You are not logged in.

1

Friday, December 19th 2008, 4:07pm

Consolidated PB2Y-1 Albatross

A large long-ranged 4-engined seaplane patrol bomber for the USN.

Consolidated PB2Y-1 Albatross

General Type:
Airplane = 1
Airship = 2
Orbiter = 3
1

Year of First Flight: 1939

Description

Flying Boat / Seaplane
Monoplane
Conventional Fuselage

A large seaplane patrol bomber, using the P&W RD-1650-32 diesel radial, the Pratt & Whitney produced version of the Junkers Jumo-208D. Armed with 7 0.50 machineguns (two each in dorsal, and tail turrets, with 1 each in nose and beam positions), and equipped with crew armor (+1500 lbs), self-sealing fuel tanks (+3500 lbs), and with radio-direction finding gear (+400 pounds). Can carry up to 16 500 pound bombs or depth bombs in cells in the inner wings.







Characteristics:

Weight (maximum) 72,000 lbs
Weight (empty) 40,023 lbs

Length 75 ft
Wingspan 140 ft
Wing Area 2,200 sq ft
Sweep 0 degrees

Engines 4
P&W RD-1650-32
Piston

1,521 hp
at 12,000 ft


Crew 10


Typical cost $0.143 million in 1939
Total number procured 2000


Performance:

Top Speed 233 kts = 268 mph
at 12,000 ft
Mach N/A

Operational Ceiling 28,500 ft

Range 3,200 nm = 3,685 miles
with 6,719 lbs payload
8,124 lbs released at halfway point

Climb 1,053 fpm

Cruise 180 kts = 207 mph
at 18,000 ft

Corner Speed 127 KIAS =
152 kts at 12,000 ft
Mach N/A
Turning Rate 14.9 deg/sec
Radius 1,976 ft



Internal Data:

Intake / Fan Diameter 10.75 ft

Bypass Ratio 100

Engine Weight 1875 lbs
Overall Efficiency 27 percent

Structural Factor 1.00

Number of Wings 1
Number of Fuselages 1

Limiting Airspeed 250 kts
Wing Ultimate g Load 3.00 g
Wing Taper 0.1
Wing Thickness at Root 2.8 ft

Tail / Canard Factor 0.4

Number of Nacelles 4
Length 6 ft
Diameter 4.5 ft
Fullness 0.5

Fuselage Diameter 9 ft
Fuselage Fullness 0.45

Pressurized Volume 0 percent
Cargo Decks 0

Cleanness 65 percent
Unstreamlined section 12.7 sq ft

User equipment 9,400 lbs

2

Friday, December 19th 2008, 5:19pm

I'm not really sure how to visualise it. A larger version of the PBY or more like a proper flying boat? For a proper flying boat the fuselage diameter will be 15-18ft or so given the considerable depth.

3

Friday, December 19th 2008, 5:56pm

I'm thinking of it with a hull form more like the Dornier Do-216 (though without the side bulges, and using larger stabilizing floats), not the huge sides like the historical Coronado. Given the height of the somewhat larger Do-216 at 26 feet with tail, and a somewhat oval shape (taller than it is broad), a diameter of 12 feet might be OK (15 feet high, 9 feet wide).


Aircraft Type or Name:

Consolidated PB2Y-1 Albatross

General Type:
Airplane = 1
Airship = 2
Orbiter = 3
1

Year of First Flight: 1939

Description

Flying Boat / Seaplane
Monoplane
Conventional Fuselage

A large seaplane patrol bomber, using the P&W RD-1650-32 diesel radial, the Pratt & Whitney produced version of the Junkers Jumo-208D. Armed with 7 0.50 machineguns (two each in dorsal, and tail turrets, with 1 each in nose and beam positions), and equipped with crew armor (+1500 lbs), self-sealing fuel tanks (+3500 lbs), and with radio-direction finding gear (+400 pounds). Can carry up to 10 500 pound bombs or depth bombs in cells in the inner wings.







Characteristics:

Weight (maximum) 72,000 lbs
Weight (empty) 41,241 lbs

Length 75 ft
Wingspan 140 ft
Wing Area 2,200 sq ft
Sweep 0 degrees

Engines 4
P&W RD-1650-32
Piston

1,521 hp
at 12,000 ft


Crew 10


Typical cost $0.149 million in 1939
Total number procured 2000


Performance:

Top Speed 227 kts = 261 mph
at 12,000 ft
Mach N/A

Operational Ceiling 28,000 ft

Range 3,200 nm = 3,685 miles
with 4,901 lbs payload
5,962 lbs released at halfway point

Climb 1,062 fpm

Cruise 180 kts = 207 mph
at 18,000 ft

Corner Speed 127 KIAS =
151 kts at 12,000 ft
Mach N/A
Turning Rate 15.0 deg/sec
Radius 1,953 ft



Internal Data:

Intake / Fan Diameter 10.75 ft

Bypass Ratio 100

Engine Weight 1875 lbs
Overall Efficiency 27 percent

Structural Factor 1.00

Number of Wings 1
Number of Fuselages 1

Limiting Airspeed 250 kts
Wing Ultimate g Load 3.00 g
Wing Taper 0.1
Wing Thickness at Root 3 ft

Tail / Canard Factor 0.4

Number of Nacelles 4
Length 6 ft
Diameter 4.5 ft
Fullness 0.5

Fuselage Diameter 12 ft
Fuselage Fullness 0.45

Pressurized Volume 0 percent
Cargo Decks 0

Cleanness 65 percent
Unstreamlined section 12.7 sq ft

User equipment 9,400 lbs

4

Friday, December 19th 2008, 6:08pm

(15 feet high, 9 feet wide)

((15^2 + 9^2) / 2 ) ^ 1/2 = 12.4ft average diameter of the ellipse.

5

Friday, December 19th 2008, 6:10pm

Aircraft Type or Name:

Consolidated PB2Y-1 Albatross

General Type:
Airplane = 1
Airship = 2
Orbiter = 3
1

Year of First Flight: 1939

Description

Flying Boat / Seaplane
Monoplane
Conventional Fuselage

A large seaplane patrol bomber, using the P&W RD-1650-32 diesel radial, the Pratt & Whitney produced version of the Junkers Jumo-208D. Armed with 7 0.50 machineguns (two each in dorsal, and tail turrets, with 1 each in nose and beam positions), and equipped with crew armor (+1500 lbs), self-sealing fuel tanks (+3500 lbs), and with radio-direction finding gear (+400 pounds). Can carry up to 10 500 pound bombs or depth bombs in cells in the inner wings.







Characteristics:

Weight (maximum) 72,000 lbs
Weight (empty) 41,465 lbs

Length 75 ft
Wingspan 140 ft
Wing Area 2,200 sq ft
Sweep 0 degrees

Engines 4
P&W RD-1650-32
Piston

1,521 hp
at 12,000 ft


Crew 10


Typical cost $0.150 million in 1939
Total number procured 2000


Performance:

Top Speed 227 kts = 261 mph
at 12,000 ft
Mach N/A

Operational Ceiling 28,000 ft

Range 3,200 nm = 3,685 miles
with 4,607 lbs payload
5,609 lbs released at halfway point

Climb 1,059 fpm

Cruise 180 kts = 207 mph
at 18,000 ft

Corner Speed 127 KIAS =
151 kts at 12,000 ft
Mach N/A
Turning Rate 15.0 deg/sec
Radius 1,953 ft



Internal Data:

Intake / Fan Diameter 10.75 ft

Bypass Ratio 100

Engine Weight 1875 lbs
Overall Efficiency 27 percent

Structural Factor 1.00

Number of Wings 1
Number of Fuselages 1

Limiting Airspeed 250 kts
Wing Ultimate g Load 3.00 g
Wing Taper 0.1
Wing Thickness at Root 3 ft

Tail / Canard Factor 0.4

Number of Nacelles 4
Length 6 ft
Diameter 4.5 ft
Fullness 0.5

Fuselage Diameter 12.4 ft
Fuselage Fullness 0.45

Pressurized Volume 0 percent
Cargo Decks 0

Cleanness 65 percent
Unstreamlined section 12.7 sq ft

User equipment 9,400 lbs

6

Saturday, December 20th 2008, 3:05pm

A better mental image than the Do-216 might be a B-24, with the wing moved to the very top of the fuselage and a flying boat keel and step added beneath the B-24s fuselage. It IS a Consolidated product, after all, and could be a stepping-stone to the B-24 here in WW (the B-24 is a bit smaller, having to land on land, and has a higher aspect-ratio wing).

7

Saturday, December 20th 2008, 4:07pm

Something like the Consolidated XP4Y but with four smaller engines and a slightly smaller hull. The larger hull does mean better seakeeping and keeps the props well away from spray.

8

Sunday, December 21st 2008, 2:22pm

Yeah, the R-3350 isn't quite in the inventory yet. Wright's working on it.