Revision as of 02:25, 20 March 2007

The page was started as a subpage of Scramjet AKAF 07:19, 24 April 2006 (UTC)[reply]

User:VogonFord I added a section on the X-15-A2's dummy scramjet. I was not logged in at the time, though.

Russian discrepencies

"First working scramjet "Holod" in world flies on 28 November 1998 reaching speed 5.8M. But collapse of Soviet Union stops funding this research and development of next generation of Russian scramjets is still suspended."

If it was in 98' how could the fall of CCSI stop the funding of a nation that fell 7 years prior? Uopmegabytes 11:01, 17 March 2007 (UTC)[reply]

In fact most of those tests were of a high speed ramjet (ie subsonic combustion). The one final test which should have had supersonic combustion was not completely successful, and had an engine unstart. After some time it restarted and flew with stable combustion. Analyses of the data are somewhat unclear, with the official CIAM position being that supersonic combustion was achieved, and all publications which I've read saying that the data is not clearly showing supersonic combustion. In fact the program was probably defunded because most of the money was coming from France and the USA, and in the absence of a clear win, they preferred to fund internal projects. Just as a side note: "Holod" referrs to the flying laboratory system (Fuel/telemetry/control) and not to the engine itself. As far as I understand, the tests of the holod system itself were a resounding success and it's available for anyone who wants to do supersonic flight testing. AKAF 08:51, 19 March 2007 (UTC)[reply]

I too found that NASA was funding and supporting the Russian tests and that Australia claims to have the first supersonic combustion tested engines. Without international help Russia would have had no testing at all. I think it might be appropriate for the article to reflect the lack of Russian success and independent research they have contributed to scramjets. Uopmegabytes 02:25, 20 March 2007 (UTC)[reply]

Revision as of 08:51, 19 March 2007 edit AKAF (talk \| contribs) Extended confirmed users 872 edits →Russian discrepencies ← Previous edit		Revision as of 02:25, 20 March 2007 edit undo Uopmegabytes (talk \| contribs) 28 edits →Russian discrepencies Next edit →
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	:In fact most of those tests were of a high speed ramjet (ie subsonic combustion). The one final test which should have had supersonic combustion was not completely successful, and had an engine unstart. After some time it restarted and flew with stable combustion. Analyses of the data are somewhat unclear, with the official CIAM position being that supersonic combustion was achieved, and all publications which I've read saying that the data is not clearly showing supersonic combustion. In fact the program was probably defunded because most of the money was coming from France and the USA, and in the absence of a clear win, they preferred to fund internal projects. Just as a side note: "Holod" referrs to the flying laboratory system (Fuel/telemetry/control) and not to the engine itself. As far as I understand, the tests of the holod system itself were a resounding success and it's available for anyone who wants to do supersonic flight testing. [[User:AKAF\|AKAF]] 08:51, 19 March 2007 (UTC)		:In fact most of those tests were of a high speed ramjet (ie subsonic combustion). The one final test which should have had supersonic combustion was not completely successful, and had an engine unstart. After some time it restarted and flew with stable combustion. Analyses of the data are somewhat unclear, with the official CIAM position being that supersonic combustion was achieved, and all publications which I've read saying that the data is not clearly showing supersonic combustion. In fact the program was probably defunded because most of the money was coming from France and the USA, and in the absence of a clear win, they preferred to fund internal projects. Just as a side note: "Holod" referrs to the flying laboratory system (Fuel/telemetry/control) and not to the engine itself. As far as I understand, the tests of the holod system itself were a resounding success and it's available for anyone who wants to do supersonic flight testing. [[User:AKAF\|AKAF]] 08:51, 19 March 2007 (UTC)

			I too found that NASA was funding and supporting the Russian tests and that Australia claims to have the first supersonic combustion tested engines. Without international help Russia would have had no testing at all. I think it might be appropriate for the article to reflect the lack of Russian success and independent research they have contributed to scramjets. [[User:Uopmegabytes\|Uopmegabytes]] 02:25, 20 March 2007 (UTC)