which to cut F-35B or F-35C

[jack412]

SAR 2010
Combat Radius NM -CTOL Variant
SAR Baseline Dev Est 690 / Current Estimate 584 (Ch-1)
"(Ch-1) Based on updated estimate of engine bleed, the existing Conventional Takeoff and Landing Variant's
Combat Radius prediction of 584 nautical miles (nm) is below the threshold of 590 nm. The current prediction is
based on estimates for bleed usage, aircraft performance, and fuel capacity that are not yet fully known. Current
estimates have built-in margin that may not be realized. Non-material (analysis and test) measures continue to
reduce key performance parameter (KPP) uncertainty. Realistic aircraft modifications to add fuel capacity exist to
recapture the KPP. These design modifications are being matured to sufficient level to allow for a program decision
on incorporation if the current estimate remains below threshold as uncertainty is reduced. This estimate is based
on preliminary data. The Program is still in the data analysis stage.

for the B/C
"(Ch-2) The current estimates changed from the December 2009 SAR due to design maturation.
Short Takeoff and Vertical Landing (STOVL) Mission Performance changed from 524 ft to 544 ft.
Combat Radius Nautical Miles (NM) - STOVL Variant changed from 481 to 469.
Combat Radius NM - Aircraft Carrier Suitable (CV) Variant changed from 651 to 615.
Sortie Generation Rate - STOVL changed from 3.36/day sustained surge to 5.55/day sustained surge.
Mission Reliability - CV changed from 97.8% to 98.4%, STOVL changed from 98.3% to 98.0%, and CTOL changed
from 97.6% to 97.1%.
CV Recovery Performance, Approach Speed changed from 143.0 kts to 144.6 kts.

lots of articles on it
http://www.google.com.au/search?sou...&gs_upl=2312l2312l0l3672l1l1l0l0l0l0l0l0ll0l0

 

[south]

copied bypass is different to bleed air...

Bypass is air that goes through the compressor but not through the combustion chamber. Bleed air is generally taken from bypass air but the amount is going to vary based on a whole heap of different stuff. An example is that in some turbofans/turboprops air conditioning is run off the bleed air. If you turn off the aircon, that compressed air goes out the exhaust and will end up giving better performance because now the engine isnt working to compress air that then gives no benefit to the propulsive effect.

The amount of bleed air tapped for cooling etc should be very similar for all models. I would suggest that the bypass ratio will be the same certainly for the A and C models, and probably the B model in up and away flight.

 

[Abraham Gubler]

PAK-FA, AMCA, HAL-FGFA for starters are going to be at least equal and some might be better.

At least equal, how so? Surely by this claim you mean they will have similar stealth and sensor/network/weapon capability?

There is nothing to indicate that the PAK-FA will be as stealthy as a Super Hornet not to mention the far stealthier F-35. Hint: a hard chine on the nose and some dark grey paint does not make an aircraft stealthy.

 

[the road runner]

Whats going on now with the JSF? Jurnos being told what to write(well thats nothing new),A and B model having issues, General from JCS saying we cannot afford all 3 JSF.

Issues Emerge on F-35B After Sea Trials | Navy News at DefenseTalk

There is so much mis information going on now(not saying the above link is mis info) i dont know what or who to believe.

Would the C model be suitable for Australia s requirements? I read that Australia s JSF would be the A model but with the C under carriage and wings.

Go NAVY?

 

[SpudmanWP]

Really, you are giving Wheeler serious thought?

Jurnos are not being told what to write as that is ridiculous and would be leaked if it did happen.

The Wasp trial was to last from 2 to 6 weeks and lasted 3, no problems there. The extra week (beyond 2) could have been a mix of weather, repairs, testing, etc.

Every plane has small issues as it progresses through SDD (it's called System Design & Development after all). The true gauge of how a program is going is how it addresses those issues. For example all the issues that have come up (save the nighttime display of HMDS imagery) has been quickly addressed. Contrast this to the F-18 Super Hornet's weapon separation problems and them using the quick fix of canting the pylons which has caused much range, speed, and maneuverability problems since then.

 

[the road runner]

Really, you are giving Wheeler serious thought?

I thought that it being posted on the DT Home page it would have credibility.


Thanks

 

[SpudmanWP]

Always consider the source