Lundstrom says the B - 17 sighting was 30 mi ( 30 mi ; 48 km ) from the cruisers .
Cressman says 60 nmi ( 69 mi ; 110 km ) .
Lundstrom says the B - 17 sighting was 30 mi ( 30 mi ; 48 km ) from the cruisers but Cressman says 60 nmi ( 69 mi ; 110 km ) .