Ægir - 15.04.1970, Page 10

108
ÆGIR
FLOW DIAGRAM FOR COMPUTER SIMULATION
OF TRAWLER OPERATION
DATA INPUT ■
Vessel1 general cnorocterlstics, fuel consumption rates, initlol cost, amortization scheme,
operating costs.
Ssippen highliner or average, declsion parometers governing shifting, dodging,
and grounds fished.
Environment: general parameters governing weather and catch rates.
INITIALIZATION -
STEAMING OUT -
STEAMING HOME -
ANNUAL STATISTICS -
OVERALL STATISTICS"
Empty hold, fill fuel tank Decide , take on ice and supplies. ground.

Sample the weather, compute steaming time, subtract fuel used.

| Begin Fishing. [
/ Must stored
ycs (cotch be token
to portp
Enough fuel
left to
continue
fishing ?
Is hold
full yetp
< m/ catch ySL \ occeptablep/
L
Generate Weather / 15 if { no / worthwhile
dodging
necessaryp
Generate
o
dodge time.
Generate a
haul time and a
catch. Record
the catch.
Cnoose a
ground and
steam to it.
Subtroct fuel.
Calculate
a lay time.
Subtract
fuel used.
/~T. '
5-/ laying
\necessary p
Subtract
hold space
used.
Calculate a
steaming time,
and fuel used.
Generate inport
time. Determine
docking costs.
Determine
value of catch
8 net trip costs.
Determine trip profit and print
statistics.
Determme and print out annual
operating Statistics. n
<Hos one \_j
year elopsed'?/
Has enough
time elapsed
for simulation
Compute and print out
overall vessel statistics.
-<
Mynd 1.