Wipline Floats: Hydraulic Pump Locations
Wipaire, Inc. has built many different float models over the past 50 years. Many improvements have been made along the way as technology and engineering designs have changed. Some of the changes were implemented due to aircraft design changes, and some were implemented as product improvements. Some of the changes that have been made have to do with the hydraulic pumps and systems used, and also the location of the hydraulic pump. Some of the first amphibious floats designed used engine driven pumps. Many did not have backup emergency hand pumps to cycle the landing gear if something went wrong. Currently, all Wipline models use hydraulic pumps that are located in the fuselage or on the firewall and all are backed up with a secondary emergency hand pump system.
There was a time when Wipaire installed the hydraulic pumps inside the floats. After several seasons we realized that this was not a good idea. The float compartments are a very humid environment, and having electronic components inside the float shortened the life of the pumps. The wiring and the pumps corroded very quickly. Also, you ran the risk of damaging the pump and the wiring while placing cargo inside the baggage compartment. Putting the pump inside the aircraft increases the life cycle of the pump, also keeps the pump in a safe non-humid location that cannot be damaged by cargo.
Many changes have been made with the design of Wipline floats over the past 50 years. All of these changes have been made to better the quality, performance, and also the longevity of our products. Wipaire, Inc. strives to manufacture and design the highest quality, best performing, and longest lasting floats in the world, and will continue to do so. Keep an eye on our website, you never know what the next new product or improvement may be.