Page 1: Table Of Contents
Wiring diagrams Pin assignments of connectors Calibration chart for altimeter of GP940 Annex: IGC approval of GNSS Flight Data Recorder ZANDER GP940 Warning: The recorder box must not be opened! A security feature will inhibit any valid recording after box was opened! The standard two year warranty is expired when box was opened! GP940E 01/97 27.02.97...
Page 2: Introduction
1. Introduction: The flight data recorder consists of one housing with these functions inside: GPS receiver barometric altitude sensor clock electronics for recording and storing data vibration sensor (for glider with engines) one rechargeable battery for data transfer between recorder and IBM compatible PC, to cover short supply power breaks and for data retention.
Page 3: Installation Into Glider
2. Installation into glider: The GP940 recorder should be mounted removable; a mounting fixture is delivered with the recorder. It is recommended to locate the recorder at a place where the audio signals of the recorder can be noticed. When the recorder is used in connection with a glider computer SR940 or SR820, the audio signals are not that important.
Page 4: Turning On The Gp940
3. Turning on the GP940: After turning on supply power to the recorder there is an acoustic signal from the recorder to show that it is operating: = flight data recorder active The red light (light emitting diode) shows: = no GPS reception After about 2 minutes (glider away from buildings, GPS antenna unobstructed) the light emitting diode changes to: = GPS reception...
Page 5: Connecting Gp940 To Pc
FDR serial number and the flight number of the day: 67AZB251.ZAN means: 1996 / July / 10 / ZANDER / B25 / flight number 1 (numbering system: 1...9,A...Z) To avoid that flight data files are changed later for cheating, there is a safety feature included in every flight data file from GP940.
Page 6: Charging Internal Battery Of Gp940
against this additional information; this shows the validity of the recorded data. By the way, only a part of the control information is used for this check on the PC, another part can be used at authorized places to perform another safety check. To view a flight on the screen, program WinFDR must be installed.
Page 7: Entering Data From Glider Computer Sr940
The light emitting diode informs about the actual charging program step (every 2 seconds): = charging battery (for 14 hours) = battery was charged for 14 hours without interruption; charging battery continues The older FDR version 1.16 has two additional steps in the beginning when charging starts: = charging battery (for one minute) = discharging battery (for about one hour) Charging also should be done if the internal battery was discharged by other means.
Page 8: Preparing Waypoints And Routes For Sr940 / Gp940
The route selected on text page 11 of SR940 can be transferred to 21:FD-Recorder GP940 as a declared task . This tranfer must be done before takeoff 1= task to be valid. The turnpoints are selected on text page 11 only; selection for 21.05.96 of turnpoints must be done according to FAI rules in this sequence: 00= takeoff at:...
Page 9 The SR940 glider computer has a memory for 990 waypoints. The GP940 offers the possibility to carry waypoint lists and routes to the glider. At the glider they can be transfered to SR940. Organization of waypoint list (recommendation): 001...200 200 Turnpoints 400...899 500 Airfields or with airspace information:...
Page 10: How To Use Gp940
8. How to use GP940: Flight data recorder ZANDER GP940 is approved by FAI since November 10. The original text of the approval can be found at the end of this manual. Here are some suggestions for competition organizers and pilots and for certification of FAI flights: Flights during central competitions: Before takeoff waypoints must be loaded into SR940 / SR920D.
Page 11 Before takeoff there should be done a written declaration signed by an official observer. This flight declaration must contain: date of the intended flight full name of the pilot type of glider, competition class, glider registration number used GNSS flight data recorder: manufacturer, type, serial number The declared task can be written on the same paper or the flight declaration is marked with task as written into flight data recorder .
Page 12 Name of the pilot Signature of the pilot Type of glider Registration number of glider Manufacturer and type of flight data recorder = ZANDER GP940 Serial number of flight data recorder Geodetic datum used = WGS 84 Task: (Name and coordinates)
Page 13: Technical Data
9. Technical data: mechanical dimensions: 92 x 50 x 200 mm weight 750 g external power supply 10...14V / 170mA supply voltage for charging 13...14V / 40mA operating temperature -20...+60°C GPS receiver 8 channel geodetic datum used WGS-84 Flight data recording: recorded signals time, barometric altitude, GPS position, GPS altitude DOP, 2D/3D, engine running sensor...
Page 14: Wiring Diagrams
10. Wiring diagrams: GP940 with SR940 (new version) GP940E 01/97 27.02.97...
Page 15 Wiring diagrams: GP940 with SR940 / SR820D (upgrade version) GP940E 01/97 27.02.97...
Page 16: Pin Assignments Of Connectors
11. Pin assignments of connectors: GP940E 01/97 27.02.97...
Page 17: Calibration Chart For Altimeter Of Gp940
12. Calibration chart for altimeter of GP940: 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 one year or a calibration must be done within one month after the flight.
Page 18: Annex: Igc Approval Of Gnss Flight Data Recorder Zander Gp940
Software: Zander file DATA-ZAN.EXE for downloading flight data from the FR and, through its menu, for con- version of each Zander format (*.ZAN) flight data file to a separate file in the *.IGC ASCII format. Also CONV- ZAN.EXE for the conversion function only. These two files are intended to be copied by NACs for use by OOs on a floppy diskette without the need to access a hard disk.
Page 19 Tel: +44 1420 564 195; Fax: +44 1420 563 140; email: ian@ukiws.demon.co.uk Annex A to IGC Approval Dated 10 Nov 1996 NOTES FOR OWNERS AND PILOTS - PART OF IGC APPROVAL FOR ZANDER GP 940 GNSS FR GP940E 01/97 27.02.97...
Page 20 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 10 Nov 1996 NOTES FOR OFFICIAL OBSERVERS AND NACs - PART OF IGC APPROVAL FOR ZANDER GP 940 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 An ENL (Engine Noise Level) value of over 250 indicates engine running or the vibration of takeoff or landing. Consistently lower ENL values indicate gliding flight. Calibration of Barograph Function. The FR can be calibrated in an altitude chamber in the same way as a drum barograph.

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