Blue Scout Junior

American suborbital launch vehicle. Smaller Air Force version of Scout used for suborbital military tests.

The Blue Scout Junior was a four-stage rocket based on the NASA/LTV Scout family. Blue Scout Junior and its derivatives were used throughout the 1960s and 1970s by the USAF under the designation of SLV-1.

Payload: 10 kg (22 lb) to a 26.775 km altitude, 11,290 km range.

Stage Data - Blue Scout Junior

• Stage 1. 1 x Castor 2. Gross Mass: 4,424 kg (9,753 lb). Empty Mass: 695 kg (1,532 lb). Thrust (vac): 258.915 kN (58,206 lbf). Isp: 262 sec. Burn time: 37 sec. Isp(sl): 232 sec. Diameter: 0.79 m (2.59 ft). Span: 0.79 m (2.59 ft). Length: 6.04 m (19.81 ft). Propellants: Solid. No Engines: 1. Engine: TX-354-3. Status: In Production.

• Stage 2. 1 x Antares 1A. Gross Mass: 1,225 kg (2,700 lb). Empty Mass: 294 kg (648 lb). Thrust (vac): 60.497 kN (13,600 lbf). Isp: 256 sec. Burn time: 39 sec. Isp(sl): 233 sec. Diameter: 0.78 m (2.55 ft). Span: 0.78 m (2.55 ft). Length: 3.38 m (11.08 ft). Propellants: Solid. No Engines: 1. Engine: X-254. Status: Out of Production.

• Stage 3. 1 x Alcor. Gross Mass: 520 kg (1,140 lb). Empty Mass: 50 kg (110 lb). Thrust (vac): 35.588 kN (8,001 lbf). Isp: 230 sec. Burn time: 30 sec. Diameter: 0.46 m (1.50 ft). Span: 0.46 m (1.50 ft). Length: 1.37 m (4.49 ft). Propellants: Solid. No Engines: 1. Engine: Alcor. Status: Out of Production. Comments: Masses, specific impulse estimated.

• Stage 4. 1 x Cetus. Gross Mass: 50 kg (110 lb). Empty Mass: 10 kg (22 lb). Thrust (vac): 4.001 kN (899 lbf). Isp: 230 sec. Burn time: 20 sec. Diameter: 0.43 m (1.41 ft). Span: 0.43 m (1.41 ft). Length: 0.51 m (1.67 ft). Propellants: Solid. No Engines: 1. Engine: NOTS 100A. Status: Out of Production. Comments: Masses, specific impulse estimated.