Delta L

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Delta L

Family: Delta. Country: USA. Status: Hardware. Other Designations: Long Tank Thor.

Specifications

Launches: 2. Failures: 1. Success Rate: 50.00% pct. First Launch Date: 27 August 1969. Last Launch Date: 31 January 1972. Liftoff Thrust: 148,150 kgf. Total Mass: 89,935 kg. Core Diameter: 2.4 m. Total Length: 35.0 m. Flyaway Unit Cost $: 16.54 million. in 1985 unit dollars.

Stage Number: 0. 3 x Castor 2 Gross Mass: 4,424 kg. Empty Mass: 695 kg. Thrust (vac): 26,402 kgf. Isp: 262 sec. Burn time: 37 sec. Isp(sl): 232 sec. Diameter: 0.8 m. Span: 0.8 m. Length: 6.0 m. Propellants: Solid No Engines: 1. TX-354-3
Stage Number: 1. 1 x Delta Thor LT Gross Mass: 70,354 kg. Empty Mass: 3,715 kg. Thrust (vac): 88,380 kgf. Isp: 290 sec. Burn time: 215 sec. Isp(sl): 256 sec. Diameter: 2.4 m. Span: 2.4 m. Length: 21.4 m. Propellants: Lox/Kerosene No Engines: 1. MB-3-3
Stage Number: 2. 1 x Delta E Gross Mass: 6,009 kg. Empty Mass: 785 kg. Thrust (vac): 3,579 kgf. Isp: 278 sec. Burn time: 400 sec. Isp(sl): 0 sec. Diameter: 1.4 m. Span: 1.4 m. Length: 6.3 m. Propellants: Nitric acid/UDMH No Engines: 1. AJ10-118E
Stage Number: 3. 1 x FW-4D Gross Mass: 300 kg. Empty Mass: 25 kg. Thrust (vac): 2,549 kgf. Isp: 287 sec. Burn time: 31 sec. Isp(sl): 250 sec. Diameter: 0.5 m. Span: 0.5 m. Length: 1.5 m. Propellants: Solid No Engines: 1. FW4-D

Delta L Chronology

1969 Aug 27 - - 21:59 GMT. LV Configuration: Thor Delta L s/n 540 / Delta s/n 73. Launch Site: Cape Canaveral . Launch Complex: LC17A. FAILURE: Failure.

TETR C Spacecraft: TETR. Payload: TETR C.
Pioneer E Spacecraft: Pioneer 6-7-8-9-E. Payload: Pioneer E. Mass: 67 kg.

1972 Jan 31 - - 17:20 GMT. LV Configuration: Thor Delta L s/n 564 / Delta s/n 87. Launch Site: Vandenberg . Launch Complex: SLC2E.

HEOS 2 Spacecraft: HEOS. Payload: HEOS A2. Mass: 123 kg.
Highly Eccentric Orbiting Satellite; particles and fields data. Fifth satellite of ESRO. Also registered as US object 1972-05A in A/AC.105/INF.248 with orbit 7835.4 min, 439 x 248160 km x 90.2 deg, category B.

Bibliography:

34 - Gatland, Kenneth, Missiles and Rockets, Macmillan, New York, 1975.
140 - Wilson, Andrew, Spaceflight, "Delta Digest", 1979, Volume 10, page 413.

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Last update 12 March 2001.
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