1920 hp R-2800
This one appears to have a jet engine in the tail.
Information from Joe Baugher's web site
66599 previously 41-35542. Became N171E ca 1948. Registration N3E later allocated but NTU, remained N171E. Became N501T Jul 7, 1952, but reported May 1955 and Sep 1955 still carrying N171E. Converted to B-26C-T executive transport. Reverted to N171E Mar 26, 1957, but aircraft reported Jul 1959 carrying N501T. Scrapped and SOC May 18, 1965.
Aeroplane Photo Supply No. 3942
