Talk:Hybrid-propellant rocket

message: Holy crap, someone decided to be super-wordy when writing this article.  I'll get around to doing a rewrite on the intro eventually. Night Gyr 17:41, 7 April 2006 (UTC)
replies: text: Thanks for the article improvements. More references would be appreciated, esp. to journals, books, and published sources.—Tetracube (talk) 04:51, 23 April 2009 (UTC)

message: The article refers to "Disdvantages compared with APCP solid rockets" but the article never defines what "APCP" means.  What does APCP mean?Betathetapi545 (talk) 10:33, 1 November 2014 (UTC)
replies: text: It stands for ammonium perchlorate composite propellant Kees08 (talk) 23:57, 24 April 2016 (UTC)
thread_title:  "APCP"????? 

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thread_title:  External links modified 

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thread_title:  External links modified (January 2018) 

message: Hello! This is to let editors know that the featured picture :File:3D Printed Hybrid Rocket Fuel Grain.jpg, which is used in this article, has been selected as the English Wikipedia's picture of the day (POTD) for May 31, 2020. A preview of the POTD is displayed below and can be edited at Template:POTD/2020-05-31. Any improvements or maintenance to this article should be made before its scheduled appearance on the Main Page.  If there are any concerns, please place a message at Wikipedia talk:Picture of the day. Thank you! Cwmhiraeth (talk) 09:33, 17 May 2020 (UTC)
thread_title:  [[:File:3D Printed Hybrid Rocket Fuel Grain.jpg]] scheduled for POTD 

message: "Hybrid rockets avoid some of the disadvantages of solid rockets like the dangers of propellant handling, while also avoiding some disadvantages of liquid rockets like their mechanical complexity."
I thought one of the main advantages of a solid rocket is that you just fill it when it is built, and there it stays, always ready for use (until the useful life of the chemical expires), whereas liquid rockets are dangerous and slow  and need complex support systems, since the fuel and oxidizer needs to be stored separately and then pumped into the rocket before launch, which is a hazardous undertaking, especially since the fuels are often highly toxic and unstable. So what is this about solid fuel being more dangerous to handle? You don't HAVE to handle solid fuels, even if they were more toxic than liquid fuels. The only thing I can think is that it refers to the fuel in production, before and while it is put into the rocket. Maybe solid fuel is even more toxic and dangerous than liquid fuel (I guess it's the oxidizers which are the really dangerous part, not the fuel per se) during production, but I don't see why it should be more dangerous after it's built, due to the inherent nature of a solid fuel rocket. So this could be made more clear, since it's confusing to a layperson and potentially misleading as well.
64.223.162.221 (talk) 04:02, 23 November 2020 (UTC)
thread_title:  Handling solid propellants? 

message: On the session of student rockets, there is a long paragraph on UnB and other institutions. Besides the self-aggrandizing tone, therenis blatant self-promotion by having a hyperlink to their linkedin 2804:14C:6588:848B:24F6:9353:607C:DE99 (talk) 00:11, 22 April 2024 (UTC)
thread_title:  Isn't the part about UnB and whatnot pure propaganda?