Thor Delta L

American orbital launch vehicle. Four stage vehicle consisting of 3 x Castor 2 + 1 x LT Thor DSV-2L-1B + 1 x Delta E + 1 x FW4D

LEO Payload: 300 kg (660 lb). Payload: 300 kg (660 lb) to a GTO. Flyaway Unit Cost 1985$: 16.540 million.

Stage Data - Delta L

• Stage 0. 3 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 1. 1 x Delta Thor LT. Gross Mass: 70,354 kg (155,104 lb). Empty Mass: 3,715 kg (8,190 lb). Thrust (vac): 866.710 kN (194,844 lbf). Isp: 290 sec. Burn time: 215 sec. Isp(sl): 256 sec. Diameter: 2.44 m (8.00 ft). Span: 2.44 m (8.00 ft). Length: 21.43 m (70.30 ft). Propellants: Lox/Kerosene. No Engines: 1. Engine: MB-3-3. Other designations: Long Tank Thor. Status: Out of Production.

• Stage 2. 1 x Delta E. Gross Mass: 6,009 kg (13,247 lb). Empty Mass: 785 kg (1,730 lb). Thrust (vac): 35.098 kN (7,890 lbf). Isp: 278 sec. Burn time: 400 sec. Diameter: 1.40 m (4.50 ft). Span: 1.40 m (4.50 ft). Length: 6.28 m (20.60 ft). Propellants: Nitric acid/UDMH. No Engines: 1. Engine: AJ10-118E. Status: Out of Production.

• Stage 3. 1 x FW-4D. Gross Mass: 300 kg (660 lb). Empty Mass: 25 kg (55 lb). Thrust (vac): 24.997 kN (5,620 lbf). Isp: 287 sec. Burn time: 31 sec. Isp(sl): 250 sec. Diameter: 0.50 m (1.64 ft). Span: 0.50 m (1.64 ft). Length: 1.48 m (4.85 ft). Propellants: Solid. No Engines: 1. Engine: FW4-D. Status: Out of Production.