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DC-8 Series 70 Conversions  
User currently offlineWannabe From United States of America, joined Jun 1999, 681 posts, RR: 2
Posted (14 years 10 months 1 week 5 days 5 hours ago) and read 1640 times:

Can anyone give me some information about the DC-8's that several of the overnight delivery firms use, such as Airborne Express and Emery? Were any structural modifications made to the airframe or wings when the CFM56 engines were installed? What performance improvements were realized above and beyond fuel efficiency? Does the upgrade allow the aircraft to use airports with shorter runways? Any information would be appreciated.

3 replies: All unread, jump to last
User currently offlineTimz From United States of America, joined Sep 1999, 7228 posts, RR: 7
Reply 1, posted (14 years 10 months 1 week 4 days 5 hours ago) and read 1584 times:

You didn't mean Airborne, did you?

User currently offlineSierraind From , joined Dec 1969, posts, RR:
Reply 2, posted (14 years 10 months 1 week 3 days 19 hours ago) and read 1565 times:

i used to work on them at Dalfort Aviation. they all belong to UPS. it has been about 10 years, but the aircraft was made longer and the plyons were redone to take the engines. I like working on them. most of it was made up with cables and hydraulics.

User currently offlineJETPILOT From United States of America, joined May 1999, 3130 posts, RR: 27
Reply 3, posted (14 years 10 months 1 week 3 days 18 hours ago) and read 1562 times:

I can't answer these specific questions being asked but I can tel you that the airplane wasn't stretched.

The 71's are the same legnth as the 61's.

The 72's are the same legnth as the 62's.

The 73's are the same legnth as the 63's.

UPS doesnt have all of them either. They are everywhere.

Some operators include...

MAS Cargo
NASA Langley Research
Emery Worldwide
Tampa Columbia

And a few others.

The DC8s were converted by Cammacorp and were brought back to zero time airframes.

Airborne only has 50/60 series DC8's. No converted 70's.

There was no increased MGTOW increase even though thrust was substantially increased from 18,000- 24,000 pounds of thrust per engine.

This doesnt answer any of your questions but it may help.


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