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#40
by
Steven Pietrobon
on 28 Nov, 2015 02:43
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#41
by
antriksh
on 22 Dec, 2015 16:21
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The technology demonstration programme will take place probably around first week of February when a scaled model of reusable vehicle will be flown to space and brought down to the Bay of Bengal,” said an Isro spokesperson.
This year, the space agency completed studies related to the rocket by carrying out various simulations. It also validated the onboard software and conducted a successful test of the solid booster motor (HS9) with Secondary Injection Thrust Vector Control system
Source
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#42
by
Ohsin
on 27 Dec, 2015 23:06
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Delayed again.. A technical snag this time.
Sources said on Sunday that the Reusable Launch Vehicle-Technology Demonstrator (RLV-TD), under development at the Vikram Sarabhai Space Centre (VSSC) here at Thumba, developed a minor leak during a test, forcing the ISRO to postpone the mission
VSSC Director Dr K Sivan said that some of the components had to be re-assembled. "If things go as planned, we can launch the mission in the first week of February. Otherwise, the test will be conducted in the first week of April,"
http://www.newindianexpress.com/states/kerala/ISROs-RLV-TD-Project-Likely-to-be-Delayed/2015/12/28/article3199197.ece
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#43
by
Ohsin
on 29 Dec, 2015 04:32
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He said here on Monday that the project was still in the experimental stage and the demonstration vehicle will have a range of 100 km, though eventually it will be like a space shuttle. The ISRO uses multi-stage rockets for satellite launch, but the reusable vehicle will be a single-stage rocket to start with. The single-stage rocket will have a solid propellant stored in casing. For a reusable vehicle, the casings have to be re-used or rebuilt and its evolution will hinge on cost benefits, said the ISRO chairman.
http://www.thehindu.com/news/national/karnataka/reusable-launch-vehicle-trial-in-2016-says-isro-chairman/article8039456.ece
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#44
by
antriksh
on 29 Dec, 2015 05:12
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#45
by
Ohsin
on 29 Dec, 2015 05:54
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The single-stage rocket will have a solid propellant stored in casing. For a reusable vehicle, the casings have to be re-used or rebuilt and its evolution will hinge on cost benefits, said the ISRO chairman.
http://www.thehindu.com/news/national/karnataka/reusable-launch-vehicle-trial-in-2016-says-isro-chairman/article8039456.ece
WTF!! solid propellant? rlv-td booster is not meant to be reused.
My reaction was same! It made me think of winged solid booster thing and all(Hell it even looks like those flyback strapon boosters on that paper contraption from DLR). I think he just means that they will attempt to recover the HS9 casing as well.
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#46
by
antriksh
on 29 Dec, 2015 08:20
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The single-stage rocket will have a solid propellant stored in casing. For a reusable vehicle, the casings have to be re-used or rebuilt and its evolution will hinge on cost benefits, said the ISRO chairman.
http://www.thehindu.com/news/national/karnataka/reusable-launch-vehicle-trial-in-2016-says-isro-chairman/article8039456.ece
WTF!! solid propellant? rlv-td booster is not meant to be reused.
My reaction was same! It made me think of winged solid booster thing and all(Hell it even looks like those flyback strapon boosters on that paper contraption from DLR). I think he just means that they will attempt to recover the HS9 casing as well.
hehe..this news gives some screwed up description of RLV that I heard for the first time. Whatever they do, just pray they do the experiment by april. I am hoping for two HEX experiments in this year. I hope that single HEX achieves all the objectives for them, so they can move on the LEX.
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#47
by
vineethgk
on 29 Dec, 2015 15:36
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I'm not really sure if it is a good idea for ISRO to give this test much publicity. I know of people who are under the impression that ISRO has mastered technology for reusable spaceships and are in the threshold of operationalizing it through this test, especially so due to the publicity of SpaceX's recent success. Many are not aware that this test is merely the first step in a long development program.
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#48
by
kanaka
on 30 Dec, 2015 00:53
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I'm not really sure if it is a good idea for ISRO to give this test much publicity. I know of people who are under the impression that ISRO has mastered technology for reusable spaceships and are in the threshold of operationalizing it through this test, especially so due to the publicity of SpaceX's recent success. Many are not aware that this test is merely the first step in a long development program.
I felt that followers are more enthusiastic and active in publicizing, publishing and discussing about the activities @ ISRO more than ISRO officials themselves
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#49
by
Prober
on 01 Jan, 2016 19:56
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#50
by
kanaka
on 02 Jan, 2016 02:06
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good looking craft
Potential delay for first test flight of India's spaceplane demonstrator
http://www.gizmag.com/india-spaceplane-launch-delay/41087/
Delays should not discourage or impact the mission. Such delays can be ignored as long as the progress is good towards realizing the mission purpose. Request ISRO not to disclose the schedules in a hurry that is causing stress and pressure on themselves.
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#51
by
Ohsin
on 02 Jan, 2016 02:10
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Gizmag...
Avatar...
https://xkcd.com/978/Does anyone have dimensions on TDV? All I have is 1m diameter on fuselage and may be ~6.5m length.
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#52
by
TrevorMonty
on 02 Jan, 2016 02:49
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The Avatar is SSTO, capable of 1000kg. Has some radical technology ie ramjet + scramjet + rocket, will launch with LH and collect LOX inflight for final stage of flight. If it works they will scale it up. But even 1000kg at $500/kg would open up space and could be used to supply fuel depots.
ISRO are nothing if not ambitious, pull this off and they stand to become a leading space faring nation.
As side note. The concept of extracting LOX from atmosphere during flight could also be applied to Reaction engines Skylon.
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#53
by
Ohsin
on 02 Jan, 2016 03:12
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The Avatar is SSTO, capable of 1000kg. Has some radical technology ie ramjet + scramjet + rocket, will launch with LH and collect LOX inflight for final stage of flight. If it works they will scale it up. But even 1000kg at $500/kg would open up space and could be used to supply fuel depots.
ISRO are nothing if not ambitious, pull this off and they stand to become a leading space faring nation.
As side note. The concept of extracting LOX from atmosphere during flight could also be applied to Reaction engines Skylon.
You will not find ISRO ever mentioning it. Not their project. People wrongly call TSTO and RLV-TD as Avatar, wiki being the culprit.
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#54
by
sportyfailure
on 13 Jan, 2016 05:09
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RLV-TD's solid booster is called as RLV-SB as per the dev team's publication A. Parhi et al. / Aerospace Science and Technology 43 (2015)
The booster has around 9200 kg of propellant with a max.thrust of 320 kN.
And this booster has a SITVC for attitude control. But this SITVC uses a toroidal tank around the nozzle instead of side mounted tanks seen in PSLV. See attached image.
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#55
by
chota
on 20 Jan, 2016 20:04
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RLV-TD's solid booster is called as RLV-SB as per the dev team's publication A. Parhi et al. / Aerospace Science and Technology 43 (2015)
The booster has around 9200 kg of propellant with a max.thrust of 320 kN.
And this booster has a SITVC for attitude control. But this SITVC uses a toroidal tank around the nozzle instead of side mounted tanks seen in PSLV. See attached image.
minor leak during a testLeak in a solid booster based RLV-TD? From that SITVC tank?
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#56
by
Jester
on 07 Feb, 2016 00:05
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So, 1st of week of Feb. has passed, so I assume next slot will be April, however it would be nice to see an updated image..
It this still the best there is out there?
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#57
by
input~2
on 07 Feb, 2016 07:26
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So, 1st of week of Feb. has passed, so I assume next slot will be April.
Please have a look at the title of this thread
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#58
by
russianhalo117
on 07 Feb, 2016 15:51
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So, 1st of week of Feb. has passed, so I assume next slot will be April, however it would be nice to see an updated image..
It this still the best there is out there?
image wise yes, i haven't seen anything newer released.
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#59
by
Ohsin
on 12 Mar, 2016 11:01
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