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. 2017-11-20

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MARTIN  PBM-5A  Mariner

 
     
  The story which didn't happen ... outside Atlantic Air Combat  
     
     
  See also : AAC Data Sheet
 PBM5A Marlin (not ready)
 PBM5B Marlin (not ready)
Articles :
 ARTOP Aero-Topográfica
 
Similar Aircrafts
 P5M2B Marlin
 
 
     
-   -

INTRODUCTION

The PBM Mariner was a patrol-bomber flying boat which entered service with the US Navy in 1940.  Developped as an ASW platform (PBM-5S) and also as an ASW amphibian aircrafts (PBM-5A), it was used post war by a few countries (see: PBM Seaplane) :

Country = = QTY Aircraft Name 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967

USN: VP53 NA ASW (---) PBM5A Mariner 1948 1949                        

USN: VP53 NA ASW (---) PBM5S Mariner 1950 1956                        

Netherlands NA ASW (17) PBM5A Mariner 1955 1960 >> >> >> >> 1960              

Argentina NA ASW (9) PBM5 Mariner 1955 1964 >> >> >> >> >> >> >> >> 1964      
Uruguay NA ASW (3) PBM5S2 Mariner 1956 1965 1956 >> >> >> >> >> >> >> >> 1965    

Topografica NA TA 2 PBM5 Mariner 1958 ??     1958                  

Besides Argentina and especially Uruguay, the PBM Mariner was thus also used by :

Netherlands : from Biak Air Base in Dutch New Guinea only

Topografica : The use made by Topografica, a Portuguese airline, needs to be further explored.   Initiated in 1958, the company suffered the loss of one of their two aircrafts in november 1958 so it might have ended operations of their PBM5 at the same time.

THE PBM-5 MARINER IN ATLANTIC AIR COMBAT

Availability

The amphibian variant will be available whith its historic operators, including a fantasy airline, by fictionally lenthening its operational life with theses Naval Air Arms.   In addition, it will be allocated with the Icelandic Coast Guard.

Country = = QTY Aircraft Name 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967

USN: VP53 NA ASW 8 PBM5A Mariner 1948

Iceland CG ASW 2 PBM5A Mariner 1955

Netherlands NA ASW 16 PBM5A Mariner 1955 1960 >> >> >> >> 1960

Argentina NA ASW 8 PBM5A Mariner 1955 1964 >> >> >> >> >> >> >> >> 1964
Uruguay NA ASW 4 PBM5A Mariner 1956 1965 1956 >> >> >> >> >> >> >> >> 1965

Expedite NA TA 3 PBM5B Mariner 1958 ??     1958

Variants

PBM5A

fully armed amphibian variant for all military operators

PBM5B

unarmed amphibians for civilian/airline purposes.  A Lisbon based "airline" will mimick the activities of ARTOP with scheduled flights between Lisbon, London, Azores, Madeira, Canary, Cape Verde and Dakar.  For example:

  Aircraft #1 Aircraft #2 Aircraft #3
Monday  Lisbon London  Lisbon Azores  Lisbon London
Tuesday  London Azores  Azores Canary  Lisbon Dakar
Wednesday  Azores Lisbon  Canary C.Verde  Darkar C.Verde
Thursday  Lisbon London  C.Verde Canary  C.Verde Madeira
Friday  London Madeira  Canary Madeira  Madeira Lisbon
Saturday  Madeira Lisbon  Madeira Lisbon  Lisbon London
Sunday  - - -  - - -  - - -
Monday  Lisbon London  Lisbon Madeira  Lisbon London
Tuesday  London Azores  Madeira Canary  Lisbon Dakar
Wednesday  Azores Lisbon  Canary C.Verde  Darkar C.Verde
Thursday  Lisbon London  C.Verde Canary  C.Verde Madeira
Friday  London Madeira  Canary Madeira  Madeira Lisbon
Saturday  Madeira Lisbon  Madeira Lisbon  Lisbon London
Sunday  - - -  - - -  - - -
Monday  Lisbon London  Lisbon Azores  Lisbon London
Tuesday  London Azores  Azores Canary  Lisbon Dakar
Wednesday  Azores Lisbon  Canary C.Verde  Darkar C.Verde
Thursday  Lisbon London  C.Verde Canary  C.Verde Madeira
Friday  London Madeira  Canary Madeira  Madeira Lisbon
Saturday  Madeira Lisbon  Madeira Lisbon  Lisbon London
Sunday  - - -  - - -  - - -

General Specifications

Thus both the PBM5A and fictional PBM5B are amphibian aircrafts.   The details of the AAC iterations are shown against historical variants and its sibling, the P5M Marlin.  Radar and engine specs will be defined later as "standard" AAC equipment items.

PBM Variants PBM-3C PBM3S PB3D PBM5 PBM5S PBM5S2 PBM5A PBM5B XP5M1 P5M1 P5M2 P5M2B
Role Patrol ASW Patrol Patrol ASW ASW ASW Airline ASW ASW ASW ASW
Length 80'00" 80'00" 80'00" 80'00" 80'00" 80'00" 79'10" 79'10" 101'01" 101'01" 101'01" 101'01"
Wingspan 118'00" 118'00" 118'00" 118'00" 118'00" 118'00" 118'00" 118'00" 118'02" 118'02" 118'02" 118'02"
Height 27'06" 27'06" 27'06" 27'06" 27'06" 27'06" 27'06" 27'06" 30'11" 30'11" 30'11" 30'11"
Crew 9 9 9 9 9 9 9 9 8 8 8 8
Passengers - - - - - - - 50 - - - -
Radar ASV15 ASV15 APS15 APS15 APS15 APS31 APS31 APS31 APS44 APS44 APS80 APS80
Engine: 2 R2600-12 R2600-12 R2600-22 R2800-34 R2800-34 R2800-34 R2800-34 R2800-34 R3350-26 R3350-30 R3350-32 R3350-32
Engine: power 1700.hp 1700.hp 1900.hp 2100.hp 2100.hp 2100.hp 2100.hp 2100.hp 2800.hp 3250.hp 3400.hp 3450.hp
Engine: SFC 0.39 0.39 0.39 0.34 0.34 0.34 0.34 0.34 0.35 0.35 0.35 0.35
Weight: empty 32330.lb 32330.lb 32330.lb 34000.lb 34000.lb 34000.lb 34000.lb 34000.lb 39075.lb 48383.lb 48383.lb 48383.lb
Weight: MTO 56000.lb 56000.lb 56000.lb 60000.lb 60000.lb 60000.lb 60000.lb 60.000.lb 60000.lb 85000.lb 85000.lb 85000.lb
Fuel (AAC)(OK) - - - - 2253.gal 2253.gal 2253.gal 2253.gal 2342.gal 2342.gal 2342.gal 2342.gal
Range 1850.Nm 2600.Nm 1950.Nm 2350.Nm 2350.Nm 2350.Nm 2362.Nm 2362.Nm 2070.Nm 2070.Nm 2070.Nm 2070.Nm
Fuel : Extra (÷2) 656.gal 656.gal 656.gal 656.gal 656.gal 656.gal 656.gal 656.gal 958.gal 958.gal 958.gal 958.gal
Speed : max 170 kn 170 kn 170 kn 170 kn 170 kn 170 kn 170 kn 170 kn 220.Kn 240.kn 240.Kn 240.kn
Speed : cruise 130.kn 130.kn 130.kn 130.kn 130.kn 130.kn 130.kn 130.kn 140.kn 151.kn 151.kn 151.kn
Ceiling : 17000.ft 17000.ft 17000.ft 20000.lt 20000.ft 20000.ft 20000.ft 20000.ft 21000.ft 21000.ft 21000.ft 21000.ft
Climb : ft/min 800 800 800 800 800 800 800 800 1200 1580 1580 1580
Guns: nose 2×.50cal 1×.50cal 2×.50cal 2×.50cal 2×.50cal 2×.50cal 2×.50cal - 2×20mm - - -
Guns: dorsal 2×.50cal - 2×.50cal 2×.50cal 2×.50cal 2×.50cal 2×.50cal - 2×20mm - - -
Guns: waist/Pt 1×.50cal 1×.50cal 1×.50cal 1×.50cal - - - - - - - -
Guns: waist/Sb 1×.50cal 1×.50cal 1×.50cal 1×.50cal - - - - - - - -
Guns: tail 1×.50cal 1×.50cal 2×.50cal 2×.50cal 2×.50cal 2×.50cal 2×.50cal - 2×20mm 2×20mm - 2×20mm
Playload 2000.lb 4000.lb 8000.lb 8000.lb 8000.lb 8000.lb 9120.lb 9120.lb 8000.lb 8000.lb 10000.lb 17120.lb

PBM-5S 2253 gal fuel capacity is based on BuAer drawings showing 2702 US gal (+   786 US gal in bomb bay cells).
P5M2    2342 gal fuel capacity is based on BuAer drawings showing 2809 US gal (+ 1160 US gal in bomb bay cells)
SFC is then based upon these factors.  Cruise power and fuel weight ratios are AAC's standard (see: Measurements)

PBM5   : 2100hp × 2 × 66% × 0.34lb/hp/hr × [2362Nm÷130Kn=18.1669 hr] = 17122 lb ÷7.6lb/gal = 2253 gal (revised)

P5M2   : 3400hp × 2 × 66% × 0.29lb/hp/hr × [2070Nm÷151Kn=13.6755 hr] = 17799 lb ÷7.6lb/gal = 2342 gal (revised)

Defensive Armament

The defensive armament of the AAC PBM5A remains consistent with historical background.  Ammunition weight ratio is AAC's standard

Variants PBM5A   PBM5B   P5M2B  
Genre Amphibian   Amphibian   Flying Boat  
Role ASW/SAR   Airline   ASW/SAR  
Gun turret: nose [500rpg] 2×.50cal 253.lb - - - -
Gun turret: top [500rpg] 2×.50cal 253.lb - - - -
Gun turret: tail [500rpg] 2×.50cal 253.lb - - [300rpg] 2×20mm 344.lb

Offensive Armament

The offensive armament will differ from reality, with cheat HVAR rockets being added and a useful load brought higher up.  The loadouts of the PBM5A is made more varied in AAC than it was in real life, but nevertheless within dimensional and weight constraints : 2000 lbs in each bomb bay, or 2200 lbs under each wing pylon with only HVAR coming on top of one of these basic loadouts.  Fuel and ammunition weight ratios are set arbitrarily (see: Measurements).  Empty weight is cheated in order to combine maximum fuel and maximum weapons load.

Fuel and ammunition weight ratios are set arbitrarily (see: Measurements), and the deduction of the weight of gun turrets is based on the B-17G Bendix chin turret (438 lbs).

Variants PBM5A   PBM5B   P5M2B  
Genre Amphibian   Amphibian   Flying Boat  
Role ASW/SAR   Airline   ASW/SAR  
Crew (200 lb/@) 9 1800.lb 6 1200.lb 8 1600.lb
Passengers (260 lb/@) - - 50 13000.lb - -
Radar Search/L2 - Search/L2 - Search/L2 -
Engine: 2 R2800 - R2800 - R3350 -
Engine: SFC 0.37 - 0.37 - 0.35 -
Weight: empty (cheat value) 29149 lb (cheat value) 26628 lb (cheat value) 48137.lb
Fuel (AAC) 2253.gal 17122.lb 2253.gal 17122.lb 2342.gal 17799.lb
Gun turret: ammo/nose [500rpg] 2×.50cal 253.lb [no turret] (-841.lb) - -
Gun turret: ammo/top [500rpg] 2×.50cal 253.lb [no turret] (-840.lb) - -
Gun turret: ammo/tail [500rpg] 2×.50cal 253.lb [no turret] (-840.lb) [300rpg] 2×20mm 344.lb
Playload   9120.lb - (passengers)   17120.lb
MTOW (AAC) - 57950 lb - 57950 lb - 85000.lb
MTOW (historic) - 57950 lb - 57950 lb - 85000.lb
Internal Weapons 2 Bomb Bays Total Load Historic Historic 2 Bomb Bays Total Load
                 
Depth Charge Mk11 2×[4×] 320.lb 3840.lb   16×  320.lb 2×[6×] 320.lb 3840.lb
Depth Charge Mk47 2×[4×] 350.lb 2800.lb   8×  350.lb 16×  350.lb 2×[6×] 350.lb 4200.lb
Depth Charge Mk49 2×[4×] 650.lb 5200.lb   8×  650.lb   2×[4×] 650.lb 5200.lb
Depth Charge Mk90N  // // //   2×1250.lb 2×[1×] 1250.lb 2500.lb
Depth Charge Mk90A // // //   Fake 2×[1×] 4000.lb 8000.lb
Bombs: M118 2×[1×] 3000.lb 6000.lb   Fake Fake 2×[1×] 3000.lb 6000.lb
Bombs: M66 2×[2×] 2000.lb 8000.lb   4×2000.lb 4×2000.lb 2×[2×] 2000.lb 8000.lb
Bombs: M65 2×[4×] 1000.lb 8000.lb   8×1000.lb 8×1000.lb 2×[4×] 1000.lb 8000.lb
Bombs: M117 2×[2×] 750.lb 3000.lb     2×[4×] 750.lb 6000.lb
Bombs: M64 2×[6×] 500.lb 6000.lb   8×  500.lb 16×  500.lb 2×[6×] 500.lb 6000.lb
Bombs: M57 2×[6×] 250.lb 3000.lb     2×[9×] 250.lb 4500.lb
Bombs: M30 2×[12×] 100.lb 2400.lb 12×  100.lb   2×[16×] 100.lb 3200.lb
Bombs: BLU11B.Napalm 2×[2×] 500.lb 2000.lb     2×[2×] 500.lb 2000.lb
Bombs: BLU27B.Napalm 2×[2×] 750.lb 3000.lb     2×[2×] 750.lb 3000.lb
Bombs: BLU69B.FAE 2×[2×] 250.lb 1000.lb     2×[4×] 250.lb 2000.lb
Bombs: BLU72B.FAE 2×[2×] 500.lb 2000.lb     2×[4×] 500.lb 4000.lb
Mines : Mk56 2×[2×] 2000.lb 8000.lb   2×2000.lb 2×[2×] 2000.lb 8000.lb
Mines : Mk13 2×[2×] 1000.lb 4000.lb   4×1000.lb   2×[4×] 1000.lb 8000.lb
Torpedo:ASS/Mk13 //   //   4×2000.lb 2×[2×] 2000.lb 8000.lb
Torpedo:ASS/MkXIV //   //     2×[2×] 1400.lb 5600.lb
Torpedo:ASW/Mk30 2×[2×] 650.lb 2600.lb   Fake   2×[2×] 650.lb 2600.lb
Torpedo:ASW/Mk43 2×[2×] 370.lb 1480.lb   Fake   2×[4×] 370.lb 2960.lb
Torpedo:ASW/Mk44 2×[2×] 450.lb 1800.lb   Fake   2×[2×] 450.lb 1800.lb
Torpedo:ASW/Mk46 2×[2×] 500.lb 2000.lb   Fake   2×[2×] 500.lb 2000.lb
Liferaft 533mm 2×[4×] 100.lb 800.lb     2×[6×] 100.lb 1200.lb
External Weapons Wing Pylons 2×1 - Inner Historic Historic Wing Pylons 2× 4 - Outer
Depth Charge Mk11 2×[1×] 320.lb 640.lb   Fake   2×[4×] 320.lb 2560.lb
Depth Charge Mk47 2×[1×] 350.lb 700.lb   Fake   2×[4×] 350.lb 2800.lb
Depth Charge Mk49 2×[1×] 650.lb 1300.lb   Fake   2×[4×] 650.lb 5200.lb
Bombs: M66 2×[1×] 2000.lb 4000.lb   Fake   // // //
Bombs: M65 2×[1×] 1000.lb 2000.lb   Fake 8×1000.lb 2×[4×] 1000.lb 8000.lb
Bombs: M117 2×[1×] 750.lb 1500.lb   Fake   2×[4×] 750.lb 6000.lb
Bombs: M64 2×[1×] 500.lb 1000.Lb   Fake   2×[4×] 500.lb 4000.lb
Bombs: M57 2×[1×] 250.lb 500.lb   Fake   2×[4×] 250.lb 2000.lb
Bombs: M30 2×[1×] 100.lb 200.lb   Fake   2×[4×] 100.lb 800.lb
Bombs: BLU11B.Napalm 2×[1×] 500.lb 2000.lb   Fake   2×[4×] 500.lb 4000.lb
Bombs: BLU27B.Napalm 2×[1×] 750.lb 1500.lb   Fake   2×[4×] 750.lb 6000.lb
Bombs: BLU69B.FAE 2×[1×] 250.lb 500.lb   Fake   2×[4×] 250.lb 2000.lb
Bombs: BLU72B.FAE 2×[1×] 500.lb 1000.Lb   Fake   2×[4×] 500.lb 4000.lb
Mines : Mk56 2×[1×] 2000.lb 4000.lb   Fake   // // //
Mines : Mk13 2×[1×] 1000.lb 2000.lb   Fake 8×1000.lb 2×[4×] 1000.lb 8000.lb
Torpedo:ASS/Mk13 2×[1×] 2000.lb 4400.lb   2×2200.lb   // // //
Torpedo:ASS/MkXIV 2×[1×] 1400.lb 2800.lb   Fake   // // //
Torpedo:ASW/Mk30 2×[1×] 650.lb 1300.lb   Fake   2×[4×] 650.lb 5200.lb
Torpedo:ASW/Mk43 2×[1×] 370.lb 740.lb   Fake   2×[4×] 370.lb 2960.lb
Torpedo:ASW/Mk44 2×[1×] 450.lb 900.lb   Fake   2×[4×] 450.lb 3600.lb
Torpedo:ASW/Mk46 2×[1×] 500.lb 1000.lb   Fake   2×[4×] 500.lb 4000.lb
    Fantasy Installation  Same pylons, thus bombs or HVAR
HVAR & Sonobuoys Special  Rails 2× 4 - Outer Historic Historic Wing Pylons 2× 4 - Outer
HVAR AR5" 2×[4×] 140.lb 1120.lb   Fake 8×HVAR 2×[4×] 140.lb 1120.lb
HVAR RP3 2×[4×] 80.lb 640.lb   Fake Fake 2×[4×] 80.Lb 640.lb
Sonobuoys 2×[4×] 40.lb 320.lb   Fake Fake 2×[4×] 40.lb 320.lb

Offensive Armament Illustrated - See also : PBM/P5M Animated comparison

OTHER ILLUSTRATIONS

PBM-5A Profiles

PBM-5R Profiles

 
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