- vCommons Home
- Glide Ratio

# Glide Ratio

Not Reviewed

Equation / Last modified by Administrator on 2019/06/28 00:42
`epsilon = `

Tags:

Rating

ID

EmilyB.Glide Ratio

UUID

446d5374-608b-11e6-9770-bc764e2038f2

The **Glide Ratio** calculator computes the glide ratio based on the change in forward distance and the change in altitude.

**INSTRUCTION:** Choose units and enter the following:

- (
**ΔS**) This is the forward distance traveled. - (
**ΔH**) This is the change in altitude.

**Glide Ratio (ε):** The calculator returns the Glide Ratio as a real number.

#### The Math / Science

The **Glide Ratio** is the ratio of distance forward to distance downwards when a glider is flown at a constant speed in still air. The glide ratio varies with air speed, but there is a maximum value which is frequently quoted. Glide ratio usually varies little with vehicle load; a heavier vehicle glides faster, but nearly maintains its glide ratio.

The following formula is used:

**ε = ΔS** /** ΔH**

where:

**ε**= Glide Ratio**ΔS**= distance of forward travel**ΔH**= altitude change in forward travel

#### Aviation Calculators

- Aircraft wind correction angle
- Distances between coordinates
- Time to travel between coordinates
- Glide Ratio
- Speed Needed for Takeoff
- Force of Drag
- Force of Lift

## References

Wikipedia (https://en.wikipedia.org/wiki/Gliding_flight#Glide_ratio)