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SCD Welded Shut When 747 Converted To Full Pax?  
User currently offlineJunior1970 From United States of America, joined Dec 2004, 156 posts, RR: 0
Posted (11 years 1 month 4 days 1 hour ago) and read 3368 times:

I don't know if this is the right forum for this question. I apologize if it isn't.

On the picture, on the back of the plane you can clearly see the SCD still in place, but the plane has been permanently converted to a full pax plane.
Is the SCD being welded shut or just closed and locked like it's always been when still in combi config ?

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Photo © Michael W. Rosa

Thanks for your input.

5 replies: All unread, jump to last
User currently offlineCedarjet From United Kingdom, joined May 1999, 8628 posts, RR: 53
Reply 1, posted (11 years 1 month 4 days 1 hour ago) and read 3359 times:

I would think they would just lock it. Modifying the aircraft permanently would be expensive and probably lower it's value at the same time - combis are relatively unusual and can be quite desirable. MEA leased out it's three 747-200 Combis (and it's own ops became 707-only) during the Lebanese civil war and paid it's entire wage bill with the income.

fly Saha Air 707s daily from Tehran's downtown Mehrabad to Mashhad, Kish Island and Ahwaz
User currently offlineHercTech From Canada, joined Feb 2005, 61 posts, RR: 0
Reply 2, posted (11 years 1 month 4 days ago) and read 3243 times:

that and you cannot weld the particular aluminum alloy that the door and skin of the aircraft would be made of.

User currently offlineJunior1970 From United States of America, joined Dec 2004, 156 posts, RR: 0
Reply 3, posted (11 years 1 month 4 days ago) and read 3227 times:

Thanks guys. I appreciate your quick responses.

User currently offlineIMatAMS From Netherlands, joined Feb 2005, 325 posts, RR: 0
Reply 4, posted (11 years 1 month 3 days 23 hours ago) and read 3130 times:

There's no point welding it shut. 742 convertibles also fly with a locked cargo door when they're in pax-mode, so why go through the trouble welding it if it can be just locked?


User currently offlineDL_Mech From United States of America, joined Feb 2000, 2277 posts, RR: 9
Reply 5, posted (11 years 1 month 3 days 15 hours ago) and read 2871 times:

Usually, deactivated doors are bolted to the fuselage structure with brackets. They are easily reopened and reactivated by removing the brackets.

This plane is built to withstand anything... except a bad pilot.
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