Mercury Command Thrust vs Standard Lower Unit

In this video, we’ll compare the standard Mercury gearcase with the Command Thrust modification (formerly known as Bigfoot). We’ll explore the differences between these two lower units, helping you navigate Mercury’s engine and gearcase lineup to decide if the Command Thrust (SeaPro) is the right choice for your standard engine. Additionally, we’ll conduct initial tests on the Command Thrust (CT) lower unit to evaluate its performance and suitability for various boating needs. ** WHY DO I NEED A DIFFERENT GEAR CASE? ** 0:00 I want a different lower unit! 1:55 Compatibility issues between Bigfoot and Command Thrust. 3:10 Outboard mounting height (see also https://chieftain.training/propeller-...) 5:00 Last look at the standard 1.83:1 gear case. 5:34 Packaging of Bigfoot / Command Thrust P/N 8M0118186. Label reads Seapro Long. Dimensions: 118x76x26 cm, weight 30kg. Sticker on the housing: Gear Housing Asy F40-60 CT 893681A11. 6:15 Visual comparison of Mercury’s standard and Command Thrust (SeaPro) versions. The standard model has a sticker: Gear Housing Asy F40-60 1.83 893680A15 (7:40). 8:02 What else to watch. ** MERCURY LOWER UNITS COMPARISON ** 9:21 Comparison of mounting dimensions between the standard and CT Mercury gear cases. 11:50 Gear shifting check on Mercury Command Thrust and comparison with the standard lower unit. 13:47 Comparison of oil plugs. 15:11 Attempt to check backlashes. Here's the process:    • The Ultimate Guide to Lower Unit Backlashes   16:16 Comparing how the Command Thrust gear case sits on the transom versus the standard gear case. 17:02 About the stud on the mid unit. 17:41 Installation process:    • Command Thrust / BigFoot Lower Unit Instal...   18:00 How the Command Thrust sits on the transom. ** MERCURY LOWER UNIT SELECTION ISSUE ** 18:26 The lower unit selection is a complicated task. 19:46 Something-Thrust – a bit of history. 20:40 Mercury’s 40-60 HP outboards – their gear cases. 22:33 Is the difference between Merc's Command Thrust and the standard lower units is just marketing and ECU? 23:40 My challenge of selection Command Thrust Lower Unit for the old Merc outboard 50 HP. 25:03 Logical reasoning – comparing parts. 28:07 Some prices: 6k€ 50HP, F50CT 1F51453GZ is unavailable in Finland, CT 60HP 9.5k€. 29:35 Seems everything is covered about the problem of selection Command Thrust vs Standard Lower Unit. Let me know in comments if not. ** TESTING THE MERCURY BIGFOOT / COMMAND THRUST (SEAPRO) GEAR CASE ** 30:18 Trolling against the wind with the Bigfoot gear case and a 14x13 Black Max propeller. 33:33 Plane speed 31 km/h at 4500 RPM. 33:54 Trolling with Bigfoot downwind another day. 34:54 Trolling with Bigfoot against wind and waves. 35:59 Wide Open Throttle (WOT) 5600 RPM at 44.6 km/h. 36:15 Modes 4620 RPM 35 km/h with fuel consumption of 11 l/h; 5360 RPM 32 km/h (WOT) with fuel consumption of 16 l/h; 4400 RPM 33 km/h. 38:03 Examining the anti-ventilation plate area (an attempt). 38:58 Waves at 4400 RPM, 32 km/h with fuel consumption of 10 l/h. 39:33 In rough waters against the wind and waves at 1200 RPM, 4 km/h. 40:17 Shot from the shore. 41:28 Summary.