Length overall. 4.3/8 inch.
Base of bolting flange to top of red section 0.7/8 inch.
Width of red section 2.7/8 inch
Total depth of red section. 2.3/8 inch
Diameter of small end of nozzle. 1.3/4 inch
Nozzle prop diameter. 1.1/2 inch
Length overall of drive section front to back. 3 inch (to
end of motor shaft)
The book by Tom Gorman, 'Ship Model Builders Handbook' has a
picture of the unit set up page 103, it is shown with an
extension for the vertical shaft.