747400sp From United States of America, joined Aug 2003, 4017 posts, RR: 2 Posted (8 years 3 months 2 weeks 6 days 22 hours ago) and read 2265 times:
The 707 has one of the strongest air frame ever built (for an airliner). This is due to the fact that they was built in the 50s' and 60'. Eventhough the E-6 Mercury is a 707, it was built in the late 80's. So did Boeing build the E-6 the same standers the original 707s, are did Boeing just use composite materials like in the 737 classics?
Miamiair From , joined Dec 1969, posts, RR:
Reply 2, posted (8 years 3 months 2 weeks 6 days ago) and read 2125 times:
The rudder is beefed up.
The airframe is the same, the only composites are some of the antenna fairings and radomes. The flight controls are metal-to-metal bond, with numerous panels manufactured with crushed core. The spoilers are all metallic, no honeycomb; and the slats are all magnesium castings.