I bought this 1979 Bally game from Gooch for 150 bucks as a project game. I also got a very nice loaded playfield from him for another 75 bucks. All of the parts are there and the playfield in the game has the normal wear which I will attempt to touch up before I consider doing a playfield swap. The spare playfield has almost no wear at all but would require a playfield swap due to wires being cut so it wouldn't be a simple swap with the current playfield. Basically, everything would have to be stripped off the extra playfield and moved over from the current playfield. After thinking about it, I may decide to just touch up the current playfield and clear-coat it.
Supersonic is a solid state 4-player game that was produced by Bally in October of 1979. There were 10,340 games produced and the game features 2 flippers, 3 pop bumpers, 2 slingshots, one 5-bank drop targets, 4 stand-up targets, 1 kick-out hole, a roll-under spinner, and a right outlane ball return gate. The game was designed by Greg Kmiec with artwork by Kevin O'Connor. The game design is identical to Bally's 1976 Star Ship EM game. The backglass features Concorde with "Bally" on the tail fin. The artwork also shows Concorde flying from the Eiffel Tower and Big Ben (Clock Tower) towards the Statue of Liberty. What makes this game rare is that it featured Concorde and the appeal of supersonic flight and the end of an era.
Note that Concorde began commercial flight in January of 1976 with the final flight from New York to Heathrow occurring in November of 2003. The only crash Concorde experienced occurred in July of 2000 when taking off and running over a piece of titanium that fell off of a DC-10. The metal punctured a tire which exploded and damaged other parts of the jet ending in a fiery crash into a hotel in France shortly after take-off.
Concorde had some design changes to avoid a similar problem and made another flight in July of 2001 from London to New York. The cost of maintaining the aircraft, low passenger numbers, bad press from the crash in 2000, and the tragic World Trade Center terrorist attack on September 11th, 2001, led to British Airways announcing the retirement of Concorde in 2003. It also didn't help that the airlines discovered they could make more money flying first class passengers subsonically. An amazing bit of trivia is that the fastest flight Concorde made from London to New York occurred in 1996 which took 2 hours, 52 minutes, and 59 seconds from takeoff to touchdown. That's incredible when you consider that a flight on a 777 takes nearly 9 hours. I was in Paris in December of 1989 and got to see and hear Concorde take off one night. It was very loud and very easy to see with its large engines lit at night.
(click picture to enlarge)