Came across this in 1980 BHW stud book from an advert placed by Wilson Noble -" Black Rocket - 1976 - 1st club, 1st fed, only bird on day. 1st North Sec, 11th open SNFC Rennes, 663 miles, 7953 birds, clocked on day 17 hours 40 minutes on wing. In 1975 Black Rocket - 1st Champ Club, 2nd FIFC, 9th fed Avranches, 624 miles, 17 hour 25 minutes flying time " Does not state if the 1975 performance was flown on the day, but nevertheless an outstanding hen.