The BQ23-7 was a 1981 addition to the HO-scale diesel roster. Two
roadnames, Chessie and Family Lines (SCL/L&N), were offered. The model's tooling differs from Bachmann's previous
U36B shell and was unique to the BQ23-7 release. This model's tooling provided the basis for the 1990s Bachmann
Plus B23-7 release.
Information on Wikipedia states the GE prototype model is a variant of
the B23-7 and was built in 1978-79. The enhanced cab was a forerunner to today's wide cab locos, but a Q for Quarters
was included in the designation and not the standard W for widecab found today.
Bachmann's Family Lines models passes the prototype test with respect to
SCL ownership and the roadnumber of 5131. The Chessie System model with C&O 8226 is fiction. The CSX would
operate the ten BQ23-7's, following the combination of Chessie System and Seaboard System.
The Bachmann shell may be found in at least two variations. Originally, the model had frame
mounted couplers and a more fully filled out front and rear pilot. Later examples carved out the pilots and truck mounted
couplers were offered. The model departs Bachmann's line around 1990.