Out With The Old
Tired of looking all around that panel to find all of your
engine instruments? Are some of them not working very well? You
need to check out the newest offerings from J.P. Instruments.
While wandering around Lakeland, we couldn't help but notice the
large clear and colorful displays of the EDM-900 and EDM-930. These
instruments are TSO'd and can be used as a primary replacement for
old instruments, or simply for an easy to read advisory. Joe
Polizzotto is the CEO, and he was right there in the booth with
Polizzotto is a mechanical engineer who developed an engine
scanner in 1979 for his personal aircraft with help from his uncle
Joe Giannelli and his current partner and VP, Larry Elbert. After
other pilots saw the instrument, they wanted one of their own. That
led to the foundation of JPI in Santa Ana, California.
The new instruments can show RPM, manifold pressure, oil
temperature, oil pressure, fuel flow, fuel pressure, voltage,
amperage, outside air temperature, fuel levels, cylinder head
temperatures, exhaust gas temperatures, and can even interface with
an external GPS. An additional unit, the EDM-950 can be used to
interface with displays such as those put out by OP
The instruments are sold as a TSO'd instrument, plus a fee may
be charged if the instrument will be used as a primary display. In
that case, the company will use limitations from the aircraft
flight manual to generate the appropriate markings on the
instrumentation. The company has about 100 planes on their STC
list, and more will be added.
The new boxes will be shipping in June. Polizzotto would like to
sell about 100 systems a year. He doesn't see any direct
competition for this type of system.