Number of exhaust duct ?

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Kurtl

Airman 1st Class
129
1
Aug 14, 2006
Looking forward to identify this unknown american aircraft. Just have seen a few small parts yet, but with number on it. One looks like an exhaust duct shows "104-42010 2405", "104-42010 3408", and two little stampings with "32und 21". Can anyone identify these numbers and post a drawing of that part?

Another parts shows "BOHNALITE" and the number "609818".

Thanks for any help.

Kurtl
 

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104 series numbers come from North American Aviation and were used on the P-51 line. That's definitely a Merlin exhaust. My guess is you're looking at a P-51 wreck!
 

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And is it possible to determine the type of the engine for example to find out which version of the P-51 it was? I think that someone it this forum has a part list of the Merlin Engine and could provide us with further details - thanks. Kurtl
 
Gentlemen, here are some new pictures of the same crashplace. One part, looks like a holding for something shows the number 102 421 (first picture). Does this help?

The sheet alu part shows some olive color. This could come from the engine cowl in front of the cockpit.

What you think about the valve on the last picture. It has a diameter about 5 cm. Could it help to determine the engine type exactly?

regards,

Kurtl
 

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I have it on good authoruty that 104- numbers are used only in P-51B models apparently

Absolutely, positively, NOT correct.

The 104- prefix indicates the part was first designed to be used, not exclusively used, on the NA-104, which was the P-51D.
Some 104- part numbers were retrofitted to B and C models after they left the factory - eg TO 01-60J-23 Modification of coolant expansion tank assembly adds a number of 104- parts to the B & C model aircraft.

The P-51B was the NA-102
The P-51C was the NA-103

Many parts on the P-51 series aircraft start with 16-, 19- and 36- which means they were originally designed for the NA-16, BT-9 and BC-1 aircraft.
Many more P-51 parts carry the 73- prefix which means the part is unchanged since the prototype Mustang aircraft.
 
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Gentlemen, here are some new pictures of the same crash place. One part, looks like a holding for something shows the number 102 421 (first picture). Does this help? Kurtl

Hi Kurtl

This confirms it is a P-51. That part number is incomplete as there should be five or six digits after the 102. The 102 indicates it was first designed to be used on the P-51B and probably continued into much later models

There is a P-51 parts list on the forum so look in that and you will be able to identify the part fairly quickly as NAA used a logic in their part numbers and 102-421 means it is from the engine accessories area.

Happy hunting

Mi
 
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