As far as I can understand from the webcast, the launch has been delayed for tomorrow.
Quote from: Svetoslav on 06/27/2014 11:25 amAs far as I can understand from the webcast, the launch has been delayed for tomorrow.Ah, thanks. Let's see if it can be confirmed!
Start delayed for tomorrow - this is the only official information.Personel asked for time to analyse cause of the abort, Putin personally approved and told them to take their time to ensure launch success rather than rush it.
Angara is Roskosmos.Why would Obama care about a private launch like FH? First flight of a government vehicle like SLS, maybe.
Quote from: Moskit on 06/27/2014 11:28 amStart delayed for tomorrow - this is the only official information.Personel asked for time to analyse cause of the abort, Putin personally approved and told them to take their time to ensure launch success rather than rush it.I somehow has the envision of Obama sitting in the situation room receiving reports from Hawthrone in the final minutes before the flight of FH......
According to a reliable source on the Novosti Kosmonavtiki web forum, a leaky valve on the rocket had to be replaced before the next launch attempt.
Quote from: asmi on 06/26/2014 09:58 pmThere are none - it will employ aerodynamic control surfaces for roll control.aka fins
There are none - it will employ aerodynamic control surfaces for roll control.
Quote from: fregate on 06/27/2014 12:38 amQuote from: asmi on 06/26/2014 09:58 pmThere are none - it will employ aerodynamic control surfaces for roll control.aka fins So was it eliminated from the design? And how will Angara-A5 work?
Quote from: Stan Black on 06/27/2014 04:31 pmQuote from: fregate on 06/27/2014 12:38 amQuote from: asmi on 06/26/2014 09:58 pmThere are none - it will employ aerodynamic control surfaces for roll control.aka fins So was it eliminated from the design? And how will Angara-A5 work?AIUI, since the RD-191 has a single nozzle and no other exhaust (it's SC after all), they use the fins to avoid spin. And I believe they have some RCS, too. On the heavier versions, they have multiple cores and thus nozzles that they can TVC to correct any deviation and/or rotation. Thus, fins are unnecessary.
Quote from: baldusi on 06/27/2014 04:44 pmQuote from: Stan Black on 06/27/2014 04:31 pmQuote from: fregate on 06/27/2014 12:38 amQuote from: asmi on 06/26/2014 09:58 pmThere are none - it will employ aerodynamic control surfaces for roll control.aka fins So was it eliminated from the design? And how will Angara-A5 work?AIUI, since the RD-191 has a single nozzle and no other exhaust (it's SC after all), they use the fins to avoid spin. And I believe they have some RCS, too. On the heavier versions, they have multiple cores and thus nozzles that they can TVC to correct any deviation and/or rotation. Thus, fins are unnecessary.Yes, my notes say that roll control is via. thruster once out of the atmosphere. Those fins are only going to work for less than half of the burn time. Also, Angara 5 will burn its boosters out and jettison them before the core (those were the original plans any way), so it too will need roll control. - Ed Kyle
Quote from: Svetoslav on 06/27/2014 11:12 amSome things I think I understood : A new (unique) launch pad has been developed for Angara, the same pad can be used for all versions of the rocket - Light, Medium, Heavy.Unique, like the Delta IV pads at both the Cape and Vandenberg?
Some things I think I understood : A new (unique) launch pad has been developed for Angara, the same pad can be used for all versions of the rocket - Light, Medium, Heavy.
Quote from: Galactic Penguin SST on 06/27/2014 11:53 amQuote from: Moskit on 06/27/2014 11:28 amStart delayed for tomorrow - this is the only official information.Personel asked for time to analyse cause of the abort, Putin personally approved and told them to take their time to ensure launch success rather than rush it.I somehow has the envision of Obama sitting in the situation room receiving reports from Hawthrone in the final minutes before the flight of FH...... Putin looks lonely in that photo...