Skip to the content

Uchusen Rockets宇宙船

Rockets drawn from sourced sizes: line drawings and painted 3D views you drop into a page, take apart and turn round, and a typed model that checks whether a rocket really goes together.

Uchusen is the Japanese word 宇宙船 for spaceship. About the name

Contents

Reference · Rockets, variants, parts and the fit check

rocketSpeedfunction

The relativistic rocket equation: the speed, as a fraction of c, that a rocket with exhaust speed exhaustOfC reaches burning from full down to dry mass.

Import it

import { rocketSpeed } from "@johnmorrisdotca/uchusen-rockets";

Definition

function rocketSpeed(exhaustOfC: number, full: number, dry: number): number

Parameters

NameTypeDescription
exhaustOfCnumber

Exhaust speed as a fraction of the speed of light.

fullnumber

The mass before the burn.

drynumber

The mass after it.

Returns

number

The speed as a fraction of c.

Examples

import { rocketSpeed } from "@johnmorrisdotca/uchusen-rockets";

console.log(rocketSpeed(0.04, 10, 1).toFixed(3));
0.092

What it prints (run when this page was built)

View sourceEdit on GitHubMade from the source of @johnmorrisdotca/uchusen-rockets 0.14.0.