FIN

Both loops built-in at top of fin surrounded by wooden shields

Not to scale

F-A Loop. A hugh amount of SWG copper covered

An enormously

wire wrapped left to right on wooden forma, in area

P-S Loop

exaggerated drawing

screened by wood and not metal. Free flood.

Same as for

to show the VLF receiving

F-A Loop but

aerial

wrapped top to

bottom in this

picture.

In nearly five years we had one small

defect on the cathode follower in the

wireless office and no maintenance was

necessary on the loops themselves.

casing level

pressure hull level

wireless office

VLF and LF

Receivers