Z SQUARE 7, A B-29 TRUE STORY

Zachary Taylor Nat'l Cemetery Memorial Page - PBM-5 Mariner

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Z Square 7 Crew Families
Z Square 7 Crew Cemeteries.
Missing Air Crew Report
Z Square 7 Crew Military Funeral
Memorial Lt Eugene M. Thomas Jr (Marion, Al)
Memorial Lt Francis X. Glacken (Cambridge, MA)
Memorial Lt Norman B. Bassett (Cornell University, Ithaca, NY)
Marcia Bassett McGrattan
Memorial Sgt George P. Demers (Lynn, MA)
Memorial Sgt George P. Demers (Lynn, MA)
Peter & Lillian Demers/Charlotte (Demers) Fiasconaro
Memorial Sgt Louis A. Dorio (Clarksville, VA)
HIRE OUR VETERANS!
POW-MIA-KIA Ceremony
500th Bomb Group, 73rd Wing Honor Roll
Bill Mauldin With Willie And Joe
Father John McBride
S/Sgt Kenneth O. Eslick with Photo Album
Sgt Jesse S. Klein. 41-13180
Frank Farr & Merseburg, Germany
"Lili Marlene" The Song!
"Lili Marlene" The B-17
"Lily Marlene" The B-24
"Lili Marlene" The B-24
Ivan Fail Introduction and "Long Before The Guns And Tanks."
Ivan Fail's "Tribute to the Queen"
American Battle Monuments Commission - Cemeteries
American Battle Monuments Commission - Memorials
NATIONAL WORLD WAR II MEMORIAL
THE MARINE CORPS WAR MEMORIAL (IWO JIMA )
KOREAN WAR VETERANS MEMORIAL
VIETNAM VETERANS MEMORIAL
M/Sgt Roy P. Benavidez, Vietnam Medal Of Honor
Frank Farr Poetry "November 2, 1944", "Old Men And The War", " Merseburg"
Some Pictures of World War 2
Zachary Taylor Nat'l Cemetery Memorial Pages Introduction
Zachary Taylor Nat'l Cemetery Memorial Crew Index
Zachary Taylor Nat'l Cemetery Memorial Page 1
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Zachary Taylor Nat'l Cemetery Memorial Page - B29 Superfortress
Zachary Taylor Nat'l Cemetery Memorial Page - B26 Marauder
Zachary Taylor Nat'l Cemetery Memorial Page - B25 Mitchell
Zachary Taylor Nat'l Cemetery Memorial Page - B24 Liberator
Zachary Taylor Nat'l Cemetery Memorial Page - B17 Flying Fortress
Zachary Taylor Nat'l Cemetery Memorial Page - C87 Liberator Express
Zachary Taylor Nat'l Cemetery Memorial Page - PBM-5 Mariner
Zachary Taylor Nat'l Cemetery Memorial Page - A20 Havoc Attack Bomber
Zachary Taylor Nat'l Cemetery Memorial Page - C47 Transport
Zachary Taylor Nat'l Cemetery Memorial Page - P61 Black Widow
Zachary Taylor Nat'l Cemetery Memorial Page - A26 Invader
GIVE OUR VETERANS JOBS!!
Ivan Fail's "The Tuskegee Airmen"
Airmen Medal Of Honor Memorial
Memorial Page #1
Memorial Page #2
Memorial Page #3
Memorial Page #4
Memorial Page #5
Memorial Page #6
The Navajo Code Talkers & Native American Medals Of Honor
Ivan Fail's "D Day, The Normandy Invasion"
B-29 Crew Positions & Specifications
About The Book
C. Clayton Thompson Bookseller
Ivan Fail's "When The Mustangs Came"
Contacts
Ivan Fail "The Eighteen Wheeler's Hymn"
Awards
Lompoc Veterans Memorial Building with photo album
Ivan Fail's "Against All Odds - Mission Complete"
Ford Tolbert by Sallyann
Ford Tolbert Pictures
A Tribute to Lt Raymond "Hap" Halloran
Lt Raymond "Hap" Halloran
Colonel Gregory "Pappy" Boyington, USMC, The Black Sheep Squadron
Lt Halloran Eulogy for Colonel Boyington
Omori POW Camp
Ivan Fail's "A Salute To Lt. Holguin"/ "Shoo Shoo Baby"
Great Bend, Kansas B-29 Memorial
General Lemay's biography including a B-29 nose art photo album
THE GENERAL AND MRS CURTIS LEMAY FOUNDATION
March 9 and 10, 1945 Over Tokyo
Lt "Hap" Halloran on March 10, 1945
General Earl Johnson
General Earl Johnson Biography
313th Bomb Wing Mining Missions
Lt Robert Copeland, copilot, Z Square 8
Pyote Bomber Base With A Photo Album
History of "Diamond Lil" With A Photo Album
History of "FIFI" With A Photo Album
"Hap" Halloran induction Combat Airman Hall of Fame
Blackie Blackburn with a photo album
Hap's Memorable Flight On FIFI
C. Douglas Caffey, A WW2 Veteran, Book Of Poetry
C. Douglas Caffey Collection Of Poetry
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C. Douglas Caffey on Post Traumatic Stress Disorder
C. Douglas Caffey With More on PTSD
C. Douglas Caffey Memorial Day Flying The Flag
C. Douglas Caffey Saying Goodbye To America
OUR VETERANS NEED WORK!
Pearl Harbor with Photo Album
The Pacific Theater
Battle of Saipan, Mariana Islands
Saipan Medals of Honor
Battle of Tinian, Mariana Islands
Tinian Medals of Honor
Battle of Guam, Mariana Islands
Guam Medals of Honor
Battle of Iwo Jima
Iwo Jima Medals of Honor
Cpl Ira Hayes, USMC
Battle of Okinawa
Okinawa Medals of Honor
Japanese Surrender
Navy Ships At Surrender Ceremonies
Ivan Fail's "The Saga Of The Superfortress"
Ivan Fail's "The Silent Sentries"
Last Page

PBM-5 Mariner

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The PBM Mariner never achieved the popularity of the PBY Catalina. Martin's PBM Mariner offered considerably greater military capability at the expense of increased complexity. Unlike the PBY, which had relatively few problems in service, the PBM suffered from a number of problems, many of them related to the engine. These were finally overcome when the more powerful P&W R-2800s replaced the Wright R2600s in 1944.

The Navy contracted for the XPBM-1 in June 1937. Prior to this time, Martin had flown a quarter scale, piloted "flying model," the Martin 162A, to explore hydrodynamic and aerodynamic characteristics. The XPBM-1 first flew early in 1939 but, in spite of the testing with the 162A, experienced problems both on the water and in flight. Gull wings, twin tails and retractable tip floats were its most distinguishing features. Hull redesign in 1940 and addition of dihedral to the horizontal tail, resulting in the vertical surfaces being canted inward, were major changes introduced to correct the problems in the XPBM-1. They were incorporated in the 20 PBM-1s, which followed. The first of the 1s to enter the fleet was assigned to VP-55 in September 1940.

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Along with the PBM-1s, one XPBM-2 was ordered-modified to be a catapultlaunched long-range patrol seaplane. While tests were satisfactory, the concept was not pursued. The next service aircraft were the 3 series, delivered from 1942 through mid-1944. Initially delivered as PBM-3s, they featured improved armament and engines, and could be easily recognized by the fixed wing-tip floats replacing the retractable floats of the 1s. Many of the early 3 series were converted to unarmed 3R transports. 3C patrol planes went to fleet squadrons, followed by stripped 3S ASW versions and, finally, 3Ds with improved R-2600 engines. Radar had been added in a large radome behind the cabin, starting with the 3Cs. Improved versions of radar were used as they became available. With the R-2800 engine, the subsequent PBM-5 series was destined for service long after WW II. Initial 5s were followed by 5Es with improved radar, and in the postwar period a limited number of 5Gs were delivered with a new radar in a teardrop radome. A prototype amphibian version of the 5 was proposed in April 1944, but was not flown until December 1945. Thirty-six were produced before production stopped in 1949. Up to that time, 1,366 Mariners had been built.

Improvements in the 5 series led to ASW PBM-5S conversions starting late in 1949, while the 5As were converted to unarmed transports. Both models served worldwide wellinto the Fifties, the 5Ss being supplanted by 5S2s with updated equipment, before the last fleet squadron, VP-50, relinquished them for P5M Marlins in June 1956. Individual Mariners continued in Navy service to meet special needs for a few more years, the last one flying being a hydro-ski test aircraft. Mariners were also transferred and served with the Coast Guard and several foreign countries.

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The Martin PBM-3 / PBM-5 Mariner was a World War 2 era flying boat used in the maritime. The Mariner first appeared in 1937 and it first flew in 1939 as the Martin Model 162 project, giving birth to the prototype XPBM-1 as a twin engine flying boat with a high-mounted monoplane gull wing. Martin designed a ‘splash’ with their PBY Catalina flying boat series in operation with the United States Navy.

 

It had twin tail rudders, retractable stabilizing floats and a deep hull-like fuselage. Its earlier versions featured 2 x Wright Cyclone R-2600-6 radial engines which produced a total output of 1,600 horsepower. Just a year after it came into the WW2 scene, it became a mainstay of the Naval Air Transport Service as it was the first aircraft to provide a vital link between Hawaii and the South Pacific. The PBM-3 was the first in the series to feature fixed floats; a lengthened engine nacelle also added to this model series allowed for a greater external ordnance load to be carried.

A crew of 7 to 9 men could be accommodated in the Martin PBM-3 / PBM-5 Mariner. Armament consisted of a twin 12.7 mm gun mounting at the bow, tail and dorsal positions with an additional 2 x 12.7 mm machine guns at the beam (waist) positions firing through hatches. The bomb load was a pretty respectable 8,000 pounds (PBM 3D). The PBM-3 eventually became the first widely-produced and modified model in the series with unarmed transport and passenger transport derivatives joining the base production model. It had an appropriate and consistent surface detail which was engraved and raised. This was a product of thoughtful engineering to join wing to fuselage and horizontal tail surfaces. It also featured fixed under wing floats. About 1,700 aircraft were produced which included various variants. They were used by both the American and the British forces.Despite being of a more modern design and an equally capable performer, the Mariner was never able to gather the top spot which was always with the Catalina series aircraft.

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PBM-5 Mariner

Specifications
Power Plant: Two R-2800-34 Pratt & Whitney engines
Maximum Speed: 178 kn
Service Ceiling: 20,800 ft
Combat Radius: 750 n.mi/kn
Stall Speed:
   Power Off
   Power Off - No Fuel
   Power On

84.1
71.9
72.1
Maximum Speed/Alt: 178 kn/9,500 ft
Take-off Time: 55.6 sec
Rate of climb -- sea level: 590 ft/min
Time-to-climb 10,000 ft: 18.6 min
Time-to-climb 20,000 ft: 56.4 min
Combat Range/V av 1,500 ft. n.mi/kn: 1,880/118
Weights:
   Empty
   Basic
   Design
   Combat
   Max T.O.
   Max L.D.

35,500
36,700
56,000
51,105
60,300 (smooth), 48,000 (rough)
60,300 (smooth), 48,000 (rough)
Dimensions:
   
Wing Area
   Span
   Length
   Height
   Tread
   M.A.C.

1,408 sq ft
118 ft
79 ft 10 in
24 ft 10 in
10 ft
13 ft 1 in
Ordnance:
   Guns



   Bombs



   D.B.

   Mines

Two .50 Cal. (Nose Turret) with 800 rds.
Two .50 Cal. (Tail Turret) with 2000 rds.
Mark 18-4 Gunsights in Turrets

12 x 100 lbs
8 x 1,000 lbs
8 x 1,600 lbs

8 x 325 lbs

8 x Mk 26-1
4 x Mk 13 or 13-5
4 x Mk 24
Mark 23-7 Bombsight
Electronics:
   LH-HF-VHF
   Compass
   Transmitter
   Marker Beacon
   Altimeter
   IFF
   Search Radar
   NAVIG
   ECM
   Sonobuoy Rec
   Searchlight
   MAD
   Wire Recorder
   Bombing Equipment

AN/ARC-1, -5
SCR-269-F, AN/ARN-7
AN/ART-13
AN/ARN-8
AN/APN-1
AN/APX-2, -6, -8
AN/APS-2F, -15A
AN/APN-4
AN/APA-11, -38, AN/APR-4
AN/ARR-31
L-11
AN/ASQ-1
13-A-3-J
AN/APA-5A

 

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