There are 7 Waco VKS-7F aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top. The ones listed here were built between 1941 and 1942.
N31663
1942 Waco VKS-7F
Eldridge, IA
N31667
1942 Waco VKS-7F
Clayton, NJ
N31672
1942 Waco VKS-7F
Klamath Falls, OR
N31674
1942 Waco VKS-7F
Sanger, TX
N31653
1941 Waco VKS-7F
Poplar Grove, IL
N31671
Waco VKS-7F
San Martin, CA
N31679
Waco VKS-7F
Mchenry, IL