Plywood Electronics Hanging Sled

The first step in keeping an electronic altimeter safe and working well is to fly it in a payload bay, away from volatile ejection gasses.  But also vital is preventing the altimeter from rattling around inside a payload tube. This 1/8 inch plywood altimeter sled does just that by securing the altimeter on nylon posts attached to plywood that fits snugly inside your payload bay. 

• To prevent the altimeter from sliding back and forth in the payload bay, a split ring suspends the sled from the nose cone. 
• For circuit board-only altimeters like the PerfectFlite PNUT and APRA, nylon stand offs keep the altimeter secure, but also far enough above the sled to allow the barometric sensor to sample the ambient air pressure. 
• For the Jolly Logic Snap Mount style sled, stand offs are not needed, because the Jolly Logic Snap Mount (available separately) includes bolts, nuts, and a velcro strap to secure the altimeter to the sled, and the snap mount holds the altimeter with sufficient airflow for the altimeter to sample the air.

Remember, if you are flying a barometric altimeter payload, be sure to drill 3 or 4 static ports in the payload bay so the altimeter can sample the outside air pressure.  Vern Knowles has a thorough article on sizing the ports for your payload bay.

Altimeters available separately.