Author Topic: EXOS aerospace (Read 123207 times)

Steven Pietrobon · « **Reply #240 on:** 06/29/2019 06:09 pm »

Should be heading to the primary landing zone. There is also a secondary location and the vehicle is programmed to avoid buildings and other sites.

Steven Pietrobon · « **Reply #241 on:** 06/29/2019 06:10 pm »

Venting has completed. Vehicle is right above them.

Steven Pietrobon · « **Reply #242 on:** 06/29/2019 06:10 pm »

Nice closeup.

Steven Pietrobon · « **Reply #243 on:** 06/29/2019 06:11 pm »

T+11 minutes.

Steven Pietrobon · « **Reply #244 on:** 06/29/2019 06:12 pm »

Making a turn.

Steven Pietrobon · « **Reply #245 on:** 06/29/2019 06:14 pm »

Drogue (attached to nosecone) has landed.

Steven Pietrobon · « **Reply #246 on:** 06/29/2019 06:14 pm »

Touchdown!

Steven Pietrobon · « **Reply #247 on:** 06/29/2019 06:15 pm »

Had a performance challenge on the gimbal.

Steven Pietrobon · « **Reply #248 on:** 06/29/2019 06:17 pm »

Vehicle is safe to approach and they'll be going out to retrieve it.

End of webcast.

Chris Bergin · « **Reply #249 on:** 06/29/2019 06:25 pm »

Launch video and recovery:

https://twitter.com/NASASpaceflight/status/1145034562860453888

Steven Pietrobon · « **Reply #250 on:** 06/29/2019 06:25 pm »

Bad luck to EXOS Aerospace that the launch was not successful, but congratulations on successfully recovery of the payload and rocket! I'm going to class this as a partial failure.

TrevorMonty · « **Reply #251 on:** 06/29/2019 08:23 pm »

Quote from: Steven Pietrobon on 06/29/2019 06:25 pm

Bad luck to EXOS Aerospace that the launch was not successful, but congratulations on successfully recovery of the payload and rocket! I'm going to class this as a partial failure.

Welcome to world of RLVs, failed launch followed by successful recovery.

Steven Pietrobon · « **Reply #252 on:** 06/30/2019 04:17 am »

From the announced values I get a dry mass of 511 kg, fuel mass of 300 kg, oxidiser mass of 410 kg, propellant mass of 710 kg and total mass of 1221 kg. The oxidiser to fuel ratio seems pretty low at 1.37 to 1. Dry mass to total mass is a high 42%.

EXOSBrett · « **Reply #253 on:** 06/30/2019 11:45 pm »

this is disappointing. Haven't had time to talk to guys about what exactly went wrong, but from the youtube video... it doesn't look good.

Robotbeat · « **Reply #254 on:** 07/02/2019 06:44 pm »

I'm impressed with the recovery system, though. It was thought through well enough that they had a fuel dump, even.

I wish they'd get their launch rate up higher, though. Survivable failures like this are gold.

Navier–Stokes · « **Reply #255 on:** 07/13/2019 03:10 pm »

FutureSpaceTourist · « **Reply #256 on:** 07/14/2019 09:32 pm »

Couple more

Robotbeat · « **Reply #257 on:** 08/10/2019 12:15 am »

Quote from: Robotbeat on 07/02/2019 06:44 pm

I'm impressed with the recovery system, though. It was thought through well enough that they had a fuel dump, even.

I wish they'd get their launch rate up higher, though. Survivable failures like this are gold.

Bumping this thread in light of RocketLab Electron using a very similar recovery system.

Craftyatom · « **Reply #258 on:** 08/10/2019 07:00 pm »

Quote from: Robotbeat on 08/10/2019 12:15 am

Quote from: Robotbeat on 07/02/2019 06:44 pm
I'm impressed with the recovery system, though. It was thought through well enough that they had a fuel dump, even.

I wish they'd get their launch rate up higher, though. Survivable failures like this are gold.
Bumping this thread in light of RocketLab Electron using a very similar recovery system.

While there are superficial similarities, I'd expect the two systems to differ greatly in their details. Both appear to use a steered parafoil deployed from the top of the stage, but RL's will have to be integrated with its atmospheric entry system, while EXOS has to worry about landing speed and position.

Any similarities between the two systems are likely also shared with the old STIG-B, I believe.

russianhalo117 · « **Reply #259 on:** 08/10/2019 10:19 pm »

Quote from: Craftyatom on 08/10/2019 07:00 pm

Quote from: Robotbeat on 08/10/2019 12:15 am
Quote from: Robotbeat on 07/02/2019 06:44 pm
I'm impressed with the recovery system, though. It was thought through well enough that they had a fuel dump, even.

I wish they'd get their launch rate up higher, though. Survivable failures like this are gold.
Bumping this thread in light of RocketLab Electron using a very similar recovery system.
While there are superficial similarities, I'd expect the two systems to differ greatly in their details. Both appear to use a steered parafoil deployed from the top of the stage, but RL's will have to be integrated with its atmospheric entry system, while EXOS has to worry about landing speed and position.

Any similarities between the two systems are likely also shared with the old STIG-B, I believe.

SARGE AFAIK is just a rebranded STIG-B.