Table:
text: List of active French Navy ships
Auxiliary fleet (Bâtiments de soutien)
Auxiliary fleet (Bâtiments de soutien)
Class_ Type_ Ships Displacement Note_
Rari class Tug supply vessel A635 Revi 1,450 tonnes 
Malabar class Ocean going tug A664 Malabar , A669 Tenace 1,440 tonnes Ice-breaking capabilities to 2 meters level ice
UT507 class Salvage Tug Abeille Flandre , Abeille Languedoc 1,500 tonnes Chartered
UT515 class Salvage Tug Abeille Bourbon , Abeille Liberté 4,000 tonnes Chartered
UT710 class Support, Assistance, Pollution control vessel Argonaute , Jason 2,100 tonnes Chartered, configured to accommodate NATO Submarine Rescue System
UT711 class Support, Assistance, Pollution control vessel Alcyon , Ailette 2,000 tonnes Chartered
 Training ships VN Partisan 2,250 tonnes Chartered
 Training ships VN Rebel  Chartered

Question: How many of the classes are salvage tugs in the list of active ships in the French Navy?

Question: From the list of active French naval ships, which class has the largest displacement in tons?

Question: What is the number of displacement tons for a Rari class tugboat from the list of active ships of the French Navy?