Quote from: trimeta on 04/07/2023 02:34 pmQuote from: russianhalo117 on 04/07/2023 04:40 amThat is a flat out no for SSTO. There are no sustainer engines on any stage burning from horizontal take-off all the way to the inital orbital insertion during the burn of the flight to even be called an SSTO. A carrier aircraft is classed as Stage-0.If you're counting the carrier aircraft as Stage 0, then the rocket itself (which has only one stage) would be an SSTO, no? Although if you wanted to call the plane Stage 1 and the rocket Stage 2 (thus making it a TSTO), I wouldn't argue.The previous poster was referring to the Mk-III version which is flying the second stage therefore it is TSTO. It is not being released from a carrier aircraft. Dawn Aerospace is classing their system as a TSTO system.
Quote from: russianhalo117 on 04/07/2023 04:40 amThat is a flat out no for SSTO. There are no sustainer engines on any stage burning from horizontal take-off all the way to the inital orbital insertion during the burn of the flight to even be called an SSTO. A carrier aircraft is classed as Stage-0.If you're counting the carrier aircraft as Stage 0, then the rocket itself (which has only one stage) would be an SSTO, no? Although if you wanted to call the plane Stage 1 and the rocket Stage 2 (thus making it a TSTO), I wouldn't argue.
That is a flat out no for SSTO. There are no sustainer engines on any stage burning from horizontal take-off all the way to the inital orbital insertion during the burn of the flight to even be called an SSTO. A carrier aircraft is classed as Stage-0.
Dawn flies rocket-powered spaceplane [dated Apr. 5]Quote from: SpaceNewsDawn Aerospace completed its first series of rocket-powered flights last week.Mk-II Aurora, a scaled down version of the spaceplane Dawn is developing for commercial operations, took to the skies March 29, 30 and 31 from New Zealand’s Gentanner Aerodrome.The initial test campaign validated key flight systems and demonstrated the benefit of rapid reusability, Dawn CEO Stefan Powell told SpaceNews.During the first flight, the Mk-II Aurora consumed more fuel than anticipated due to a leak in the propellant system. The next day, Dawn engineers removed the Mk-II Aurora engine, took out the oxidizer tank and found the leak.“It was reasonably trivial to fix that, put it back together and fly again,” Powell said. “That speaks to just how different this concept is than a regular rocket. Not only would you have not gotten the vehicle back, but you wouldn’t have been able to execute a repair and show that it works in the same day.”<snip>The Mk-II is designed to reach an altitude of 20 kilometers. During initial flight tests, the vehicle flew to roughly 2,000 meters and traveled at a maximum speed of 315 kilometers per hour.
Dawn Aerospace completed its first series of rocket-powered flights last week.Mk-II Aurora, a scaled down version of the spaceplane Dawn is developing for commercial operations, took to the skies March 29, 30 and 31 from New Zealand’s Gentanner Aerodrome.The initial test campaign validated key flight systems and demonstrated the benefit of rapid reusability, Dawn CEO Stefan Powell told SpaceNews.During the first flight, the Mk-II Aurora consumed more fuel than anticipated due to a leak in the propellant system. The next day, Dawn engineers removed the Mk-II Aurora engine, took out the oxidizer tank and found the leak.“It was reasonably trivial to fix that, put it back together and fly again,” Powell said. “That speaks to just how different this concept is than a regular rocket. Not only would you have not gotten the vehicle back, but you wouldn’t have been able to execute a repair and show that it works in the same day.”<snip>The Mk-II is designed to reach an altitude of 20 kilometers. During initial flight tests, the vehicle flew to roughly 2,000 meters and traveled at a maximum speed of 315 kilometers per hour.
Quote from: Yiosie on 04/05/2023 06:17 pmDawn flies rocket-powered spaceplane [dated Apr. 5]Quote from: SpaceNewsDawn Aerospace completed its first series of rocket-powered flights last week.Mk-II Aurora, a scaled down version of the spaceplane Dawn is developing for commercial operations, took to the skies March 29, 30 and 31 from New Zealand’s Gentanner Aerodrome.The initial test campaign validated key flight systems and demonstrated the benefit of rapid reusability, Dawn CEO Stefan Powell told SpaceNews.During the first flight, the Mk-II Aurora consumed more fuel than anticipated due to a leak in the propellant system. The next day, Dawn engineers removed the Mk-II Aurora engine, took out the oxidizer tank and found the leak.“It was reasonably trivial to fix that, put it back together and fly again,” Powell said. “That speaks to just how different this concept is than a regular rocket. Not only would you have not gotten the vehicle back, but you wouldn’t have been able to execute a repair and show that it works in the same day.”<snip>The Mk-II is designed to reach an altitude of 20 kilometers. During initial flight tests, the vehicle flew to roughly 2,000 meters and traveled at a maximum speed of 315 kilometers per hour.That 20km altitude comment is bit misleading sounds like it is max. Specifications on webpage is 110km with upto 180seconds of microgravity.https://www.dawnaerospace.com/spacelaunch
Where is the dislike button?An image says more than a thousand words. thus ...
Our first ever composite common dome structure is on the test stand as we undergo development testing for our Medium Launch Vehicle. This configuration allows us to cut out the entire intertank, significantly reducing vehicle weight with fewer parts. pic.twitter.com/hltMeP6qnE
Good article on why Dawn use nitrous oxide and propylene (aka propene) to fuel their satellite thrusters. Auroa II rocket plane uses H202 as oxidizer not sure of propellant. Engine has monopropellant mode which is H202, for low thrust. See the latest youtube video from them and comments.
These are the faces of a happy team holding the 100th B20 thruster off the production line! A milestone we hit last week!🎉🚀#greenpropulsion
The first B20 was produced in 2020. Since then, we have scaled up production significantly and are now producing them at rate of 2 per week. This year alone, we’ll produce and ship 100 of these to customers around the globe 🛰
Excellent video on their spaceplane. Didn't know it was electric pump rocket engine, kind of makes sense given they are a NZ+Dutch company.
twitter.com/astro_rayyanah/status/1663289138831867904QuoteThe first B20 was produced in 2020. Since then, we have scaled up production significantly and are now producing them at rate of 2 per week. This year alone, we’ll produce and ship 100 of these to customers around the globe 🛰
Quote from: FutureSpaceTourist on 05/30/2023 06:40 amtwitter.com/astro_rayyanah/status/1663289138831867904QuoteThe first B20 was produced in 2020. Since then, we have scaled up production significantly and are now producing them at rate of 2 per week. This year alone, we’ll produce and ship 100 of these to customers around the globe Which also means they have a regular cash flow and are not entirely investor dependent.Doesn't guarantee success, but it does improve their odds a bit.
twitter.com/astro_rayyanah/status/1663289138831867904QuoteThe first B20 was produced in 2020. Since then, we have scaled up production significantly and are now producing them at rate of 2 per week. This year alone, we’ll produce and ship 100 of these to customers around the globe
The first B20 was produced in 2020. Since then, we have scaled up production significantly and are now producing them at rate of 2 per week. This year alone, we’ll produce and ship 100 of these to customers around the globe
Could've also included XCOR but video was about Dawn not history of spaceplanes.