You can refer to Loon library:
https://x.company/projects/loon/the-loon-collection/

Loon CEO has a good Medium article with useful references: 

https://blog.x.company/loon-draft-c3fcebc11f3f

Hesham

On Sat, Apr 8, 2023, 12:38 PM Dave Taht <dave.taht@gmail.com> wrote:
On Sat, Apr 8, 2023 at 12:07 PM Hesham ElBakoury via Starlink
<starlink@lists.bufferbloat.net> wrote:
>
>
> Google Spinoff Aalyira salvaged Project Loon technology for US military.
>
> https://arstechnica.com/gadgets/2022/09/google-spinoff-aalyria-salvages-project-loon-technology-for-the-us-military/amp
>
> Hesham

I did not know that. Loon did one of the greatest post-mortems of any
project I had ever read, 60+ pages long, and I cannot find it now.


(I love having you all on this list!)
>
> On Sat, Apr 8, 2023, 11:37 AM Michael Richardson via Starlink <starlink@lists.bufferbloat.net> wrote:
>>
>> David Lang via Starlink <starlink@lists.bufferbloat.net> wrote:
>>     > Google shuttered project Loon (balloons to do this rather than UAVs) in
>>     > the last year or two
>>
>> I heard that too, but also that some external entity then put up some money
>> and partnered to start it up again.
>>
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>
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AMA March 31: https://www.broadband.io/c/broadband-grant-events/dave-taht
Dave Täht CEO, TekLibre, LLC