No T-C, 'laminar flow' in WW2 was an 'aspirational' idea, if not a downright 'marketing' term.
& sure, the RAE's advice re 'thick' wing profiles was found to be a folly - when the higher available power
on aircraft such as the Beaufighter & Typhoon - failed to make the expected speed, due to excess drag rise.
Accordingly Camm/Hawker utilized the 'high speed' NPL profile for the Tempest, to good effect, & a profile
that just happens to meet the criteria deemed to be typical of 'laminar flow', ( as did the Heston Racer).
Interestingly, Mitsubishi also utilized a Nippon developed 'laminar flow' type profile for its advanced-aero Raiden.
See below, a link to period British analysis of airframe structure drag/stress factors, courtesy of Neil Stirling;
http://www.ww2aircraft.net/forum/thread ... ysis.42716
Dr Moreau sez..
"Who breaks the law... goes back to the House of Pain!"