Table 3-13 Ground Plane Definitions And Ground Path Resistance Requirements - Garmin GTX 335 w GPS Installation Guidance

Table 3-13 Ground Plane Definitions and Ground Path Resistance Requirements

Aircraft Type/Model
Metal airframe
Tube and fabric airframe
Aermacchi S.211A
DA20-A1
DA20-C1
Diamond
DA 40
DA 40 NG
G115
G115A
G115B
G115C
GROB G115C2
G115D
G115D2
G115EG
G120A
Triton A500
Beech 390
LC40-550FG
Cessna LC41-550FG
LC42-550FG
SR20
Cirrus SR22
SR22T
DA 40
DA 40 F
DA 40 NG
Diamond
DA 42
DA 42 NG
Liberty XL-2
Triton A500
[1] Diamond DA 40 and DA 40 F with Diamond OSB 40-004/3 incorporated, or aircraft with
similar factory-installed lightning protection supporting IFR operation.
[2] IFR models must use values of 10.0, and 5.0 for bonding tests and use aircraft lightning
ground per the aircraft SRM or other manufacturer-approved data as ground reference
instead of the instrument panel.
190-00734-17
Rev. 1
Ground Reference
Nearby Metal Structure
Nearby Metal Structure
Composite VFR-only Models
Instrument Panel
Instrument Panel
Instrument Panel
Instrument Panel
Instrument Panel
Instrument Panel
Composite IFR-Models
Nearby structure lightning
ground foil
Nearby aluminum lightning
ground strip/bar
Local grounded structure (i.e.,
seat support structure, entry
step)
Nearby structure lightning
ground tube
Remote avionic box or local
grounded structure
Local grounded structure
Local grounded structure
Maximum Resistance Between
GTX Chasis and Ground
Reference (mΩ)
Periodic Reconditioned
10.0 2.5
10.0 2.5
50.0 25.0
50.0 25.0
50.0 25.0
50.0 25.0
50.0 25.0
50.0 25.0
10.0 5.0
10.0 5.0
10.0 5.0
10.0 5.0
10.0 5.0
10.0 5.0
10.0 5.0
GTX 335 w/GPS Installation Guidance
Notes
[2]
[2]
[2]
[1]
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