In my humble but accurate opnion
, you will have no problems. Legally, as long as there are no radio transmissions, you are fine. Technically, you can use a power inverter either going to the in seat power or a gel cell. All computers would need network cards (duh!) and you would either need to supply a router or set each comp to a static ip address. Either way, all could be done before hand so that while on the plane, the system would be 'plug and play.'
Bill B.