Spoiler	Length	Width	Height	Full Height	Weight (Pair)
Spoiler 185/10mm	185mm	15/9mm	10mm	31mm	35g
Spoiler 250/10mm	250mm	15/9mm	10mm	31mm	45g
Spoiler 250/16mm	250mm	12/19mm	16mm	46mm	70g
Spoiler 300/16mm	300mm	12/19mm	16mm	46mm	80g
Spoiler 440/16mm	440mm	12/19mm	16mm	46mm	116g

In aeronautics a Spoiler (sometimes called a Lift Dumper) is a device intended to reduce lift in an aircraft. Spoilers are plates on the top surface of a wing which can be extended upward into the airflow and spoil it. By doing so, the spoiler creates a carefully controlled stall over the portion of the wing behind it, greatly reducing the lift of that wing section. Spoilers differ from airbrakes in that airbrakes are designed to increase drag while making little change to lift, while spoilers greatly reduce lift while making only a moderate increase in drag.

Our all Aluminum spoilers are used by gliders to control their rate of descent and thus achieve a controlled landing at a desired spot. An increased rate of descent could also be achieved by lowering the nose of an aircraft, but this would result in an excessive landing speed. However spoilers enable the approach to be made at a safe speed for landing.