Recently purchased an HP Slate 500 tablet PC to use in my plane with the AnywhereMap Pro GPS navigation system. This tablet was developed by HP for commercial use (although I hear that it is now available at some retail locations).
The tablet has an 8.9″ screen, so it will fit nicely on the yoke in my plane. Unfortunately, there does not seem to be a commercial supplier of a tablet mounting plate for the HP Slate 500, including the biggest suppliers of such things, RAM Mounts. The mounts available from RAM either are generic “tabletop” plates that are far too big or plates for the iPAD that do not fit the HP slate. So I made my own yoke mount plate. Pictures below.
The mounting plate is made from aviation grade 2024 Aluminum, 0.040″ thick. This is stiff enough to hold the tablet well while thin enough to work with the cutting, bending, and finishing tools in my hangar. It’s a simple design, basically a cruciform shape with double horizontal members. This leaves space for all of the ports and controls while providing arms that securely hold the tablet on the yoke. The bottom arm has an additional vertical surface to hold the tablet bottom in place and the other arms secure it laterally.
To hold the tablet securely on the plate, I fabricated a U-shaped top bracket that velcros to the top side of the top arm to hold the tablet within the 6 arms of the plate (there is very little force against this U bracket, a design I used successfully in a previous tablet plate. Primed and painted grey. The tablet inserts easily onto the plate and then held securely with the U bracket.
This tablet plate bolts to a standard circular RAM 1″ ball mount, connecting arm, and adjustable yoke mounting arm. This general design should work for most tablets, with the securing arms sized and located as needed to avoid ports and ventilation holes.