PK 2250A

Dan Dufault 1
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PK 2250A Amphibious Float

P.K. Floats Inc. received STC certification for the PK 2250A on Nov. 7, 2008 for all model Husky’s including the A-1C 180hp and 200hp model.
(STC# SA00280BO).

The basis for design for the PK 2250A was the PK B2300, but many features of the newer amphibious PK 3050A have also been incorporated. The spreader bar lug of the 2250A is CNC machined from aluminum and anodized for corrosion protection. This float features stainless steel swing arms on the main gear and composite leaf springs with shimmy dampeners on the nose. The 2250A has a double puck braking system that will greatly improve braking power and reduce braking distance. The hydraulic system is installed in the left hand float compartment and is arranged similar to the larger 3050A. The installation of the power pack in the float reduces plumbing, therefore reducing weight. The rear bottom is made from a single sheet of aluminum to increase strength and maintain watertight integrity. Forward of the step there is a robust keel that is nearly ½”x½” in cross section. The 2250A features full length inboard and outboard half-hydroboosters that reduces spray. There are also four hydroboosters forward of the step, which improve takeoff performance. This combination of keel, hydrobooster and half-hydrobooster forward of the step create a very strong bottom structure.

Prior to assembly, all aluminum components, including skins and bulkheads, are chemically treated and then epoxy primed. During assembly, the floats are fully sealed to create a watertight structure. All dissimilar metals are isolated to prevent corrosion. Following assembly, the exterior of the floats are cleaned and painted with two coats of aluminum pigmented lacquer or color matched to the plane with urethane paint.

The PK 2250A float is manufactured using flat sheet aluminum, there are no specially formed bottoms, or stamped bulkheads. Therefore skins can easily be replaced in the event of severe damage. This also means that in the event of an emergency, field repairs can be made with ordinary hand tools.

The basic hydrodynamic configuration of the float is a deep-V design. The high sternpost angle permits small radius turns and freedom during aircraft rotation at takeoff. Rough water operations are unsurpassed because of the deep-V design of the bottom. Takeoff distance on glassy water is reduced, because of the addition of four hydroboosters, even in high density altitude conditions.

  • Aviat Husky A-1, A-1A, A-1B, A-1C-180, A-1C-200
  • Max Gross Weight: 2550lbs
  • Displacement of one float completely submerged: 2550lbs
  • Max Stalling Speed: 58.6
  • Hull Length, width, depth: 213.5”, 28.2” 27.06”
  • Keel to Keel: 88”
  • Overall Width: 116”
  • Cruise Speed: 105mph
  • Installed Weight: 409lbs
  • Height (Top of tail): 128”
  • Baggage Compartment: Standard, 50lbs max
  • Number of Watertight compartments: 6