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Summary of Contents for SANDIA aerospace SAI-340A
- Page 1 SAI-340A Pilot Guide 3700 Osuna Road NE Suite 711 306503-00 Albuquerque, NM 87109 Rev 2 www.sandia.aero...
- Page 2 This document and the information contained herein is the propriety data of SANDIA aerospace Corporation. No part of this document may be transmitted, reproduced, or copied in any form or by any means without the prior written consent of SANDIA aerospace. Due to SANDIA aerospace’s continued product and quality improvement programs, information contained in this document is subject to change without prior notice Copyright 2016 SANDIA aerospace Corporation, all right rights reserved.
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Page 3: Table Of Contents
Table of Contents Section 1 - System Overview ........................3 Introduction .......................... 3 SAI-340A Product Description ....................3 1.2.1 Functions ........................4 1.2.2 System Interfaces ......................4 Section 2 - Normal Operation ......................... 5 Initial Power On ........................5 Thermal Stabilization ......................5 Alignment .......................... -
Page 4: Section 1 - System Overview
This manual describes the operation of the SANDIA aerospace SAI-340A Attitude Indicator. It is intended for use by pilots operating the SAI-340A in normal and abnormal operating conditions. SAI-340A Product Description The SAI-340A Attitude Indicator is a panel mounted attitude, airspeed, altitude, vertical speed and slip instrument. -
Page 5: Functions
1.2.1 Functions The SAI-340A performs the following functions: Display of Indicated Airspeed (Knots or Mph) Display of Barometric Altitude (Feet) Display of Roll & Pitch (Fixed Pointer Format, Degrees) Display of Slip Indication (Degrees) Display of Vertical Speed Indication (feet per minute) Pilot Entered Baro Correction (mb or inHg –... -
Page 6: Section 2 - Normal Operation
Section 2 - Normal Operation Initial Power On Upon initial power-on, the unit will display the company logo, battery status and software version. If the battery is not installed, has failed self-test, or is in a low-temperature state, the battery life will show 0%. Figure 2 - Power On Screen Thermal Stabilization On initial power-on, the various internal sensors must thermally stabilize. -
Page 7: Alignment
Alignment On power-up, the unit will perform an initial alignment. The aircraft should not be subjected to taxing or excessive motions during this process. Alignment is not normally performed during flight. During alignment, the aircraft should not be subjected to taxing or excessive motions. -
Page 8: Indicated Airspeed
The Rotary Knob with pushbutton provides the pilot access to all of the interactive functions of the SAI- 340. Figure 6 depicts the pushbutton selection of various functions and Table 1describes the role of the Rotary Knob in each function Figure 6 - Pushbutton Controls Mode Rotary Knob Function... -
Page 9: Indicated Airspeed Limits
2.5.1 Indicated Airspeed Limits Airspeed limits are indicated by means of colored bands and radial lines as follows: Over-Speed Vyse Under-Speed Figure 7 - IAS Limits The Vmc and Vyse are applicable to multi-engine aircraft only and will not be shown in single engine installations. -
Page 10: Barometric Altitude
The bar will not appear until the vertical rate excees ±100 Feet/Min. A digital value is also presented to the pilot. The IVSI in the SAI-340A uses both the rate of altitude change and the internal accelerometer to provide vertical speed with very little delay. -
Page 11: Altitude Bug
Altitude Bug The Altitude Bug is enabled, disabled and adjusted using the Rotary Knob with Pushbutton. Figure 6 provides an overview of the pushbutton functionality. Pressing the pushbutton for 3 seconds allows editing the Altitude Bug (Figure 10.b). The digital Altitude bug value will appear in the upper right corner of the display while editing the Altitude Bug. -
Page 12: 2.10 Slip Indication
Figure 11 - Example of Detached Horizon Line Roll and pitch rates are limited to 400 degrees per second and operation throughout all roll/pitch angles is supported. If attitude is invalid, the center area will be Red-X’ed. No excessive angle presentations are provided. - Page 13 Figure 13 - Backlight Adjust Menu After displaying the brightness menu, pushing the rotary knob again without rotating the knob will leave the unit in the previous operating mode (automatic or manual). Once placed in the manual mode, automatic mode cannot be re-entered until a power-cycle occurs. 3700 Osuna Road NE Suite 711 Albuquerque, NM 87109...
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Page 14: Section 3 - Abnormal Operation
Section 3 - Abnormal Operation Cross Check Memory Error Aligning Battery Status Figure 14 – Abnormal Operation Indicators Abnormal Annunciation Abnormal operating modes and conditions are annunciated by a variety of on-screen indications, as shown in Figure 14 – Abnormal Operation Indicators. Attitude Re-Alignment In certain abnormal operations, such as aerobics, a manual attitude alignment may be required. -
Page 15: Memory Error
Memory Error On power-on, the unit performs a self-test of the calibration and setup parameters stored in non- volatile memory. If this test fails, a red MEMORY ERROR message is displayed and the instrument becomes inoperable. If this occurs, the unit must be returned to the factory for service. -
Page 16: Battery Status
If the rotary knob is pushed to cancel the count-down timer, the unit will remain on and continue to operate from battery power. The yellow ON BATTERY indication will be shown. Figure 18 - On Battery Indication & Shutdown Timer If aircraft power returns, the unit will automatically switch back to aircraft power and start a battery charge cycle (if all conditions are satisfied). -
Page 17: Battery Duration
If the battery fails the power-on self-test (or is in a heating cycle), it will be Red-X’ed and no backup battery capability will exist: Figure 20 - Battery Not Available Indication If the battery status icon is Red-X’ed, the battery is not available for use and loss of aircraft power will result in the unit turning off. -
Page 18: Cold Temperature Startup
Cold Temperature Startup At operating temperatures below 10° C, the battery pack requires a pre-heating cycle prior to being brought on-line. The heating time period will depend on the ambient temperature and will range from a few moments to up to a maximum of 15 minutes (cold-soaked at -20°C). During the battery heating cycle, the BAT HEATING message is shown in red and the battery icon is Red-X’ed, indicating battery operation is currently not supported: Figure 21 - Battery Heating Message... -
Page 19: Section 4 - Operational Limitations
Section 4 - Operational Limitations Operational Limitations The following operational limitations apply: • Geographic limitation: None • Magnetic field sensitivity: None • Lightning direct effects sensitivity: None • Lightning indirect effects sensitivity: Approved for catastrophic functions • HIRF Susceptibility: Approved for catastrophic functions •...
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