Various Martin Commercial Flying Boat and Airliner Projects

At this point in time I would narrow it down to:
Model 148, Four engined monoplane flying boat for Pan American.
and
Model 150, 40 passenger ‘Streamliner’ flying boat
but I have no pictorial evidence whatsoever to confirm this.
Perhaps it is a design that never got a formal number.
 
Hi,

there is unknown 100-passenger transport project for Martin and it
had an estimated weight of 125 tons.

http://www.flightglobal.com/PDFArchive/View/1942/1942%20-%202627.html
 

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Hesham's 100 passenger Martin design is very odd.

The passenger size, six buried engines, and double-decker layout all smack of the "Lindbergh Specification" (Juan Tripp's nonsensical bit of street-theatre for Pan Am). Boeing, Sikorsky, and Consolidated all contributed designs (although the latter was actually a four-engined concept).

With the M-130 Clipper experience behind him, Glenn Martin denounced the "Lindbergh Specification". Could it be that a Martin concept was drawn up for the Pan Am "competition" anyway?
 
lark said:
"...Gun turrets fore and aft ,along with a retractable belly turret, were considered...

With regards to that statement, I would expect true dorsal and ventral turrets, similar to the
one in the nose, not just flexible guns, which at this time already were regarded as inferior
to powered gun positions.
 
hesham said:
in the same article about NACA flying boat projects,there is a small info
about Martin M-150,can we recognize it,from many unknown drawings
which we have ?


The Martin 150 was the 40-passenger Streamliner (presumably an enlarged version of the 20-passenger Model 143 Streamliner that was specifically for Pan American Airways).
So far I have not been successful in locating a picture of these two projects...
 
Thank you Stargazer,


and may be the M-150 is one of the drawings in this article,just a suggesting.
 
hesham said:
and may be the M-150 is one of the drawings in this article,just a suggesting.


The text doesn't sound like it. "Two aircraft in that category [which I think means: the monoplane type tested by NACA] are currently being produced by American manufacturers." It doesn't say that the NACA designs represent these (otherwise we would also see the S-42 in the drawings I think).
 

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From l'Aeronautique 1937,


here is the Martin M-158 transport project.
 

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No problem ! Better to move something, than not to see it at all ! ;)
 
Great find my dear Paul,


as I think it was Martin M-158.
 
This is the Martin model 150 G/H proposal.
A 40 seat airliner.

Variants running from A to P...

The model 158 was a larger aircraft.
source : photodrawing n° 19630- Martin Museum.
 
lark said:
This is the Martin model 150 G/H proposal.
A 40 seat airliner.

Variants running from A to P...

The model 158 was a larger aircraft.
source : photodrawing n° 19630- Martin Museum.

I plead guilty for wrongly assuming the Streamliner was the Model 158. I had identified it as such on my now defunct Martin page. Indeed my list has the right allocation (Model 150) while Model 158 was a larger 70,000 lb land transport project for TWA. Sorry about the confusion!

Of interest is the fact that this was one of a few Martin types designed by James S. Mc Donnell, Jr. before he left to found his own highly successful company.

Here is a set of patents related to the Streamliner (attachments 4 to 7 are the PDF files):
 

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hesham said:
there is unknown 100-passenger transport project for Martin and it
had an estimated weight of 125 tons.

http://www.flightglobal.com/PDFArchive/View/1942/1942%20-%202627.html

Hi,

this Project was called Martin M-193.

American Flying Boats and Amphibious Aircraft
 

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Based on the Model 163, the Model 193 was meant to be a large transport, similar to the Hughes Spruce Goose. Building five hundred six-engine Model 193's could win the war, declared Glenn Martin, and company ads frequently depicted it as a postwar airliner.
Long before the Model 193 could have been ready, the tide had turned in the Battle of the Atlantic.
(based on information on the Glenn L Martin Aviation Museum website)
 
Same plan from same source, better quality:
 

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Hi,

here is an Info about Martin M-228,it was developed from M-202.

http://archive.aviationweek.com/image/spread/19451101/87/2
 
Hi,

was it a Model-156 ?.

http://www.avia-it.com/act/biblioteca/periodici/PDF%20Riviste/Ala%20d'Italia/L'ALA%20D'ITALIA%201933%2001.pdf
 

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hesham said:
was it a Model-156 ?.

http://www.avia-it.com/act/biblioteca/periodici/PDF%20Riviste/Ala%20d'Italia/L'ALA%20D'ITALIA%201933%2001.pdf

Again from anther issue,and the same question;

http://www.avia-it.com/act/biblioteca/periodici/PDF%20Riviste/Ala%20d'Italia/L'ALA%20D'ITALIA%201933%2003.pdf
 

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hesham said:
was it a Model-156 ?.

I doubt it ... probably just generic concept art. The Model 156 'Soviet Clipper' just looked like a twin-tailled Model 130.
 
Apophenia said:
I doubt it ... probably just generic concept art. The Model 156 'Soviet Clipper' just looked like a twin-tailled Model 130.

Or known design,honestly I don't know my dear Apophenia.
 
It is not a known design and as Apophenia mentioned not
the Soviet Clipper model 156.

As far as I found this illustration is a phantasy based on incomplete information
about the first itterations of the model 130 which was
designed with 3 vertical fins and rudders.
On the other hand the wing struts and sponsons (seawings) seems to be
inspired by the Consolidated flying boats in the Commodore series..
 
hesham said:
http://www.flightglobal.com/PDFArchive/View/1942/1942%20-%202627.html

From Aeroplano 34.
 

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From Flying 1943-6/7.
 

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From Flying magazine 1944-3,

what was this martin,it looks like a variant of M-160 ?.
 

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It's a badly-done artist's impression of a giant flying boat that vaguely resembles the Martin M-193.
 
From Martin Archive,

some drawings to the M-160 & M-159.
 

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Last edited:
Which is which?

AlanG

My dear Alan,

the first two pictures are for M-160,and the third is for M-159,you will find that their numbers are written on them.
 
Last edited:
From, Western_Aviation_Missiles_and_Space 1940.
 

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From this book.
 

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From, Western_Aviation_Missiles_and_Space 1942.
 

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