Scout Credit - © Mark Wade

4 stage vehicle consisting of 1 x Algol 1D + 1 x Castor + 1 x Antares 2 + 1 x Altair

Manufacturer: Vought. Launches: 6. Failures: 4. Success Rate: 33.33%. First Launch Date: 1962-03-29. Last Launch Date: 1963-09-27. Launch data is: complete. LEO Payload: 76 kg (167 lb). to: 185 km Orbit. Associated Spacecraft: GRAB, Program 35. Liftoff Thrust: 427.100 kN (96,016 lbf). Total Mass: 16,440 kg (36,240 lb). Core Diameter: 1.01 m (3.31 ft). Total Length: 25.00 m (82.00 ft). Flyaway Unit Cost $: 8.910 million. in: 1985 unit dollars.

4 stage vehicle consisting of 1 x Algol 1D + 1 x Castor + 1 x Antares 2 + 1 x Altair

LEO Payload: 76 kg (167 lb). to: 185 km Orbit. Liftoff Thrust: 427.100 kN (96,016 lbf). Total Mass: 16,440 kg (36,240 lb). Core Diameter: 1.01 m (3.31 ft). Total Length: 25.00 m (82.00 ft).

4 stage vehicle consisting of 1 x Algol 1C + 1 x Castor + 1 x Antares 2 + 1 x Altair

Apogee: 7,000 km (4,300 mi). Liftoff Thrust: 440.000 kN (98,910 lbf). Total Mass: 17,000 kg (37,000 lb). Total Length: 22.00 m (72.00 ft).

4 stage vehicle consisting of 1 x Algol 1D + 1 x Castor + 1 x Antares 2 + 1 x Altair 2

Apogee: 900 km (550 mi). Liftoff Thrust: 440.000 kN (98,910 lbf). Total Mass: 17,000 kg (37,000 lb). Total Length: 22.00 m (72.00 ft).

4 stage vehicle consisting of 1 x Algol 1D + 1 x Castor + 1 x Antares 2 + 1 x MG-18

Apogee: 900 km (550 mi). Liftoff Thrust: 440.000 kN (98,910 lbf). Total Mass: 17,000 kg (37,000 lb). Total Length: 22.00 m (72.00 ft).

• Stage Number: 1. 1 x Stage: Algol 1. Gross Mass: 10,705 kg (23,600 lb). Empty Mass: 1,900 kg (4,100 lb). Thrust (vac): 470.934 kN (105,870 lbf). Isp: 236 sec. Burn time: 40 sec. Isp(sl): 214 sec. Diameter: 1.01 m (3.31 ft). Span: 1.01 m (3.31 ft). Length: 9.12 m (29.92 ft). Propellants: Solid. No Engines: 1. Engine: Algol 1. Other designations: Senior. This rocket started as a Polaris test motor with a 40 inch diameter, which at the time was the largest solid motor ever tested. It had a nominal performance rating of 45 seconds duration and 45,000 kgf thrust. Variations included Algol I, I-D, II, II-A, II-B and possibly others. Another popular rating was 40KS-115,000 (52,000 kgf for 40 seconds), also known as Senior.

• Stage Number: 2. 1 x Stage: Castor 1. Gross Mass: 3,852 kg (8,492 lb). Empty Mass: 535 kg (1,179 lb). Thrust (vac): 286.001 kN (64,296 lbf). Isp: 247 sec. Burn time: 27 sec. Isp(sl): 232 sec. Diameter: 0.79 m (2.59 ft). Span: 0.79 m (2.59 ft). Length: 5.92 m (19.42 ft). Propellants: Solid. No Engines: 1. Engine: M33-20-4.

• Stage Number: 3. 1 x Stage: Antares 2. Gross Mass: 1,400 kg (3,000 lb). Empty Mass: 300 kg (660 lb). Thrust (vac): 93.094 kN (20,928 lbf). Isp: 293 sec. Burn time: 36 sec. Isp(sl): 233 sec. Diameter: 0.78 m (2.55 ft). Span: 0.78 m (2.55 ft). Length: 2.90 m (9.50 ft). Propellants: Solid. No Engines: 1. Engine: X-259.

• Stage Number: 4. 1 x Stage: Altair 1A. Gross Mass: 390 kg (850 lb). Empty Mass: 181 kg (399 lb). Thrust (vac): 13.788 kN (3,100 lbf). Isp: 255 sec. Burn time: 40 sec. Isp(sl): 232 sec. Diameter: 0.46 m (1.50 ft). Span: 0.46 m (1.50 ft). Length: 2.50 m (8.20 ft). Propellants: Solid. No Engines: 1. Engine: X-248A.

1962 March 29 - 07:27 GMT - Launch Site: Wallops Island. Launch Complex: LA3. Launch Pad: LA3. Launch Vehicle: Scout X-2. LV Configuration: Scout X-2 ST-9.

• P-21A Nation: USA. Class: Technology. Type: Military. Agency: NASA. Apogee: 6,291 km (3,909 mi). COSPAR: 19620329S. Decay Date: 1962-03-29. References: 0.

• Solrad 4B Nation: USA. Payload: GRAB 4B. Mass: 91 kg (200 lb). Class: Sigint. Spacecraft: GRAB. Agency: U.S. Navy. COSPAR: F620426A. Decay Date: 1962-04-26. Solar radiation monitor. References: 5, 126.

• P 35-1 Nation: USA. Program: DMSP. Payload: FTV 3501. Class: Earth. Type: Weather. Spacecraft: Program 35. Agency: AFSC. COSPAR: F620524A. Decay Date: 1962-05-24. Military weather satellite to provide targetting information for reconnaisance satellites. References: 5, 126.

• P 35-2 Nation: USA. Program: DMSP. Mass: 91 kg (200 lb). Class: Earth. Type: Weather. Spacecraft: Program 35. Agency: U.S. Air Force. Perigee: 578 km (359 mi). Apogee: 752 km (467 mi). Inclination: 98.50 deg. Period: 98.10 min. COSPAR: 1962-A-Omicron-1. USAF Sat Cat: 369. Military weather satellite to provide targetting information for reconnaisance satellites. References: 1, 2, 5, 6.

• P 35-4 Nation: USA. Program: DMSP. Payload: OPS 1298. Class: Earth. Type: Weather. Spacecraft: Program 35. Agency: U.S. Air Force. COSPAR: F630426B. Decay Date: 1963-04-26. Military weather satellite to provide targetting information for reconnaisance satellites. References: 5, 126.

• P 35-5 Nation: USA. Program: DMSP. Payload: OPS 1610. Mass: 40 kg (88 lb). Class: Earth. Type: Weather. Spacecraft: Program 35. Agency: U.S. Air Force. COSPAR: F630927A. Decay Date: 1963-09-27. Military weather satellite to provide targetting information for reconnaisance satellites. References: 5, 126.

• McDowell, Jonathan, Jonathan's Space Home Page, Harvard University, 1997-present. Jonathan McDowell's complete on-line listing of all objects orbited and over 20,000 rocket launches Accessed at: http://www.planet4589.org/jsr.html.

• Wilson, Andrew, Spaceflight, "Scout - NASA's Small Satellite Launcher", 1979, Volume 21, page 446.