The 15F is listed as a 1968 design but first appeared at the end of that year. The first two cars to leave the factory went to the US in October 1968, one for US Crosslé dealer Roger Barr and one for Ralph Loesser. A third car was being built in October 1968 and was due to go to the US but stayed in the UK and eventually appeared in 1970 UK series for Fred Saunders who used a Rover V8 engine.
Tim Osborne, owner of the Barr car and now also the Stanton car, is painstakingly constructing the history of all three cars and OldRacingCars.com is delighted to be able to publish the results of his work. All and any help would be gratefully received. Please e-mail Allen at email@example.com or Tim at firstname.lastname@example.org if you can add anything.
These histories last updated on 13 January, 2013 .
A note on chassis number identification
Paul Sheldon's Formula 1 Register Fact Book: Formula 5000 1968-1971 identifies the chassis number of the Fred Saunders car as 15F-70-04. Tim Osbourne's first car carries Serial Number C15F6839 and his second, acquired in 2004, carries C15F6840. According to the race-cars.com web site, the ex-Saunders car carries Serial Number C15F6942. The chassis numbers quoted above have had dashes added purely for the purpose of improving legibility.
This history was derived from the extensive work of Tim Osborne. His fuller and more detailed history can be read at http://zentekno.com/15f. Tim lists his references as:
1. Motorsport, The Constructors: Crossle, August 1985
2. 30 Years of Winning, Crossle Car Company and Ulster Folk and Transport Museum, 1988
3. Formula 5000: The A-Z, The 1969-1975 Era, by Bernard Crowley, Bookmarque Publishing 1999
4. Ray Heppenstall, telephone conversation, June 2001
5. Roger Barr, email, June 2001
6. Victor Myette, various communications, June onwards, 2001
7. Virginia International Raceway (www.virhistory.com)
8. Formula 5000, Unique Motorbooks
9. Formula Car, Season Review: F-5000 1975, March 1976
10. Motor, American secret weapon, November 25, 1967
11. Autosport, October 11th, 1968 et. al.
12. Hamilton Donaldson, email, September 2003
13. Car and Driver, May 1969
14. Competition Press and Autoweek, January 1969
Additional sources used for this page include Formula 1 Register Fact Book: Formula 5000 1968-1971 and Formula 1 Register Fact Book: Formula 5000 1972-1981.