Firefly Alpha: Difference between revisions
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| sites = [[Vandenberg Space Force Base|VSFB]] [[Vandenberg Space Launch Complex 2|SLC-2W]] (Active)<ref name="AirForce_Approval">{{cite news|last1=Clark|first1=Stephen|title=Firefly's commercial satellite launcher to use Delta 2 pad at Vandenberg|url=https://spaceflightnow.com/2018/05/02/fireflys-commercial-satellite-launcher-to-use-delta-2-pad-at-vandenberg/|access-date=3 May 2018|work=Spaceflight Now|date=2 May 2018|archive-date=26 November 2021|archive-url=https://web.archive.org/web/20211126120626/https://spaceflightnow.com/2018/05/02/fireflys-commercial-satellite-launcher-to-use-delta-2-pad-at-vandenberg/|url-status=live}}</ref><ref name=FireflyAlpha_guide>{{cite web|title=Firefly Alpha Payload User's Guide |url=https://firefly.com/wp-content/themes/firefly_aerospace/files/Alpha%20PUG_20190830_Final_3.pdf|access-date=18 November 2019|url-status=dead|archive-date=28 September 2019|archive-url=https://web.archive.org/web/20190928032526/https://firefly.com/wp-content/themes/firefly_aerospace/files/Alpha%20PUG_20190830_Final_3.pdf}}</ref><br />[[Wallops Flight Facility|Wallops]], [[Mid-Atlantic Regional Spaceport Launch Pad 0|LP-0A]] (Planned)<ref>{{Cite web |date=24 June 2024 |title=Firefly Aerospace Adds Alpha Launch Capability on Wallops Island, Virginia |url=https://fireflyspace.com/news/firefly-aerospace-adds-alpha-launch-capability-on-wallops-island-virginia/ |access-date=24 June 2024 |website=Firefly Aerospace |language=en}}</ref><br />[[Cape Canaveral Space Force Station|CCSFS]] [[SLC-20]] (Planned)<ref name=verge20190222>{{cite news |url=https://www.theverge.com/2019/2/22/18234604/firefly-aerospace-cape-canaveral-florida-launch-site-slc-20 |title=Resurrected Firefly Aerospace will take over a launch site at busy Florida spaceport |last=Grush |first=Loren |work=[[The Verge]] |date=22 February 2019 |access-date=1 October 2022 |archive-date=26 November 2021 |archive-url=https://web.archive.org/web/20211126120616/https://www.theverge.com/2019/2/22/18234604/firefly-aerospace-cape-canaveral-florida-launch-site-slc-20 |url-status=live }}</ref><br />[[Esrange|ESRANGE]] LC-3C (Planned)<ref>https://spacenews.com/firefly-to-launch-alpha-rockets-from-esrange-in-sweden/</ref> |
| sites = [[Vandenberg Space Force Base|VSFB]] [[Vandenberg Space Launch Complex 2|SLC-2W]] (Active)<ref name="AirForce_Approval">{{cite news|last1=Clark|first1=Stephen|title=Firefly's commercial satellite launcher to use Delta 2 pad at Vandenberg|url=https://spaceflightnow.com/2018/05/02/fireflys-commercial-satellite-launcher-to-use-delta-2-pad-at-vandenberg/|access-date=3 May 2018|work=Spaceflight Now|date=2 May 2018|archive-date=26 November 2021|archive-url=https://web.archive.org/web/20211126120626/https://spaceflightnow.com/2018/05/02/fireflys-commercial-satellite-launcher-to-use-delta-2-pad-at-vandenberg/|url-status=live}}</ref><ref name=FireflyAlpha_guide>{{cite web|title=Firefly Alpha Payload User's Guide |url=https://firefly.com/wp-content/themes/firefly_aerospace/files/Alpha%20PUG_20190830_Final_3.pdf|access-date=18 November 2019|url-status=dead|archive-date=28 September 2019|archive-url=https://web.archive.org/web/20190928032526/https://firefly.com/wp-content/themes/firefly_aerospace/files/Alpha%20PUG_20190830_Final_3.pdf}}</ref><br />[[Wallops Flight Facility|Wallops]], [[Mid-Atlantic Regional Spaceport Launch Pad 0|LP-0A]] (Planned)<ref>{{Cite web |date=24 June 2024 |title=Firefly Aerospace Adds Alpha Launch Capability on Wallops Island, Virginia |url=https://fireflyspace.com/news/firefly-aerospace-adds-alpha-launch-capability-on-wallops-island-virginia/ |access-date=24 June 2024 |website=Firefly Aerospace |language=en}}</ref><br />[[Cape Canaveral Space Force Station|CCSFS]] [[SLC-20]] (Planned)<ref name=verge20190222>{{cite news |url=https://www.theverge.com/2019/2/22/18234604/firefly-aerospace-cape-canaveral-florida-launch-site-slc-20 |title=Resurrected Firefly Aerospace will take over a launch site at busy Florida spaceport |last=Grush |first=Loren |work=[[The Verge]] |date=22 February 2019 |access-date=1 October 2022 |archive-date=26 November 2021 |archive-url=https://web.archive.org/web/20211126120616/https://www.theverge.com/2019/2/22/18234604/firefly-aerospace-cape-canaveral-florida-launch-site-slc-20 |url-status=live }}</ref><br />[[Esrange|ESRANGE]] LC-3C (Planned)<ref>https://spacenews.com/firefly-to-launch-alpha-rockets-from-esrange-in-sweden/</ref> |
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'''Firefly Alpha''' ('''Firefly α''') is a [[two-stage-to-orbit|two-stage]] orbital [[expendable launch system|expendable]] [[Small-lift launch vehicle|small lift launch vehicle]] developed by the American company [[Firefly Aerospace]] to [[Space launch market competition|compete]] in the commercial [[small satellite]] launch market. Alpha is intended to provide launch options for both full vehicle and [[Rideshare (aerospace)|rideshare]] customers.<ref name=FireflyAlpha_website>{{cite web|title=Firefly Alpha|url=https://firefly.com/alpha|access-date=1 October 2022|archive-date=22 September 2022|archive-url=https://web.archive.org/web/20220922082343/https://firefly.com/alpha/|url-status=live}}</ref> |
'''Firefly Alpha''' ('''Firefly α''') is a [[two-stage-to-orbit|two-stage]] orbital [[expendable launch system|expendable]] [[Small-lift launch vehicle|small lift launch vehicle]] developed by the American company [[Firefly Aerospace]] to [[Space launch market competition|compete]] in the commercial [[small satellite]] launch market. Alpha is intended to provide launch options for both full vehicle and [[Rideshare (aerospace)|rideshare]] customers.<ref name=FireflyAlpha_website>{{cite web|title=Firefly Alpha|url=https://firefly.com/alpha|access-date=1 October 2022|archive-date=22 September 2022|archive-url=https://web.archive.org/web/20220922082343/https://firefly.com/alpha/|url-status=live}}</ref> |
Revision as of 03:49, 4 July 2024
![]() Firefly Alpha lifting off the pad at Vandenberg Space Force Base on September 2, 2021 | |
Manufacturer | Firefly Aerospace |
---|---|
Country of origin | United States |
Cost per launch | US$15 million - US$17.6 million[1] |
Size | |
Height | 29 m (95 ft) |
Diameter | 1.82 m (6 ft 0 in) |
Mass | 54,000 kg (119,000 lb) |
Stages | 2 |
Capacity | |
Payload to low Earth orbit | |
Mass | 1,030 kg (2,270 lb)[2] |
Payload to Sun-synchronous orbit (500km) | |
Mass | 630 kg (1,390 lb) |
Launch history | |
Status | Active |
Launch sites | VSFB SLC-2W (Active)[3][4] Wallops, LP-0A (Planned)[5] CCSFS SLC-20 (Planned)[6] ESRANGE LC-3C (Planned)[7] |
Total launches | 5 |
Success(es) | 2 |
Failure(s) | 1 |
Partial failure(s) | 2 |
First flight | 3 September 2021[8] |
Last flight | 3 July 2024 |
First stage | |
Diameter | 1.82 m (6 ft 0 in) |
Powered by | 4 × Reaver 1 |
Maximum thrust | 736.1 kN (165,500 lbf) |
Specific impulse | 295.6 s (2.899 km/s) |
Propellant | RP-1 / LOX |
Second stage | |
Diameter | 1.82 m (6 ft 0 in) |
Powered by | 1 × Lightning 1 |
Maximum thrust | 70.1 kN (15,800 lbf) |
Specific impulse | 322.0 s (3.158 km/s) |
Propellant | RP-1 / LOX |
Firefly Alpha (Firefly α) is a two-stage orbital expendable small lift launch vehicle developed by the American company Firefly Aerospace to compete in the commercial small satellite launch market. Alpha is intended to provide launch options for both full vehicle and rideshare customers.[9]
The first launch attempt was on 3 September 2021 but the vehicle did not reach orbit when one of the first stage engines failed during ascent.[10] A second orbital test flight took place on 1 October 2022 and successfully reached orbit.[11] Alpha deployed 7 satellites, however, due to the lower than intended deployment orbit, most of the satellites re-entered before reaching their intended design life a week after launch.[12][13][14][15] The first fully successful launch of Alpha took place on 15 September 2023.
History
The initial 2014-vintage design of Alpha was two-stage-to-orbit vehicle with the first stage powered by an FRE-2 methalox engine, which consisted of twelve nozzles arranged in an aerospike configuration.[16] The engine used methane and liquid oxygen as propellants, and completed a full-duration combustor test in September 2016.[17] The second stage was to be propelled by the FRE-1 engine[clarification needed], which was to use a conventional bell nozzle. This version of Alpha was intended to carry 400 kg to low Earth orbit.[18][19]
In 2015, NASA's Launch Services Program awarded Firefly Space Systems, the predecessor to Firefly Aerospace, a US$5.5 million Venture Class Launch Services contract to incentivize the development of Alpha, as part of a program to enable easier space access for the small satellite market.[20][21][clarification needed]
After the March 2017 bankruptcy of Firefly Space Systems[22] and corporate reorganization to become Firefly Aerospace with new owners and capital,[6] the Alpha launch vehicle was redesigned to a much larger rocket, over twice as much capacity as the Alpha design of 2014. The version 2 Alpha vehicle still utilizes two stages to orbit, but now both are 1.8 m (5 ft 11 in) in diameter and use RP-1/LOX propellants.[2] The main body of the rocket is constructed using a lightweight carbon composite material.[4]
In March 2018, Firefly said that the development of Alpha was expected to cost approximately US$100 million.[23]
Firefly Aerospace planned[when?] to use a Horizontal Integration Facility (HIF) to integrate payloads.[4]
The first test launch and Maiden flight of Firefly Alpha occurred on 3 September 2021 at 01:59 UTC,[8][24] from a leased pad at Vandenberg Space Force Base in California, and was to fly southwest over the Pacific Ocean.[25] Due to an engine failure caused by a sensor cable disconnect approximately 15 seconds after the launch, the rocket lost control at transonic speeds approximately two and a half minutes after launch that resulted in manual activation of the flight termination system and loss of the vehicle.[10][26][27] The launch vehicle had onboard various payloads as part of Firefly's DREAM mission[28]—including Benchmark Space BSS1, Firefly Capsule 1, and PICOBUS[29] (intending to deploy six PocketQubes), Hiapo, Spinnaker3, and TIS Serenity[30][31]—which were destroyed. Firefly's experimental Space Utility Vehicle (SUV) third stage was also onboard this flight.
Design
The Alpha first stage is powered by four Reaver 1 LOX / RP-1 tap-off cycle engines,[32] delivering 736 kN (165,000 lbf) of thrust. The second stage is powered by one Lightning 1 LOX / RP-1 engine, delivering 70.1 kN (15,800 lbf) of thrust with a specific impulse (Isp) of 322 seconds.[2] Lightning 1 was test-run for nearly 5 minutes on 15 March 2018 during a long duration test fire on Firefly's Test Stand 1 in Briggs, Texas.[23][33]
The Alpha airframe uses all carbon-fiber composite material in its construction. Using carbon-fiber makes the rocket more fuel efficient because the use of denser materials like titanium and aluminum would result in a heavier airframe, which would require more fuel to launch.[23]
Intended usage
Alpha is designed to launch up to 1170 kg of payload to a 200 km low Earth orbit, or up to 745 kg payload to a 500 km Sun-synchronous orbit, suitable for CubeSats and other small payloads.[2] Primary payloads can be integrated by themselves or with a secondary payload, with vehicle capacity for up to 6 CubeSats.[9][4] This allows Firefly's customers to have a dedicated small-satellite launcher, reducing the issues of ridesharing payloads and secondary payloads. These smaller satellites can have an orbit that is not determined by a larger payload and can launch on their own schedule instead of waiting on the readiness of all other payloads.[citation needed]
Alpha is also intended to be a direct American competitor in the small satellite market to India's Polar Satellite Launch Vehicle (PSLV), as the company believes that PSLV's ride-share capability threatens U.S. domestic launchers in this market.[34]
Launch sites
Firefly Aerospace is leasing Vandenberg pad SLC-2W to support Firefly Alpha and MLV launches; this launch pad formerly supported Delta, Thor-Agena, and Delta II launch vehicles launches.[3] Additionally, Firefly plans to refurbish and utilize[when?] Cape Canaveral SLC-20 for low-inclination launches of Alpha in the future.[6]
Launch history
Date and time, UTC | Launch site | Payload | Orbit | Customer | Launch outcome |
---|---|---|---|---|---|
3 September 2021 01:59[26] |
Vandenberg SLC-2W | Various | Retrograde LEO | Failure | |
Maiden flight of the Firefly Alpha; carrying various payloads as part of their DREAM mission.[28] Due to an engine failure approximately 15 seconds after the launch, the rocket lost control at transonic speed approximately two and a half minutes after launch that resulted in the activation of the flight termination system and loss of the vehicle.[35] | |||||
1 October 2022 07:01[15] |
Vandenberg SLC-2W | TechEdSat-15 (TES-15), TIS Serenity, PicoBus (deploying five PocketQubes) | target: Retrograde LEO (300 km circular, 137° inclination) actual: Retrograde LEO (219 km x 279 km, 136.9° inclination)[36] |
NASA Ames, SJSU, Teachers in Space, Inc., Libre Space Foundation, Fossa Systems, AMSAT-EA | Partial failure |
"To The Black". First partially successful orbital launch, carrying educational payloads, including a hosted payload, Firefly Capsule 2. Alpha deployed 7 satellites, however, due to the lower than intended final deployment orbit, most of the satellites re-entered approximately a week after launch. | |||||
15 September 2023 02:28[37] |
Vandenberg SLC-2W | Victus Nox | Space Systems Command | Success | |
Tactically Responsive Space-3 (TacRS-3) mission to display rapid response launch capabilities — the payload was integrated and launched 27 hours after launch order were received from the customer. First fully successful launch of Alpha. Second stage performed a re-ignition for a controlled deorbit.[38] | |||||
22 December 2023 17:32[39] |
Vandenberg SLC-2W | Tantrum (Electronically Steerable Antenna Demo) | Lockheed Martin | Partial failure | |
"Fly the Lightning". Dedicated commercial launch, carrying a technology demonstrator payload for Lockheed Martin integrated on a Terran Orbital Nebula satellite bus. Stage 2 engine relight did not deliver the payload to its planned target orbit. Communications to the spacecraft were established and some mission operations took place. The satellite decayed on 10 February 2024 ~15:00.[40] | |||||
4 | Vandenberg SLC-2W | VCLS Demo-2FB | NASA | Success | |
"Noise of Summer". NASA Venture Class Launch Services 2 (VCLS 2) Mission Two, officially known as VCLS Demo-2FB. The ELaNa 43 mission, consisting of eight CubeSats, will launch on this flight.[43][44] | |||||
15 October 2024[45][46] | Vandenberg SLC-2W | Elytra | NRO / Firefly Aerospace / Xtenti | ||
NRO Responsive Space Mission, carrying Firefly's Elytra orbital transfer vehicle and Xtenti's FANTM-RiDE payload dispenser. | |||||
2024[47][48] | Vandenberg SLC-2W | Dedicated rideshare mission | Spaceflight, Inc. | ||
Dedicated smallsat rideshare mission to low Earth orbit utilizing Firefly's Elytra Dawn orbital tug. | |||||
2024[47][49] | Vandenberg SLC-2W | Satlantis EO Constellation | Satlantis | ||
Satlantis earth observation satellite constellation. | |||||
2024[50][51] | Vandenberg SLC-2W | EOS SAR 1 | EOS Data Analytics | ||
First EOS synthetic-aperture radar (SAR) constellation satellite. | |||||
2024[52] | Vandenberg SLC-2W | Lockheed Martin | |||
First of 15 launches contracted with Lockheed Martin through 2029 with options for 10 more launches. | |||||
2026[53] | Vandenberg SLC-2W | L3Harris | |||
First of three dedicated launches for L3Harris. | |||||
2026[53] | Vandenberg SLC-2W | L3Harris | |||
Second of three dedicated launches for L3Harris. | |||||
2026[53] | Vandenberg SLC-2W | L3Harris | |||
Third of three dedicated launches for L3Harris. |
See also
- Rocket Lab Electron
- Vega
- Polar Satellite Launch Vehicle
- Small Satellite Launch Vehicle
- Small-lift launch vehicle
References
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