I checked my math. :(
A human hair is as narrow as 17 microns...and the propulsion design was for
a SCRAM jet. Dubbed the Aurora I think. It was to have essentially no
moving parts.

On Fri, Jan 25, 2019, 9:47 PM Jonathan Engwall <
engwalljonathanther...@gmail.com wrote:

> Hello,
> I looked at one of the patents. It is weird.
> Quite weird ideas about airflow or as they say 'gas' moving through a
> channel only 500 square microns. If I am off saying that is the width and
> height of 22 human hairs, tell me where I went wrong. And that is the
> _intake_!
>
> Jonathan Engwall
>
>>
>> https://patents.google.com/patent/US8414847
>>
>> https://patents.google.com/patent/US8986627B2
>>
>> https://patents.google.com/patent/US10113774B2
>>
>> Prentice
>>
>>
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