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COMANT VHF COMMUNICATIONS CI-291

$230.95/Each
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Part# 11-17991
MFR Model# CI-291

Overview

Frequencies Covered
118-137 MHz

Features high strength fiberglass “stick” radiator and die-cast 3-hole mount aluminum base. Virtually identical in appearance to many Cessna communication antennas and most LORAN antennas.

The CI 291 has been re-tested and upgraded to the new RTCA DO-160D environmental requirements and offers the 118 to 137 MHz frequency associated with DO 186A MOPS.

Note: Comant Antennas no longer come with a gasket or template. Must order PN 09-05579 separately.

Applications
Single engine piston aircraft for applications of this antenna design. Consult your FBO or installation shop for best application information.

Specifications

MODEL CI291 VHF ANTENNA
Electrical
Frequency
118-137 MHz

VSWR

2.5:1 Maximum
Polarization
Vertical
Radiation Pattern
Omnidirectional
Impedance
50 Ohms
Power
50 Watts
Mechanical
Weight

0.5 lb. Maximum

Height
18.88 in. Maximum
Material
Cast Housing/Fiberglass Whip
Finish
Polyurethane Enamel
Connector
BNC (Female)
Environmental
Temperature
-55ºC to +85ºC
Altitude
50,000 ft.
Air Speed
250 Knots TAS
Federal Specification
RTCA Environmental
DO-160D
FAA TSO
C37d, C38d
RTCA MOPS
DO-186A
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Q&A

Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Can you confirm the CI-291 is a 3 hole base?

Yes. The CI-291 has a 3 hole base.

Q: Would this be suitable for an ultralight application?

Yes, this can be used for ultralights.

Q: What is the difference between the CI 291 and the CI 121?

The CI291 has a 3 hole footprint and is different in height. But the specifications of function are the same.

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