Quote from: Astrosurf on 05/06/2014 02:08 ami get that they probably are going to need more nitrogen thats easy to get, I dont know about ablitive, the legs may or may not need ablative they seem to hold up fine, where would ablative go on the first stage? i thought first stage didnt go through atmospheric reentry, since its not going fast enoughAll launch vehicles have to deal with non-trivial aeroheating on ascent, and the use of an ablative TPS is a common way of handling that. Engineered cork materials are one of the preferred options. The nosecones of the Shuttle SRBs were covered in the stuff. Any recoverable first stage will indeed have to deal with aeroheating from reentry, it's just not as extreme as what a vehicle coming in from orbit has to put up with.
i get that they probably are going to need more nitrogen thats easy to get, I dont know about ablitive, the legs may or may not need ablative they seem to hold up fine, where would ablative go on the first stage? i thought first stage didnt go through atmospheric reentry, since its not going fast enough
How is the TEA-TEB mixture delivered to each of the Merlin-1D's?Does each engine have its own reservoir or is it piped-in from a central tank located somewhere else?If the former, then at what point do they fill each engine's storage container? Before rollout or on the pad?-MG.
Quote from: mgfitter on 06/02/2014 10:20 pmHow is the TEA-TEB mixture delivered to each of the Merlin-1D's?Does each engine have its own reservoir or is it piped-in from a central tank located somewhere else?If the former, then at what point do they fill each engine's storage container? Before rollout or on the pad?-MG.If you're talking about the first stage Merlin-1D's then the TEA-TEB is delivered via the pad and is not part of the first stage.
Who builds SpaceX's CBMs?
If you're talking about the first stage Merlin-1D's then the TEA-TEB is delivered via the pad and is not part of the first stage.
Why does SpaceX keep attempting controlled landing of first stage as opposed to a parachute like shuttle boosters?
Quote from: strangequark on 05/07/2014 10:07 pmQuote from: Astrosurf on 05/06/2014 02:08 ami get that they probably are going to need more nitrogen thats easy to get, I dont know about ablitive, the legs may or may not need ablative they seem to hold up fine, where would ablative go on the first stage? i thought first stage didnt go through atmospheric reentry, since its not going fast enoughAll launch vehicles have to deal with non-trivial aeroheating on ascent, and the use of an ablative TPS is a common way of handling that. Engineered cork materials are one of the preferred options. The nosecones of the Shuttle SRBs were covered in the stuff. Any recoverable first stage will indeed have to deal with aeroheating from reentry, it's just not as extreme as what a vehicle coming in from orbit has to put up with.I get what you mean wsomething going over mach 1 is gonna get a little heat, Is the heat similar to that of a household oven ? Ive seen High power model rocket launches and whenever they recover the ones that go really fast and high, they show signs of heat shock and allot of the paint is gone I know the heat actually got hot enough in this one launch where it actually melted the go pro casing mid flight
No. (I mean, I can't categorically state that no one at SpaceX has ever brought up the idea, but I've certainly never heard about it.)
I imagine whatever ground support communications exist at pad 39A are hard-wired to NASA's LCC building, which SpaceX isn't going to use. If SpaceX is presumably going to control pad 39A from its center in Port Canaveral, how is that going to happen?
Quote from: DecoLV on 02/21/2015 05:42 pm I imagine whatever ground support communications exist at pad 39A are hard-wired to NASA's LCC building, which SpaceX isn't going to use. If SpaceX is presumably going to control pad 39A from its center in Port Canaveral, how is that going to happen?Just like any rewiring, cut, break, disconnect and add as needed.
Has SpaceX ever shown interest in solid rockets?