RAIN GUTTER IN AIRCRAFT
What is this line found above the door on many aircraft?
Rain Gutter installed on passenger aircraft are usually fixed above cabin door on fuselage section.
The size of rain gutters are limited due to aerodynamic drag.
Thus, In heavy rain condition rain gutter may filled and overflow over the door area.
To Allow rapid drain of water, Rain gutters usually installed in inclined position.
Aircraft forward door rain gutters inclined downward in forward direction so that all water drain toward nose of the aircraft.
Aircraft aft door rain gutters inclined downward in rear direction so that all water drain toward tail of the aircraft.
Where should rain gutters be placed?
Rain gutters placed in above the the all aircraft doors.
Similar to Rain gutter metal stripe we can also find, Metal stripe at two locations on aircraft.
One on APU access door and other one on wing lower surface near wing tank vent.
What is the purpose of rain gutters?
It’s for the passengers on a rainy day. If this strip would not be diverting the rainwater flowing from the upper fuselage, a curtain of water would soak the passengers upon entering or leaving the aircraft, and the cabin floor.
How do rain gutters work?
Even with Jet-bridges, the door itself might be covered, but since the whole cylindrical fuselage is not.
The rain that falls in the uncovered area at the top of the fuselage would roll down, then going under the jet bridge’s cover. This is to redirect that water that would have gone into the doorway off to the side.
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