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Launch TrajectoryAll functions are free

Launch Trajectory

Compares the effects of thrust, staging and programmed turns on flight trajectories.

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Two-dimensional spherical earth model, exponential atmosphere, fixed drag coefficient; turns according to given pitch program. Attitude control, wind and lift are not modeled.

Launch Trajectory: uses and methods

Compares the effects of thrust, staging and programmed turns on flight trajectories.

Applicable scope and calculation boundary

Two-dimensional spherical earth model, exponential atmosphere, fixed drag coefficient; turns according to given pitch program. Attitude control, wind and lift are not modeled.

model and reference method

Variable mass particle dynamics; exponential density model.

model version: 1.0.0. The results are used for scientific research, exploration and teaching, please interpret according to the model conditions.

input parameters

level segment parameters JSON
In order of launch: dry/fuel in kg, thrust in N, isp in s.
payload(kg)
Value range: 1 – 100000
Windward area(m²)
Value range: 0.01 – 100
resistance coefficient
Value range: 0 – 2
combustion end pitch angle(°)
Value range: 0 – 90

How to use

  1. Load the example or enter data that matches the field description.
  2. Confirm units and models, run calculations and check diagnostics.
  3. Export charts, tables or results packages and record model versions.

tools in the same field

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FROM SCIENCE TO PRACTICE

commercial application case

Industry Application · Independent Reproduction Example

launch plan

aerospace engineering team evaluates the impact of mass ratio and thrust on trajectory during the concept phase.

Public industry reference: NASA Glenn · Rocket Equations

NASA Glenn teaching resource explains mass ratio, exhaust velocity, and ideal velocity increment.

View product or organization original information

on this site

  1. Check propulsion parameters
  2. comparison mass ratio
  3. Observe the ideal ballistic trend

Deliverables

simplifies trajectory and energy indicators for magnitude judgment

needs to be checked before landing

simplified model does not have guidance, structural load and launch safety certification capabilities。

case is compiled for public industry purposes, and the reproduction steps are independent examples of this site; it does not mean that the above-mentioned institutions use or endorse this site, nor does it cite customer benefits that have not been publicly verified. The

SEE THE PRINCIPLE IN MOTION

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FOLLOW THE RESEARCH

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catalog compiled on 2026-10-03. Link accessibility does not equate to verification of the latest papers, admissions, or program status; please check the institution's official website for specific research teams and opportunities.

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