Max Dingfelder’s Maximotor B-4 In-line Engine


¬†¬†Maximotors were built by Max Dingfelder in Detroit, Michigan, around 1911 to 1913. Models included four- and six-cylinder in-line and V-8 water-cooled engines. This 52 kw (70 hp) Model B-4 Maximotor was the last of several that powered Thomas S. Baldwin’s Red Devil III aircraft. Maximotors were used on aircraft such as those built by Wright, Curtiss, Bleriot, and Farman and Antoinette.

Date: 1912Dimensions:

Length 104 .1 (41.0 in.),

Width 40.6 cm (16.0 in.),

Height 273.7 cm (9.0 in.)

Inventory Number: A19500094005


Physical Description:
Type: In-line, 4 cylinders, liquid-cooled
Power rating: 52 KW (70 hp) at 1,500 rpm
Displacement: 7.0 L (430 cu in)
Bore and Stroke: 12.7 cm (5.0 in) x 14.0 cm (5.5 in)
Weight (wet): 118 kg (260 lb) (3.71 lb/hp)
Condition: Appears complete; on stand.


About andy dingfelder

Andy is a CISO/CTO in the fintech sector with over 20 years of experience in Software Delivery and Team Leadership in multiple industry domains. Master's Degree (MPA) in Public Administration Information Systems and over 10 years of board governance experience for multiple organisations. Full bio is available at: and links available at or follow him on Twitter at Andy lives in the Wellington region, New Zealand with his wife and two daughters.
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