AS J.T. says the fallacies of 'Certification'..
The european countries(northern)flew the DC9 off 'wet' runways for years with wet data in the manuals--DC never did any 'wet' testing,not required by FAA,results were 'analysis' ..Although the DC9's are now gone Canada never did have wet info.....
JAR stipultes the Height at the end of the take off distance on a wet runway to be 15'...As the rules say only 50% of the distance need be over runway enroute to the screen-what height does one really cross the lights????remember the screen is at the end of the clearway....
