Good Luck, Have Enjoyable | Terran 1

Launch Window
(Topic to vary)
March 08, 2023 – 18:00-21:00 UTC | 13:00-16:00 EST
Mission Identify
Good Luck, Have Enjoyable (GLHF)
Launch Supplier
(What rocket firm is launching it?)
Relativity House
(Who’s paying for this?)
Relativity House
Terran 1
Launch Location
Launch Advanced 16 (LC-16), Cape Canaveral House Drive Station, USA
Payload mass
There isn’t a payload on this take a look at launch besides a 3D printed steel ring weighing ~1.5 kg (~ 3.3 lb)
The place is the satellite tv for pc going?
Will they be making an attempt to recuperate the primary stage?
No, this isn’t a functionality of Terran 1
The place will the primary stage land?
It’s going to crash into the Atlantic Ocean
Will they be making an attempt to recuperate the fairings?
Are these fairings new?
How’s the climate trying?
Climate is at present 95% GO for launch (as of March 04, 2023 – 15:00 UTC).
This would be the:
– 1st mission for Relativitiy
– 1st launch from SLC-16 in 35 years
– 1st launch of Terran 1

– 1st launch of a 3D printed rocket
– thirty second orbital launch try of 2023
The place to look at
Official livestream

Tim Dodd, the On a regular basis Astronaut, might be streaming at round T-Half-hour; come ask questions and be a part of the dialog stay!

What Does All This Imply?

Good Luck, Have Enjoyable (GLHF) is Relativity House’s first mission taking off from Launch Advanced 16 (LC-16) on the Cape Canaveral House Drive Station, USA. This launch would be the first 3D printed rocket to ever take to the skies. Since this can be a take a look at flight for the corporate to show Terran 1’s capabilities there’s solely a small 3D printed steel plug underneath the nostril cone and no actual payload. After the failed maiden flight of the Chinese language Zhuque-2, Relativity House is taking a shot on the title of getting the primary methane powered rocket into orbit.

Relativity House’s Terran 1 on the pad throughout sundown. (Credit score: Trevor Mahlmann)

Good Luck, Have Enjoyable

Good Luck, Have Enjoyable (GLHF) is Relativity House’s first ever mission with its 3D printed Terran 1 rocket. The missions purpose is to check the rocket’s capabilities to succeed in orbit. As a substitute of a extra conventional fairing on prime of the rocket’s second stage Terran 1 is sporting a non-deployable nostril cone that lets the rocket look extra like a facet booster of a much bigger one like Falcon Heavy. Whereas GLHF is not going to carry any payload to orbit there’s a 16.5 cm aluminum ring positioned beneath the nostril cone. The – by the corporate’s first era steel 3D printer printed – ring pays homage to the journey main as much as Terran 1’s first launch.

Good Luck Have Fun, GLHF, 3D printed metal ring, Relativity Space, Terran 1
3D printed aluminum ring that may hitch a journey to orbit on Terran 1’s first launch GLHF. (Credit score: Relativity House)

Mission Timeline


From Elevate-Off
– 01:00:00 Automated Countdown Sequence Begins
– 00:55:00 Begin Propellant Loading
– 00:27:00 Vary Readiness Examine (USAF & Coast Guard)
– 00:12:00 Countdown Recycle Level
– 00:03:00 Propellants at Flight Ranges
– 00:02:00 Switch to Inside Energy Full
– 00:01:05 Ultimate AFSS (autonomous flight security system) Standing Examine
– 00:01:00 Flight Pc Startup
– 00:00:45 Launch Director Go/No-Go
– 00:00:15 Terran Configured for Flight
– 00:00:03.5 Aeon Engine Ignition
– 00:00:00 Elevate Off
All occasions are approximate.

What Is Terran 1?

Relativity House’s Terran 1 is an expendable small-lift launch car designed and developed particularly to put small satellites into LEO and Solar-synchronous orbits (SSO). Terran 1 is a two stage methalox powered rocket often standing 35 m (115 ft) tall with a diameter of two.3 m (7.5 ft). On the corporate’s first mission Good Luck, Have Enjoyable, Terran 1 is just 33.5 m (110 ft) in peak due to the shortage of a payload fairing that was changed by a nostril cone, as a result of there isn’t a payload on this take a look at flight.

Distinctive about this rocket is that 85% of its mass is being 3D printed by Relativity House’s steel 3D printer Stargate. Stargate is the biggest steel 3D printer that produces the rocket’s tanks constructed from a proprietary aluminum alloy. Steel 3D printing has been utilized by many new area launch suppliers printing complicated elements, principally for his or her engines. Relativity House is taking it a step additional by not solely 3D printing massive elements of their engines, but in addition printing the tanks of Terran 1, which reduces the general half rely and complexity of the rocket. Terran 1 is designed with a goal payload capability of as much as 1,250 kg to a 185 km LEO and 900 kg to a 500 km SSO.

Terran 1, good luck have fun, roll out
Relativity House’s Terran 1 rocket throughout roll out. (Credit score: Trevor Mahlmann)

First And Second Stage

First Stage Second Stage
Engine 9 Aeon-1 engines 1 vacuum optimized AeonVac engine
Thrust Per Engine (Sea stage | Vacuum) 100 kN (22,480 lbf) | 113 kN (25,400 lbf) 125.8 kN (28,300 lbf)

Terran 1’s first stage consists of 3D printed widespread bulkhead tanks for propellant, in addition to a 3D printed interstage containing the pneumatic pusher stage separation system. The primary stage is powered by 9 Aeon-1 engines producing a complete of 900 kN (~200,000 lbf) at carry off with a most thrust of ~ 1 MN in a vacuum. Like the primary stage, the second stage additionally consists of 3D printed tanks for propellant that includes widespread tank bulkheads and is powered by a single vacuum optimized AeonVac engine. The primary distinction between these two variations of the Aeon engine is that the latter has an expanded nozzle that ends in improved efficiency in near-vacuum situations with an growth ratio of 165:1.

Aeon-1 Engine

Terran 1 is powered by ten Aeon-1 engines, with one among them being positioned on the second stage. Aeon-1 engines, designed and constructed in-house by Relativity House are methalox engines which means they use methane as gasoline and oxygen as their oxidizer. To be extra exact, the Aeon-1 engine runs on LNG (liquid pure gasoline), which consists of 97% methane with the opposite 3% being different pure gases.

Aeon-1 hot fire test
Sizzling fireplace take a look at of an Aeon-1 engine at Relativity House’s take a look at facility at Stennis, Mississippi. (Credit score: Relativity House)

Identical to Terran 1’s tanks, the vast majority of the Aeon-1 engine is 3D printed permitting for creating complicated inside buildings. With two turbopump assemblies, one for LNG and one for LOx, Aeon-1 engines run on a gasoline generator open cycle, with the combustion chambers being regeneratively cooled by pumping LNG via the partitions of the engine.

Relativity House

Relativity House was based again in 2015 by Tim Ellis and Jordan Noone, with its headquarter positioned in Lengthy Seashore, California. They based the brand new area firm with the concept of constructing the primary 3D printed rocket to succeed in area. After six funding rounds, Relativity House secured over $1.3 billion of funding supporting the event of their expendable small carry rocket Terran 1, in addition to their totally reusable medium carry rocket Terran R.

Right now, Relativity House employs over 700 folks throughout its six areas – Lengthy Seashore, Stennis, Cape Canaveral, Washington D.C. Vandenberg, and Seattle. With an engine take a look at middle at NASA’s Stennis House Heart, an operational launch website at LC-16 at CCSFS and a deliberate one at Vandenberg House Drive Base, Relativity House is among the quickest increasing new area corporations aiming for full reusability with their second rocket – Terran R.

Future Of Relativity House – Terran R

Earlier than Relativity House’s maiden launch of its first rocket, Terran 1, the corporate already introduced a completely reusable launch car – Terran R. This medium carry launch car might be designed to hold over 20,000 kg or payload into LEO, whereas being totally reusable, placing it in the identical class of rocket as SpaceX’s Falcon 9. Identical to Terran 1, Terran R might be 3D printed by the corporate’s 4th era Stargate steel 3D printer.

Outfitted with seven LNG burning Aeon-R engines on the primary stage and one vacuum optimized one on the higher stage, the car is scheduled to carry off from Cape Canaveral as early as 2024.

Terran 1, Terran R, Relativity Space
A render of Terran 1 (left) and Terran R (proper) subsequent to one another. (Credit score: Relativity House)

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