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Climb & Descent Performance

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Estimate steady climb rate, ideal still-air glide reach, and constant-rate time to climb from transparent excess-power and glide-ratio relationships.

Climb Segment

Glide Segment

L/D

Time To Climb

Rate of Climb

9.33 m/s

1837 ft/min · 7.66 deg

Climb Angle

7.66 deg

Excess thrust 4000 N

Glide Distance

10.00 km

10000 m · 5.71 deg

Sink Rate

3.98 m/s

783 ft/min · 5.71 deg

Constant-Rate Time To Climb

10.00 min

600 seconds

Flight-path geometry

Climb and glide use different reference distances, so each path is shown on its own axis.

Climb path

endpoint 41.62 km, 3000 m

Rate of climb
9.33 m/s · 1837 ft/min
Climb angle
7.66 deg

Glide path

touchdown 10.00 km from start

Sink rate
3.98 m/s · 783 ft/min
Glide angle
5.71 deg

Rate of climb sensitivity

Current speed 70.0 m/s

Open Source and Easy to Use Elsewhere

This tool is open source and the underlying logic is fully transparent. You can inspect the code, understand the calculations, and contribute improvements. If you want to use the tool in your own website, course page, or learning platform, you can also embed it directly and start from a ready-made iframe setup for this exact tool.

Open source: review the implementation and see how the results are produced.

Embeddable: preview this tool, copy the iframe, and use it in your own site or LMS.