Anik reports that this Progress will fly on Soyuz-2.1a. That LV provides about 400 extra kg of payload - so how will this be accommodated on Progress? Perhaps the Rodnik tanks, the prop tanks and the cargo compartment will all simply be maxed out. In practice, that would be:1300 kg dry cargo 420 kg water in Rodnik tanks 880 kg mid-section prop for ISS 250 kg PAO prop for use by ISSThat totals to 2850 kg, within 100 kg of the max capability of Soyuz-2.1a from Baikonur. A little more dry cargo could probably be stuffed into the cargo compartment.
Quote from: Danderman on 05/02/2012 04:11 pmAnik reports that this Progress will fly on Soyuz-2.1a. That LV provides about 400 extra kg of payload - so how will this be accommodated on Progress? Perhaps the Rodnik tanks, the prop tanks and the cargo compartment will all simply be maxed out. In practice, that would be:1300 kg dry cargo 420 kg water in Rodnik tanks 880 kg mid-section prop for ISS 250 kg PAO prop for use by ISSThat totals to 2850 kg, within 100 kg of the max capability of Soyuz-2.1a from Baikonur. A little more dry cargo could probably be stuffed into the cargo compartment.Additional gas tanks like M-52, M-53, M-54 and M-55?http://forum.nasaspaceflight.com/index.php?topic=16803.msg494268#msg494268Rodnik in cargo compartment like Progress-M1?
Anik reports that this Progress will fly on Soyuz-2.1a. That LV provides about 400 extra kg of payload - so how will this be accommodated on Progress? Perhaps the Rodnik tanks, the prop tanks and the cargo compartment will all simply be maxed out. In practice, that would be:
Quote from: Danderman on 05/02/2012 04:11 pmAnik reports that this Progress will fly on Soyuz-2.1a. That LV provides about 400 extra kg of payload - so how will this be accommodated on Progress? Perhaps the Rodnik tanks, the prop tanks and the cargo compartment will all simply be maxed out. In practice, that would be:anytime table for this?
Introduction of Soyuz-2 rocket for Progress launches does not mean that mass of cargoes will be increased. It means only that Roskosmos and TsSKB-Progress wants to replace Soyuz-U and Soyuz-FG rockets, because systems for them are producing in Ukraine and they are very old. RSC Energia categorically against introduction of Soyuz-2, because this rocket costs much money and does not give advantages for Progress and Soyuz launches.
But adding 400kg would mean a redesign of Progress M-M, because in the present configuration the is no available space for more cargo.At first, the use of Soyuz-2 was needed for Progress M1. But since this spacecraft is no longer in use, there is no more need for Soyuz-2.
But adding 400kg would mean a redesign of Progress M-M, because in the present configuration the is no available space for more cargo.
Could the Soyuz-2 not deliver the Progress to a higher orbit?
Quote from: Stan Black on 06/29/2012 09:47 pmCould the Soyuz-2 not deliver the Progress to a higher orbit?Drop zones.
Quote from: Danderman on 06/30/2012 05:01 amQuote from: Stan Black on 06/29/2012 09:47 pmCould the Soyuz-2 not deliver the Progress to a higher orbit?Drop zones.The same for Progress M-UM?http://forum.nasaspaceflight.com/index.php?topic=23673.msg675832#msg675832
Q This October we are expecting a maiden flight of cargo transportation vehicle Progress on top of Soyuz-2.1A LV. How many of those LVs is requested by Roscosmos for such missions?A Currently we got a contract for manufacturing of 4 Soyuz-2.1A LV for cargo transportation vehicle Progress supply missions. We are planning to launch first vehicle till this year fall, 2 - next year, and one in 2016.Q How many Progress vehicles would be launched on Soyuz-2.1A before this LV might be certified as a man-rated? When are you planning a maiden flight of manned Soyuz on Soyuz 2.1A?A At present time the head think tank of [Russian aerospace] industry [TsNIIMash] is busy preparing program of qualifying flights and determining minimal number of launches required to confirm reliability of LV before commencing manned launches. Our formal proposals are submitted to TsNIIMash. We are proposing to perform 3 qualifying flights with Progress cargo vehicle and after that to launch a manned Soyuz on Soyuz 2.1 (fall 2016 or in beginning of 2017).He also mentioned that Centre is NOT planning to use Soyuz 2.1b LV for manned launches of Soyuz-TMA spacecrafts and Progess Cargo transportation vehicles.
He also mentioned that Centre is NOT planning to use Soyuz 2.1b LV for manned launches of Soyuz-TMA spacecrafts and Progess Cargo transportation vehicles