A former Hawkins & Powers airtanker (ex N52056, Tanker B20) on display at the museum in USAAC markings since 25 Oct 1981. It was initially displayed with code R-38 on the fin, but by 1995 this had been changed to BI-24. This aircraft is widely quoted as a B-18B, but that is wrong. A B-18B has a tail boom and a very distinctive bulbous nose which housed the B-18B's MAD gear. This aircraft has a regular B-18 nose and no tail boom, so it is not a B-18B anymore.
This photo was added on 6 October 2020, and has since been viewed 63 times.