ScaleBirds, Home of the 63% Scale Hellcat replica kitplane project.




The Verner Scarlett 7U is the newest version of 7-cylinder model of the Scarlett series. A great balance of power, weight, and size, there's a reason 7 is a lucky number. Whether a Great War replica fighter, a classic 2-seat biplane, or perhaps one of our own ScaleBirds someday, the 7 cylinders and direct drive combine to deliver the right look, the right sound, and the right power. 

The Scarlett 7U uses a throttle-body fuel system with 2 main injectors and 1 manual, evenly distributing fuel-air mix to all 7 cylinders. The engine will happily take both auto & aviation fuels. The electric starter is mounted direct to the back of the case. As with all Scarlett engines, the oil is a dry-sump gravity system with return from the lower cylinders and the bottom of the case, and ignition is controlled by computer and fired by individual coils for each cylinder. The direct drive engine has robust bearings and can effectively swing a large 86” prop at a nice low RPM range.

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