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WO Report Bret tere 1979. 
British Assocation Committee on Listruments for Measuring: the Speed, of Sheps 
TM Froudes ecqperiments with Prossure Tey, 
Gmphic eeposition under three Conditions,ofpretinanary experiments to determine 
the pressure aeonding to the angle of position of the pressure hole 
The three strony lines with distinetive dots, corresponting with the thre conditions (as referenced. 
below thow the pressures as ordinates, with the angles of panition as abscaswce 
The thove fuint lines, with similar distinctive dots, show |for eomparison. ‘three burve 
each having the sane maseimum ordinate and. the sane xem asthe cormsponding strong line 
The spots or marks (+,%,0) show the results of individual: espertments 
CONDITIONS 
prnsanre Tile 
Distance ot 
le thon 
oul of tube 
Depth of 
= fimmersion of 
pressure hole, 
| Diameter ot 
all 
ies 
at doe | 
Anyles\of positian ot pressure hole 
| 
lip 
