An open source, online launcher calculator provided by a small rocket space launch startup, Launcher. Provides an "approximation" of performance for conventional rockets but seemingly a pretty comprehensive at that. The author is Igor Nikishchenko who previously worked at the Yutzhnoye Liquid Propulsion Department, Ukraine, as a Deputy Chief Designer. Comes with good documentation also.
launchercalculator.com
launcherspace.com
![launchercalculator.com](/proxy.php?image=https%3A%2F%2Flaunchercalculator.com%2FLauncher-Calculator-ogimage.png&hash=9d16ef63842bb2f1c79f82898b113986&return_error=1)
Launcher Calculator
An open source orbital launch vehicle (rocket) payload calculator by Launcher
![launchercalculator.com](/proxy.php?image=https%3A%2F%2Flaunchercalculator.com%2Ffavicon.png&hash=6da4fb243e33d2610eb0338f94b0b28c&return_error=1)
![launcherspace.com](/proxy.php?image=https%3A%2F%2Fassets-global.website-files.com%2F6175ee2ca86f1b8d99c3c52d%2F661c253e8715779b3b6b82b3_E-2-Web-OpenGraph.jpg&hash=3df5f0eb59f0441cc6125a93565433d8&return_error=1)
Launcher
Launcher, a Vast company, is developing the E-2 liquid rocket engine, expected to be the world’s most efficient rocket engine for small satellite launch vehicles.
![launcherspace.com](/proxy.php?image=https%3A%2F%2Fassets-global.website-files.com%2F6175ee2ca86f1b8d99c3c52d%2F6180315ee13e6b2368359920_Launcher-Favicon-Black.png&hash=016c3145057d96838ff99fd59b7b8e29&return_error=1)