Found in ISS Status Report of 18th march :QuoteTri-module separation occurred at 6:57am. 16 sec after the separation command, software pitched the PAO instrumentation/propulsion module in the rear to a specific angle (-78.5 deg from reference axis) which, if the PAO would have remained connected to the SA/Descent Module, would have resulted in enough heating on the connecting truss to melt it, thus ensuring separation.Is it a new procedure, or an old one I did't know about ??
Tri-module separation occurred at 6:57am. 16 sec after the separation command, software pitched the PAO instrumentation/propulsion module in the rear to a specific angle (-78.5 deg from reference axis) which, if the PAO would have remained connected to the SA/Descent Module, would have resulted in enough heating on the connecting truss to melt it, thus ensuring separation.
What was the complete official designation of "Soyouz TM"?
As a result of more stringent parameters of loading the engine using synthetic oil, engine 11D511PF should have greater margin of stability with respect to the HF oscillations.From the experience of many years of mass production of engines was detected sensitivity stability margin of the working process in the cells on the mode of the main stage to violations in the manufacture of centrifugal two-component jets (as a rule - to violations in the manufacture of tangential holes in the jets) (see also Engines 14D22, 14D21 ). For this reason, a series of chambers as a result of cold prolivok Water Samples of those who have hydraulic characteristics of the mixing head is in a range. Cameras are selected in such a way mixing heads used in the engine 11D511PF (RD-117PF).By 1996, production of engines for the rocket Soyuz at the Plant Frunze in Samara have decreased significantly, making it impossible to select engines, capable of working on a synthetic fuel.To continue the operation of the rocket Soyuz-U2 "it was necessary to either increase the level of manufacturing technology, or to conduct additional studies to clarify the nature of high-frequency vibrations and make appropriate modifications to the mixing head.
Quote from: Nicolas PILLET on 05/11/2010 09:14 pmWhat was the complete official designation of "Soyouz TM"?11F732A51.
A Soyuz parachute question I have been asked and have no idea about: are the main and reserve/backup parachutes stored in one compartment (with one hatch opening) or two? I have done some searching but can't come up with a clear answer or diagram! The screenshot below from "Soyuz: A Universal Spacecraft" shows only one hatch, but it looks like there is another on the side.
On pictures like these, you can see clearly where is the main parachute compartiment (open) and where is the backup one (closed).http://www.kosmonavtika.com/vaisseaux/soyouz/visite/reels/30/30.html
Quote from: Suzy on 07/07/2012 03:28 amA Soyuz parachute question I have been asked and have no idea about: are the main and reserve/backup parachutes stored in one compartment (with one hatch opening) or two? I have done some searching but can't come up with a clear answer or diagram! The screenshot below from "Soyuz: A Universal Spacecraft" shows only one hatch, but it looks like there is another on the side. Main and backup parachutes are stored in two separate compartments. Each compartment has its own hatch. The left parachute is the main, the right one is the backup.
Quote from: Zero-G on 07/07/2012 12:15 pmQuote from: Suzy on 07/07/2012 03:28 amA Soyuz parachute question I have been asked and have no idea about: are the main and reserve/backup parachutes stored in one compartment (with one hatch opening) or two? I have done some searching but can't come up with a clear answer or diagram! The screenshot below from "Soyuz: A Universal Spacecraft" shows only one hatch, but it looks like there is another on the side. Main and backup parachutes are stored in two separate compartments. Each compartment has its own hatch. The left parachute is the main, the right one is the backup.The original question relates to this image (and plenty of others like it).http://scamme.org/info/soyuz-tma19/pict17.jpgThe main 'chute (and it's drogue and braking 'chute have obviously been deployed, and the cover of the backup 'chute is in place, so what is the apparent packed 'chute still in the parachute compartment?
What is the purpose and function of the blue stick with the handgrip on top, which is installed on the "Kazbek" seats in the Soyuz descent module? (see first two photos)There is one of these blue sticks on every seat, but they don't seem to be linked together. (see last photo I made of one of the Soyuz sims at TsPK)
PTT button
ZG, While youre asking, theres another crucial accessory control (rarely seen) to be aware of: The Manual Descent Controller. (If you know of it just ignore this)http://www.asc-csa.gc.ca/eng/vehicles/soyuz/descent.aspCredit: Originally posted by Chris Hadfield