This is a rule set for WW2 naval combat written in French.
This is not a classic wargame, as it has no mapboard or counters, but cards for ships. The rules are very simple. Basically, blank sheets and pencils are the only things needed to start playing. Miniatures are not needed to play but can be used.

The main difference with other naval rules is that Amirauté (Admiralty) is not purely a tactical game. Although it has detailed guns rate of fire, penetration, rules for aircraft, naval bombing for operational scenarios and campaign games are included. For example, you can play the exactly same scenarios as Avalon Hill's Flat Top, not only the battles.

What you need to play:

rules
ruler, protractor, pencil, eraser
two 10-sided dice

A referee is strongly recommended for a better gaming experience.

Naval units: each ship is described on a card with its size (length, width), armor, detailed weaponry (diameter, range), max speed, defensive value (calculated from tonnage, vertical and horizontal armor, age).
Air units: air units are defined by their max speed, range, weaponry and defensive value.

Combat:

Combat is resolved with tables.
Combat against ships is resolved with a probability of impact check, then computing the number of hits, and finaly damage.
Torpedoes have length, speed, angle and distance parameters.
Anti-aircraft fire is handled globally for air to naval attacks and air to ground strikes.
Damage can have effects on speed and attack capabilities.

Scale:

strategic moves : 1 cm = 10 km
tactical moves : 1 cm = 100 meters
miniatures (if used) : 1/3000
strategic turn : 1 to 4 hours
tactical turns : 5 minutes

Journal 29: Interactive Book Game