History’s hulking metal shells draw crowds of thousands each year at Castle Air Museum, triggering the imagination of visitors wondering whose faces once stared out from the cockpits of the old warbirds. For most, their daydreams are nothing more than flights of fancy, no pun intended. But a few believers in the paranormal think a face is still staring from the cockpit of a B-29 Superfortress called “Raz’n Hell,” an aircraft made up of parts of three B-29s gathered at the Naval Weapons Center in China Lake in 1980.“I’d like to think of myself as an open-minded person and I know there are a lot of things we can’t explain,” said Tom Cavallero, former crew chief of the plane. “There are a lot of interesting planes here and this one has its celebrity in the fact that it’s haunted.” Soon after “Raz’n Hell” was pieced together, workmen and museum officials began relating stories about spooky happenings in and around the old plane. And whether or not you’re a believer, word about the plane has made it famous. “People have actually stopped and asked if this is the haunted plane, so the story is out there,” Cavallero said. Karen Machen, executive assistant at the museum, said a man working to restore the aircraft got a little spooked after asking his friend to hand him a wrench. “He thought his partner handed him the wrench, but he was somewhere else, smoking a cigarette,” Machen said. The man Machen thinks may have handed the wrench to the workman is “Arthur,” a ghost whose name was said to have been spelled out one night long ago during a session on a Ouija board.