'Hecta' Echo Sounder

"Hecta" portable electronic Echo Sounder, consisting of:- 1) Instrument case with switches and dial, 2) Remote dial, 3) and 4) two transducers, and 5) and 6) brass fittings, from the Gipsy Moth IV, sailed around the world by Sir Francis Chichester between September 1966 and May 1967, by Brookes and Gatehouse Limited, England, 1965-1966

Details

Category:
Navigation
Object Number:
1974-347
type:
credit:
Brookes and Gatehouse Limited

Parts

'Hecta' Echo Sounder

'Hecta' Echo Sounder

The 'Hecta' instrument case with dials used to measure depth in hermetically sealed case, powered by mercury cells, on teak bracket, by Brookes and Gatehouse Limited, England, 1965-1966

Measurements:
overall: 135 mm x 215 mm x 90 mm, 2.2kg
Materials:
teak (wood) , stainless steel , aluminium alloy , nylon , glass and plastic (unidentified)
Object Number:
1974-347/1
type:
Image ©
The Board of Trustees of the Science Museum
Transducer used to transmit ulra-sonic pulses

Transducer used to transmit ulra-sonic pulses

Transducer used to transmit ulra-sonic pulses, with rubber-insulated lead, by Brookes and Gatehouse Limited, England, 1965-1966

Materials:
rubber (unidentified) , stainless steel , rope , perspex and barium
Object Number:
1974-347/3
type:
Image ©
The Board of Trustees of the Science Museum
Transducer used to transmit ulra-sonic pulses

Transducer used to transmit ulra-sonic pulses

Transducer used to transmit ulra-sonic pulses, with rubber-insulated lead, by Brookes and Gatehouse Limited, England, 1965-1966

Materials:
rubber (unidentified) , stainless steel , rope , perspex and barium
Object Number:
1974-347/4
type:
Image ©
The Board of Trustees of the Science Museum
Brass fittings for transducer

Brass fittings for transducer

Brass fittings allowing transducer to be fitted to the hull, by Brookes and Gatehouse Limited, England, 1965-1966

Materials:
brass (copper, zinc alloy)
Object Number:
1974-347/5
type:
Image ©
The Board of Trustees of the Science Museum
Brass fittings for transducer

Brass fittings for transducer

Brass fittings allowing transducer to be fitted to the hull, by Brookes and Gatehouse Limited, England, 1965-1966

Materials:
brass (copper, zinc alloy)
Object Number:
1974-347/6
type:
Image ©
The Board of Trustees of the Science Museum