ill inger ) ▁ ▁Wa ib el - But ler ▁Con cord ia ▁ ▁Walker ▁( Sam ▁Walker ) ▁ ▁Walker ▁A ria ▁ ▁Wall isa ▁( J ó zef ▁Wal is ) ▁ ▁Wall isa ▁S - I ▁( Will is ▁S . 1 ▁or ▁Wal is ▁S - 1 ) ▁ ▁No . 1 8 ▁– ▁Second ▁Polish ▁Gl ider ▁Cont est ▁ 1 7 ▁May ▁– ▁ 1 5 ▁June ▁ 1 9 2 5 ▁ ▁Wall isa ▁S - III ▁No . 1 9 ▁– ▁Second ▁Polish ▁Gl ider ▁Cont est ▁ 1 7 ▁May ▁– ▁ 1 5 ▁June ▁ 1 9 2 5 ▁ ▁Wal ters ▁( F red ▁Wal ters ) ▁ ▁Wal ters ▁Sin bad ▁I ▁ ▁Wal ther ▁( Don ▁Wal ther ▁of ▁Christ ch urch , ▁New ▁Zealand ▁) ▁ ▁Wal ther ▁Bo ff in - C off in ▁ ▁War cz ew ski ▁( J . ▁War cz ew ski ▁– ▁No . 1 6 ▁– ▁Second ▁Polish ▁Gl ider ▁Cont est ▁ 1 7 ▁May ▁– ▁ 1 5 ▁June ▁ 1 9 2 5 ) ▁ ▁Mechan ik ▁( gl ider ) ▁( Me chan ic ) ▁ ▁Warner ▁( Martin ▁Warner ▁& ▁All an ▁J . ▁Campbell ) ▁ ▁Warner ▁B rol ga ▁ ▁Warner ▁K ite ▁ 2 ▁ ▁Warner - C amp bell ▁K ite ▁ 1 ▁ ▁Warszawa ▁U cz ni ów ▁G ymn az j um ▁( Chr zan owski - G ymnas iums ▁in