EmDrive & AwDrive - Hand made Ak-Engine vs Commercial DC Motor 1

[MidiMusicKH]

DC Motor:
- with propeller
- with rotary axis,
- with a brush,
- have electric commutator,
- need lubrication,
- need cooling,
- can not stand water,
- will wear out.
AkEngine:
- no propeller
- no rotating axis,
- no brushes,
- no electric commutator,
- no need lubrication,
- no need cooling,
- can withstand water,
- will not wear out,
* The structure is very simple, easy to manufacture, hard to fault/malfunction.

DC Motor:
- có chân vịt (cánh quạt),
- có trục quay,
- có chổi quét,
- có cổ góp điện,
- có cần bôi trơn,
- có cần làm mát,
- không chịu được nước,
- sẽ bị mài mòn.
AkEngine:
- không chân vịt (cánh quạt),
- không trục quay,
- không chổi quét,
- không cổ góp điện,
- không cần bôi trơn,
- không cần làm mát,
- có chịu được nước,
- không bị mài mòn,
* có cấu tạo rất đơn giản, dễ chế tạo, khó bị hư hỏng/trục trặc.

[MidiMusicKH]

Two ships of different sizes, but the same total weight (130g).
Ship No.1 is a commercial product, with 3V DC Motor.
Ship No.2 is a product hand-made by Me, with Ak-Engine.
---
Speed of the Ship No.1:
- P = 3.0 Watt, V = 7.7 seconds / round.
Speed of the Ship No.2:
- P = 2.2 Watt, V = 6.0 seconds / round.
- P = 8.5 Watt, V = 4.5 seconds / round.

[MidiMusicKH]

Theoretical calculations:
(Tính toán theo lý thuyết)
P = 2.2 Watt, F = 260 mN
P = 8.5 Watt, F = 440 mN

[explorer]

how do you make sound on the speakers?

[MidiMusicKH]

Theoretical calculations:
(Tính toán theo lý thuyết)
P = 8.5 Watt, F = 440 mN
v_wout = 4.0 m/s
m_wout = 0.112 kg
m_boat = 0.130 kg
V (max, of boat) = ?

  m   * v   =   M   * V
0.112 * 4.0 = 0.130 * V
=>
V = (0.112 * 4.0) / 0.130
  =     0.448     / 0.130
  = 3.4 m/s = 12 km/h

[MidiMusicKH]

This Ak-Engine can withstand voltage higher than 7.4V, without failure.
However, the electronic circuit is unbearable, and will fail.