Studies on water movements and sediments in Southern Lake Michigan : part 1[-3] ... / by John C. Ayers.

No transmission from drogue #II was heard on 21 June. By
blind hunting (sea-return rendered the radar almost useless)
the drogue was found outside Indiana harbor. Recovery was made
at 1540 at1 41~43,c.O, 87025.2. The antenna of this transmitter
had also broken~ off and had pulled the feed-wire out with it.
After this day antenna break-off was prevented by taping
a slender! wooden block between the antenna and the drogue-staff
top.
Drogue II had travelled an apparent 8.8 miles in 25.3
houris, going an indicated speed of 0.35 mph. Drogue IV
travelled an apparent 9.5 miles during 21,95 hours, an indicated speed of 0.43 mph.
Drogue run, 4-5 October 1963 Fig.4) This run was without radios; the drogues were hunted by radar and positioned by
sextant fixes.
Surface drogues I, II, and III, plus drogues IV and V
(both at 36 feet) were set at 4151 2, 87029.01 at 1227 on
4 October,
Drogues IV and V moved 700 feet west in the interval
between 1227 and 1800 when they were taken up. Drogue V showed
evidences of hitting bottom (bends and gouges on the lower edge
of the sheet metal drag). Drogue IV stayed with V during the
entire period, but did not show evidence of hard grounding.
Because grounding may have hindered the movement of these two
drogues, they are considered suspect,
Drogues I, II, and III retained the same relative positions
throughout the period of drift. At setting I and III were each
about 50 feet from IIo At 1730, when II was fixed, I and III

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