BFE, Best For Ever.

Quiet, Effiecient, Light-Weight.

Simple version at here.
Just deleted 10 engines and nothing simplified.

Basic Performances

(data for single one Engine)

Radius: 4.5m / 3.9m(Fan)
Length: 9.4m
  Mass: 2,520kg
Thrust: 384100N
Bypass Ratio: I dont know exactly how to calculate this pardon me pls
Part Count: 52(Including a pylon)

Controls

Throttle-Thrust
Brake-Reverse Thrust

Notice!

Due to the HubHead-FanRPM Related design, if mirrored or cloned, the engines will work strangely.
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Hence, including the prototype, 11 stand-alone BFE350 engines are provided. 11 should be enough.
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To save one of the engines as a Sub-Assembly, you could grab its pylon, or the hollow fuselage connected to it.
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If you desire the same size as BFE300, scaling it by 1/3(0.33333...) with Fine Tuner would be a good choice.
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Again, please note that the best way using it is to save as a Sub-Assembly and reuse, instead of simply mirror it in the designer, which will cause a lot of trouble and ruin your joy.

Have fun.