154 S. Schuster and H. Schwanecke 
Si] S585 | Sess pees | enae fees | acon ddras | eta Sane ecu | Seve tea Cote | eben | ante | ezer | pepe bend paca) aes k rel Reed i 
copaladeeteteahe = sel ed sed ee : fp) CREE ETS 
irae SA eis | fees lpoea tpsaedoees erate en 3 
ea eee ie ' aieeae 5 ieee m 
! | ee 
Bee sc 
Hoon fale, 
eae aa EEE Fee 
Pecceecemees oe 
Sse EaICaat 
Fig. 7. 
ef 
a0) coer jdeuigeeetarere BIR Pee 
ee pec eee = 
fl ft 0 Ea ee Ea ct eed Brel 
Lift coefficients of the upper sides 
of the flat dihedral foils 
