Installation manual
Simrad38-7
Transducermountedonadropkeel
Theuseofadropkeelwiththepurposeofstabilisingthevessel
iswellknown.
Adropkeelisalsoasuperiorplatformforechosounder
transducers.Suchinstrumentkeelshavebeenbuilt,mainlyon
researchvessels,oftenprotrudingasfarasthreemetersbelow
thehull.Atthatdepth,thewaterisfreeofairbubblesupto
veryhighseastates.Thevesselisthenabletoperformreliable
acousticmeasurementsinopenseaalargerpartoftheyear.
(CD017012D)
B
C
A
AInstrumentkeelshaft
BLoweredposition
CBottomview
20
130003/D