Garmin AOA System Manuale utente

AOA System

Owner’s Manual

This manual reﬂects the operation of System Software version 2.10 for the GI 260,

or later. Some differences in operation may be observed when Comparing the

information in this manual to later software versions.

Garmin International, Inc., 1200 East 151st Street, Olathe, KS 66062, U.S.A.

Tel: 913/397.8200 Fax: 913/397.8282

Garmin AT, Inc., 2345 Turner Road SE, Salem, OR 97302, U.S.A.

Tel: 503/391.3411 Fax 503/364.2138

Garmin (Europe) Ltd., Liberty House, Bulls Copse Road, Hounsdown Business

Park, Southampton,

SO40 9RB, U.K.

Tel. +44 (0) 870 850 1243 Fax +44 (0) 238 052 4004

Garmin Corporation, No. 68, Zhangshu 2nd Road, Xizhi Dist., New Taipei City

221, Taiwan (R.O.C.)

Tel: 886/02.2642.9199 Fax: 886/02.2642.9099

www.garmin.com

https://ﬂy.garmin.com/ﬂy-garmin

Except as expressly provided herein, no part of this manual may be reproduced,

copied, transmitted, disseminated, downloaded or stored in any storage medium,

for any purpose without the express written permission of Garmin. Garmin hereby

grants permission to download a single copy of this manual and of any revision

to this manual onto a hard drive or other electronic storage medium to be viewed

for personal use, provided that such electronic or printed copy of this manual or

revision must contain the Complete text of this copyright notice and provided

further that any unauthorized commercial distribution of this manual or any

revision hereto is strictly prohibited.

Garmin® is a registered trademarks of Garmin Ltd. or its subsidiaries. These

trademarks may not be used without the express permission of Garmin.

September, 2014 190-01773-00 Rev. A Printed in the U.S.A.

LIMITED WARRANTY

All Garmin avionics products are warranted to be free from defects in materials

or workmanship for: two years from the date of purchase for new Remote-Mount

and Panel-Mount products; one year from the date of purchase for new portable

products and any purchased newly-overhauled products; six months for newly-

overhauled products exchanged through a Garmin Authorized Service Center; and

90 days for factory repaired or newly-overhauled products exchanged at Garmin

in lieu of repair. Within the applicable period, Garmin will, at its sole option, repair

or replace any Components that fail in normal use. Such repairs or replacement

will be made at no charge to the customer for parts or labor, provided that the

customer shall be responsible for any transportation cost. This warranty does not

apply to: (i) cosmetic damage, such as scratches, nicks and dents; (ii) consumable

parts, such as batteries, unless product damage has occurred due to a defect in

materials or workmanship; (iii) damage caused by accident, abuse, misuse, water,

ﬂood, ﬁre, or other acts of nature or external causes; (iv) damage caused by service

performed by anyone who is not an authorized service provider of Garmin; or

(v) damage to a product that has been modiﬁed or altered without the written

permission of Garmin. In addition, Garmin reserves the right to refuse warranty

claims against products or services that are obtained and/or used in contravention

of the laws of any country.

THE WARRANTIES AND REMEDIES CONTAINED HEREIN ARE EXCLUSIVE

AND IN LIEU OF ALL OTHER WARRANTIES, WHETHER EXPRESS, IMPLIED OR

STATUTORY, INCLUDING ANY LIABILITY ARISING UNDER ANY WARRANTY OF

MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, STATUTORY OR

OTHERWISE. THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS, WHICH MAY

VARY FROM STATE TO STATE.

IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY INCIDENTAL, SPECIAL, INDIRECT

OR CONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE USE, MISUSE

OR INABILITY TO USE THE PRODUCT OR FROM DEFECTS IN THE PRODUCT. SOME

STATES DO NOT ALLOW THE EXCLUSION OF INCIDENTAL OR CONSEQUENTIAL

DAMAGES, SO THE ABOVE LIMITATIONS MAY NOT APPLY TO YOU.

Garmin retains the exclusive right to repair or replace (with a new or newly-

overhauled replacement product) the product or software or offer a full refund of

the purchase price at its sole discretion. SUCH REMEDY SHALL BE YOUR SOLE AND

EXCLUSIVE REMEDY FOR ANY BREACH OF WARRANTY.

Online Auction Purchases: Products purchased through online auctions are

not eligible for warranty coverage. Online auction conﬁrmations are not accepted

for warranty veriﬁcation. To obtain warranty service, an original or copy of the

sales receipt from the original retailer is required. Garmin will not replace missing

Components from any package purchased through an online auction.

International Purchases: A separate warranty may be provided by international

distributors for devices purchased outside the United States depending on the

country. If applicable, this warranty is provided by the local in-country distributor

and this distributor provides local service for your device. Distributor warranties

are only valid in the area of intended distribution. Devices purchased in the United

States or Canada must be returned to the Garmin service center in the United

Kingdom, the United States, Canada, or Taiwan for service.

To obtain warranty service, contact your local Garmin Authorized Service Center.

For assistance in locating a Service Center near you, visit the Garmin web site at

http://www.garmin.com or contact Garmin Customer Service at 866-739-5687.

WARNING: For safety reasons, this AOA System’s operational

procedures must be learned on the ground.

CAUTION: This AOA System does not contain any user-serviceable

parts. Repairs should only be made by an authorized Garmin service

center. Unauthorized repairs or modiﬁcations could void both the

warranty and the pilot’s authority to operate this device under FAA

regulations.

NOTE: All visual depictions contained within this document, including

screen images of the GI 260 displays, are subject to change and may

not reﬂect the most current GI 260 software. Depictions of equipment

may differ slightly from the actual equipment.

NOTE: This product, its packaging, and its Components contain

chemicals known to the State of California to cause cancer, birth

defects, or reproductive harm. This notice is being provided in

accordance with California’s Proposition 65. If you have any questions

or would like additional information, please refer to our web site at

www.garmin.com/prop65.

NOTE: This AOA System is non-required and is to be used only as

supplemental information to the pilot. This AOA System is not to be

used or substituted for a certiﬁed stall warning system. No operational

credit may be taken for reduced approach speed and shorted landing

distances.

NOTE: The approved Pilot’s Operating Handbook (POH) or Airplane

Flight Manual (AFM) always supersedes this Owner’s Manual.

NOTE: Refer to the AOA System Installation Manual for calibration

instructions.

NOTE: This AOA system is designed to be accurate in the calibrated

aerodynamic conﬁguration. When the aircraft experiences changes in

the airfoil shape (e.g., ﬂap extension or icing accumulation), the AOA

indicator may no longer accurately represent the angle of attack.

Record of Revisions

Part Number Revision Date Description

190-01773-00 A 09/2014 Initial release

190-01773-00 Rev. A

AOA System Owner’s Manual

AOA System

OVERVIEW

The Garmin AOA (Angle of Attack) System is designed to improve the pilot’s

awareness of the approximate available remaining lift of the aircraft’s wings. The

system calculates the approximate AOA (acute angle between the wing chord line and

the relative wind) using pitot, AOA, and static air pressure inputs.

When correctly calibrated, the system provides a visual approach AOA reference,

as well as increasing caution and warning annunciations as the AOA approaches the

wing’s maximum coefﬁcient of lift (CLmax).

SYSTEM DESCRIPTION

The Garmin AOA System is comprised of three components; the GI 260 Indicator,

the GAP 26 Probe, and the GSU 25 Air Data Computer. The GAP 26 sends pitot and

AOA air pressure to the GSU 25. The GSU 25 measures the air pressure inputs from

the probe and from an independent static source. The GSU 25 then calculates the AOA

information and sends it to the GI 260. The GI 260 displays the AOA information to

the pilot via ten color-coded LED annunciators. When calibrated correctly (refer to

the AOA System Installation Manual for calibration instructions), the system indicates

AOA during critical phases of ﬂight. The system also provides awareness of AOA

trends toward the target AOA for an approach, as well as visual alerting of critical

AOA. When connected to an audio panel or compatible audio system, the GI 260

issues aural alerts of increasing frequency when the system approaches the critical

angle of attack.

GI 260

AOA Indicator

Pneumatic RS-232

GSU 25

Air Data Sensor Unit

GAP 26

Air Data Probe AOA

Pressure

Pitot

Pressure

Static

Pressure

AOA

AOA System

190-01773-00 Rev. A

AOA System Owner’s Manual

AOA System

GI 260 CONTROLS

NOTE: The TEST and MUTE functions of the GI 260 are described in this

manual. Refer to the AOA System Installation Manual for information on

the CAL (calibration) and SET (alert volume) functions of the GI 260.

MUTE (SET)

Button

GI 260 Controls

TEST (CAL)

Button

SELF TEST

Press the TEST (CAL) button at any time to perform a self test of the GI 260. Upon

successful completion of the self test, all annunciators illuminate and a “Beep - Beep”

audible alert is played.



GI 260 Self Test (Pass)

All Annunciators

Illuminate Beep - Beep

190-01773-00 Rev. A

AOA System Owner’s Manual

AOA System

A failure is indicated by alternating ﬂashing red chevrons and a “Beep - Beep”

audible alert.



GI 260 Self Test (Fail)

Alternating

ﬂashing red

chevrons Beep - Beep

MUTE

Start-Up

The system is muted by default upon start-up. The system remains muted until 15

seconds has elapsed since start-up and the Angle of Attack reaches the upper yellow

chevron. The ﬁrst slow audible “Beep-Beep” alert is heard when the upper yellow

chevron annunciator illuminates.

Normal operatioN

Press the MUTE (SET) button to mute the GI 260 audible alert. When muted

manually during normal operation, the audio alert is muted for at least 15 seconds

and remains muted until the upper green bar illuminates for at least ﬁve seconds.

190-01773-00 Rev. A

AOA System Owner’s Manual

AOA System

NORMAL OPERATION

NOTE: Refer to the approved Pilot’s Operating Handbook (POH) or Airplane

Flight Manual (AFM) for recommended operational procedures.

POWER-UP

The AOA system is ON by default during power-up. During power-up, the

unit cycles its annunciators from bottom to top and back to the bottom. For

the unit to cycle its annunciators it must receive valid AOA data from the GSU

25, determine it has a valid calibration, and pass the unit self test.

GI 260 Power-Up

ARMING OF THE AOA SYSTEM

The AOA system arms automatically when the indicated airspeed exceeds 50

knots. Visual annunciations occur immediately upon arming (if applicable). Aural

annunciations are delayed for 15 seconds after the system is armed.

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