Forum: F-35 Lightning II

http://www.lockheedmartin.com/data/asse ... tFacts.pdf
from this, it's 34,800 pound.

but from the pic below, it's about 32,000 pound.

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the pic is 240-4 configution, not very old

gwe2008, USN LSOs would be obsessive about accuracy and all they can say is what is below. The actual figure (with or without internal hydraulic fluid and other bits and pieces) is probably unknown at this stage until final 'empty weight configuration' known that would be available in F-35C NATOPS for example (if and when available to public - dunno).

From END of this page here:
http://www.f-16.net/f-16_forum_viewtopi ... rt-15.html

F-35C carrier approach info: VX-23 'Salty Dogs' Joint Strike Fighter Update -LCDR Ken “Stubby” Sterbenz VX-23 Ship Suitability Department Head in Paddles Monthly - Sept 2010

http://www.hrana.org/documents/PaddlesM ... er2010.pdf (1.3Mb)

"The F-35C is 51.5 ft long and has a wingspan of 43 ft and 668 ft2 of wing area (7 ft longer wingspan and 208ft2 more wing area than the Air force or Marine versions.) It also carries 19,800 lbs of internal fuel - 1000 pounds more gas then the Air Force version. It is powered by a Pratt and Whitney F135 engine that produces 28k lbs and 43k lb of thrust in MIL and AB respectively. The max trap weight will be around 46k lbs, with an empty weight of about 35k lbs. It will fly an on-speed AOA of 12.3° at 135-140 KCAS [Optimum Angle of Attack or Donut]. Due to the fact that flap scheduling is completely automatic, the cockpit was designed without a flaps switch. Additionally, the tail hook retracts into the fuselage and is covered by hook doors that have an as-yet-to-be-determined airspeed limitation..." LT. Dan "Butters" Radocaj - VX-23 Ship Suitability

Maintenance Hangar Design & Planning Guidance for F35B or C

http://www.wbdg.org/ccb/NAVFAC/INTCRIT/fy10_01.pdf (263Kbs)

F-35C EMPTY 34,986 lbs The lower figure [34,800 lbs] quoted above would be for 'out of the factory empty' NOT as here - on the flight line empty - ready for fuel and weapons etc. That is my guess.

Where does the pic of CV aircraft with lower weight come from?

F-35 Target Weight *240-1 CY2002 (pounds) *240-2 CY2003(pounds) *240-4 CY2006 (pounds) Change since 2002
F-35C 30,049 30,700 32,072 6.7%
F-35B 29,735 30,500 32,161 8.2%
F-35A 26,500 27,100 29,036 9.6%

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as above, 35,000pound may be an old data.
CTOL and STOVL were about 2,000 pounds more than 240-1.
but CV was 5,000 pounds more?

By February, dark clouds were gathering, and it was clear that the team was sailing into stormy technical waters.
As detailed design progressed, weight estimates from early in the design phase were found to be overly optimistic.
Program leadership was soon faced with the grim reality that the short takeoff/vertical landing (STOVL) variant would need to lose as much as 3,000 pounds to meet performance

Program leadership wasted no time in forming a specialized team of 500 engineers and managers, the STOVL Weight Attack Team (SWAT), with the single-minded purpose of hauling the aircraft back into its required-performance envelope.
The team not only excised more than 3,000 pounds of unwanted estimated weight, but also improved structural integrity, optimized load paths and brought greater efficiencies to the overall aircraft.

Because of their shared basic architecture, all three F-35 variants will benefit from the SWAT-generated design enhancements.

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35,000 is just 3,000 more than 32,000.
so 35,000 may be the old data.

http://www.lockheedmartin.com/data/asse ... tFacts.pdf
from this, it's 34,800 pound.

------
this file was updated at 2010/11, but some data in this file were very old.

eg:
Initial Operational Capability (IOC) dates
• 2012 for USMC
• 2013 for USAF
• 2014 for US Navy

Average Unit Recurring Flyaway Cost (in FY 2002 dollars – the most recent comprehensive estimate)
• F-35A upper-$40 million
• F-35B mid-$60 million
• F-35C mid-$60 million

gwe2008, just post some random numbers and you will be close until perhaps the F-35C NATOPS gives a definitive answer.

Last edited by qwe2008 on Jan 14, 2011 - 05:48 AM; edited 1 time in total

spazsinbad wrote:

gwe2008,

??
who's gwe2008?
you are wrong.

so far as I know, 34,800 seems like a very old data.
from 240-4 configution to now, CTOL/STOVL weight changed very little, only CV changed much? impossible.

if CV is 35,000 pound, that meas it's about 6,000 more than CTOL.

CV has no internal gun, CTOL has it. it's about 5,00 pound.
CV is only 7.5g, while CTOL is 9g.
CV and CTOL are equiped nearly the same engine and mission systems.
....
if CV is 6,000 pound more, it is too big.
CV has bigger wings, but in any other configution, such as 240-1/2/4, the diifferenece is about 3,000 pounds.

gwe2008, you can believe whatever you wish.

spazsinbad wrote:

gwe2008, you can believe whatever you wish.

I am not gwe2008.

qwe2008 then, must be the weight...

35K? The F-35C is a brick. For a single-engined carrier-based fighter, that is heavy. As a comparison, that is significantly heavier than a 2 seat, twin-engined F-4 Phantom II and is heavier than an F-105.

Forum: F-35 Lightning II

the weight of F-35C?