u->SetMultiheaded();

							break;

						}

						if (rvi->railveh_type == RAILVEH_MULTIHEAD) u->SetMultiheaded();

						u->SetEngine();

						break;

					case 4: // TS_Free_Car

						u->subtype = 0;

						u->SetWagon();

						u->SetFreeWagon();

						break;

					default: SlErrorCorrupt("Invalid train subtype");

				}

			}

		}

	}

}

/** need to be called to load aircraft from old version */

void UpdateOldAircraft()

{

	/* set airport_flags to 0 for all airports just to be sure */

		st->airport.flags = 0; // reset airport

	}

	Aircraft *a;

	FOR_ALL_AIRCRAFT(a) {

		/* airplane has another vehicle with subtype 4 (shadow), helicopter also has 3 (rotor)

		 * skip those */

		if (a->IsNormalAircraft()) {

			/* airplane in terminal stopped doesn't hurt anyone, so goto next */

			if ((a->vehstatus & VS_STOPPED) && a->state == 0) {

				a->state = HANGAR;

				continue;

			}

			AircraftLeaveHangar(a, a->direction); // make airplane visible if it was in a depot for example

			a->vehstatus &= ~VS_STOPPED; // make airplane moving

			UpdateAircraftCache(a);

			a->cur_speed = a->vcache.cached_max_speed; // so aircraft don't have zero speed while in air

			if (!a->current_order.IsType(OT_GOTO_STATION) && !a->current_order.IsType(OT_GOTO_DEPOT)) {

				/* reset current order so aircraft doesn't have invalid "station-only" order */

				a->current_order.MakeDummy();

			}

			a->state = FLYING;

			AircraftNextAirportPos_and_Order(a); // move it to the entry point of the airport