Taken from the latest newsletter,
"We are delighted to confirm that the feature where you can own multiple ships, which we announced a few weeks ago when launching our pre-order Mercenary Pack, will be included in Beta 3 on October 28th.This will let you have any number of ships ‘parked’ at any number of shipyards, rather than having to part-exchange them.When coupled with the enhanced ship outfitting and mission systems from Beta 2, you can see how this will really expand your possibilities in Elite: Dangerous.
How you distribute your personal fleet is up to you; you could concentrate them all in one area, or have them strategically distributed around the galaxy.There are no restrictions on the number or type of ships you can have or how you outfit them other than the in-game money you need to buy them.If for example you are a die-hard Cobra fan, you can have multiple Cobras loaded out differently for different mission profiles, trading, exploration, piracy etc. as the situation or your mood demands.
Conversely if you want to experience the advantages a range of different ships bring you, you can keep every ship you buy in the game and mix and match the capability of an Anaconda, the combat agility of an Eagle, the range of an Asp Explorer and the profit from a Lakon Type 9. Or you can do any combination of these, owning multiple types of any or all ships."