Furuno GP-7000F Installation Manual page 14

Acceptable transducer mounting locations
DEEP-V HULL
Position 1/2 to 1/3 of the hull
from stern.
15 to 30 cm off center line
(inside first lifting strakes.)
HIGH SPEED-V HULL
Within the wetted bottom area
Deadrise angle within 15°
Suitable transducer mounting locations
8