Posts: 9
Joined: Tue Jul 23, 2002 2:47 pm

C-9B's To MD-80's

Fri Oct 11, 2002 7:44 am

Are the MD-80's structurally sound to be converted into cargo freighters and has there ever been interest in such a development? If so, would it not be a logical successor to the widely used but aged fleet of C-9B's in U.S. military inventory?

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Joined: Fri Jul 28, 2000 3:19 am

RE: C-9B's To MD-80's

Fri Oct 11, 2002 8:58 am

Structurally there is very little difference between the DC-9 and the MD-80. The fuselage is the same structure with an extra section inserted forward of the wing. The wings are longer on the MD-80.

As far as the US military converting used MD-80s to replace the DC-9 fleet it wouldn't happen. They are buying 737-800s to replace the DC-9 fleet. The US military prefers to buy new aircraft. They would only convert used civil aircraft if no new aircraft fit the requirements. I think the JSTAR aircraft are converted 707.
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Joined: Tue Oct 19, 1999 4:26 am

RE: C-9B's To MD-80's

Sat Oct 12, 2002 12:11 am

Actually, a number of the USN C-9Bs were acquired second-hand (in some cases 4th or 5th). Almost all of the ex-airline C-9s were CF airframes similar to the new-build C-9s. The CFs came from Douglas with cargo doors and beefed-up cabin floors.

The cost of those aftermarket modifications to a relatively small number of Mad Dogs (in addition to acquisition and training costs) would be prohibitively expensive. The Navy is getting new custom-built airframes in a package deal which includes training and heavy MX.

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