| Specification: |
PBY-5A |
PBY-6A |
| Wing span |
104’
0" |
104’
0" |
| Length
(over-all) |
63’
10 7/16" |
62’
11" (63’ 6") |
| Height
over Wing |
13’ 5
½" |
|
| Height (on
landing gear with propeller blade vertical at top) |
21’
01" (20’ 2") |
20’
01" |
| Height to
top of rudder |
|
22’
04" (22’ 6") |
| Wings |
------------------------- |
-------------------- |
| Airfoil
Section |
NACA 21 |
NACA 21 |
| Chord at
root |
15’
0" |
|
| Chord at tip |
10’ 0" |
|
| Incidence |
6 deg positive |
|
| Dihedral (outer panel taper) |
2 deg 20’ |
|
| Sweepback (at outer panel) |
2 deg 58’ |
|
| Area (less ailerons) |
1300 sq ft |
|
| Ailerons (total) |
100 sq ft |
|
| Area (total) |
1400 sq ft |
1400 sq ft |
| Width of center section |
42’ 0" |
|
| Width of outer wing (start of
dihedral) |
31’ 0" |
|
| Distance from tip of bow to
leading edge of wing |
16’ 11" |
|
| Ailerons |
------------------------- |
-------------------- |
| Length |
20’ 0" |
|
| Width at wing tip |
25.98" |
|
| Width toward wing root |
34.08" |
|
| Wing Struts |
------------------------- |
-------------------- |
| Location |
231" from tip of bow and 305" from
tip of bow |
|
| Stabilizer |
------------------------- |
-------------------- |
| Span |
30’ 06" |
30’ 06" |
| Maximum chord |
8’ 0" |
|
| Incidence |
4 deg positive |
|
| Area (including hull-fin area and 18.4 sqft of
contained elevator balance) |
138.2 sq ft |
|
| Sweepback |
10deg 50’ |
|
| Elevator |
------------------------- |
-------------------- |
| Elevators area (2, including tabs) |
66.6 sq ft |
|
| Elevator trim tabs area (total) |
3.9 sq ft |
|
| Elevator position (from rudder center) |
2’ 4" |
|
| Width |
9’ 5 15/16" |
|
| Depth to hinge |
3’ 6 3/8" |
|
| Total Depth |
4’ 6 ½" |
|
| Rudder |
------------------------- |
-------------------- |
| Fin |
3.5 sq ft |
|
| Rudder (including tabs) |
40.4 sq ft |
|
| Rudder trim tab |
2.6 sq ft |
|
| Hull |
------------------------- |
-------------------- |
| Width (Maximum) |
10’ 2 ½" |
|
| Height (Maximum) |
8’ 0" |
|
| Length |
63’ 10 7/16" |
|
| Wingtip Floats |
------------------------- |
-------------------- |
| Length |
10’ 3 7/8" |
|
| Tread (from keel to keel) |
89’ 04" |
89’ 04" |
| Landing Gear |
------------------------- |
-------------------- |
| Tread (from center of
tire to center of tire) |
16’ 09" |
16’ 09" |
| Center of nose gear to
center of main gear |
17’ ¾" |
17’ ¾" |
| Nose gear tire |
? |
30x8 |
| Main gear tire |
? |
47x10 |
| Gear strength |
? |
|
| Propeller |
------------------------- |
-------------------- |
| Type |
Hamilton Std |
Hamilton Std |
| Blade Des No |
6353A-12 |
6353A-12 |
| Aspect Ratio |
7.7 |
7.7 |
| Diameter (greatest
distance) |
12’ 01" |
12’ 01" |
| Min/Max
pitch |
? |
|
| Weights and Loading |
|
|
| Empty Weight |
20,910 lbs |
21,000 lbs |
| Maximum all-up weight |
35,420 lbs |
34,450 lbs |
| Wing loading |
24.3 lbs per sq ft |
|
| Power loading |
14.7 lbs per hp |
|
| Fuel |
712/513 (US) galls per lb |
|
| Engine weight |
? |
|
| Wing Outer |
? |
|
| Wing Center |
? |
|
| Vertical Stab. |
? |
|
| Horiz. Stab. |
? |
|
| Landing Gear |
? |
|
| Float |
? |
|
| C of G Limits |
27,880 lbs AUW |
|
| Forward CG limit |
22.9% MAC (242.2 ins) |
|
| Aft CG limit |
28.5% MAC (251.5 ins) |
|
| Datum |
3 inches aft of bow nose |
|
| Engine |
------------------------- |
-------------------- |
| Type |
2 P&W R-1830-92 Radials twin row 14 cylinder |
2 P&W R-1830-92 Radials twin row 14 cylinder |
| Horsepower (each engine) |
1,200 hp @ 2,700 rpm |
1,200 hp @ 2,700 rpm |
| Location |
6’ 11" from fuselage center to
engine center |
|
| Depth from center of propeller to leading edge
of wing |
5’ 2" |
|
| Performance |
------------------------- |
-------------------- |
| Max Speed |
179 mph |
178 mph @ 7,000 ft |
| Cruising speed |
125 mph |
113 mph |
| Rate of climb |
620 ft per min |
|
| Range (cruising) |
(cruising) 17 hrs |
|
| Range (miles) |
2,350 miles |
2,535 miles |
| Service Ceiling |
13,000 ft |
16,200 ft |
| Fuel |
------------------------- |
-------------------- |
| Capacity |
825 gal/wing |
|
| Tank location(s) |
2 mid wing over fuselage
(both unsealed and self sealing)
65 gallon sump in engine nacelle |
|
| Weapons |
------------------------- |
-------------------- |
| |
1 - .50 Caliber in each bubble (2 total) 2 - .30 Caliber in bow
1 - .30 Caliber in ventral |
5 - .50 Caliber Machine Guns (There were also interesting field modifications like a quad 5 in the nose or
twin 20mm cannon in addition to existing guns) |
| |
4 – 325 lb Depth Charges>
or 2 – Mark
XIII Torpedoes or4 – 500 or 1000 lb Bombs
or
24 - Retro firing ASW rockets
(Basically up to 4000 lbs of ordinance) |
4 – 325 lb Depth Charges or 2 – Mark
XIII Torpedoes or 4 – 500 or 1000 lb Bombs
(Basically up to 4000 lbs of bombs) |
| Speed Limits |
------------------------- |
-------------------- |
| Never exceed speed (Vne) |
199 mph |
|
| Structural cruising speed (Vc) |
158 mph |
|
| Maximum Float Operating Speed |
150 mph |
|
| Maximum gear lowering speed |
140 mph |
|
| Maximum with gear extended |
160 mph |
|
| Maneuvering speed (Vp) |
122 mph |
|
| Minimum speed at which airplane is
controllable in flight with one engine inoperative, its propeller windmilling, floats and
gear up, other engine at T/O power |
96 mph |
|
| Stalling speeds |
27,880 lbs AUW |
|
| Aircraft clean, throttles closed |
73 mph |
|
| Gear down, 2300 RPM 12 in boost |
63 mph |
|
| Floats down, 2300 RPM 12 in boost |
66 mph |
|
| General Operation Speeds |
------------------------- |
-------------------- |
| V1 – Decision speed |
75 mph |
|
| Vmca – Minimum control speed in flight |
98 mph |
|
| Vs – Stall speed clean |
73 mph |
|
| Vmu – Minimum unstick speed |
81 mph |
|
| V2min – Minimum take-off safety speed |
75 mph |
|
| V2 – Initial climb out speed |
104 mph |
|
| Best water takeoff speed |
75-81 mph |
|
| Best land takeoff speed |
86 mph |
|
| Best turbulence speed |
122 mph |
|
| Diving |
------------------------- |
-------------------- |
| G- limit |
3 g at 27,000 lbs |
|
| I would like to thank Michael "Mad"
Moe for the amazing amount of data he has collected. I know of no other place on the
web where so much detailed information on the PBY has been pulled together. |
|
|
=V67=