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  New Aircraft QUIZ-Tougher this time? 
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Doug Robertson



Joined: 01 Nov 2005
Posts: 1239
Location: Southern California

PostPosted: Tue Jul 26, 2011 7:07 pm    Post subject: New Aircraft QUIZ-Tougher this time? Reply with quote

OK, aircraft experts. What bomber in squadron service was originally designed for four reciprocating engines but the production model wound up with only two?

Hint-Only 21 were produced, including the prototypes. Name the make, model and engine designations.

Warning-There is a bit of a weasel in my request, but legitimate.

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Ztex



Joined: 28 Aug 2007
Posts: 615
Location: DFW - GKY

PostPosted: Wed Jul 27, 2011 9:55 am    Post subject: Reply with quote

Well...only 21 B-2's were built....but it's a 4 engine machine so... Laughing Wink Wink

Are you talking about the Keystone LB-7 with Pratt & Whitney R-1690's ?

The weasel may be that the LB-7 was one of many Keystones in the LB-6 series...LB-6 through LB-14...mostly the same with different engines and tails. And 3 of the LB-7's were actually LB-6's, modified.


NMUSAF Photo

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Doug Robertson



Joined: 01 Nov 2005
Posts: 1239
Location: Southern California

PostPosted: Wed Jul 27, 2011 11:55 am    Post subject: Reply with quote

Sorry Zane. Wrong on all speculations. This one is tough, I'll admit. Keep trying though.
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Glenn E. Chatfield



Joined: 02 Apr 2006
Posts: 819
Location: North Liberty, IA

PostPosted: Wed Jul 27, 2011 2:46 pm    Post subject: Reply with quote

American or foreign?

   
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Doug Robertson



Joined: 01 Nov 2005
Posts: 1239
Location: Southern California

PostPosted: Wed Jul 27, 2011 3:19 pm    Post subject: Reply with quote

Hint-think American-candy-that melts in your mouth, heh, heh.
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Ztex



Joined: 28 Aug 2007
Posts: 615
Location: DFW - GKY

PostPosted: Wed Jul 27, 2011 4:03 pm    Post subject: Reply with quote

Martin P4M Mercator - Pratt & Whitney 4360's (and a couple of Allison J33 gas burning jets, thus another weasel? )

2 prototypes ans 19 production versions....

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Doug Robertson



Joined: 01 Nov 2005
Posts: 1239
Location: Southern California

PostPosted: Wed Jul 27, 2011 4:56 pm    Post subject: Reply with quote

WOW! Congratulations Zane! Was my M&M clue helpful?

The rare and hardly known US Navy Martin P4M-1 MERCATOR with two 3,250 Hp P&W R-4360-20A Wasp recips and two 24,610 lb st Allison J33-A-10A Turbojet engines operated in the Cold War era for maritime patrol work only with VP-21 starting in June 1950. They replaced the US Navy's PB4Y PRIVATEERs

These were originally designed for maritime patrol work but were converted to P4M-1Q radar reconnaissance intelligence aircraft, spying on Soviet and Chinese radars. VQ-1 then operated them in the Pacific and VQ-2 operated them in the Atlantic zones. They were retired from service in 1961 after one loss-one shot down and another fired at.

Specs: Max speed: 409 mph at 20,090 ft.
Range: 2,833 miles
Service ceiling: 25,145 ft
Max Weight TO: 88,194 lbs.
Weapons: 4 20mm cannons, 4 .50 cal machine guns,
up to 5,988 lbs bombs

Wingspan: 114 ft
Length: 86.6 ft
Height: 26 ft
Wing area: 1,310 sq ft

And yes, the weasel bit was the total engines number, recip (plus jet).

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Last edited by Doug Robertson on Fri Jul 29, 2011 6:20 pm; edited 1 time in total

   
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Ztex



Joined: 28 Aug 2007
Posts: 615
Location: DFW - GKY

PostPosted: Wed Jul 27, 2011 8:47 pm    Post subject: Reply with quote

Yeah the M&M's thing was a huge hint...I had actually looked at some earlier Martin stuff before but didn't go far enough. Plus when you said Squadron...somehow my brain said Air Force....so..

Good one! I learned something today!

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red750



Joined: 22 Mar 2009
Posts: 194
Location: Melbourne Australia

PostPosted: Thu Jul 28, 2011 5:05 pm    Post subject: Reply with quote

Hi All

There is a plastic construction model kit of the Mercator for those interested -

http://www.anigrand.com/AA4049_P4M-1.htm

Cheers,

Peter.

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