Page 19 – Key Publishing

emile

Forum Replies Created

Viewing 15 posts - 271 through 285 (of 525 total)

← 1 2 3 … 18 19 20 … 33 34 35 →

Author

Posts
November 25, 2011 at 3:43 pm in reply to: Chinese Air Power Thread 16 #2318169

emile
Participant

everyone twist their wings. from F22 to Cessena 172. 🙂

ideally you want to stall the inboards first like the old spitfire.
even if you stall, you want to retain the aileron effectiveness.
but, spanwise flow , and etc etc, makes the wing outer span stalls early usually .

having a twisted wing means your tip aoa is at a lower angle relative to the inboard… lower aoa/lower loading/further away from stall. and if you stall ailerons (which are usually located at outer spans still have effectiveness)

having a wing leading edge twists, or actuated slats outboard is the same idea.
if one is venturing enough, you can move the ailerons to unload when aoa gets high enough. 😉

Only me can see through your misguiding to the others.
We all know what is the exact meaning of Twist here from Haavarla:cool:
You were playing him or you are not able to explain…….:D

November 25, 2011 at 2:46 am in reply to: Soviet fighters against P-51 #1084381

emile
Participant

Yes, perhaps no such long combat radius but could be superior on other items like roll rate, climb rate or turn rate?

November 24, 2011 at 11:23 am in reply to: Pak-Fa Thread episode 19 #2319094

emile
Participant

No Stealthy Engine nozzles, No Single piece canopy. Boring.

Knowing rectangular nozzle only or focusing merely on single piece canopy are boring indeed!

November 14, 2011 at 10:22 am in reply to: F-14 VS Tornado F3 #2330260

emile
Participant

I still have no idea about the initial climb rate of Tornado at sea level.
To 11000M less than 2 minutes didn’t give anything valuable.

November 4, 2011 at 2:21 am in reply to: Strange phenomena for F-4 PhantomⅡ #2373486

emile
Participant

In that computer videos the real height over ground is not shown. The “displayed” speeds showed a steep “climb” or an upward vector for that last ditch manouvers to force an overshoot or let him pass.

Are you saying that modular doesn’t match the true situation?

November 3, 2011 at 4:17 am in reply to: PAK FA episodeⅩⅧ #2374003

emile
Participant

Single piece or not there is nothing more released.
Simply making sth large or thicker doesn’t mean anything important.
An amentia’s brain always stay in a fantasy to dream an area to be larger or sth is more thicker….

November 2, 2011 at 12:03 pm in reply to: Strange phenomena for F-4 PhantomⅡ #2374210

emile
Participant

That altitude was not unusual that recovered right in time, if you watched video completely.

November 1, 2011 at 11:40 am in reply to: Strange phenomena for F-4 PhantomⅡ #2374765

emile
Participant

Hmm I have a rival now.
And could you tell me why the inlet was designed as a curved lip originally whereas Su-15 used similar extension either on lateral version?

November 1, 2011 at 2:04 am in reply to: Strange phenomena for F-4 PhantomⅡ #2374905

emile
Participant

Really? The post-stall maneuver done by Phantom II serviced in Vietnam air war for saving his life and got greater benefit of foes killing actually was performed not by refitted experimental F-4.

October 31, 2011 at 11:21 am in reply to: Why no FSW on Comercial plane? #562353

emile
Participant

Yes there is.
Google “aeroelastic stability” and/or “aeroelastic divergence”.
Proof that you can deal with the afore mentioned aerelasticity issues throughout the life of the aircraft and in the event of impact damage to the leading edge.

Your so-called aerolasticity are well known, but it merely appears while entering transonic and supersonic flight, there is nothing to do with certain subsonic flight

October 31, 2011 at 11:14 am in reply to: PAK FA episodeⅩⅧ #2375117

emile
Participant

SU-27 ferry range is about 3900km

What if there is no external DTs, how do you define so-called ferry range?

October 31, 2011 at 9:06 am in reply to: Strange phenomena for F-4 PhantomⅡ #2375213

emile
Participant

Well, why there is no others did post-stall at that era?

October 30, 2011 at 5:27 am in reply to: Why no FSW on Comercial plane? #562525

emile
Participant

Umm.. well if you thought it about logically youd know why.

1) Most airliners have engines under the wings, a FSW will need to be stronger in all cases to hold the weight of engines.

There is no fundamental different structure between FSW and BSW.

2) A FSW airliner wont be able to park at ANY AIRPORT IN THE WORLD which uses an aero bridge…

I can’t see support to your oppinion

– questionable aerodynamic benefit over a well designed wing
– weight growth
– reduced wing internal volume for fuel
– certification
– uncertainties over structural life-span

No additional weight growth compare to Backward Swept Wing, if you understand their structure by sharpe.

No internal volume reduced by same reason above

What’s certification?

uncertainties? yes, but we need no supersonic flight up to now….

October 30, 2011 at 5:13 am in reply to: PAK FA episodeⅩⅧ #2375961

emile
Participant

Weight of fuel T-50

Normal – 5000 kg
Maximum – 8700 kg

Pendant fuel tanks in the basic compartments of loading – 2 * 2000 kg
Pendant tanks under a wing 2 * 2000 kg

Range of flight:
Normal – 1700 km
Without pendant tanks – 3000 km
1 tank – 3700 km
2 tanks – 4300 km
3 tanks – 4800 km
4 tanks – 5200 km

paralay su-27 has range exeded 3000 km,and since t-50 carries more fuel than su-27.how can t-50 hace less range than su-27?

Mikoyan@
You got it wrong.

The extra 1 tank, is infact the extra internal fueltank that both Flankers and T-50 rarly use,, remember the normal takeoff fuel volume!
About 5700kg..

But i think the T-50 will only be plummed for two DT not four!

so paralay was refering for 1 tank INTERNALLY.ok now i got it.great range anyway…:D

There are many paradox here:diablo:
Please notice that F-105 with centrelined weapon bay also be capable of centrelined external dropable tank, why doesn’t PAKFA?

October 29, 2011 at 1:48 pm in reply to: Strange phenomena for F-4 PhantomⅡ #2376220

emile
Participant

My question actually is
Why this curved lip was abandoned?
And the first question remained
Author

Posts

Viewing 15 posts - 271 through 285 (of 525 total)

← 1 2 3 … 18 19 20 … 33 34 35 →