assalam-o-alaikum
Sir Riaz,
you must be doing something for our exhibition.kindly give us a reply in support of this event, as 16 days are left and we have to do arrangements.
I am in the process of collecting information. This is an 18 year old program and has been through several design cycles and test iterations. Failure seems to be due to loss of control and therefore I am trying out find out more about their actuator design and the gimbal system. The second stage cryogenic engine (RL-10) for Delta IV launch vehicles, on which I worked uses an electromechanical actuators.
Another theory is the failure of the cryogenic stage to ignite. ISRO is yet to put out a meaningful statement; it will take them a while to analyze the telemetry. Ignition system for the final stage is designed for multiple ignitions and is very robust.
Cryogenic engines have high Isp (450) and use low temperature materials (-250 degC) @ 45000 rpm. India has been buying Russian cryogenic engines for their geosynchronous launches; failure puts their GSLV launch vehicle at least three years behind (and not one year as they are claiming). Also the Chandrayaan-2 mission will be forced to use a non-Indian launch vehicle because it weighs at least 75% more than Chandrayaan-1 and cannot be launched using the PSLV.
I will write an article as soon I can deduct a possible meaningful conclusion.
Wa-Alaikumussalam,
Alhamdolillah, Everything is fine. It really has been decades since we talked last time.
I see you are Masha-Allah very active on this network. Its good to see pictures of Salman Qureshi and Quresh Diwan in your group photos. I Worked with Quresh Diwan on the same Nuclear Project WPPPS Unit 2 in Washington State in 1983 and visited his family too.
I had been in contact with Mr. Jawed Saeedi a couple of months back regd my Final Year Project , but there seems to be a change of email address from his end . He hasn't replied since then . Can you help me getting linked up with him again .
I am Industrial & Manufacturing Engineering Graduate of NED UET, batch 2007-08. I want to take some professional+educational knowledge regarding job/study abroad. I am available at m.hassan.aziz@hotmail.com. I will be thankful if you could give some of your precious time to me.
Regards,
Muhammad Hassan Aziz
At 8:04am on September 23, 2013, shamim uddin said…
Dear Riaz
I am NED graduate of 1972-73 batch and I have class fellow in your management panel 1-Arif Gafur 2-Farid Durrani, 3- Idris Khotari...i need their email adress or let them contact me Also can you create NEDIANS 1972-73 Mechanical Group in web site.
Pakistani student enrollment in America's institutions of higher learning rose 16% last year, outpacing the record 12% growth in the number of international students hosted by the country. This putsPakistanamong eight sources in the top 20 countries with the largest increases in US enrollment. India saw the biggest increase at 35%, followed by Ghana 32%, Bangladesh and…
Pakistan's agriculture sector GDP grew at a rate of 5.2% in the October-December 2023 quarter, according to the government figures. This is a rare bright spot in the overall national economy that showed just1% growth during the quarter. Strong performance of the farm sector gives the much needed boost for about …
Riaz Haq's Comments
Comment Wall (30 comments)
Sir Riaz,
you must be doing something for our exhibition.kindly give us a reply in support of this event, as 16 days are left and we have to do arrangements.
Another theory is the failure of the cryogenic stage to ignite. ISRO is yet to put out a meaningful statement; it will take them a while to analyze the telemetry. Ignition system for the final stage is designed for multiple ignitions and is very robust.
Cryogenic engines have high Isp (450) and use low temperature materials (-250 degC) @ 45000 rpm. India has been buying Russian cryogenic engines for their geosynchronous launches; failure puts their GSLV launch vehicle at least three years behind (and not one year as they are claiming). Also the Chandrayaan-2 mission will be forced to use a non-Indian launch vehicle because it weighs at least 75% more than Chandrayaan-1 and cannot be launched using the PSLV.
I will write an article as soon I can deduct a possible meaningful conclusion.
Alhamdolillah, Everything is fine. It really has been decades since we talked last time.
I see you are Masha-Allah very active on this network. Its good to see pictures of Salman Qureshi and Quresh Diwan in your group photos. I Worked with Quresh Diwan on the same Nuclear Project WPPPS Unit 2 in Washington State in 1983 and visited his family too.
Thanks for the response .
I had been in contact with Mr. Jawed Saeedi a couple of months back regd my Final Year Project , but there seems to be a change of email address from his end . He hasn't replied since then . Can you help me getting linked up with him again .
Thanks.
I have dropped them a mail . Lets hope for the best and thanks for the help.
Dear Sir,
I am Industrial & Manufacturing Engineering Graduate of NED UET, batch 2007-08. I want to take some professional+educational knowledge regarding job/study abroad. I am available at m.hassan.aziz@hotmail.com. I will be thankful if you could give some of your precious time to me.
Regards,
Muhammad Hassan Aziz
Dear Riaz
I am NED graduate of 1972-73 batch and I have class fellow in your management panel 1-Arif Gafur 2-Farid Durrani, 3- Idris Khotari...i need their email adress or let them contact me Also can you create NEDIANS 1972-73 Mechanical Group in web site.
Regards..SHAMIM UDDIN, shamimuddinbashir@hotmail.com
Very nice sir. You are working great in blogging.
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Pakistani Student Enrollment in US Universities Hits All Time High
Pakistani student enrollment in America's institutions of higher learning rose 16% last year, outpacing the record 12% growth in the number of international students hosted by the country. This puts Pakistan among eight sources in the top 20 countries with the largest increases in US enrollment. India saw the biggest increase at 35%, followed by Ghana 32%, Bangladesh and…
ContinuePosted by Riaz Haq on April 1, 2024 at 5:00pm
Agriculture, Caste, Religion and Happiness in South Asia
Pakistan's agriculture sector GDP grew at a rate of 5.2% in the October-December 2023 quarter, according to the government figures. This is a rare bright spot in the overall national economy that showed just 1% growth during the quarter. Strong performance of the farm sector gives the much needed boost for about …
ContinuePosted by Riaz Haq on March 29, 2024 at 8:00pm