you can cross reffrence the key features and stats of multiple engines at once. Give it ago! 
Duoprop propellers Type D
Filter
The aluminium propeller for all gasoline and diesel engines using the DPS drive. The D-series is replaced by the I-series. The D series front and rear propellers are only avalible as spare parts for existing installations.
Note! Do not mix D series with I series on the same drive. For twin installations use only the same propellers.
