- Gravelkit
Gravelkit is a term for a modification which is used on some airplanes to avoidForeign Object Damage , one modification included are to avoid spray of gravel from the nosewheels into the jet- or propellerengines.Example of planes that can be fitted with this upgrade is earlyB737 which was used inAlaska .External links
* [http://www.b737.org.uk/unpavedstripkit.htm About the gravel kit on Boeing 737-200]
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