The US Navy's satellite launcher project competed with the Army's Jupiter-C, the Air Force Atlas, and the civilian Vanguard. Air-launched satellite launch vehicle, and anti-satellite versions, tested by the US Navy shortly after Sputnik. One may have achieved orbit.
Model: Project Pilot 1. Family: Air-Launched.
Ground-launched, 5 stage vehicle for Project Pilot.
Apogee: 10 km (6 mi). Liftoff Thrust: 125.000 kN (28,101 lbf). Total Mass: 900 kg (1,980 lb). Core Diameter: 0.76 m (2.49 ft). Total Length: 4.40 m (14.40 ft).
- Stage1: 2 x Project Pilot-1. Gross Mass: 100 kg (220 lb). Empty Mass: 27 kg (59 lb). Motor: 1 x HOTROC. Thrust (vac): 63.200 kN (14,208 lbf). Burn time: 4.90 sec. Length: 1.80 m (5.90 ft). Diameter: 0.30 m (0.98 ft). Propellants: Solid.
- Stage2: 2 x Project Pilot-1. Gross Mass: 100 kg (220 lb). Empty Mass: 27 kg (59 lb). Motor: 1 x HOTROC. Thrust (vac): 63.200 kN (14,208 lbf). Burn time: 4.90 sec. Length: 1.80 m (5.90 ft). Diameter: 0.30 m (0.98 ft). Propellants: Solid.
- Stage3: 1 x Project Pilot 1-3. Gross Mass: 200 kg (440 lb). Empty Mass: 25 kg (55 lb). Motor: 1 x X-241. Thrust (vac): 12.100 kN (2,720 lbf). Burn time: 36 sec. Length: 1.50 m (4.90 ft). Diameter: 0.46 m (1.50 ft). Propellants: Solid.
- Stage4: 1 x Project Pilot 1-4. Gross Mass: 10 kg (22 lb). Empty Mass: 3.00 kg (6.60 lb). Motor: 1 x NOTS 8. Thrust (vac): 5.100 kN (1,147 lbf). Burn time: 5.70 sec. Length: 0.50 m (1.64 ft). Diameter: 0.20 m (0.65 ft). Propellants: Solid.
- Stage5: 1 x Project Pilot 1-5. Empty Mass: 1.00 kg (2.20 lb). Motor: 1 x NOTS 3SM. Thrust (vac): 700 N (150 lbf). Burn time: 1.00 sec. Length: 0.10 m (0.32 ft). Diameter: 0.0800 m (0.2620 ft). Propellants: Solid.
Model: Project Pilot 2. Family: Air-Launched.
Six stage vehicle consisting of 1 x F4D-1 Skyray + 2 x HOTROC + 2 x HOTROC + 1 x X-241 + 1 x NOTS 8in + 1 x NOTS 3in Sph.
LEO Payload: 1.00 kg (2.20 lb). Liftoff Thrust: 125.000 kN (28,101 lbf). Total Mass: 900 kg (1,980 lb). Core Diameter: 0.76 m (2.49 ft). Total Length: 4.40 m (14.40 ft).
Project Pilot Chronology
1958 July 4 - China Lake G-2. Project Pilot-1 FAILURE: Failure. Test mission Agency: USN. Apogee: 0 km ( mi).
1958 July 18 - China Lake G-2. Project Pilot-1 FAILURE: Failure. Test mission Agency: USN. Apogee: 0 km ( mi).
1958 July 25 - Santa Barbara Channel DZ -. Project Pilot 1 FAILURE: Radio contact lost; possibly reached orbit. Pilot 1 Spacecraft: Pilot. Agency: USN. Apogee: 12 km (7 mi).
1958 August 12 - Santa Barbara Channel DZ -. Project Pilot 2 FAILURE: Vehicle exploded at ignition. Pilot 2 Spacecraft: Pilot. Agency: USN. Apogee: 12 km (7 mi).
1958 August 16 - China Lake G-2. Project Pilot-1 FAILURE: Failure. Test mission Agency: USN. Apogee: 0 km ( mi).
1958 August 17 - China Lake G-2. Project Pilot-1 FAILURE: Failure. Test mission Agency: USN. Apogee: 0 km ( mi).
1958 August 22 - Santa Barbara Channel DZ -. Project Pilot 3 FAILURE: Radio contact lost; possibly reached orbit. Pilot 3 Spacecraft: Pilot. Agency: USN. Apogee: 0 km ( mi).
1958 August 25 - Santa Barbara Channel DZ -. Project Pilot 4 FAILURE: Vehicle exploded after 0.75sec. Pilot 4 Spacecraft: Pilot. Agency: USN. Apogee: 12 km (7 mi).
1958 August 26 - Santa Barbara Channel DZ -. Project Pilot 5 FAILURE: Stage failed to ignite, vehicle fell into Pacific. Pilot 5 Spacecraft: Pilot. Agency: USN. Apogee: 12 km (7 mi).
1958 August 28 - Santa Barbara Channel DZ -. Project Pilot 6 FAILURE: One first stage motor failed to ignite, causing structural failure. Pilot 6 Spacecraft: Pilot. Agency: USN. Apogee: 12 km (7 mi).
Bibliography:- McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: http://www.planet4589.org/jsr.html.
- Krebs, Gunter, Gunter's Space Page, University of Frankfurt, 1996. Web Address when accessed: http://www.skyrocket.de/space.
- Koelle, Heinz Hermann,, Handbook of Astronautical Engineering, McGraw-Hill,New York, 1961.