727LOVER
Topic Author
Posts: 6606
Joined: Tue Oct 09, 2001 12:22 am

Could Someone Explain The DC-8 To Me?

Thu Sep 25, 2003 4:25 am

Of all the commercial jet aircraft out there, the DC-8 is by far the most confusing to me. Look at all these series:

-11
-12
-21
-32
-33
-51
-53
-54
-61
-62
-63
-71
-73

Did I miss any?  Laugh out loud

Seriously, this really confusing.  Confused OK, all I know is that a -71 is a high bypass re-engined -61, and a -73 is a high bypass re-engined -63. But what is the difference between -61 & -63?

What is the physical and visual difference in all these series?

Without reading the info, can you name the series of the following aircraft:

1)
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Photo © Howard Chaloner


2)
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Photo © Nik Deblauwe


3)
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Photo © Peter de Groot


4)
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Photo © Ryan C. Umphrey


5)
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Photo © Tom Turner


6)
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Photo © Stefan Sjögren



Your help is definitely appreciated.  Smile/happy/getting dizzy
I feel woozy....what did you put in that Pudding Pop?
 
philhyde
Posts: 574
Joined: Thu Aug 21, 2003 2:16 am

RE: Could Someone Explain The DC-8 To Me?

Thu Sep 25, 2003 4:31 am

There is a fair amount of information on Boeing's website

http://www.boeing.com/history/mdc/dc-8.htm

http://www.boeing.com/commercial/dc-8/
Canon junkie - Aviation Nut
 
MD80Nut
Posts: 972
Joined: Thu Jul 31, 2003 6:43 am

RE: Could Someone Explain The DC-8 To Me?

Thu Sep 25, 2003 4:57 am

Here we go:
-11, -12 Original medium range versions delivered to United and Delta. United converted theirs to -21s, Delta to -51.

-21 Improved medium range version with wing improvements (slots, among others) plus more powerful engines.

-32, -33 Longer range versions of -21.

-43 Same as -32, -33 but with Rolls Royce engines.

-51 Same as -21 but with turbofan engines

-52, 53 Same as -32, -33 but with turbofan engines

-54, -55 "Jet Trader" cargo convertible, same as -52, -53 otherwise

-61 Stretched, medium range version

-62 Stretched, not as long as -61. Long range version with improvements to wings and engine pods to reduce drag.

-63 Stretched, same length as -61 but with -62s improved wing and engine pods, long range

-71, -72, -73 Re-engined (CFM-56) versions of -61, -62, -63 respectively.

The pictures, without looking at the captions:
1. -54F 2. -62 3. -63 4. -71 or -73 5. -71 or -73 6. -62

This is from memory, so I apologize for any mistakes.

Cheers, Ralph

Fly Douglas Jets DC-8 / DC-9 / DC-10 / MD80 / MD11 / MD90 / 717
 
gr8slvrflt
Posts: 1443
Joined: Wed Jan 30, 2002 10:53 pm

RE: Could Someone Explain The DC-8 To Me?

Thu Sep 25, 2003 4:59 am

The -10s were the original turbojet engined versions with water-injection used by, among others United and Delta. The -20s had higher powered engines and were first used by Eastern. The -30s were the original intercontinental models ordered by Pan Am and many foreign carriers. The -40s had Rolls Royce Conway engines and were used primarily by Air Canada and Canadian Pacific. The -50s had Pratt & Whitney bypass engines. All the above had the same size fuselage.

The -61 was a greatly stretched 50. The -62 only had a moderate stretch but had modified wings, pylons, and nacelles. The -63 combined the longer frame of the -61 with the aerodynamic improvements of the -62. The -71, -72 and -73 are CFM56 re-engined versions of the corresponding -60s.
I work for Southwest, but the views expressed are my own and do not necessarily represent those of Southwest.
 
CV990
Posts: 4224
Joined: Sat May 22, 1999 3:49 am

RE: Could Someone Explain The DC-8 To Me?

Thu Sep 25, 2003 5:02 am


Hi!

I'll try to give a fairly simple explanation:

Series 11/21 - Domestic version of the DC-8 and the first ones to be built
P&W turbojet engines.
Series 32/33 - Overwater versions of the 11/21 series, they could longer
routes and I think they had more powerfull P&W engines
Series 40 - Overwater version with RR Conway engines. The diference to yr.
eye was that the front part of the RR Conway engines had a
smaller air intake than the P&W engine.
Series 50 - Same dimension that the other early series of the DC-8 but with
P&W turbofans.
Series 55AF/F - All cargo version of the 50 series without windows.
Series 61 - Streched DC-8 with turbofan engines like the 50 series.
Series 62 - Shorter version of the 61, but bigger than the 10/20/30/40/50's
with new nacelles in the engines and with the biggest range in
the DC-8 family
Series 62F/AF - All cargo or with side-cargo-door version.
Series 63 - Same size as the 61 but with same type of engines and nacelles of
62 series.
Series 63PF - Special version built for Eastern with some features of the cargo
63 ones but built as a passenger airplane. In case of convertion
it was less expensive
Series 71 - A 61 version with new CFM's. This version was harder to convert
because of the engines it used before, they needed to make
changes in the wing structure.
Series 72 - A 62 series with CFM's
Series 73 - A 63 series with CFM's

Between the 71 and 73 it's really hard to see a difference outside, the only way is to check out the history of the plane and find out.
I hope this helps. I know that you can be more refined but my description is like a easy-reference book.
regards
CV990, the Maserati of the skies!
 
broke
Posts: 1299
Joined: Wed Apr 24, 2002 8:04 pm

RE: Could Someone Explain The DC-8 To Me?

Thu Sep 25, 2003 7:08 am

Actually there are 2 visual differences between a DC-8-71 and a DC-8-73. One is very difficult to see at a distance and the other is a little more obvious.

The first difference is that the DC-8-73 has a 6' longer wing span and all of that is on the other wing panel near the tip. On the ground you can compare the two and see the difference, but at a distance that would be a trick to see.

The other visual difference between the two models is on the engine nose cowls. The DC-8-73 has 2 vortex generators (or strakes) at about the 10:00 and 2:00 positions and the DC-8-71 does not.

The DC-8-72 has the same wing span as the -73 and it also has the vortex generators, but it is 20' shorter than either the -71 or the -73.
 
HlywdCatft
Posts: 5232
Joined: Mon Jan 29, 2001 6:21 am

RE: Could Someone Explain The DC-8 To Me?

Thu Sep 25, 2003 8:53 am

**The first difference is that the DC-8-73 has a 6' longer wing span and all of that is on the other wing panel near the tip. On the ground you can compare the two and see the difference, but at a distance that would be a trick to see.**

I think the same applies for the 61 and 63

I think there are only a couple 72s in operation

 
UPSfueler
Posts: 425
Joined: Sun May 25, 2003 9:40 am

RE: Could Someone Explain The DC-8 To Me?

Thu Sep 25, 2003 10:45 am

Alls I know is that when I fueled for UPS in Rockford(RFD) I used to hate fueling them. Its a pain in the butt to park behind the wing and drag out your fuel hoses 30 feet then lug them up metal stairs, then connect the hose to the port.
 
justplanesmart
Posts: 675
Joined: Thu Mar 15, 2001 3:25 pm

RE: Could Someone Explain The DC-8 To Me?

Thu Sep 25, 2003 7:21 pm

The pictures of the DC-8's are as follows:
1. DC-8-54F
2. DC-8-62F
3. DC-8-63
4. DC-8-71F
5. DC-8-73F
6. DC-8-30

The detailed explanations given as to the various series of the airplane by others are quite exhaustive, so I will not add to them.
"So many planes; so little time..."

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