Function | Expendable launch system Sounding rocket |
---|---|
Manufacturer | Vought |
Country of origin | United States |
Size | |
Height | 24 metres (79 ft) |
Diameter | 1.02 metres (3 ft 4 in) |
Mass | 16,874 kilograms (37,201 lb) |
Stages | Four |
Capacity | |
Payload to LEO | |
Mass | 30 kilograms (66 lb) |
Associated rockets | |
Family | Scout |
Launch history | |
Status | Retired |
Launch sites | Canaveral LC-18B |
Total launches | 3 |
Success(es) | 2 |
Failure(s) | 1 |
First flight | 1961-03-03 |
Last flight | 1961-11-01 |
First stage – Algol 1B | |
Powered by | 1 solid |
Maximum thrust | 471 kilonewtons (106,000 lbf) |
Specific impulse | 236 sec |
Burn time | 40 seconds |
Propellant | Solid |
Second stage –Castor 2 | |
Powered by | 1 TX-354-3 |
Maximum thrust | 286 kilonewtons (64,000 lbf) |
Specific impulse | 247 sec |
Burn time | 27 seconds |
Propellant | Solid |
Third stage –Antares 1A | |
Powered by | 1 X-254 |
Maximum thrust | 60 kilonewtons (13,000 lbf) |
Specific impulse | 256 sec |
Burn time | 39 seconds |
Propellant | Solid |
Fourth stage –Altair 1A | |
Powered by | 1 X-248A |
Maximum thrust | 14 kilonewtons (3,100 lbf) |
Specific impulse | 255 sec |
Burn time | 40 seconds |
Propellant | Solid |
The RM-90 Blue Scout II was an American sounding rocket and expendable launch system which was flown three times during 1961. [1] [2] [3] It was a member of the Scout family of rockets. [4] Blue Scout II was a military version of the NASA-operated Scout X-1,with adjustments to the payload fairings,engine nozzles and fins. [1] [3]
Blue Scout II had a total length of 21.65 m and a finspan of 2.84 m.
It was capable of sending a 30 kg payload to a 300 km orbit at 28.00 degrees. [1] It was a four stage vehicle,with the following engines: [1] [2] [3] [5]
Blue Scout II was used for two HETS test flights,and the launch of the Mercury-Scout 1 satellite for NASA. [1] [2] [6] This rocket and RM-89 Blue Scout I were replaced by Blue Scout Junior. [3]
Parameter | 1st Stage | 2nd Stage | 3rd Stage | 4th Stage |
---|---|---|---|---|
Gross Mass | 10,705 kg | 4,424 kg | 1,225 kg | 238 kg |
Empty Mass | 1,900 kg | 695 kg | 294 kg | 30 kg |
Thrust | 470 kN | 259 kN | 60.5 kN | 12.4 kN |
Isp | 214 s (2.10 kNs/kg) | 262 s (2.57 kNs/kg) | 256 s (2.51 kNs/kg) | 256 s (2.51 kNs/kg) |
Burn time | 40 s | 37 s | 39 s | 38 s |
Length | 9.12 m | 6.04 m | 3.38 m | 1.83 m |
Diameter | 1.01 m | 0.79 m | 0.78 m | 0.46 m |
Engine: | Aerojet General Algol 1 | Thiokol XM33 (TX-354-3) Castor 2 | Allegany Ballistics Lab X-254 Antares 1A | Allegany Ballistics Lab X-248 Altair 1 |
Propellant | Solid | Solid | Solid | Solid |
All three Blue Scout II launches occurred from Launch Complex 18B at the Cape Canaveral Air Force Station,the same launch pad used for the Blue Scout I. [1] [2]
The first two launches were successfully conducted on 3 March and 12 April 1961 respectively,using vehicles D-4 and D-5. [1] [2] [7] They both carried HETS A2 plasma research experiments on suborbital trajectories.
The third launch was conducted on 1 November,using vehicle D-8,with the Mercury-Scout 1 satellite for NASA,which was intended to reach low Earth orbit. [6] The launch failed after the rocket went out of control,and was destroyed by the range safety officer 43 seconds after liftoff. [1] [2]
Date | Serial | Agency | Orbit | Mission Description |
---|---|---|---|---|
1961 March 3 | D-4 | USAF | Suborbital,2540 km apogee [7] | HETS A2-1 plasma mission |
1961 April 12 | D-5 | USAF | Suborbital,1931 km apogee [7] | HETS A2-2 plasma mission |
1961 November 1 | D-8 | USAF | 373 km ×643 km,32.5°(planned) [6] | Mercury-Scout 1 (failure) |
The Scout family of rockets were American launch vehicles designed to place small satellites into orbit around the Earth. The Scout multistage rocket was the first orbital launch vehicle to be entirely composed of solid fuel stages. It was also the only vehicle of that type until the successful launch of the Japanese Lambda 4S in 1970.
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Scout X-2 was an American expendable launch system and sounding rocket which was flown twice in 1962. It was a four-stage rocket,based on the earlier Scout X-1,uprated first and third stages. It was a member of the Scout family of rockets.
The Altair was a solid-fuel rocket with a fiberglass casing,initially developed for use as the third stage of Vanguard rockets in 1959. It was manufactured by Allegany Ballistics Laboratory (ABL) as the X-248. It was also sometimes called the Burner 1.
The Atlas E/F was an American expendable launch system and sounding rocket built using parts of decommissioned SM-65 Atlas missiles. It was a member of the Atlas family of rockets.
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Scout X-1 was an American expendable launch system and sounding rocket which was flown seven times between August 1960 and October 1961. Four orbital and three suborbital launches were made,with four of the launches resulting in failures.
The RM-89 Blue Scout I was an American sounding rocket which was flown four times between January 1961 and April 1962. It was used for two HETS test flights,and a flight to investigate atmospheric re-entry. It was a member of the Scout family of rockets.
Scout X-1A was an American sounding rocket which was flown in 1962. It was a five-stage derivative of the earlier Scout X-1,with an uprated first stage,and a NOTS-17 upper stage.
Scout X-2M was an American expendable launch system which was flown three times between May 1962 and April 1963. It was a four-stage rocket,based on the earlier Scout X-2,but with an MG-18 upper stage instead of the Altair used on the X-2. It was a member of the Scout family of rockets.
The Scout X-2B was an American expendable launch system which was flown during 1963. It was a four-stage rocket,based on the earlier Scout X-2,but with an Altair 2A fourth stage in place of the Altair 1A used on the X-2. It was a member of the Scout family of rockets.
This article compares different orbital launcher families. The article is organized into two tables:the first contains a list of currently active and under-development launcher families,while the second contains a list of retired launcher families.
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A small-lift launch vehicle is a rocket orbital launch vehicle that is capable of lifting 2,000 kilograms (4,400 lb) or less or under 5,000 kilograms (11,000 lb) of payload into low Earth orbit (LEO). The next larger category consists of medium-lift launch vehicles.