* Posts by Vulch

305 posts • joined 28 May 2008

Page:

KRAKKOOM! SpaceX Falcon supply mission to ISS EXPLODES minutes after launch

Vulch

Re: Third time lucky?

Press conference said something about a filter bed for the water recycler being a replacement for one that was lost in the Antares boom. I think they also said the Dragon was due to bring the old one back so they could check what it had been filtering out...

1
0
Vulch

Re: Motoring along...

A tweet from Elon Musk suggested it was an over-pressure event in the second stage oxygen tank. So probably something like tank burst causing debris which took out the first stage.

At the press conference that has just finished Gwen Shotwell of SPaceX said she wasn't aware of the range safety being used. There were also comments that telemetry from the Dragon carried on after the event.

2
0
Vulch

Re: It was the cabbages, I say!

Lightning protection. Lots of thunderstorms in the area year round and you really don't want your rocket being the tallest conductive thing in the area.

7
2

SpaceX gets ready to crash barge-land ANOTHER rocket

Vulch

"What????????? Thunderbird 3 was ORANGE"

On a 1960s black and white television it was Red!

0
0
Vulch

Deary me, no. It should lower itself down through the hole in the middle of the Round House.

Mind you, it should also be painted pillar box red...

2
0

Hubble spots Pluto's moons are a chaotic mess of tumbling rock

Vulch

Re: Never mind the orbits

It's a guess. There's enough evidence to tell they're not spherical and none of the four small moons have enough self-gravity to make them that way, so they're going to look like mid-sized asteroids.

0
0

NASA hands Boeing first commercial crew contract for SPAAAACE

Vulch

Re: CST-100's schedule looks interesting

Presumably an in-flight abort test will happen in March

Boeing don't feel the need to do a live in-flight abort test, their simulations are considered adequate.

1
0

PHOTON SPACE SAIL successfully Kickstarted into orbit

Vulch

Interplanetary

The Japanese launched Ikaros five years ago next week.

4
0

Mildly successful flying car crashes - in mildly successful test flight

Vulch
Black Helicopters

Re: an unexpected situation

Still undergoing test flights and already certified? Certified as what

Certified as a flying test prototype. Without certification you don't get off the ground.

22
0

SpaceX Dragon crew capsule in 'CHUTE ABORT drama – don't panic, no one died

Vulch

Re: Not dead, but dizzy

under the nose cone is the complete exit and entrance hatch

There's also a side hatch on both versions of the Dragon.

0
0
Vulch

Re: Lets hope this is never needed

My first thought was why not deploy the parachutes before dumping the trunk.

Because the capsule will be facing the wrong way and there would be a very high chance of the rigging getting tangled on the trunk leading to a Bad Day. Though I suppose if you've already needed to abort, getting the parachutes wrapped round the trunk would make it a Worse Day.

0
0
Vulch

Go

By one of those coincidences I had the radio going in my headphones mixed with the audio from the webcast. Just before SpaceX started their T-13 minute poll the radio started playing Public Service Broadcastings "Go!" so I had two teams 46 years apart polling.

Nicked from /., an unmanned Mercury abort comes down a similar distance offshore https://youtu.be/Vp9BnBDKa0s?t=5m55s

4
0

Mars needs TRAFFIC COP to stop probe prangs, says NASA

Vulch

Older orbiters still there

Mariner 9, one of the Viking orbiters and possibly a couple of Soviet orbiters are still whizzing round out there too. With no communications for decades their exact orbits are a matter for speculation.

6
0

MAYHEM in ORBIT: Russian cargo pod spins OUT OF CONTROL

Vulch

There are a couple of extra ATV service modules, currently intended to be used on Orion test flights. The pressurised bits came from the Alenia production line which I think also makes the Cygnus pressurised container. A bodge job ATV might be possible in under a year, but you'd still need an Ariane 5 to launch it and the only way you'd free up one of them would be to pay a commercial payload a very large sum of money to delay...

0
0

SpaceX in MONEY RING shot, no spare juice for tail backdown this time

Vulch

Re: Watched the launch...

It's still not over land. For a geo-sync launch there are two burns, the first one finishes 9 minutes or so after launch and puts everything in a more or less circular orbit, the second is 10 minutes or so later starting just before it crosses the equator to put the payload in the transfer orbit. You'd need to be roughly in Cameroon to stand a chance of seeing it.

3
0

Flying giant octopus menaces New York

Vulch

DDBs?

Shirley if you're measuring height with Double Decker Buses you'd stack them on top of each other rather than bumper to bumper making it 13.2 to 19.8 ddbs?

Hmmm, Flanders and Swann seem to have omitted the height from the statistics in A Transport of Delight...

5
0

KABOOM! Billionaire fingers dud valve in ROCKET WIBBLE PRANG BLAST

Vulch

Re: hes got money and he is going to spend it

What success record did the Grasshopper and DC-X have when they started flying?

None. Which is why when they started flying they did so in the middle of big empty spaces with insufficient fuel or velocity to reach anywhere breakable. There's quite a bit of expensive and fragile kit hanging around the Cape that you don't want to land on top of...

2
1
Vulch

Re: Parachutes

If you dip the whole thing in salt water then you're committed to stripping the whole stage to components and rebuilding from scratch. Not exactly the route to cheap reusability.

12
0

Easy ... easy ... Aw CRAP! SpaceX rocket ALMOST lands on ocean hoverbase

Vulch

Re: Wheeeeeeeeeeeeeeeeeee........

So the longest ISS resident probably holds the record.

Valeri Polyakov on Mir actually, 437.7 days in one stretch.

2
0

HOVER ROCKET space station podule mission LIGHTNING HOLD DRAMA

Vulch

Couple of still pictures on his Twitter feed now with the comment "Looks like Falcon landed fine, but excess lateral velocity caused it to tip over post landing"

Also "All we have right now is low frame rate video (basically pictures). Normal video will be posted when ship returns to port in a few days."

0
0
Vulch

They drain the tanks immediately after an abort when it's an instantaneous launch window. Fuelling starts around 4 hours before a scheduled launch so they'll start refilling in about an hours time (just after 5pm Tuesday) for tonights attempt.

1
0

Bloke hits armadillo AND mother-in-law with single 9mm round

Vulch

Re: 9mm Pistol at 100yds?

The MIL was 100yds (91.44m, 1.8osp, 9.92ddb) away, the range to the Armadillo is not given...

5
0

HOT HOVERSHIP-ON-HOVERSHIP ACTION: SpaceX ready for barge boing

Vulch

Re: SpaceX is seriously cool

Well they're obviously doing something right, with 16 Falcon 9 launches in 4 years so far, and 10 more this year.

10 more scheduled, there's bound to be slippage on some of them unfortunately. On the other hand the two launch abort tests for the crew Dragon and the Falcon Heavy demo flight don't appear to be included in that count.

Lockheed and Boeing are also now talking about their ULA Atlas and Delta replacement heading towards reusability, although also going for the FUD about how many times a stage needs to fly before it's cheaper to reuse than expend. Interestingly they've got a press conference due half an hour before the Falcon launch...

3
0

Streak life: Oz woman flashes boobs at Google Street View car

Vulch

Yay for Canada!

2
0

LOHAN chap serves up 'tenner a week' e-cookbook

Vulch

Just a warning, there's VAT to be added to the £2.99 so £3.59 total for UKians...

2
0

Sir Terry remembered: Dickens' fire, Tolkien's imagination, and the wit of Wodehouse

Vulch

Indeed

https://www.facebook.com/events/923034381060640/

0
1

RIP Sir Terry Pratchett: Discworld author finally gets to meet DEATH

Vulch

Re: Turtles all the way down

> man whose writing desk had 6 monitors on it

When asked in an interview "Why does your desk have six monitors?" he replied "Because I don't have room for eight"

21
0

TITANIC: Nuclear SUBMARINE cruising 'Sea of KRAKENS' may be FOUND ON icy MOON

Vulch

Re: Kiss Me Deadly

That's the reason for the Stirling generator, much more efficient converting the heat to electricity but at the expense of having moving parts which might fail.

0
0

SpaceX HOVER-SHIP landing scuppered by MASSIVE ocean waves

Vulch

If at first you don't succeed...

We may now have to wait until April for the next recovery attempt. There's a launch due on Feb 27th which is a heavy payload so won't have the fuel margin for a recovery attempt, and I believe the same applies to the Turkmensat launch due in late March. Jason 3 on March 31st is going up from Vandenberg which would probably need the "Of Course I Still Love You" to be ready, so it's the Dragon to the ISS currently due up on April 8th for the next try.

1
0

Boffin the boffin and his boffinry pals in double dwarf super-prang alert

Vulch

Re: how did they resist

S'OK, they refered to it as an astrological first to make up for it...

0
0

Elon Musk: Hover rocket? Check. Hover ship? Check. Let's DO THIS

Vulch

Hold which scrubs the launch for tonight. Range tracking issue.

1
0

SO. Which IS more important to humanity: Facebook, or Portugal?

Vulch

Ask again when Facebook starts exporting decent fortified wine...

4
0

Elon Musk: Wanna see a multimillion-dollar rocket EXPLODE? WATCH THIS

Vulch

Wouldn't a small drogue chute make sense

This is what the grid fins are for, with the added benefit over a chute of helping with the steering.

2
0

SpaceX drone hovership ROCKET LANDER BURN: Musk to try again

Vulch

Hmmm...

Wonder if it caught a landing leg on one of the containers at that corner and blow-torched the surrounding area with the engine as it tipped? That could lead to the pieces lying where they are on the deck.

0
0

SpaceX in ROCKET HOVERSHIP PRANG: 'Close – but no cigar,' says Musk

Vulch

Re: A valiant effert none the less.

They've got a pretty good idea of what will need to be checked and replaced from the Grasshopper tests. The first few stages to be recovered will be completely dismantled and inspected to confirm that, and to check what has been affected by the stresses of a full bore flight rather than the relatively gentle up and down of Grasshopper and its successors.

6
0

SpaceX: CATS with FRIKKIN' LASERS to blast off to space station

Vulch

Actually the rest of the first stage is largely Ukrainian.

0
0

Google's first stab at control-free ROBOT car rolls off the line

Vulch

Voiced by...

Suranne Jones? "I may not have always taken you where you wanted to go, but I always took you where you needed to be"

3
0

Purple glistening plasma, you say? Orion plummets back to Earth

Vulch

Re: I'm curious

If you need to slow down enough to enter orbit when you get back to Earth, you have to haul the fuel to do that with you to Mars and back. You also need extra fuel to accelerate that fuel out of Mars orbit to get back, and extra fuel to decelerate both those quantities of fuel into Mars orbit when you get there, and still more to accelerate all three lots of fuel out of Earth orbit and towards mars in the first place.

Much less mass requirement to take your re-entry vehicle along with you, not bother with getting into Earth orbit when you get back, and use a beefy heat shield to re-enter directly.

2
2

El Reg Redesign - leave your comment here.

Vulch

Fixed bars bad

Dump the fixed menu bar or if you won't get rid of it at least give it a permanent hide setting. The only thing it does is make you lose a line or two when you page down and breaks the reading flow as you jog back and forth.

3
0

SPLASHDOWN! Orion lands safely in the Pacific Ocean

Vulch

Re: 'over 50 years after it managed to make human footprints on the Moon. '.....The End.

http://www.spaceadventures.com/experiences/circumlunar-mission/

"If you have to ask how much, you can't afford it"

2
0

Orion: To Mars, the Moon and beyond... but first, a TEST FLIGHT through Van Allen belt

Vulch

Re: Wow.

Going through the belts is really a side issue, what they want to do is give the heat shield a good thrashing and for that the higher you go the faster the re-entry is. For LEO you're going around 17,500mph when you hit atmosphere, coming back from the moon or beyond it's more like 25,000mph.

2
0

I'll be back (and forward): Hollywood's time travel tribulations

Vulch

Re: Futurama

That's Mr "I'm my own grandpa" Fry of course.

3
0

It's space WAR: Comet launches fireballs at space-invading EARTH

Vulch

Re: Information please

Not for a while, best displays seem to be a year or two after perihelion and at the moment the comet is around aphelion. Last perihelion was 1998 so watch the skies 2031-2034ish...

0
0

ESA sends back PRE-LANDING COMET CLOSE-UPS

Vulch

Re: Scale.

http://www.gizmodo.com.au/2014/11/look-at-the-size-of-that-comet-rosetta-is-chasing-compared-to-a-747/

As it says, bits of the comet with a 747 to give an idea of scale.

2
0

Virgin 'spaceship' pilot 'UNLOCKED tailbooms' going through SOUND BARRIER

Vulch

Makes sense from the images. If you look at the picture of the incident, eg on http://www.space-travel.com/reports/Probe_of_US_spaceship_crash_may_take_year_999.html and now treat SS2 as being upside down and backwards you've got the engine still firing at the top and the tail booms deployed either side. The feathered configuration is supposed to hold the nose up during re-entry so the base of the ship is maximising the cross section, deploying while the engine is running is lilely to send you into a very tight loop the loop.

5
0

KRAKKOOOM! Space Station supply mission in PODULE PRANG EXPLOSION CHAOS

Vulch

Re: Why do the play-by-play announces ALWAYS downplay these?

Because the console operators usually only have screenfuls of numbers to look at, all they see is that the information they're getting is very odd or has stopped.

2
1
Vulch

The SpaceX one was a first stage problem. They lost an engine on the way up so the other 8 ran longer, that left everything in slightly the wrong position so they couldn't do the second burn after the Dragon separated to get the Orbcomm secondary payload in the right orbit.

First stage engine problems aren't unusual, but they frequently show up before the rocket has left the ground so everything gets shut down and can be fixed.

0
0
Vulch

Re: Resupply

There was a Progress launch due around ten past seven this morning. They might just have had time to get a few copies of said Newspaper Shaped Object on board.

1
0
Vulch

Re: Russian conspiracy?

Not just the same as, they're actual engines built for the N1 before it was cancelled that have been in storage ever since. Another one exploded on the test stand recently.

8
0

Billionaire's pet DRAGON SPLASHES DOWN off Pacific Coast

Vulch

Re: Probably a question for http://what-if.xkcd.com/

They don't push at all, just move it out and let go. The attitude at release is carefully worked out so the Dragon can fire thrusters without the plumes hitting the station.

3
0

Page:

Forums