Page 1: Table Of Contents
Version 11/01 GPS FLIGHT DATA RECORDER ZANDER / SDI GP 941 MANUAL content: Introduction Installation into glider Turning on the GP941 Connecting GP941 to PC Entering data from glider computer SR940 How to use GP941 NMEA Output Technical data Wiring diagrams Pin assignments of connectors 11.
Page 2: Introduction
1. Introduction: The flight data recorder GP941 (= FDR , recorder ) consists of one housing with these functions inside: GPS receiver barometric altitude sensor electronics for recording and storing data microphone circuit for gliders with engine a Lithium battery 3.6V for data retention a 9V battery for data transfer between recorder and IBM compatible computer (= PC ) Externally connected are GPS antenna, 12V / 120mA power supply, a marker button and the connec- tion to SR940 glider computer.
Page 3: Installation Into Glider
2. Installation into glider: The GP941 recorder should be fixed to the glider, so that it can be removed easily. If a glider computer is used with the recorder it is not necessary to see the blinking LED or hear the beeper of the recorder during flight.
Page 4: Turning On The Gp941
3. Turning on the GP941: After turning on supply power to the recorder there is an acoustic signal from the recorder to show that it is operating: 2 x beep = flight data recorder ready for recording The red light (light emitting diode, LED) shows: = no GPS reception After about 2 minutes (glider away from buildings, GPS antenna unobstructed) the light emitting diode changes to:...
Page 5: Connecting Gp941 To Pc
4. Connecting GP941 to PC: The PC used must be an IBM compatible PC: WINDOWS 95 or later for Windows programs DOS 3.0 or later, 512 KB memory for DOS programs Most of the programs on the CD-ROM delivered with the GP941 are Windows programs; there are some DOS programs for special use.
Page 6 Important for FAI flights: WinGP can also store flight data in IGC format or can convert ZAN files to IGC files. However these IGC files cannot be used for FAI purposes anymore. To get IGC files as required for FAI purposes the ZAN files produced by WinGP must be converted to IGC format by DOS program CONV-ZAN.EXE.
Page 7: Entering Data From Glider Computer Sr940
5. Entering data from glider computer SR940: If the recorder is connected to glider computer SR940 and if the SR940 is equipped with the correct program version, data can be exchanged between recorder and SR940. The SR940 has a special text page to communicate with the GP941; this text page has several sub- menues: The route selected on text page 11 of SR940 can be transferred to 21:FD-Recorder...
Page 8: How To Use Gp941
If program version 2005 or later is loaded into SR940 and GP941 has version 2.04 or later, then the name of the pilot can be written from SR940 to GP941. Up to three names are stored within SR940 and can be selected by number #1 to #3. Transfer of name should be done before takeoff, as this will begin a new flight data file within GP941.
Page 9 Name of the pilot Signature of the pilot Type of glider Registration number of glider Manufacturer and type of flight data recorder = ZANDER/SDI GP941 Serial number of flight data recorder Geodetic datum used = WGS 84 Task: (Name and coordinates)
Page 10: Nmea Output
Barometric pressure (QNH) at takeoff time Elevation at takeoff Takeoff time Landing point Landing time Barometric pressure (QNH) at landing time Name and signature of official observer Valid calibration table of flight data recorder altimeter Flight data must be transferred to PC in presence of an official observer. Both ZAN and IGC files are required for FAI flight validation.
Page 11: Technical Data
Pin 8 external power supply for palm PC 8. Technical data: mechanical dimensions: 76 x 33 x 109 mm weight 300 g external power supply 10...14V / 120mA operating temperature -20...+60°C GPS receiver 12 channel geodetic datum used WGS-84 Flight data recording: recorded signals time, barometric altitude, GPS position, GPS altitude DOP, 2D/3D, engine noise level...
Page 12: Wiring Diagrams
9. Wiring diagrams: GP941 with SR940 (new version) GP941E 11/01 02.11.01...
Page 13 Wiring diagrams: GP941 with SR940 / SR820D (upgrade version) GP941E 11/01 02.11.01...
Page 14: Pin Assignments Of Connectors
10. Pin assignments of connectors: GP941E 11/01 02.11.01...
Page 15: Calibration Chart For Altimeter Of Gp941
11. Calibration chart for altimeter of GP941: According to FAI rules an altimeter calibration chart of the recorder must be used for altitude evalua- tion of recorded flights. If altitude differences are relevant to a claimed flight, the calibration chart must not be older than two years or a calibration must be done within one month after the flight.
Page 16: Annex: Fai Approval Document
When the new version WINGP940.EXE is ready, this new Windows program may be used instead of the DOS program. Note: the DOS programs listed above are also valid for the old ZANDER GP940 flight recorder; so these programs replace the old DOS programs made for GP940.
Page 17 (Note that Zander is responsible for electronic design, FR firmware, PC software and IGC approval matters. Streamline Digital Instruments (SDI) of Staudach, Germany, is responsible for mechanical engineering and production. For matters concerning this approval for the GP941, contact should be made with Zander in the first instance, as shown above).
Page 18 6 September 2001 for the V18 DATA and CONV programs, 11 October 2001 for the VALI program. These program files are backward compatible with the earlier Zander GP940 recorder. Free availability. The DATA, CONV, and VALI files are copyright of the FR manufacturer but are freeware. The latest versions may be obtained from the IGC GNSS Internet site for software or through the IGC/GNSS site through a link.
Page 19 Sealing of data ports and plugs: no present requirement, but no attempt must be made to pass unauthorised data into the FR. Check of Installation in the Glider. There must be incontrovertible evidence that the particular FR was present in the glider for the flight concerned.
Page 20 Annex A to IGC Approval, dated 30 October 2001 NOTES FOR OWNERS AND PILOTS PART OF IGC APPROVAL FOR ZANDER GP941 GNSS FR To be read together with the main terms of approval to which this is an Annex. It is recommended that a copy of the approval document including annexes is kept with the equipment concerned, for the use of pilots and Official Observers.
Page 21 Annex B to IGC Approval dated 30 October 2001 NOTES FOR OFFICIAL OBSERVERS AND NACs - PART OF IGC APPROVAL FOR ZANDER GP941 GNSS FR To be read together with the main terms of approval to which this is an Annex. It is recommended that a copy of this approval document is kept with the equipment concerned, for the use of pilots and Official Observers.
Page 22 Checking the Installation of the FR. As soon as practicable after landing, an OO shall inspect the installation of the FR in the glider (including any sealing to the glider), so that this can be compared to the check described in para B1.1 above.
Page 23 ENL during launching. During winch and aerotow launches, higher average ENL values are to be expected than when soaring (B4.3). Up to ENL 180 for winch and 160 for aerotow have been recorded. During the ground roll, short-term higher values up to 348 have been seen, probably due to wheel rumble. ENL during engine running.
Page 24 GPS receivers operating without a local differential beacon The altitude accuracy from satellite-based systems will not be as good as accuracy in lat/long, because satellite geometry is not as favourable for obtaining accura- te altitude fixes compared to horizontal position. This effect may be increased by less-than-ideal antenna posi- tioning in some gliders.

ZANDER SDI GP 941 Manual

Quick Links

Related Manuals for ZANDER SDI GP 941

Summary of Contents for ZANDER SDI GP 941

Table of Contents