Questions tagged [antares]
Questions about the Antares launcher, built by Orbital Sciences.
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Did the Cygnus Orb-3 failure disable/destroy both engines?
When the Antares 130 rocket carrying the Cygnus Orb-3 mission experienced an explosion in one of its turbopumps, did that lead rapidly (before crashing / before RSO triggered flight termination) to a ...
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Falcon 9 CGT Force?
Curious how much force the Falcon 9 cold gas thrusters produce for steering? I've seen numbers in the range of 25--100 lbf, but not sure where in this range (or outside it) the Falcon 9 falls.
If you ...
user36480
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Antares yaw maneuver: how many degrees?
The Antares rocket begins launch with a very noticeable yaw maneuver that seems to rotate it more than the 1.25 degrees documented for the Saturn V. Am I being misled by perspective? Does anyone know ...
user36480
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How do they determine dynamic pressure has hit a max?
Max-Q is a key event during launch, and dynamic pressure is closely monitored so they know when a max is hit.
But how exactly do they know when Q hits a max? If you track the rate at which Q is ...
user36480
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What is this long black tube snaking up to the capsule payload of the Antares rocket?
Scott Manley's video The Antares Rocket - NASA's Less Famous Ride To The Space Station includes some file footage of Antares rocket launches.
There is a long black tube or cable snaking its way up to ...
- 149k
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Which rockets use(d) solid-fuel upper stages?
The Antares is unusual in that it's using solid-fuel in the second stage. I was surprised about that and a couple of questions immediately popped up which are already covered on this site: How can a ...
- 12.5k
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Advantages of a Solid Fueled Upper Stage
I was recently looking at the specs of the Antares launch vehicle and I was surprised to find out that they were using a solid fueled motor as their upper stage.
I've always learned that in the upper ...
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Where can I find examples of down-range launch exclusion zones for Falcon-9 and Antares orbital launches?
I generally understand the concept of the LDZ, but would like to look at actual examples for past Falcon and Antares orbital launches. How are private boaters and the general public warned about KSC/...
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Cygnus on a 3rd party launcher
With Orbital looking at using a 3rd party launch service for their CRS contract, they have stated that Cygnus was designed with this in mind.
Does anyone have information or ideas on how they ...
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Would two RD-190's be better or worse than a single RD-180?
With all the talk of re-engining Antares, many possibilities arise. Solids, new liquid engine, existing Russian engines (RD-180, RD-190), etc.
Focussing on the RD-1xx family though, an RD-180 is a ...
- 79.3k
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Progress M-25M launched because of Antares?
Was Progress M-25M launched in response to Antares' catastrophic failure or were they 2 different launches, both planned to reach the ISS "separately"?
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How should one analyze the video of the Antares CRS-3 explosion to find the clues to the cause?
From the raw video of the event (which just happened), a trained eye can narrow the possibilities, given good general knowledge of the rocket. What in the video indicates which systems were involved, ...
- 21.3k
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Why did a flight controller say "Avionics power nominal" as Antares exploded?
The Antares rocket carrying Cygnus just exploded. A video is available here, explosion at around 4:19.
In the video, right as the rocket begins to slide down and explode, a flight controller says "...
- 18k
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What entails "Avionics" on the Antares Rocket?
In today's crash, seen below, there was a control operator who stated, right as the rocket blew up, "Avionics Power nominal". What does that mean exactly? Was he referring to the rocket power, power ...
- 121k
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Quite some lateral wobble immediately following Antares Orb-2 liftoff. Is that normal?
Orbital Sciences just launched (July 13, 2014 at 12:52 EST) their Orb-2 resupply mission to the International Space Station with Cygnus resupply vehicle onboard the Antares rocket (named SS Janice ...
- 76.5k
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What replacement engine options are there for Antares?
Lots of articles out about how Orbital Sciences is talking with three vendors for a replacement for the NK-33/AJ26 engine pair currently used on the Antares booster.
An article on SpaceNews notes ...
- 79.3k
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How do you handle variations in launches with a solid second stage?
Watching the Antares launch for Orb-1 mission of Cygnus, I was thinking about the booster.
First stage is built in Ukraine by the company that makes the Zenit. They use the NK-33 engine, (Called an ...
- 79.3k