it?

 

[PiSigma]

Re: Military FAQ

canada is cooperating in the JSF program, but not as involved as Britian. we just pay for some research, and gets to buy it later on. JSF is suppose to have stealth features, but not as stealthy as F-22 to save some dollars.

 

[ahho]

Re: Military FAQ

canada is cooperating in the JSF program, but not as involved as Britian. we just pay for some research, and gets to buy it later on. JSF is suppose to have stealth features, but not as stealthy as F-22 to save some dollars.

the thing is would USA sell stealthy JSF to other nation eventhough it is not as stealthy as f-22

 

[bd popeye]

Re: Military FAQ

the thing is would USA sell stealthy JSF to other nation eventhough it is not as stealthy as f-22

I know the UK is planning on buying some. And expect the US to export a model if the USAF cancels it's order.