STEWARD-DAVIS JET-PACKET
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| JET-PACKET SPECIFICATIONS | ||||||
| Performance figures are as usual based
on various conditions, those of which weren't available when this was written. Figures for early Jet-Packet 1600 variants were also not available, but won't be far off those for the 1600B. Take-off distances vary depending on use of the jet-pak on take-off. 1600A / 3400A variants may also be fitted with P&W R-2800-83AM12 or any other similar model of the R-2800 radial engine. |
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| Jet-Packet 1600 | Jet-Packet 1600A | Jet-Packet 1600B | Jet-Packet 3400 | Jet-Packet 3400A | Jet-Packet 3400B | |
| Engines | R-2800-85 | R-2800-85AM2H | R-2800-CB16 | R-2800-85 | R-2800-85AM2H | R-2800-CB16 |
| Power Output | 2,100 hp each | 2,100 hp each | 2,400 hp each | 2,100 hp each | 2,100 hp each | 2,400 hp each |
| Jet-Pak Option | J30-W | J30-W | J30-W | J34-WE-34 / -36 | J34-WE-34 / -36 | J34-WE-34 / -36 |
| Power Output | 1,600 lbst. | 1,600 lbst. | 1,600 lbst. | 3,250 - 3,400 lbst. | 3,250 - 3,400 lbst. | 3,250 - 3,400 lbst. |
| Empty Weight | - | - | 30,310 lbs. | 32,000 lbs. | 32,000 lbs. | 31,010 lbs. |
| Payload Weight | - | - | 19,690 lbs. | 22,000 lbs. | 22,000 lbs. | 18,990 lbs. |
| Max T/O Weight | - | - | 54,000 lbs. | 54,000 lbs. | 54,000 lbs. | 54,000 lbs. |
| Max Landing Weight | - | - | 50,000 lbs. | 50,000 lbs. | 50,000 lbs. | 50,000 lbs. |
| Take-Off Distance | - | - | 3,990 ft. | - | - | 3,420 ft. |
| Climb Rate | - | - | 1,220 ft. / min. | 1,500 ft. / min. | 1,500 ft. / min. | 1,710 ft. / min. |
| Range (max fuel) |
- | - | 3,100 miles | 3,250 miles | 3,250 miles | 3,100 miles |
| Range (max payload) |
- | - | 640 miles | 277 miles | 277 miles | 630 miles |
| Cruise Speed | - | - | 216 mph | 210 mph | 210 mph | 216 mph |
| Max Speed | - | - | 230 mph | 217 mph | 217 mph | 230 mph |
| Approach Speed | - | - | 101 mph | - | - | 101 mph |
| Service Ceiling | - | - | 27,400 ft. | 26,200 ft. | 26,200 ft. | 32,300 ft. |
| PROTOTYPE SPECIFICATIONS | |||
| Performance figures are as usual based on various conditions, those of
which weren't available when this was written. Figures for the Jet-Packet 3200 were also not available, but won't be far off those for the 1600. Skypallet figures were never gauged as it never flew but will be close to those of the Skytruck Mk. I. Take-off distances vary depending on use of the jet-pak on take-off. |
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| Jet-Packet 3200 | Skytruck Mk. I | Skypallet | |
| Engines | R-2800-85 | R-2800-85 | R-2800-85 |
| Power Output | 2,100 hp each | 2,100 hp each | 2,100 hp each |
| Jet-Pak Option | twin J30-W | J34-WE-34 / -36 | J34-WE-34 / -36 |
| Power Output | 3,200 lbst. | 3,250 - 3,400 lbst. | 3,250 - 3,400 lbst. |
| Empty Weight | - | 30,335 lbs. | - |
| Payload Weight | - | 23,665 lbs. | 30,000 lbs. |
| Max T/O Weight | 54,000 lbs. | 60,000 lbs. | - |
| Max Zero Fuel Weight | - | 54,000 lbs. | |
| Max Landing Weight | 50,000 lbs. | 57,000 lbs. | - |
| Take-Off Distance | - | - | - |
| Climb Rate | - | 1,200 ft. / min. | - |
| Range (max fuel) |
- | 3,230 miles | - |
| Range (max payload) |
- | 850 miles | - |
| Cruise Speed | - | 200 mph | - |
| Max Speed | - | 217 mph | - |
| Approach Speed | - | - | - |
| Service Ceiling | - | 21,900 ft. | - |
Jet-Packet 3200 N5095V, demonstrates flying on
it's twin J30 installation alone
and holding level flight! All jet-paks had two modes - off or full throttle,
there
was no selectable power setting for the pilot.
Photo: Steward-Davis.
J30-W
| JET-PAK SPECIFICATIONS | |||
| The J-30-W is a turbojet with a
single-stage turbine and ten-stage axial-flow compressor with an electric starter motor. The J34-WE is a turbojet with a two-stage turbine and eleven-stage axial-flow compressor with a 24-volt electric starter motor. |
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| J30-W | J34-WE-34 | J34-WE-36 | |
| Civil Designation | 19XB-2B | 24C | 24C |
| Overall Length | 7.84 feet (2.39 meters) |
10.16 feet (3.098 meters) |
9.29 feet (2.83 meters) |
| Overall With | 1.59 feet (0.48 meters) |
2.33 feet (0.71 meters) |
2.25 feet (0.69 meters) |
| Overall Height | as above. | 3.24 feet (0.99 meters) |
2.89 feet (0.88 meters) |
| Weight | 692 lbs. (313.89 kgs) |
1,233 lbs. (559.28 kgs) |
? |
| Compression Ratio | 3.80 : 1 | 3.85 : 1 | 4.35 : 1 |
| Power Rating (military static) |
1,560 lbst. | 3,250 lbst. | 3,400 lbst. |
| Power Rating (normal static) |
1,285 lbst. | 2,650 lbst. | ? |
| Fuel Grade | 100 / 130 Octane | 100 / 130 Octane | 100 / 130 Octane |
| Fuel Consumption (military) |
? | 1.06 lb./lb. thrust/hr. | 1.04 lb./lb. thrust/hr. |
| Fuel Consumption (normal) |
1.17 lb./lb. thrust/hr. | 1.05 lb./lb. thrust/hr. | 1.025 lb./lb. thrust/hr. |
| Oil Pressure | 80 lbs. / sq. inch | 80 lbs. / sq. inch | 80 lbs. / sq. inch |
| Max Inlet Temp. | 1,500 deg. F. (816 deg. C.) |
1,425 deg. F. (774 deg. C.) |
1,425 deg. F. (774 deg. C.) |
| Exhaust Gas Temp. (military) |
? | 1,115 deg. F. (602 deg. C.) |
1,115 deg. F. (602 deg. C.) |
| Exhaust Gas Temp. (normal) |
1,220 deg. F. (660 deg. C.) |
1,025 deg. F. (552 deg. C.) |
1,025 deg. F. (552 deg. C.) |
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J34-WE-34