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Martin Project List

Stargazer2006

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Model 77: experimental U.S. Navy biplane dive bomber, one built (1929).
 

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Grey Havoc

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Model 115: two-seat open cockpit sport touring aircraft project; never built (circa 1930).


NOTE: I'm reusing this post by Grey Havoc which signaled a corrupt PDF (now removed) to insert the Model 115 which I had forgotten. — Stargazer2006
 

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Stargazer2006

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Model 117: U.S. Navy patrol bomber flying-boat developed from the N.A.F./Curtiss PN- series, and similar to the PN-10/11/12 models.
Thirty built (1930), with three sold to Brazil as PM-1B in 1938.
 

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Stargazer2006

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Model 118: experimental torpedo plane for U.S. Navy (XT6M-1); only one built (1930).
 

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Model 119: experimental three-engined patrol boat for U.S. Navy with open cockpit (XP2M-1) and the same modified with two engines and an enclosed cockpit (XP2M-2) (1931).
 

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Stargazer2006

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Model 120: twin-engined patrol boat developed from P2M design; three built as P3M-1, and six more built as P3M-2 with enclosed cockpit (1931). P3M-1s later put to -2 standard.
 

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Stargazer2006

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Model 122: U.S. Navy PM-2 patrol boat, a refined variant of PM-1 with twin-fin arrangement; 28 built (1931).
 

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Stargazer2006

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Model 123: high speed monoplane bomber prototype evaluated in 1932 by U.S. Army Air Corps as the XB-907, modified with turreted nose as the XB-907A, and later purchased as the XB-10 in 1933.
 

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Stargazer2006

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Model 125: U.S. Navy BM-1 dive bomber, modified from the XT5M-1 design; 17 BM-1s built plus one experimental XBM-1 (1932).
 

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Stargazer2006

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Model 129: dive bomber basically similar to BM-1, and last biplane produced by Martin; 17 built (1933).

NOTE: Attached documents refer to both the Models 125 and 129.
 

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  • 129.jpg
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Stargazer2006

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Model 130: four-engine flying-boat airliners for Pan American Airways; three built, dubbed the "Hawaii Clipper", "Philippine Clipper" and "China Clipper" (1935).


Model 133: twelve-passenger commercial transport project, not built (1934). The patent illustration below, dated 1934, most likely depicts that design.
 

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Stargazer2006

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Model 139: presumably the redesignation of the former Model 123 after modification as XB-10 prototype of the B-10 series.
Model 139A
: high speed bomber for U.S. Army Air Corps (YB-10), first production version of the Model 123 prototype; 14 built (1934).
Model 139B: a single prototype designated YB-10A (1934) and probably also the B-10B main production version, 105 built (1934-36).

Other variants included the B-10M and B-10AM (conversions), the YB-12 (seven built in 1934), the YB-12A (25 built in 1935), the B-12AM (conversions) and three prototypes : the XB-14 (1935), the A-15 attack/bomber variant and the O-45 observation/bomber (both in 1937). The B-13 variant was not built.
 

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  • B-10.jpg
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Stargazer2006

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Model 139W: export version of the B-10 series.
  • one 139WA demonstrator aircraft to Argentina (1937)
  • twenty-two production 139WAA aircraft for Argentine Army (1938)
  • twelve production 139WAN aircraft for Argentine Navy (1937)
  • six 139WC aircraft and three 139WC-2 aircraft for China (1937)
  • thirteen 139WH aircraft for the Netherlands (1937)
  • twenty-six 139WH-2 aircraft for the Netherlands (1938)
  • forty 139WH-3 aircraft for the Netherlands (1938)
  • forty-two 139WH-3A aircraft for the Netherlands (1939)
  • one 139WR aircraft for Russia (1936 or 1937)
  • three 139WSM aircraft and three 139WSM-2 for Siam (1937)
  • twenty 139WT aircraft for Turkey (1937)
NOTE:
- The Model 139 was the first Martin design with definite sub-types indicated by letters.
 

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  • Dutch.jpg
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Stargazer2006

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Model 145A: four-engine bomber for the U.S.A.A.C.'s "Project A" competition (which also spawned the Boeing XB-15) (1934).
 

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Model 145B: completely redesigned "Project A" proposal as a twin-boom aircraft with six Allison V-1710-2 (four in tractor mode and two in pusher mode); not built (1935).
 

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Model 146: high speed bomber demonstrator developed from the Model 139 series; only one built (1935).
 

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Stargazer2006

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Model 156: Four-engine ocean transport developed from Model 130 and christened the "Soviet Clipper" (1938). One built.
 

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Stargazer2006

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Model 158: 70,000 lb land transport (as opposed to flying boat) airliner project for TWA (1938). Not built.

The illustration below, taken from a 1938 patent, is reminiscent of the general characteristic of the Lockheed Constellation (TWA's eventual choice), and therefore most likely depicts the Model 158 project.
 

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Stargazer2006

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Model 159: observation scout seaplane proposal for U.S. Navy; Martin's last biplane design; never built (circa 1938).
 

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nugo

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Hi All!
Hi Stargazer2006!
Very good work my friend. You're right when a draft is necessary (if possible) to show his picture or drawing.
I will also do so.
Martin Model 159---competitior of the XOSN-1, XOSS-1 and XOS2U-1.
 

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Model 162 Mariner:

- U.S. Navy XPBM-1 experimental patrol bomber flying boat prototype; one built (1939).
- Same aircraft modified as XPBM-1A for armament experiments (1941).
- U.S. Navy PBM-1 twin engine patrol bomber flying boat; twenty built (1941).
- U.S. Navy XPBM-2 experimental patrol bomber flying boat prototype with extra fuel capacity and provisions for catapult launching; one built (1941).
 

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Model 162A Tadpole Clipper: Three-eighths scale flying aircraft (also called the « Mini-Mariner ») used to test water takeoffs and landings (1937).
 

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Stargazer2006

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Model 162B Mariner:

- U.S. Navy PBM-3 twin engine patrol bomber flying boat; 32 built (1942).
- One modified as XPBM-3E for AN/APS-15 radar development.
- U.S. Navy PBM-3R transport version with strengthened floor, passenger seating, and removed armament; 18 built (1942).
 

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Model 162C Mariner:

- U.S. Navy PBM-3C twin-engine patrol bomber flying boat with increased defensive armament, improved crew protection and added AN/APS-15 radar; 274 built (1943).
- One modified as XPBM-3D, prototype for the PBM-3D variant, utilizing upgraded engines and additional armament.
- One modified as XPBM-3S prototype for the PBM-3S variant.
- U.S. Navy PBM-3S anti-submarine warfare variant stripped for longer range, with fixed gun mounts and downrgraded armament (1943).
 

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Model 162C Mariner:

- Royal Air Force « Mariner I » or Mariner GR. Mk.1A; 32 built, never used operationally; some returned to the U.S Navy.
- U.S. Navy PBM-3B, former RAF Mariners after their return to the United States.
 

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Model 162D Mariner:

- U.S. Navy PBM-3D, an improved version with Norden bombsight, newer, stronger engines and new turrets; 259 built (1944).
 

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Model 162F Mariner:

- U.S. Navy XPBM-5 prototypes to evaluate new uprated engines and Hamilton Standard 3-bladed propellers; two built (1944).
- U.S. Navy PBM-5 improved version incorporating new Jet Assisted Take Off (JATO) bottles mounted on both sides of the aft fuselage; 628 built (1944).
 

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Model 162G Mariner:

- U.S. Navy XPBM-5A prototype with retractable tricycle landing gear; one built (1945).
- U.S. Navy PBM-5A amphibian version (only one in the series); 36 built and 4 Model 162F brought to "G" standard (1945).
 

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Model 166: Version of B-10/B-12 bomber series with continuous cockpit enclosure for the Netherlands; 40 built as Model 139WH-3 (1938) and 42 more as Model 139WH-3A (1939).
 

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Model 167: experimental twin-engine attack bomber designed by James S. McDonnell and competing against the Douglas DB-7 and the Stearman X-100 (U.S.A.A.C.'s Circular Proposal 39-460); one built (1939).
 

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Model 167F/167B Maryland: twin-engine attack bomber for export.

- 115 Model 167-F1 aircraft for France and designated there as Martin 167-A3 (1939)
- 100 Model 167-F2 aircraft for France and designated there as Martin 167-A3 (1940)
- 95 Model 167-F3 aircraft for France (armor-plated variant), many of which were diverted to RAF as Maryland I (Model 167-B3) and given British controls and instruments (1940).
- 150 Model 167-F4 aircraft for France (self-sealing fuel cells), all delivered to Britain as Maryland II (Model 167-B4) (1941).
 

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Model 170 Mars (former Model 160B): U.S. Navy XPB2M-1 four-engine long range patrol bomber prototype; one built (1941).

Later modified to transport configuration as the XPB2M-1R.
 

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Model 170A Mars: Long-range cargo transport for U.S. Navy; five built: "Hawaii Mars", "Philippine Mars", "Marianas Mars", "Marshall Mars" and "Hawaii Mars" (1945).
 

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Model 170B Mars:

- U.S. Navy JRM-2 variant with Pratt & Whitney engines instead of the JRM-1's Wrights; gross weight increased by 20,000 lbs; one built (1948).
- U.S. Navy JRM-3 with uprated Pratt Wasp Major "Corncob" engines (modification of all four remaining Model 170A aircraft).
 

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Model 170C Mars: four-engine 165,000 lb commercial flying boat project, with Day Plane, De Luxe Sleeper and Passenger-Cargo and all-cargo variants planned; none built (from 1944).
 

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Model 176: attack bomber proposal looking like a Maryland in profile view but with blended wings; not built (circa 1941).
 

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Model 177: lightweight twin-engined attack proposal (circa 1941); not built.
 

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Model 178: twin-engine bomber proposal with blended wings (1941); not built.
 

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Model 179 Marauder: B-26 Medium bomber for U.S. Army Air Force; initially company name "Martian" refused by Army; no prototype provided before production; 201 built (1941).
 

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Model 179A Marauder: version with larger guns in nose and tail, and provisions made to carry externally mounted torpedoes.

- 30 aircraft built as B-26A (1942).
- 109 aircraft built as B-26A-1 (1942).
- 52 of the latter allotted to the Royal Air Force as the Marauder Mk I.
 

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