EmDrive & AwDrive - Air-AND-Water Propulsion Engine

[MidiMusicKH]

- Speaker: 5.6 cm, 12 Om, 100 Watt, Sony (KOREA), 170g

[MidiMusicKH]

If you want to build a Powerful Air Propulsion Engine, make a loudspeaker as follows:
- replace ferrite magnets with neodymium magnets, smaller size, but many stronger
- make a coil of a great length (about 30 cm)
- make a very long magnet slot (about 30 cm) for the coil
- make a metalic truncated cone for the loudspeaker as shown in this clip
You will have maximum oscillation amplitude of the loudspeaker's diaphragm very big (about 30 cm), and you will then have a Powerful Air Propulsion Engine.
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Theoretical calculation for this "speaker with cone"
d = 1.29 kg/m3
A = 30 cm
R = 15 cm
r =  5 cm
f = 60 Hz
Thrust F = 1063581 mN = 1063 Newton
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