Could you use a single Repair NPC to repair your ship if you did not have the skills? I do not mean by using a shipyard or other repair facility.

You need the NPCs and a facility/station to do the repairs in. Read the rules again, as you probably missed that bit.

Thank you, but I have another question...

Is there anyway to repair without a station/shipyard ect?

Yes - vehicles can be repaired in certain facilities on the ground.

Thanks again, but I seemed to have miss worded my question. So lets have another go and sorry if this is getting anoying or anything.

Can you repair without the help of any kind of facility?

Not yet.