Honeywell BendixKing KLR 10 User manual

Installation
Manual
BendixKing.com
KLR 10
Lift Reserve Indicator

Bendix/King by Honeywell
9201-B San Mateo Blvd. NE
Albuquerque, New Mexico 87112
Product Registration
For product registration go to BendixKing.com or call our customer support number below
Customer Support
US and Canada - 1.855.250.7027
International – 1.602.365.7027
bendixking.com/support
At Bendix/King we value your opinion and we are listening. For comments about this guide, please email:
[e-mail]
COPYRIGHT NOTICE
© 2013 Bendix/King by Honeywell. All rights reserved.
Reproduction of this publication or any portion thereof by any means without the express written
permission of Honeywell International Inc. is prohibited. See Appendix for complete terms and conditions.
The information contained in this manual is for reference only. If any information
contained herein conflicts with similar information contained in the Airplane Flight
Manual, the information in the Airplane Flight Manual shall take precedence.

KLR 10 Lift Reserve Indicator Installation Manual
P/N D201305000058 Title
Rev 1 Jul 2013 Page T-1
KLR 10™
LIFT RESERVE
INDICATOR
INSTALLATION MANUAL
The KLR 10 is approved for installation in experimental category aircraft ONLY.
It is not approved for installation in certified aircraft

KLR 10 Lift Reserve Indicator Installation Manual
Title P/N D201305000058
Page T-2 Rev 1 Jul 2013
This Page
Intentionally Left Blank

KLR 10 Lift Reserve Indicator Installation Manual
P/N D201305000058 Record of Revisions
Rev 1 Jul 2013 Page RR-1
Revision History and Instructions
Manual KLR 10 Life Reserve Indicator Installation Manual
Revision 1
Summary Revised footers.
Manual KLR 10 Life Reserve Indicator Installation Manual
Revision 0
Summary This is a new release.

KLR 10 Lift Reserve Indicator Installation Manual
Record of Revisions P/N D201305000058
Page T-2 Rev 1 Jul 2013
Record of Revisions
REVISION
NUMBER REVISION DATE
0 JULY, 2013
1 JULY, 2013
.

KLR 10 Installation Manual
P/N D201305000058 Table of Contents
Rev 1 Jul 2013 Page TC-1
Table of Contents
Section Page
1. GENERAL........................................................................................................................................... 1-1
1.1 Objective:................................................................................................................................... 1-1
1.2 References:................................................................................................................................ 1-1
1.3 Page and Subject Numbers:...................................................................................................... 1-1
1.4 Revisions:................................................................................................................................... 1-1
1.5 Technical Support:..................................................................................................................... 1-1
1.6 Warranty Information:................................................................................................................. 1-1
1.7 Standard Components............................................................................................................... 1-3
1.8 Optional Components ................................................................................................................ 1-3
1.9 KLR 10 Main Component Details:.............................................................................................. 1-4
KLR 10 indicator......................................................................................................................... 1-4
Panel Mounting Kit..................................................................................................................... 1-4
KLR 10 Swivel Mount Kit............................................................................................................ 1-5
KLR 10 Interface Module (IF Module)........................................................................................ 1-5
KLR 10 AOA probe .................................................................................................................... 1-6
2. PLANNING.......................................................................................................................................... 2-1
2.1 Preparation:................................................................................................................................ 2-1
2.2 Establish the Location for the KLR 10 Indicator:........................................................................ 2-1
2.3 Establish the Location for the IF Module:................................................................................... 2-2
2.4 Establish the Location for the AOA probe.................................................................................. 2-3
2.5 Establish a Plan to Route the Sense Lines................................................................................ 2-4
2.6 Establish a Plan for the Electrical Power:.................................................................................. 2-4
2.7 Optional Probe Heat Installation:............................................................................................... 2-4
2.8 Review your Plans ..................................................................................................................... 2-5
3. INSTALLATION.................................................................................................................................. 3-1
3.1 Installation Of the Probe Mounting Plate ................................................................................... 3-1
3.2 Installation Of the Sense Lines.................................................................................................. 3-1
3.3 Install Wiring, Switch & Circuit Breaker for KLR 10 ................................................................... 3-2
3.4 Install Wiring, Switch & Circuit Breaker for Probe Heat............................................................. 3-2
3.5 Install the KLR 10 Swivel Mount (Optional) ............................................................................... 3-4
Glareshield Mounting Instructions.............................................................................................. 3-4
3.6 Installation Of the KLR 10 Indicator........................................................................................... 3-6
3.7 Installation Of the IF Module...................................................................................................... 3-6
3.8 Installation Of AOA Probe.......................................................................................................... 3-8
3.9 Inspect the KLR 10 Installation................................................................................................ 3-10
4. Setup and Calibration....................................................................................................................... 4-1
4.1 On The Ground Zero Pressure Calibration:............................................................................... 4-1
Failure to Complete Zero Pressure Ground Calibration ............................................................ 4-1
4.2 SET Brightness of the KLR 10 indicator (optional).................................................................... 4-2
4.3 Master Volume Set..................................................................................................................... 4-3
4.4 In-Flight Calibration Overview.................................................................................................... 4-3
4.5 In-Flight Optimum Alpha Angle (OAA) calibration ..................................................................... 4-5
4.6 In-Flight Cruise Set Point Calibration......................................................................................... 4-6
4.7 Exiting the Calibration Mode...................................................................................................... 4-7
4.8 Completing the Calibration:........................................................................................................ 4-8

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Page TC-2 Rev 1 Jul 2013
Table of Contents (cont)
Section Page
5. Appendix.............................................................................................................................................5-1
5.1 Acronyms and Abbreviations......................................................................................................5-1
5.2 IF Module Connectors Pin Definitions........................................................................................5-2
5.3 AOA Probe Angles......................................................................................................................5-3
Positive Probe Lock System.......................................................................................................5-3
5.4 Limitations...................................................................................................................................5-4
5.5 Honeywell-Confidential...............................................................................................................5-5
5.6 Copyright - Notice.......................................................................................................................5-6

KLR 10 Installation Manual
P/N D201305000058 Table of Contents
Rev 1 Jul 2013 Page TC-3
List of Illustrations
Figure Page
Figure 1-1: KLR 10 Indicator...................................................................................................................... 1-4
Figure 1-2: Panel Mounting Kit.................................................................................................................. 1-4
Figure 1-3: KLR 10 Swivel Mount.............................................................................................................. 1-5
Figure 1-4: KLR 10 Interface ..................................................................................................................... 1-5
Figure 1-5: AOA Probe Sensor Fittings..................................................................................................... 1-6
Figure 1-6: Mounting Plate ........................................................................................................................ 1-6
Figure 2-1: AOA Probe in Wing................................................................................................................. 2-3
Figure 3-1: Mounting Plate Alignment....................................................................................................... 3-1
Figure 3-2: Swivel Mount on Glareshield................................................................................................... 3-4
Figure 3-3: Swivel Mount Template........................................................................................................... 3-4
Figure 3-4: Swivel Mount Instructions - Step 1.......................................................................................... 3-5
Figure 3-5: Swivel Mount Instructions - Step 2.......................................................................................... 3-5
Figure 3-6: Swivel Mount Instructions - Step 3.......................................................................................... 3-5
Figure 3-7: KLR 10 Interface Module Electrical Connectors..................................................................... 3-7
Figure 3-8: KLR 10 Interface Module Sense Line Connectors.................................................................. 3-7
Figure 3-9: AOA Probe Pin Positions- Left Side........................................................................................ 3-8
Figure 3-10: AOA Probe Pin Positions- Right Side................................................................................... 3-8
Figure 3-11: Correct position of Probe lock plate...................................................................................... 3-9
Figure 3-12: Enlarging Mounting Plate Hole.............................................................................................. 3-9
Figure 3-13: AOA Probe Connectors....................................................................................................... 3-10
Figure 4-1: Master Volume Controls.......................................................................................................... 4-3
Figure 4-2: OAA Setpoint Flowchart........................................................................................................ 4-10
Figure 4-3: Cruise Setpoint Flowchart..................................................................................................... 4-11
Figure 5-1: Right Side Angles.................................................................................................................... 5-3
Figure 5-2: Left Side Angles...................................................................................................................... 5-3

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Table of Contents P/N D201305000058
Page TC-4 Rev 1 Jul 2013
List of Tables
Table Page
Table 1-1: Standard Kits ............................................................................................................................1-3
Table 1-2: KLR 10 Standard Kit Components............................................................................................1-3
Table 1-3: KLR 10 Optional Components..................................................................................................1-3
Table 4-1: Indications and Annunciations During Calibration....................................................................4-9
Table 5-1: Power Connector......................................................................................................................5-2
Table 5-2: Auxiliary I/O Connector.............................................................................................................5-2
Table 5-3: Display Connector.....................................................................................................................5-2

KLR 10 Installation Manual
P/N D201305000058 General
Rev 1 Jul 2013 Page 1-1
1. GENERAL
1.1 OBJECTIVE:
This manual contains a lot of information that is repeated and shown in different ways to help explain all
steps of installation through calibration and help with the FAA required paperwork. Think of this manual
as a written journey, to give you as much detail as you want.
This manual is designed to take you step by step through the planning, installation, documentation and
calibration for your KLR 10. If you follow the instructions through the entire process, the installation can
be completed correctly the first time.
1.2 REFERENCES:
For those of you that desire more information we have included references with the instructions. These
references may be used as acceptable data when documenting the installation.
1.3 PAGE AND SUBJECT NUMBERS:
Pages in this manual are assigned a two part page number. The first number always specifies the
chapter number. The last number always indicates the page number. Subjects within a chapter are
numbered with the chapter number first then the subject number second.
1.4 REVISIONS:
When a revision is required of this manual, the manual will be revised in its entirety.
1.5 TECHNICAL SUPPORT:
Contact Bendix/King’s customer support lines at 1-855-250-7027 / 602-365-7027 or
[e-mail].
1.6 WARRANTY INFORMATION:
Seller’s obligation and Buyer’s sole remedy under this warranty is repair or replacement, at Seller’s
election, of any Product Nonconformance. All Products repaired or replaced are warranted only for the
unexpired portion of the original warranty period.
Bendix/King offers a two year warranty from date of purchase against manufacturer defect for material
and labor. After expiration of standard warranty repair coverage will be available for a fixed fee of $200
per occurrence until five years from date of purchase. After that repairs are subject to parts and labor
cost.
Seller assumes round trip shipping costs for Nonconforming Products in an amount not to exceed normal
surface shipping charges to and from Seller’s nearest warranty repair facility for such Products. The party
initiating transportation bears the risk of loss or damage to Products in transit. If Seller reasonably
determines, after analysis of the returned Product, that a Nonconformance does not exist, then Buyer will
pay all expenses related to the improper return including, but not limited to, analysis and shipping
charges.

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Seller will not be liable under this warranty for: (1) maintenance, repair, installation, handling, packaging,
transportation, storage, operation or use of Products which is improper or otherwise not in compliance
with Seller’s instruction; (2) Product alteration, modification or repair by anyone other than Seller or those
specifically authorized by Seller; (3) accident, contamination, foreign object damage, abuse, neglect or
negligence after Product shipment to Buyer; (4) damage caused by failure of a Seller supplied Product
not under warranty or by any hardware or software not supplied by Seller; (5) use of counterfeit or
replacement parts that are neither manufactured nor approved by Seller for use in Seller-manufactured
Products; (6) products not manufactured by Honeywell (but manufacturer’s warranty is passed through to
Buyer to the extent permitted); or (7) Products normally consumed in operation or which have a normal
life inherently shorter than the foregoing warranty period including, but not limited to, consumables (e.g.
flashtubes, lamps, batteries, storage capacitors). Seller has no obligation under this warranty unless
Buyer maintains records that accurately document operating time, maintenance performed and the nature
of the unsatisfactory condition of Seller’s Product. Upon Seller’s request, Buyer will give Seller access to
these records for substantiating warranty claims. THESE WARRANTIES ARE EXCLUSIVE AND IN LIEU
OF ALL OTHER WARRANTIES, WHETHER WRITTEN, EXPRESS, IMPLIED, STATUTORY OR
OTHERWISE, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE. IN NO EVENT WILL SELLER BE
LIABLE FOR ANY INCIDENTAL, CONSEQUENTIAL, SPECIAL, OR INDIRECT DAMAGES, EVEN IF
INFORMED OF THE POSSIBILITY OF SUCH DAMAGES AND NOTWITHSTANDING THE FAILURE OF
THE ESSENTIAL PURPOSE OF ANY LIMITED REMEDY. NO EXTENSION OF THIS WARRANTY WILL
BE BINDING UPON SELLER UNLESS SET FORTH IN WRITING AND SIGNED BY SELLER'S
AUTHORIZED REPRESENTATIVE. Manufactured for Bendix/King,
A Division of Honeywell International Inc.
Albuquerque, NM 87113, USA

KLR 10 Installation Manual
P/N D201305000058 General
Rev 1 Jul 2013 Page 1-3
1.7 STANDARD COMPONENTS
The table below shows the list of standard components for the KLR 10 kit:
Table 1-1: Standard Kit
PART NUMBER DESCRIPTION QTY
89000008-001001 Standard Kit 1
Table 1-2: KLR 10 Standard Kit Components
DESCRIPTION QTY
KLR 10 Indicator 1
6 ft Display Cable 1
KLR 10 Flush Mount Panel Kit 1
KLR 10 Interface Module 1
Interface Module Power Cable 1
Auxiliary Cable 1
KLR 10 Standard AOA Probe with Swivel Connectors 1
25 ft Blue and White Hose Kit 1
9 in. X 9
in. Standard Mounting Plate with Hardware and Probe
Lock Plate 1
Small flat-head screwdriver for calibration 1
Protractor 1
AOA Probe Cover with Flag 1
Installation Manual 1
Pilot’s Guide 1
Certificate of Conformity 1
Note: If a 12 V or 24 V heated probe or glare shield swivel mount is ordered
with the kit, it will replace the standard probe or flush mount included
with the kit respectively.
1.8 OPTIONAL COMPONENTS
The table below shows the list of optional components for the KLR 10 system:
Table 1-3: KLR 10 Optional Components
PART NUMBER DESCRIPTION QTY
89000008-543001 12 VDC Heated AOA Probe 1
89000008-544001 24 VDC Heated AOA Probe 1
89000008-685001 KLR 10 Flush panel mount 1
89000008-686001 KLR 10 Glare shield Swivel Mount 1
89000008-684001 KLR 10 AOA Probe Cover with Flag 1

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General P/N D201305000058
Page 1-4 Rev 1 Jul 2013
1.9 KLR 10 MAIN COMPONENT DETAILS:
KLR 10 indicator
The KLR 10 indicator is 2.35 in. tall X 1.55 in. wide X 1.26 in. deep and can be mounted anywhere in the
cockpit
Figure 1-1: KLR 10 Indicator
Panel Mounting Kit
Mounting ears are included in the Panel Mounting Kit that attach to either side of the KLR 10 Indicator as
shown in the figure below. This lets you mount the KLR 10 indicator anywhere on the panel.
Note: If the KLR 10 is ordered with the optional swivel mount, the mounting ears are not included in
the kit, but can be ordered as an optional accessory.
Figure 1-2: Panel Mounting Kit

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P/N D201305000058 General
Rev 1 Jul 2013 Page 1-5
KLR 10 Swivel Mount Kit
An optional mounting kit is available for vertical swivel flush mount for those aircraft that have a sloping
glare shield, see Figure 1-3 below.
.
Figure 1-3: KLR 10 Swivel Mount
KLR 10 Interface Module (IF Module)
The IF module is 1.63 in. tall X 5.81 in. wide X 2.58 in. deep and weighs 0.8 LBS.
Figure 1-4: KLR 10 Interface

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General P/N D201305000058
Page 1-6 Rev 1 Jul 2013
Figure 1-5: AOA Probe Sensor Fittings
KLR 10 AOA probe
The AOA Probe is mounted on a 9 in. x 9 in. mounting plate. The mounting plate is cut to fit the existing
opening.
Figure 1-6: Mounting Plate
AOA Probe and 2 fittings = .23 lbs.
9”X9” plate + hardware = .40 lbs (Less when cut to fit existing opening)
Add .25 lbs with optional heated probe.
Two sense lines are connected to the AOA probe. The weight of sense line is .02 lbs/ft.

KLR 10 Installation Manual
P/N D201305000058 Planning
Rev 1 Jul 2013 Page 2-1
2. PLANNING
2.1 PREPARATION:
This chapter will guide you through the planning phase of the installation process. To prepare for the
installation it is recommended that you read this manual in its entirety and complete this chapter prior to
performing any work.
2.2 ESTABLISH THE LOCATION FOR THE KLR 10 INDICATOR:
The KLR 10 is intended to provide supplemental information therefore it cannot be used as a
replacement for any required instruments. There is some good guidance in AC43.13-2B Chapter 11 and
FAR §23.1321 that refer to the location and installation of the instruments. Basically the instruments
should be arranged in the standard “T” configuration with the KLR 10 indicator preferably as high and left
of the attitude indicator as possible. The location should also allow routing of the electrical wiring so it will
not interfere with any moving controls, cables or come in contact with any line containing flammable fluids
or gases.
Since the KLR 10 indicator is electronic there are a number of other considerations that should be looked
at, for example the intent of FAR 23.1311 is to cover installation of “CRT” or “LCD” displays that replace
conventional analog instruments. Since the KLR 10 system does not replace any required instruments
and does not involve a “CRT or “LCD” display the regulation may not apply. Taking a conservative
approach and showing compliance with this FAR can be done as follows:
23.1311 Electronic display instrument system
(a)(1) Arrangement and visibility; this requirement will have been met by complying with FAR 21.1321.
(a)(2) Be easily legible under all lighting conditions; this requirement has been met by design. The display
is designed to be seen in direct sunlight and has a built in dimming device for lower levels of light.
(a)(3-7),(b)&(c) Does not apply since the system is a stand-alone system and does not interface or
replace any existing instruments or displays and is not considered essential for flight.
Listed below are four different scenarios, find and complete the one that pertains to your installation and
use the following formula when calculating the additional load:
(Indicator Weight) X (Aircraft “G” Limit) X 1.5 (Safety Margin) = Additional Load
Example:
.5lbs X 6.6 X 1.5 = 4.95lbs.
IF you plan to install the KLR 10 indicator in an existing hole on the instrument panel then a
determination is needed to insure that the fasteners/shock mounts will accept the additional load of the
indicator. This is an easy one, the KLR 10 indicator only weighs .5 lbs so the addition of the KLR 10
indicator should not normally exceed the limits of the mounting hardware. This is a preferred method of
installing the KLR 10 indicator and in most cases will require no additional alterations. Please refer to
AC43.13-2B Chapter 1 and Chapter 2 paragraph 203(a-e) for guidance.
IF you plan to install the KLR 10 indicator in a panel that is shock mounted and has no existing
mounting hole present you will need to make two determinations. First, will the shock mounts accept
the additional load of the KLR 10 indicator and secondly, will the panel be strong enough with an
additional instrument hole in it. The KLR 10 indicator only weighs .5lbs so the addition of the KLR 10
indicator should not normally exceed the limits of the shock mounts. The panel strength should not be an
issue if you keep the hole spacing the same as the original panel layout. This is also a preferred method
of installing the KLR 10 indicator and in most cases will require no additional support structure. Please
refer to AC43.13-2B Chapter 1 and Chapter 2 paragraph 203(a-e) for guidance

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IF you plan to install the KLR 10 indicator on a glare shield you will need to make a determination that
the structure is strong enough to support the weight of the indicator. This is also a preferred method of
installing the KLR 10 indicator and in most cases will require no additional support structure. Please refer
to AC43.13-2B Chapter 1 and Chapter 2 paragraph 205(a-c) for guidance.
IF you plan to install the KLR 10 indicator in a panel where no mounting hole is present and the panel
is not shock mounted several determinations will be required. First is the panel non-structural? If so,
you will need to determine that the mounting hardware will accept the additional load of the KLR 10
indicator and will the panel be strong enough with an additional instrument hole in it. The KLR 10
indicator only weighs .5lbs so the additional load of the KLR 10 indicator should not normally exceed the
limits of the mounting hardware. The panel strength should not be an issue if you keep the hole spacing
the same as the original panel layout. This method of installing the KLR 10 indicator will, in most cases,
not require additional support structure. If the panel you intend to install the KLR 10 indicator in is a
structural panel, refer to AC43.13-2B Chapter 1 and Chapter 2 paragraph 203(a-e) for guidance.
2.3 ESTABLISH THE LOCATION FOR THE IF MODULE:
The IF module is used to convert pressures, measured at two points on the AOA probe, to an electronic
signal that is then delivered to the KLR 10 indicator which displays KLR 10 information to the pilot. The IF
module may be physically installed just about anywhere observing the following limitations:
On a structure that will support the additional load of the IF module.
The sense lines are routed so that they do not interfere with any moving controls or cables.
The electrical wiring does not interfere with any moving controls or cables and does not come in
contact with any line containing flammable fluids or gases.
The IF module must be bonded to the airframe (grounded for shielding).
The IF module must be mounted within six ft of the AOA Display.
The IF module must be mounted within six ft of the power source or the optional on/off switch. *
NOTE: If a longer cable is required it may be possible to have a longer custom cable assembly
fabricated, contact Bendix/King for more information.
Use the following formula when calculating the additional load:
(Module Weight) X (Aircraft “G” Limit) X 1.5 (Safety Margin) = Additional Load
Example:
.8lbs X 6.6 X 1.5 = 7.92lbs.
Please refer to AC43.13-2B Chapter 1 and Chapter 2 paragraphs 201, 202, 204-206 for guidance.

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2.4 ESTABLISH THE LOCATION FOR THE AOA PROBE
The AOA probe is mounted on the wing with the following limitations:
The AOA probe is mounted a minimum of 24 in. outboard of the propeller arc.
The AOA probe is a mounted a minimum of 12 in. inboard of the wing tip.
The AOA probe is a mounted at least 6 in. outboard of any struts or landing gear.
The AOA probe is a mounted between 10% to 90% of the Mean Aerodynamic Cord (MAC).
The AOA probe must not be mounted on a wing that contains a remote compass system if heated
probe is to be installed for the AOA probe.
Figure 2-1: AOA Probe in Wing
Due to the number of aircraft, wing designs, inspection locations, braces, struts and so on, the object of
the best location is “clean air flow / undisturbed air” at the location of the AOA probe for all angles,
slips or attitudes, would not affect the measurement of air present at the AOA probe.
Listed below are three different scenarios, find and complete the one that pertains to your installation and
use the following formulas when calculating the additional load and drag:
(AOA Probe + Hardware Weight) X (Aircraft “G” Limit) X 1.5 (Safety Margin) = Additional Load
Examples:
.6lbs X 6.6 X 1.5 = 5.94lbs.
(Drag Coefficient) X (Frontal Area of the AOA Probe) X VNE²= Drag in LBS at VNE
.000327 X .064 X200² = .83712
IF a non-structural inspection panel is available, determine that the existing structure will support the
additional load and drag of the AOA probe and mounting hardware. Please refer to AC43.13-2B Chapter
1 & Chapter 3 for guidance. This is the preferred method of installing the AOA probe and in most cases
will require no additional support structure. However, if you have a very fast and/or a thin skinned aircraft
the addition of supporting structure may be required. Please refer to AC43-13-1B Chapter 4, AC43.13-2B
Chapter 1 & Chapter 3 for guidance.
IF no inspection panel is available to support the AOA probe, an inspection hole along with a doubler
and/or supporting structure may be installed in the wings skin. Please refer to AC43.13-1B Chapter 4,
AC43.13-2B Chapter 1 & Chapter 3 for guidance.

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2.5 ESTABLISH A PLAN TO ROUTE THE SENSE LINES
The sense lines must be installed through the aircraft structure with the following limitations:
Do not remove hose end caps until final connector installation. This keeps contamination from
entering the sense lines during installation.
A minimum bend radius of 4” for the lines must be observed.
Attach the sense lines at regular intervals by means of suitable clamps.
Do not clamp sense lines at the end fittings.
Use AN931 Grommets (preferred) or bulkhead fittings where the sense lines pass thru bulkheads.
Engineering data may be required if installing on a pressurized aircraft.
Keep the sense lines well clear of any moving controls or cables.
Refer to AC43.13-1B chapter 12 section 4 for instructions on replacing/installing new pitot static lines.
2.6 ESTABLISH A PLAN FOR THE ELECTRICAL POWER:
The KLR 10 requires less than ¼ amp (250 mA) of electrical power within its acceptable voltage range of
10-28 VDC. Our recommendations would be to have the KLR 10 get power from the avionics bus through
an on/off switch in series with the positive lead for the control module (this would offer some protection
from surges during starts and the on/off switch would enhance operational flexibility).
For additional information please refer to AC43.13-1B Chapter 11, which has a wealth of information on
wire, switches, loads, etc., also AC43.13-2B Chapter 2 paragraph 207 is useful.
2.7 OPTIONAL PROBE HEAT INSTALLATION:
The optional heated probe requires 7.8 amps of electrical power at 12 or 24VDC.
Determine the size of wire required from AC43.13-1B Chapter 11 Section 5, (12VDC in free air #14 wire
will be adequate for runs up to 20’ & for 24VDC in free air #16 wire will be adequate for runs up to 25’).
As an added precaution to prevent interference with other aircraft systems use MIL Spec. shielded wire.
Electrical cable/wire must be installed such that the risk of mechanical damage and/or damage caused by
fluids, vapors, or sources of heat, is minimized. Route as far away as possible from any instrument,
system or wiring that may be effected (i.e. compass/flux gate, antenna or antenna coax).
We recommend that you use a Mil. Spec. DC switch with silver contacts rated for twice the required
amperage (i.e. Eaton 8500K9, MS24523-22 SPST switch).
AC43.13-1B Chapter 11 has a wealth of information on wire, switches, loads, etc. also AC43.13-2B
Chapter 2 paragraph 207 is useful.