Author Topic: Orbital Services Program-4 (OSP-4)  (Read 3633 times)

Offline soltasto

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Orbital Services Program-4 (OSP-4)
« on: 08/16/2019 07:04 pm »
Since I can't see a thread about it on the forum, I'm just gonna post it here.

Here is the Orbital Services Program-4 (OSP-4) draft Request for Proposal (RFP)

It was originally released on May 30, 2019 and it was last updated Aug 01, 2019.

The Jun 14, 2019 update added AMENDMENT 1 – First Mission Task Order planned to be awarded under OSP-4, Space Test Program Small Spacelift #28 (STP-S28), posted for industry’s feedback.

Attached here the presentation slides of the program as well as the program's most important features and requirements (IMO).

Main requirements being:

400 lb to LEO
approx. 8,000 lb to Geostationary Transfer Orbit (GTO)

This leaves large room to competitors, possibly ranging from the small electron to the large Falcon 9.

Offline gongora

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Re: Orbital Services Program-4 (OSP-4)
« Reply #1 on: 08/16/2019 07:30 pm »
I saw this a couple days ago but was looking for the final RFP that was supposedly released and never found it. 

This is the program that can be used to check out new launch vehicles.  As well as the small launchers, the previous OSP contract was used for the first DoD missions on F9 and FH.  (Having the STP-2 mission under this type of contract instead of the EELV program made it much easier to allow the reused boosters on that flight.) 

For those with the expertise to use them (which is basically Northrup) the government can furnish surplus Minuteman and Peacekeeper rocket motors for the bargain price of about $2M per stage.

This contract has annual onramps, so new vehicles can be added periodically.

Here is the USAF release:
Space and Missile Systems Center releases Orbital Services Program(OSP)-4 solicitation

By SMC Public Affairs, Space and Missile Systems Center / Published August 14, 2019
The U.S. Air Force’s Rocket Systems Launch Program Office, part of the Space and Missile Systems Center’s Launch Enterprise, released a solicitation for the Orbital Services Program-4 Indefinite Delivery/Indefinite Quantity contract today.

“The OSP-4 contract will build on our Rocket Systems Launch Program’s legacy of success dating back to the early 1960’s by supporting Department of Defense and U.S. government agencies’ small launch efforts for the next nine years,” said Col. Rob Bongiovi, director of SMC’s Launch Enterprise. “In today’s contested space domain, contracts must be flexible and responsive to meet the challenges facing the warfighter. The program balances technology, mission risk, and schedule while leveraging rapidly evolving market forces to cultivate a resilient and affordable launch capability for U.S. government needs,” said Bongiovi.

OSP-4 is a follow-on to the OSP-3 contract that is set to expire in November. OSP-4 will allow for the rapid acquisition of launch services to meet mission requirements enabling launch within 12-24 months from task order award on a competitive basis. It is designed to accommodate payloads greater than 400 lbs. The Air Force projects to procure about 20 missions over the nine year period.

“The OSP-3 contract was very successful and served the Launch Enterprise well with five awarded missions. For example, we partnered with NOAA, NASA, and academia to launch 24 satellites using SpaceX’s Falcon Heavy rocket,” said Lt. Col. Ryan Rose, chief of the Small Launch and Targets Division at Kirtland Air Force Base, New Mexico.

“This mission demonstrated innovations, like reusability, from new entrants that could drive down the cost and enhance reliability of National Security Space launch. And later this year Northrop Grumman Innovation Systems will launch a National Reconnaissance Office payload using a Minotaur launch vehicle. We believe OSP-4 will be equally successful as a showcase for industry innovation and a gateway to even more affordable space launch, because we are able to take more risks, more quickly to produce high rewards for the Launch Enterprise,” said Rose.

Proposals are due by Aug. 29, 2019. The Air Force intends to award an IDIQ contract to multiple awardees by the end of the year with an opportunity to on-ramp new providers in future years.

Air Force Space Command's Space and Missile Systems Center, located at Los Angeles Air Force Base in El Segundo, California, is the U.S. Air Force's center of excellence for acquiring and developing military space systems.  SMC’s portfolio includes space launch, global positioning, military space vehicle communications, defense meteorological space vehicles, range systems, space vehicle control networks, space-based infrared systems, and space situational awareness capabilities.
« Last Edit: 08/16/2019 07:33 pm by gongora »

Online Galactic Penguin SST

Re: Orbital Services Program-4 (OSP-4)
« Reply #2 on: 10/11/2019 06:03 am »

8 companies have been chosen to compete.

Does anyone knows about Xbow Launch Systems and Vox Space? Never heard of these two companies.

SpaceX, Xbow Launch Systems, Northrop Grumman, Firefly Aerospace, United Launch Alliance, Aevum, Vox Space and Rocket Lab have been selected to provide launch services in the Orbital Services Program-4
« Last Edit: 03/14/2020 01:03 am by gongora »
Astronomy & spaceflight geek penguin. In a relationship w/ Space Shuttle Discovery. Current Priority: Chasing the Chinese Spaceflight Wonder Egg & A Certain Chinese Mars Rover

Online vaporcobra

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Re: Orbital Services Program-4 (OSP-4)
« Reply #3 on: 10/11/2019 06:08 am »

8 companies have been chosen to compete.

Does anyone knows about Xbow Launch Systems and Vox Space? Never heard of these two companies.

Vox Space is Virgin Orbit's randomly separate military launch subsidiary.

Offline su27k

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Re: Orbital Services Program-4 (OSP-4)
« Reply #4 on: 10/11/2019 07:07 am »

8 companies have been chosen to compete.

Does anyone knows about Xbow Launch Systems and Vox Space? Never heard of these two companies.

It seems that Xbow is the commercial reincarnation of Super Strypi, see the background image they're using on their (nothing to see) homepage:

Also they got a SBIR for solid propellant:, PI is Jason Hundley, who has a written testimony on page 8 of

A Hawai‘i launch facility would be an ideal home base of operations for the X-Bow commercial
launch vehicle, a rocket technology based on the LEONIDAS program conceived and managed by
the Hawai‘i Space Flight Laboratory at the University of Hawai‘i.

Offline Vahe231991

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Re: Orbital Services Program-4 (OSP-4)
« Reply #5 on: 05/18/2021 07:44 pm »
If anyone forgot, Vox Space won an initial $35 million OSP-4 task order in April 2020 to launch multiple technology demonstrations for the Space Test Program-S28 mission.

Offline Yiosie

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Re: Orbital Services Program-4 (OSP-4)
« Reply #6 on: 08/11/2021 10:10 am »

ABL, Astra, and Relativity have been added to the pool, bringing the total up to 11 companies now eligible for contracts.

More OSP-4 details in the article, including when the next contract will be awarded:
OSP-4 is an indefinite delivery/indefinite quantity (IDIQ) contract for rapid acquisition of launch services. Vendors compete for individual orders, and have to be able to launch payloads larger than 400 pounds to any orbit within 12 to 24 months from contract award.
There are now 11 vendors in the program that will compete for 20 missions over the next nine years. OSP-4 is authorized up to $986 million for launch contracts over that period.
The U.S. Space Force previously awarded two contracts on OSP-4 with the Space Test Program-S28 mission to VOX Space and Tactically Responsive Launch-2 mission to Northrop Grumman.

SMC’s Launch Enterprise expects to award the next task order in support of the Space Test Program’s USSF-46S mission later this summer.

Tags: osp-4 solicitation 

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