propulsion

I’m talking from the mid to late 19th century. Anyone have any links?

https://interestingengineering.com/science/boeing-starliners-helium-now-china-missile-miracle Chinese researchers have reportedly made a breakthrough in missile and rocket propulsion inspired by flaws in Boeing’s Starliner spacecraft. They found that helium could enhance efficiency and thrust...

I find the concept quite interresting and given that i didn't find anything here i tought of posting about it. https://www.ycombinator.com/companies/astro-mechanica View: https://youtu.be/Bvk3Mi9Y8hQ?si=4CyoDEIn2rcTZrhO

Hello everyone, I have recently been looking into novel airplane configurations such as the blended wing body, transonic truss-braced wing, and box wing proposed by many aerospace companies like Boeing and NASA. I really love these designs and believe they can be of great benefit to society...

Hi there, I think some of you might have heard about Viktor Schaubergers developments during WWII. For those who don't know the historical facts: On the 20. April 1943 the government director of Gau Oberdonau August Schmöller was meeting Viktor Schauberger and Ziereis, the commander of the KZ...

Legend has it one of the Marquardt SERJ engines still exist in someone's garage?

https://www.flightglobal.com/engines/pandw-to-develop-novel-hydrogen-engine-in-us-government-backed-project/147635.article A P&W project, hydrogen burning, steam injected and intercooled engine envisioned to increase efficiency (single aisles 35%), evade (at least direct) carbon dioxide...

Why were Amis so reluctant to adopt spinners in their radial-engined aircraft while everybody else had them?even supposedly clean designs like the F8F lacked one. Another question is why Amis stuck to the crudish outward opening circumferential cooling air flaps with their radials while many...

Just trying to keep them straight. So we have (pulled from a couple different articles recently posted): 1. AGM-183A - Air-Launched Rapid Response Weapon (ARRW). "The ARRW, like many of the emerging threats, is an air-launched, rocket-boosted unpowered hypersonic glider. To be developed under...

https://www.flightglobal.com/news/articles/rolls-royce-ultrafan-could-spark-patent-complaint-p-437769/

In the introductory notes to 'Prelude to Space' Arthur C. Clarke stated that he based the propulsion system for his spacecraft on a real project, a nuclear ramjet engine being worked on by Rolls-Royce, which he referred to as the "Rolls-Royce Dragon". I have no idea if it was a real project or...

One of the more interesting ways to provide power for an extended lunar stay: The Hypergolic Reciprocating Engine Electrical Power System and its application to the Lunar Excursion Module. http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19700026425.pdf

Marquardt Composite or Combined Cycle Engine/propulsion System reports on NTRS. Includes SERJ. http://ntrs.larc.nasa.gov/search.jsp?N=0&Ntk=Title&Ntx=mode%20matchall&Ntt=%22A%20study%20of%20composite%20propulsion%20systems%20for%20advanced%20launch%20vehicle%20applications%22

Hi all I've done quite a bit of searching on the net, but cannot seem to find details on all the Avon series engines with physical characteristics and timelines. Any pointers would be much appreciated. On this topic, I've seen the Mirage III originally touted for Australia was fitted with an...