727LOVER
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Differences Between DC-10-30 & DC-10-40

Mon Aug 05, 2002 4:23 am

Are there any VISUAL differences between these two aircraft?
Without clicking on the picture can you tell the difference?


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Usually when I see a DC-10, I just say to myself "HEY a DC-10!" whereas with other aircraft, say 737,747, I would denote a series..

Did NW ever operate series 10s?

Did NW ever operate DC-10s into LGA?
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CV990
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RE: Differences Between DC-10-30 & DC-10-40

Mon Aug 05, 2002 4:30 am


Hi!

The major and most visual diference between the 30 and 40 series of the DC-10 is the fact that in the nr. 2 engine ( tail one ) the 40 series due to the fact it used the bigger P&W engine as a bigger and larger nacelle then the 30, if you look closely the 40 series the shape is not straight it's wider in the front part of the nacelle, in the 30 serie the GE engine is more or less straight from front to end.
Regards
CV990, the Maserati of the skies!
 
dutchjet
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RE: Differences Between DC-10-30 & DC-10-40

Mon Aug 05, 2002 4:32 am

The first 2 questions last:

-NW never operated the DC-10-10, just the DC-10-30 and 40; NW ordered the DC-10-40s, with PW engines, directly from McD Douglas and acquired the DC-10-30s second hand from a variety of sources, many came from Swissair, NW needed the extra capicity when it greatly increased flights accross the Atlantic in conjunction with the KLM/NW alliance and it acquired rights to fly DTW-LGW (rights purchased from DL who got them from Pan Am). NW originally flew 747s accross the Atlantic on routes to some Scandanavian cities - those flights were not successful but then the KLM deal came.

-NW never operated the DC-10 into LGA, I think that the DC-10-40 is too heavy for normal ops into LGA, however, National and American opeated DC-10-10s in LGA and Eastern and TWA operated L1011-1s into LGA for years.

Your main question....visual differences between the DC-10-30 and 40, I really do not know....are the engine cowlings different between the GE engines of the -30 and the PW engines of the -40? That could be something. I do know that the landing gear is different on the -10 from the others, it is "missing" the third center set of main landing gear due to its lighter weight.
 
desertjets
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RE: Differences Between DC-10-30 & DC-10-40

Mon Aug 05, 2002 4:40 am

To follow up what CV990 said. The easiest way to tell a -40 apart is to look for the trumpet flare on the #2 engine cowling. You'll know it when you see it.
Stop drop and roll will not save you in hell. --- seen on a church marque in rural Virginia
 
northstardc4m
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RE: Differences Between DC-10-30 & DC-10-40

Mon Aug 05, 2002 4:49 am

Actually, the easiest way to tell the difference between a Northwest -30 and -40 is the registration, if it ends in US (N###US) or JC (N###JC) (do they still have to 2 JCs?)its a 40 if it ends in NW (N###NW) its a 30.
Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety.
 
Ljungdahl
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RE: Differences Between DC-10-30 & DC-10-40

Mon Aug 05, 2002 5:39 am

I'll try to visualize this (and try to catch some more hits for my pics...)

DC-10-30

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Photo © Johan Ljungdahl


DC-10-40

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Photo © Johan Ljungdahl


...if you take a look at engine # 2, the difference is clearly visible...

...Johan...  Smokin cool
 
CV990
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RE: Differences Between DC-10-30 & DC-10-40

Mon Aug 05, 2002 6:24 am


Hi Johan!

Your photos look great and the way you took them clearly show that the DC-10-40 #2 engine wides in the front part, take a look to the sun reflecting in it!
Great shots indeed!
regards
CV990, the Maserati of the skies!
 
JAL
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RE: Differences Between DC-10-30 & DC-10-40

Mon Aug 05, 2002 6:32 am

It is difficult for me to tell the difference between a DC10-30 and Dc10-40 the same way I find it hard to tell the difference between a B747-300 and a B747-400D.
Work Hard But Play Harder
 
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RE: Differences Between DC-10-30 & DC-10-40

Mon Aug 05, 2002 9:03 am

JAL, look at the wingroots to tell the difference between the 743 and 744D. The 744D I believe has thicker, stronger wingroots than the 743. Other than that, both aircraft look virtually the same.
 
trintocan
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RE: Differences Between DC-10-30 & DC-10-40

Mon Aug 05, 2002 9:13 am

The difference is subtle but the pics by Johan clearly show the difference. In the end it is spotting the two types and noticing the difference which will help in recognition - as it will be for 743 and 744D (wing root being the difference there).

Actually, before reading this thread I was not aware of any difference. Only JAL and NW bought the DC-10-40 - what has happened to JAL's planes? I do know that NW uses the DC-10-30 on its transatlantic routes and the DC-10-40 is mostly used domestically.

Trintocan.
Hop to it, fly for life!
 
n949wp
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RE: Differences Between DC-10-30 & DC-10-40

Mon Aug 05, 2002 11:04 am

JAL bought 20 DC-10-40's from MD with deliveries stretched from the mid-70's to the early 80's. Initially, they flew all across the world on JAL's network, but in recent years has been re-assigned to mostly Japanese domestic, Asian and Hawaiian routes. More than half the fleet is still in service (I believe), with the rest sold for cargo conversion.

'949
 
Brick
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RE: Differences Between DC-10-30 & DC-10-40

Tue Aug 06, 2002 12:14 am

Here's a NW DC-10-10 for you:


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Mark Abbott
Denver, CO
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charliecossie
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RE: Differences Between DC-10-30 & DC-10-40

Tue Aug 06, 2002 2:04 am

Brick:
I think this is a 40 with the centre gear retracted (operation in this config is quite possible).
Bill Harms website also list this a/c as a 40.

Anyone notice the panel hanging open below the nbr 3 engine thrust reverser?
Tut, tut.
 
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RE: Differences Between DC-10-30 & DC-10-40

Tue Aug 06, 2002 5:32 am

JAL operates their 40's in this config quite often when the center gear is not needed because the aircraft isnt that heavy on certain rtes. It cuts down on maintenance cost and the unneeded wear and ter on the gear.
Treat others as you expect to be treated!
 
Brick
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RE: Differences Between DC-10-30 & DC-10-40

Tue Aug 06, 2002 9:58 am

Charliecossie,

Of course it's not a -10. It's a -40. It just looks like a -10 which is why I posted it...

I must have gotten about 25-35 e-mails about this picture when I first posted it...every one of them telling me I misidentified it as a -40.

Mark Abbott
Denver, CO
A noble spirit embiggens the smallest man...

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