Nessie

The Evidence

 
Important Information Please Read First
All sighting and photographic references on this page are documented and can be verified through various publications.

 

Index of Reported Sonar Contacts

Sonar                                                                                       Screen


Date: 1954
Investigators: Captain Donald MacLean & Mate Peter Anderson
Type of Equipment: Messrs. Kelvin & Hughes, Marine Echo Sounder
Type of Experiment: Peterhead drifter Rival III; ordinary depth sounding
Significant Results: Inconclusive


Date: 1960 to 1972
Investigators: Miscellaneous vessels passing through Loch Ness
Type of Equipment: Depth recorders of various manufacturers
Type of Experiment: Ordinary depth sounding
Significant Results: Inconclusive

Date: 1960 June to July
Investigators: Dr Peter F Baker & Mark Westwood
Type of Equipment: Basdic Frequency 38kHz
Type of Experiment: Preliminary survey
Significant Results: None

Date: 1961
Investigators: Birmingham University Loch Ness Expedition
Type of Equipment: No Information
Type of Experiment: Vertical echo sounding from surface
Significant Results: None

Date: 1962 July to August
Investigators: Oxford and Cambridge Loch Ness Expedition, Dr Peter F Baker and team
Type of Equipment: Three Basdic Units (Simrad of Oslo, Norway) Frequency 28kHz
Type of Experiment: A. Single moving craft traverse B. Shore-based sonar gate C. Moving sonar curtain
Significant Results: Inconclusive (possibly none)

Date: 1968 April
Investigators: Birmingham University, Prof D Gordon Tucker, Dr Hugh Braithwaite, Dr D J Creasy and team
Type of Equipment: Digital Sonar developed by Birmingham University. Frequency 50kHz
Type of Experiment: Fixed sonar screen, shore-based
Significant Results: Positive

Date: 1968 August
Investigators: Same Birmingham Team
Type of Equipment: Digital Sonar developed by Birmingham University. Frequency 50kHz
Type of Experiment: Fixed sonar screen, shore-based
Significant Results: Positive

Date: 1969
Investigators: Same Birmingham Team, except cooperation with Plessey Ltd. team
Type of Equipment: Digital Sonar developed by Birmingham University. Frequency 50kHz
Type of Experiment: Fixed sonar, shore-based
Significant Results: None

Date:1969 June to August
Investigators: Vickers, Ltd., R W Eastaugh and team
Type of Equipment: Western Marine Electronics SS100; Frequency 155kHz
Type of Experiment: Mobile mode, sonar aboard Pisces submarine
Significant Results: Positive

Date: 1969 May
Investigators: LNIB Ltd., Major Eustace Maxwell, David James, Lord Richard Percy, Dr Ian Lyster
Type of Equipment: Marconi Depth Sounder Raytheon Model 729 Fathometer; Seascribe Depth Finder
Type of Experiment: Drifter Penorva mobile mode from surface craft
Significant Results: None

Date: 1969 September
Investigators: Independant Television (ITN) sponsorship. Plessey Ltd. (in cooperation with Birmingham Tucker Team)
Type of Equipment: Plessey Model 195; Frequency 10kHz
Type of Experiment: Stationary vessel in middle of Loch; 5 kilowatts of audible sonic energy projected
Significant Results: None

Date: 1969 September to October
Investigators: World Book Encyclopaedia Griffis Foundation, LNIB Ltd., Robert Love & team, Captain Don Boddington
Type of Equipment: Honeywell Scanar II; Frequency 100kHz
Type of Experiment: Mobile search mode made from surface vessel Rangitea
Significant Results: Positive

Date: 1970 September
Investigators: Birmingham University Prof D Gordon Tucker, Dr Hugh Braithwaite, Dr D J Creasy and team
Type of Equipment: Digital Sonar developed by Birmingham University; Frequency 50kHz
Type of Experiment: Fixed sonar screen, shore-based
Significant Results: Positive results not published

Date: 1970 August to November
Investigators: World Book Encyclopaedia, Carl Byoir and Associates, LNIB Ltd., Robert Love and team, Captain James Skinner
Type of Equipment: Honeywell II; Frequency 100kHz
Type of Experiment: Mobile search mode made from surface vessel Rangitea
Significant Results: Positive

Date: 1970 September
Investigators: Academy of Applied Science, Robert Rines, Martin Klein and team
Type of Equipment: Klein Associates Model MK - 300 Side Scan; Frequency 50kHz
Type of Experiment:A. Fixed mode from shore-base B. Towed mode from surface craft
Significant Results: Both Positive

Date: 1972 August
Investigators: Academy of Applied Science, Robert Rines and Team
Type of Equipment: Raytheon Depth Finder Model DE - 725C; Frequency 200kHz
Type of Experiment: Fixed surface operation
Significant Results: Positive

 

Legend of Nessie - Ultimate and Official Loch Ness Monster Site - The Evidence

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