SURFACE | 
my ca gift | 7 ; 
ot Se ey 
Rear ar ol cdr ae 
DN RE gt FBR ihe. oe 
Hang it Toe, aoe 
toy, je lb Diary We Neen pl oe 
ra rein aaa rhe be el an ciate 
SRE Yard Ay ag, 
iF wipe ix ahi qr oe Nay Se . 5 
\ ' \ rs, ; yore Maly Pall 
ny ‘ Lorry 
‘ oN wee ve , A a ¥ apa mot ve 
Pr alan 
ol al = fan , ee NN ee 
5 wi e waa ntl ! ey) 
‘ 
i" 
Beetles Ia 
= 400 ft. 
A Wars oes on Md, ~ aaa 
wy wad © Neyo / pe ee am Ae va ase ae = 
° 
VA , mn, end, o 
Na UN Oyen Vai 
—600ft. = 
0 5 
Ly 
mi. 
| ate me Arenal 
re i ieee aa 
soort. oo! |. , 
Figure 14 
0 4 8 12 16 20 min. 24 
Figure 15 
152 
