B&G H2000 Pilot *DISCONTINUED* - Manual (Page 111)

HB-0845-06 111
Heading - 180
˚
Heading
Course
Markers
Leeway Angle
Back Bearing
Figure 13 - Leeway Angle Measurement
The idea is to sail on a steady course and drop markers*
over the stern at regular intervals, the angle between them
and the centreline of the yacht is measured with a hand-
bearing compass, and hence leeway angle is measured.
Whilst this is happening the boat speed and heel angle
should be noted at intervals and an average calculated.
These values can then be used to calculate the leeway
coefficient from the following expression.
K = L x Bs x Bs
H
Obviously the flatter the water and the steadier the breeze
the more likely this is to be successful, but even in perfect
conditions it is difficult, to say the least. Once you have the
leeway coefficient 'K' then it is entered into the system
under:
NAVIGATE
→
LEEWAY, CALBRATE
→ → → →
CAL VAL1
*please collect your markers after calibration!