Jamil Qaisrani’s Post

Ever wondered, why rockets like the #spacex starship and other rockets have these highlighted disks or diamonds in their rocket flames? They are called #shockdiamonds and are a special condition due to #dualism in #fluidmechanics. see the full video here: https://lnkd.in/dXV332yK

I wanna design an inter terra-lunar spacecraft with ion propulsion in the place of wheels on a car and chemical ethanol propulsion on the rear.

Success is one of the possible outcomes, the probability is uncertain but it is above zero. The Starship rocket achieved a world first by having part of it captured upon its return to the launch pad. During its fifth test flight, the lower half of the SpaceX vehicle maneuvered back beside the launch tower, where it was caught by a giant pair of mechanical arms. The rocket is literally, so,so,so,so,so huge in terms of mass!!!! It's mass is over 250 tonns!! i.e.; 250000 KG!! Anyways, this marks as a crucial step in developing a fully reusable and rapidly deployable rockets. and guess what, it's, "A day for the history books."

Using Newton's equation for motion and the Tsiolkovsky equation, you can derive how much propellant is needed to land a rover on Mars using a sky crane.

Do you want a safety briefing….cause that’s how you get a safety briefing

Very important confirmation to prepare next Vega C flight

🚀 Orbital Launch No. 6 of 2025 | 🇺🇲#5 🚀 Blue Origin has unveiled its heavy-lift reusable launch vehicle, New Glenn, powered by 7 BE-4 engines on its first stage and 2 BE-3U engines on its second stage. The inaugural flight carries the prototype satellite of Blue Ring Pathfinder "DarkSky-1", showcasing the vehicle's capabilities in payload delivery. Followed by the Stage separation, the 1st stage re-enters and lands on a barge "Jacklyn", stationed at the Atlantic Ocean. #BlueOrigin #NewGlenn #DarkSky1 #SpaceExploration #USA David Limp

Tweaking the PDRE: The Shchelkin spiral, which had 12 turns and occupied about half the length of the engine tube has now been shortened to 6 turns and close to half the length (there a short straight bit at the back end that starts the spiral just downstream of the injector ports. The 12-turn spiral made it possible to run at 5Hz, but I hadn't appreciated the thrust-reducing effect of the spiral. Overall, adding the spiral made only a small improvement in the highest achievable thrust. So, I'm hoping for an improvement in thrust with a shorter spiral. De-mounting it was easier than expected. That could be due to the distortion in its shape from operation. Some PDRE experimenters have cut a spiral groove inside their PDRE tube, which is probably a better idea. Will try that if possible. So, next week, it should be possible to do the first runs with the shorter spiral. It's a pity that I can't wind it, smoothly, in and out of the engine tube! Another ploy to improve the deflagration-to-detonation transition might be to use a washer-shaped disc inside the engine, instead of a spiral. That's on our agenda, too. The next problem to solve is how to increase the gas-flow rate. It is about to become a thrust-limiting factor. #pdre, #spacefleet, #rocketengine, #spaceflight, #pulsedetonation, #propulsionresearch, #rocketpropulsion

Nature of the business. Failure eventually leads to success.