Technical features:
-
Direct drive (1 : 1) and gear ratios typically 1.52 : 1, 1.88 : 1, 2.10 : 1, 2.57 : 1, 2.91 : 1. velvetdrive.com+1
-
Inline or V-Drive arrangement: In the V-Drive, the gearbox is installed offset in order to position the propeller further aft; universal joints are not required. velvetdrive.com+1
-
Hydraulic operation, pressure-circulated lubrication, robustly designed internal geometry for high continuous operation. dintra.com+1
-
Front flange to SAE 7 with toothing 26T 20-40 DP. krahwinkel-kpm.de
-
Lubricant: Automatic transmission fluid ("ATF") to C3 specification; SAE 30 oil may be used at engine speeds < 3000 rpm. krahwinkel-kpm.de
Advantages over standard gearboxes:
-
Flexible reduction ratio selection, enables a larger propeller at lower shaft speed (more thrust at lower speed)
-
Compact design (especially with V-Drive) for better space utilization
-
Proven design across all series with extensive range of spare parts and documentation.
