Page 23 – Key Publishing

Sign

Forum Replies Created

Viewing 15 posts - 331 through 345 (of 1,400 total)

← 1 2 3 … 22 23 24 … 92 93 94 →

Author

Posts
November 20, 2011 at 5:46 am in reply to: super cruise info #2324509

Sign
Participant

Y tread is better than X thread in my opinion 😀

November 18, 2011 at 8:55 pm in reply to: super cruise info #2325263

Sign
Participant

But most important is what the pilots had for breakfast.. if its bacon & egg, forget it, no supercriuse what so ever:D

beans is the best, alot of extra gas.

November 18, 2011 at 8:54 pm in reply to: super cruise info #2325266

Sign
Participant

And the planet it is being flown on

Interesting notation 😉

November 8, 2011 at 10:24 pm in reply to: Nice MMRCA News and Discussion 9 #2370035

Sign
Participant

Yes. But as I said, Gripen etc. can guide missiles with their radars switched off.

Western designers all seem to have realised that one of the advantages of active radar missiles is that the launching aircraft doesn’t need to use a radar, if it can get targeting information from elsewhere, so provided their aircraft with separate data channels for communication with AAMs. Gripen makes a big thing of it. And, of course, it works equally well for IR homing missiles.

actually it can deliver the missile and let another plane midcourse guide it throu the missile link, with or without its own radar(AWACS). the missle delivering plane never needs to emit anything.
or link up to four passive radars (triangulation) for guide the missile without any active radar.

November 6, 2011 at 10:44 am in reply to: Nice MMRCA News and Discussion 9 #2372175

Sign
Participant

Lifting the arms embargo doesn’t mean that they would get anything they want. And China has been aiding the US for many years now financially.

no, but still, giving China gov, any means what so ever, is bad for our common future.

November 4, 2011 at 3:35 pm in reply to: Nice MMRCA News and Discussion 9 #2373293

Sign
Participant

They might as well have issued a statement saying “We have nothing new to say.”

😀

November 3, 2011 at 6:29 pm in reply to: European LO Fighter still with vertical tail…. #2373652

Sign
Participant

So basically an F-135 or JSF119 (predecessor to F-135)…

yes, but they are 2 completely different animals in preformance.
F119 hot, low bypass, and high speed
F135 less hot, high bypass lower speed

October 31, 2011 at 6:55 pm in reply to: European LO Fighter still with vertical tail…. #2374953

Sign
Participant

So what the problem with a hotter F110-GE-xxx?
To me it seems best price-preformance after the probably more expensive and more exportrestricted F119.

October 31, 2011 at 3:49 pm in reply to: European LO Fighter still with vertical tail…. #2375035

Sign
Participant

Just get a PW F135 and be done with it.

Cheers

high bypass, optimised for subsonic. cranked F119 would be better.

October 30, 2011 at 11:00 pm in reply to: European LO Fighter still with vertical tail…. #2375332

Sign
Participant

Neat looking machine, if it will be proceeded with. My immediate question is, what engine in the 170KN class will power this aircraft ? Will it be just like the long series of SAAB fighters , a licensed foreign engine adapted/ improved as needed, and if so, which one?

A hotter F110-GE-xxx seems viable?
http://www.globalsecurity.org/military/systems/aircraft/systems/f110.htm

October 30, 2011 at 6:09 pm in reply to: European LO Fighter still with vertical tail…. #2375759

Sign
Participant

The single engined version of the SAAB “fighter for 2020” is a 10+ ton aircraft, slightly longer than a typhoon, with a 17 ton thrust engine and a wing the size of a Eurofighter.

thats news to me, any source?

October 30, 2011 at 6:06 pm in reply to: The AESA radar retrofit market #2375764

Sign
Participant

The cost of retrofit also depends upon the type of cooling available. Many modern AESAs require liquid cooling because forced air cooling cannot remove the heat fast enough to keep the tiles from overheating. Adding a liquid cooling loop to F-16 or a MiG would be another impact to complexity, weight, power and volume.

The radar itself have normally a liquid coolingsystem but it needs the heat heatexchanged with a external system the external system can be ither “direct” air or liquid.

October 30, 2011 at 5:21 pm in reply to: The AESA radar retrofit market #2375785

Sign
Participant

Yes, providing sufficient power and cooling to operate the AESA can be a problem.

Another potential concern is the ability to handle and display the AESA’s data output. Ancient 8-bit computers, display processors, multi-function displays and HUDs are not up to the task unless the AESA systems’ data rate and message format is dialed back to match 1970s technology.

next gen AESA would have better efficencies, the power itself should not be a big problem, and can be regulated in radarmodes. the cooling of an AESA, is often a “internal problem” in an X-band antenna due to the small antenna size.

October 30, 2011 at 4:47 pm in reply to: The AESA radar retrofit market #2375816

Sign
Participant

And scanning time. PESA make shorter time to scan the same volume as AESA.
Dunno why this is, could be the signal prossessing taking shorter time due to AESA have higher scan resolution, IMO more signal/data for prossessing..?

Yes, a “pencil wide” radar lobe resolution needs more time to travel from point A to B. to scan the same volume and more pulses to reach B.

October 30, 2011 at 4:38 pm in reply to: The AESA radar retrofit market #2375827

Sign
Participant

One constrain would be insufficiant power to operate new AESA radars.

Also weight.
An AESA weight much more in the frontend.
Author

Posts

Viewing 15 posts - 331 through 345 (of 1,400 total)

← 1 2 3 … 22 23 24 … 92 93 94 →