7-Blade Brass Ship Propellers – ultra-quiet, efficient, perfect for RC submarines

The “7-Blade Brass Ship Propellers” category at Ship Models Shop offers propellers designed for silent running and efficient thrust delivery. With seven blades, the flow is smoother, vibration is minimized, and noise is reduced. This makes them an excellent choice not only for scale surface vessels but also especially for RC submarines, where stealth and smooth operation are essential.

Advantages of 7-Blade Brass Propellers

• Ultra-quiet operation – minimized noise, ideal for submarine use

• Stable thrust – smooth propulsion above and below the surface

• Efficient flow – reduced turbulence, improved energy efficiency

• Durable & authentic – brass construction for longevity and scale realism

• Precision design – stable running under demanding conditions

Technical Features

• Material: brass

• Blade count: 7, precision-engineered for smoothness

• Size range: approx. 30–60 mm for different scales

• Thread: e.g. M3, M4 – fits common shafts

• Rotation: right-hand standard; left-hand available upon request

Buying Guide

1. Model type: submarines and scale models benefit the most from 7-blade design

2. Diameter: select according to hull size and motor performance

3. Pitch: adjust for thrust vs speed balance

4. Thread & fit: ensure proper shaft match for vibration-free running

Conclusion

7-blade brass propellers combine quiet performance, efficient propulsion, and a scale-accurate look. They are particularly well-suited for RC submarines, where smooth, silent running is crucial.