https://depot-numerique-cnrc.canada.ca/eng/view/object/?id=5ab63814-4f45-42c9-a497-7b26a5615d76
De Clerg Propeller in Wind Tunnel 002 - NRC Digital Repository - Canada.ca
De Clerg Propeller in Wind Tunnel 002
wind tunnel
https://nrc-digital-repository.canada.ca/eng/view/object/?id=dc08677c-4a60-4edb-b3bf-099205abd3bb
De Clerg Propeller in Wind Tunnel 001 - NRC Digital Repository - Canada.ca
De Clerg Propeller in Wind Tunnel 001
wind tunnel