you can cross reffrence the key features and stats of multiple engines at once. Give it ago! 
Duoprop propellers Type GR
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Stainless steel propellers for DPR drives.
The GR propellers are developed to handle the outstanding demand for thrust and strength placed by the new DPR high speed drive developed tor the new D4 and D6 engines. Made in stainless steel for speeds above 35 knots.
