And you have to adjust the balance of the propeller through the propeller drive dog and fixing nut. This propeller is made of Zinc Alloy, with gold color plate. it is made by casting,it is strong and.
eBay
T-Motor T-Hobby T9048 F3P 3D Plastic Indoor Plane Propeller for F3P Flight Lightweight Props Rc Fixed Wing Airplane Drone Motor
Aliexpress UK
1 Piece Boat Propeller. Suitable for gasoline boat, boats. Pitch Ratio：1.7. Perfect fit for twin drive set up. Color may be slightly different since different.
eBay
M5 Quad Wrench with Built in One Way Bearing Tool 1.5mm/2mm screwdriver Release Propeller Brushless Motor For RC FPV Drone
Aliexpress UK
Boat shaft shaft sleeve shaft center is made of 304 stainless steel, with high hardness, high strength, not easy to rust, smooth rotation, transmission efficiency and so on. Mainly used for all kinds of model boats, anti-real boats, modified toy boats, handmade wooden boat models and O-boats, V-boats and other professional boat models.
eBay
NEWEST HOTRC CT-6A 2.4GHz 6CH 6 Channels One-handed Control Radio Transmitter Remote Controller For RC Toy Car Boat Drone Parts
Aliexpress UK
Features: 50mm scroll fan wheel is 6 blades, 60mm scroll fan wheel is 11 blades, 70mm scroll fan wheel is 7 blades, 80mm scroll fan wheel is 9 blades, 2mm aperture, color plastic material. A variety of colors are available with bright colors, which is very suitable for making various handicrafts.
eBay
1Pcs RC Simulation Boat Dynamic Radar Shaking Rod Photosensitive Resin 1.5V-1.8V Motor for Ship Model Making Parts Fittings
Aliexpress UK
TFL 42mm 2 Blade Copper Propeller 1.4" Pitch (4.76mm,3/16"). Running a 4mm Shaft?.
eBay
RDS3115MG 17KG Dual Shaft Servo Large Torque 180/270 Degree Biaxial Digital Servo for RC Model Car Boat Airplane Robot Arm
Aliexpress UK
This drive shaft is suitable for all kinds of model boats, anti-real boats, modified toy boats, handmade wooden boat models and O-boats, V-boats and other professional boat models. Shaft length 10CM/shaft sleeve 05CM.
eBay
Waterproof X-Team 1/8 1/10 RC Car Brushless Motor 3650 3660 3665 3670 3674 Brushless Motor for Monster Racing Off-Road Boat
Aliexpress UK
1 Pair RC Boat. Easy to Use: easy to install, stable to use and not easy to fall off.
eBay
RCXAZ 9g Plastic/Iron/Copper Gear 1.6KG Digital Servo for RC Fixed-Wing Airplane Robot Car Boat Duct Plane Small Servo Motor
Aliexpress UK
This propeller is made of nylon, It's DIY spare parts, used for RC boat electric toy boat model. Propeller type: CW/. 10Pairs 2-Blades Propeller (10PCS CW +10PCS ）. Quantity: 10 Pairs(20pcs). Note: The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. ).
eBay
AEORC 1.7G Digital Servo High Speed High Torque X-Servo with 1.00 Pin Plug with Micro Receiver For RC/Helicopter/Car/Boat
Aliexpress UK