EFD1000 E5 Dual Electronic Flight Instrument (EFI) Install Manual
DOCUMENT # 900-00041-001
PAGE 44-226
REVISION D
© Copyright 2019 Aspen Avionics Inc.
5.1.5
Cessna 190/195 Special Consideration
Some Cessna 190/195 aircraft have non-standard airspeed indicators that cannot be
replaced by standard airspeed indicators. Therefore, when used in aircraft with non-
standard airspeed systems, the EFD1000 E5 airspeed tapes must be “locked off” in the
EFD1000 E5 installation menus so the pilot always uses the non-standard airspeed
indicator.
Most Cessna 190/195 aircraft with a standard (“L”)-shaped pitot mast use standard
airspeed indicators. Cessna 190/195 aircraft with a “Harpoon”- shaped pitot mast do not
have a standard airspeed indicator.
Review of the logbooks and technical data must be accomplished to verify that the
airspeed indicator is standard or not. Generally, unless modified, aircraft serial number
16084 and above have standard airspeed indicators, and 16083 and below do not.
The pitot and static systems must still be connected to the EFD1000 E5 because these
inputs are used in the EFD1000 E5 for other purposes.
CAUTION: Cessna 190/195 aircraft using non-standard airspeed indicators must have the EFD1000
E5 airspeed and altitude tapes “locked off” in the installation menus.
NOTE: The Pitot and Static system must be connected to the EFD1000 E5 even when the tapes are
not to be displayed.
5.2
Reserved
5.3
Conventional Landing Gear “tail dragger” Aircraft
The following precautions are necessary for installations in aircraft with conventional landing
gear, due to the necessity of initializing the EFD1000 E5 in a tail-down position:
The RSM must be P/N 910-00003-00x.
The on-ground heading accuracy of the EFD1000 E5 must be /-4 degrees. A
RSM shim might be required to meet this tolerance – see Section 6.9.11.
See Section 10.5.1.2 for a conventional gear specific RSM calibration procedure.
