This information is incorrect. The USMC elected to go with the so-called
2000# bay for the B.

"Henry J Cobb" wrote in message
...
R. David Steele wrote:
How much payload do you lose in the STOVL version?

http://www.faqs.org/docs/air/avf35.html
The F-35A and F-35C can carry two 900 kilogram (2,000 pound) JDAMS
internally, while the STOVL F-35B is limited to internal carriage of two
450 kilogram (1,000 pound) JDAMs.
...
Only the USAF F-35A has a built-in gun, with an "Advanced 27 Millimeter
Cannon", an improved version of the Mauser BK-27 revolver-type cannon,
in the left wingroot. The other variants do not have a built-in gun, but
can accommodate a cannon pack plugged into one of the weapons bays.

So the answer seems to be half the internal bombs and the gun.

Is a F-35B with a gun pod non-stealthy?

-HJC