Ships
Ships
Photo
____ Photo ____
description
placeSeen
dateSeen
image
Ship
____ Ship ____
name
yearBuilt
grossWeight
description
kind
category
Ship->Photo
seen
Change
____ Change ____
year
name
Ship->Change
history
Builder
____ Builder ____
name
website
abbreviation
Operator
____ Operator ____
name
website?
abbreviation
Operator->Ship
operator
builder
builder
buildNumber?
placeBuilt?
builder->Ship
builder->Builder