Delta II Onboard Cam

[Ondelendo]

I am very happy to see the vidoe Delta II Onboard Cam from you, hopefully the others also are happy for You

[bebeheuy]

I Love The Video Delta II Onboard Cam It Can Increase My Knowledge

[willamricard]

Nice Video Delta II Onboard Cam That You Share , So Very Nice Thanks You

[imegatrone]

I Really Like The Video Delta II Onboard Cam From Your

[bundawartini]

Your Video Delta II Onboard Cam Is Very Useful Sharing

[KASPLARFO]

IGNITION 2:35

[r1casill]

this is just awesome....almost looks unreal from 07:07 on!!! AWESOME!!!

[ApolloWasReal]

@jonalululy I doubt it. Smaller rockets can be pressure fed but an engine this size requires turbopumps. In theory the turbopump speed could be changed but bad things sometimes happen to engines when you do this; eg the Apollo LM descent engine could not run between 65% and 100% thrust because of excessive nozzle erosion. So the thrust was kept at 100% until guidance called for less than 65% and then it dropped in a big step.

I suspect Delta thrust is controlled with SRB grain shaping.

[ApolloWasReal]

You can build SRBs for almost any thrust vs time curve with the right mandril shape when pouring the propellant. No mandril means the propellant burns from the bottom up with low, constant thrust. A cylindrical mandril gives a rising thrust curve as the burning surface area increases. Star-shaped mandrils are common - a lot of thrust at liftoff, then lower sustained thrust as the points burn down to a cylinder. And so on.

[ApolloWasReal]

@jonalululy There is absolutely NO active control over solid rocket thrusts once they're lit. But they're constructed to follow a desired thrust-vs-time curve. E.g. the shuttle SRBs reduce thrust near max-Q and then increase again. The expanding plume is due to the rapidly decreasing air pressure as the rocket climbs through the atmosphere.

I don't know for sure, but I don't think the Delta 1st stage main engine can be throttled.

[ti994apc]

The only problem with this rocket is someone chose to use solid rocket boosters. I would have been better if they upgraded the second stage or added a third stage. Solid rocket engines have a history of going wrong when you least expect it. India's space program just took a major hit because of a solid.

[ApolloWasReal]

@ti994apc Solid rockets aren't that unreliable, and they have some important advantages. First, they're cheaper. Most of all they have a very high thrust-to-weight ratio. This is very important at launch when you're flying mostly vertical and overcoming gravity loss. Later on, specific impulse becomes more important than maximum thrust so many upper stages use high performance liquid fuels like hydrogen. Hypergols are also popular when restartability is required, as it often is.

[JERRYinCHS]

I'll resist the urge to make "daft" comments. Never reach conclusions from just one (sometimes just a few) of your search results. This video is a Delta II rocket used to launch satellites into orbit. It's a NASA operation. Your search result was Delta Air Lines, flt # 2, B767-400 service which flies London-NYC's JFK airport. You may fly Delta 2 if you can buy the ticket, but I doubt you'd get to ride on a Delta II!

[spazzaaaron]

i may be daft, but i googled delta 2, and it is currently departing from heathrow airport (london) to JFK (america), what exactly is this used for? :)

[ryan0157]

lol this vid was put up the next day when they got the camra back

[DonMasakoni]

small world

[13234656989]

at 3:31 you can see a heart in the middle top of the screen

[istartedi]

cut everything before 2:30 and repost please

[ftucyk]

NASA don't need a camera back!

[usfansw]

How did they get they camera back? Or was it transmitted video? Good stuff!

[ApolloWasReal]

If this was the Delta flight from VAFB on December 14, 2006, this would have been the launch of the infamous USA 193, 2006-057A, catalog 29651. What's unusual about this launch was the prograde 58.5 degree inclination; most VAFB launches are into sunsynchronous orbits.

This satellite may have been classified, but orbital elements were readily available thanks to a team of volunteer observers that makes a hobby of tracking classified satellites.

[ApolloWasReal]

@ApolloWasReal Ah, that would explain the rather large maneuvers done by the first stage. Many Vandenberg launches execute "doglegs" to avoid offshore oil platforms, but it looks like this one first flew to the west to get away from land, then made a BIG swing to the southeast after dumping its airlit solids, presumably to put it on the right azimuth for its 58 deg orbit, which is low for Vandenberg. That has to reduce launcher performance significantly.

[Yoetah]

Incredible, imagine being there...I could do w/out riding the rocket fuel tho

[FractAlkemist]

One of the BEST rocketcams I've seen. Could have chopped the first 2 minutes.

[BaseStationZero]

Waiting 2.5 minutes for launch? Damn.

[enoughzenough]

Impressive.

[johnayerger13]

aww no audio, that always makes it seem fast-paced. either way its the BOMB!

[canadaflying123]

Wow. It doesn't seem like the Delta 2 needs that much energy to seperate the rocket boosters. The space shuttle looks like it blows up everytime they seperate the SRB's but this one just falls off.

[eamt10]

i would say that on the space shuttle that blast you see is a boost or small propulsor pushing the booster away from the space shuttle, in the delta, the can just fall off in any direction.

PS: that is not true information, it is what i think

[ApolloWasReal]

The shuttle SRBs have small rocket engines that push them away from the orbiter and ET. The Delta SRBs are much smaller and lighter so they simply use springs. The Delta SRBs are also not recovered.

[lovemekyp]

omg. i got chills while i was watching this video. that was beautiful!! i swear i even got teary eyed!!! beautiful simply beautiful!!

[nickrock6]

7:15 looks kind of animated for some reason

[sigmasquadleader]

All the lighting is pure in space.

It resembles animations because animations don't have very much light filtration.

[blablubb12345]

Anyone remember the spy satelite that was shot down recently? This is the launch of exactly that satelite, USA 193, from Vandenberg AFB.

[Wcoltd]

What was that contracting and expanding blob towards the end (7:22)? looked like a liquid of some sort.

[n6vmo]

Those were both halves of the payload fairing after being jettisoned. They are the two pieces of the nose cone after they are split apart by tiny explosives.

[Cokeacolaproductions]

This isnt the Delta II. The Delta II exploded after take-off

[xylicon]

Negative the last explosion of a delta II was back in like 1988, hundreds of launched since then, this is one of em.

This is a Delta II

[ugowar]

The last Delta II explosion was actually in 1997 when a SRB let go spectacularly seconds after liftoff. That's the one where PAO infamously said "we have had an anomaly..."

[wessendorf15]

@Cokeacolaproductions lol u really dont kno much about rockets do you buddy.

[michchap]

Thank you for sharing this video. It was a lot of fun to watch. The staging sequence at 7:09 was very cool.

[DTHRocket]

A "Z" motor would be up to 167,772,160 n-seconds of total impulse, or 37,701,609 lb-seconds. I'm guessing these are even bigger than that. Way cool.

[DTHRocket]

5/5 stars. By model rocket motor total impulse letter ranking those strap on boosters must be z motors.

[DTHRocket]

Ignition is at 2:38. No point in waiting around.

[filipefilipefilipe]

Yeah!!! sonic boom at 3:17... seeeeeeeeeeeeeet!!!

[filipefilipefilipe]

at 3:44, auxiliary oxigen tanks are on... at 4:50, totally out of atmosphere. take a look of the at the fuel beeing burned! like a little explosions... AWESOME!!!

[ApolloWasReal]

@filipefilipefilipe No, at 3:44 you see ignition of the air-lit solids. This Delta has 9 SRBs, of which only 6 are lit at launch. They burn for 60 sec, then the other 3 are lit. Normally the first 6 are dumped right away, but they're often held for a while on VAFB launches to avoid some offshore oil platforms. It isn't really "out of the atmosphere" until 2nd stage flight when the fairing is jettisoned. There's no point in keeping it any longer than necessary.



[azzyo9]

is this a video game?

[larry40m]

That was awsome!

[n6vmo]

Cool...it goes supersonic at 3:17.

[tdbf2142]

Cool, my dad works at SLC-2W there, 12 years of Delta service!

[pmokadakeisuke]

Thats not real! Thats all CGI!!

(just a joke making fun of those who believe the moonlanding was faked... Oh, And I know this is not a moon rocket)

[chocolateadonis1987]

I was there for this. .Its so tight

[lrshero1]

Look at the green on flames edge at takeoff...

[lrshero1]

OMG,HOLD ON!!!!

[novawarrior1]

wasnt delta 2 the rocket that exploded in the air?

[xylicon]

It has exploded before but I believe its only had 2 failures since its maiden flight in 1989.

132 successful launches out of 134, thank you wikipedia.

[Neoli2300]

@novawarrior1 the delta II is a rocket family. Its like a boeing 747 so to speak, two have exploded but another ~135 have gone on to get to orbit successfully

[mreverting]

This is the launch which carried the satellite that will re-enter or be shot down in early March 2008.

[roundthebigworld]

Doggie015, The escape speed is 11.8 Km/s not 7.4 ,with this speed you wouldent even reach half way through!!!!!!!!!!!!!!

[oPYROo]

7.4 km/s is how fast you go to get in orbit

[insult0master]

No, he's right, 11.8 Km/s

[drube]

11,8 km/s is the speed you need to get out of earths gravity.

To reach an orbit around the earth only 7,4km/s are needed.

[lrshero1]

Atmosphere?

[biok2006]

i can see this all days.. is my dream

[Travellerdream]

Chris, about 60 miles away ground.Cool video!

[attickstars101]

UFO's 10:22!!!

[ChrisPlugged]

Can anyone tell me approx how far out of the atmosphere a shuttle needs to be before it is pulled in by gravity?

[g5f4d9h230a]

it doesn't really matter how far out the shuttle is but how fast the shuttle is going and what the escape speed is.

[doggie015]

A space shuttle has to be at least 200 Kilometers up and moving at about 7.4 Kilometers per SECOND

[ooohyeahh]

Awesome!

[techdeck321]

what spacecraft is that

[Michaud27]

Delta II rocket I believe

[haiderodes]

I live in Las Vegas. Sometimes when they launch rockets out of Vanderberg we can see the exaust trail of the rockets. As darkness falls, the sunlight over the horizon picks up the trail leaving a wierd glowing streak or cloud in the western sky. We don't see much of them now as when i was a kid (in the 80s to early 90's.

[knaughtynitefox]

What are you talking About.. This is VANDENBURG in Lompoc, California. VERY Far from Las Vegas haha.. What the hell is VanDERBURG... a base in nevada?

[xylicon]

He said he can see the exhaust trail in Las Vegas, which is possible, I've seen it from great distances too.

[knaughtynitefox]

haha of course im not saying you cant see them from there.. im just wondering if this person is getting the base confused? or perhaps something else? lol

[wmh2006]

It's Just too bad that they don't do this during the recent Delta 2 Launch

[Rocketmechanic]

If you notice the solids burn out and are not released right away. This is to avoid hitting the off shore oil rigs and Catalina Island south of VAFB. At the cape they are released shortly after burnout.

[AslanLionheart]

unbelievable...its a video like that which makes you realize how small we truely are.

[patriotik]

There IS a SLC-17, at the Cape. This, however was at Vandenberg AFB SLC-2W. You wanna tell me there's no fixed pads? I've got news for you bro, I've spent many days of the last year working at them :) This was taken from an Ecliptic Enterprises RocketCam system. Good footage, Xylicon.

[michaeldim]

lol. That'd be awesome though.

[JLangevin]

Ive just spent 3 weeks at Vandenberg AFB for work, and based on the location, would be SLC 2. Whoever said there are no perminent Launch Pads are insane...

[jberlotti]

This is very much real out of Vandenberg. Since I worked the day it went up and watched it I can say its not fake. Sweet view too. LoL I can almost see myself down there as it went up.

[JaguarCat2]

Nice view. Why does the video end shortly after ignition of the second stage: Loss of signal or just because nothing "interesting" happens any more?

[n6vmo]

Two reseans:

1. Classified payload.

2. Too much information from camera.

An educated foe could calculate the final orbit and determine how the spacecraft could be used by calulating the second stage burn time. Although the payload could have had a manuvering package of its own to enable it to reposition after 2nd stage separation.

Shutting off the camera after faring separation helps hide its location and final orbit.

[n6vmo]

Two reseans:

1. Classified payload.

2. Too much information from camera.

An educated foe could calculate the final orbit and determine how the spacecraft could be used by calulating the second stage burn time. Although the payload could have had a manuvering package of its own to enable it to reposition after 2nd stage separation.

Shutting off the camera after faring separation helps hide its location and final orbit.

[ApolloWasReal]

@n6vmo Not that it matters - Ted Molczan's group always quickly finds these things so they can publish their own orbital elements. Classifying the orbit of a satellite only draws attention to it. Many of these things are quite large and very visible; I've used some of Ted's elements and they're usually right on.

[jonburrows]

You should've left the dumbass's comments up, they're always fun to read.

[cngp71]

Sweet. Which SLC was that from?

[nebfer]

IIRC it's a Delta II thy are launched from SLC 17.

[cngp71]

Except that the title and tag both indicate Vandenberg not the Cape. The runway is VAFB North. I dont recall any permanent launch structure there. But then again, I dont recall a view like that. ;)

[xylicon]

There is no SLC 17

[nebfer]

Yes there is it's just on the other side of the country... (I thought the video was taken at the cape...) but it seems as it was launched over at Vandenberg, which would be SLC 2. (cape side thy are launched from SLC 17.)

[jord83]

wow very impressive! never seen in that way

[xylicon]

I removed motorbreath22's dumass comments, hes obviously too dumb to realize that the other Delta II video on my list if of that same launch. He should try googling "rocketcam" and maybe he'll shutup

[Ghostkol]

Fake huh? Duded you don't know what you are saying. * Rollseyes*

[antdude]

Need evidences, dude.