Would have been interesting to hear the debrief. I wonder if they decided a fixed-fixed wing alternative provided more flexibility in coverage than the "mostly" unguided floating

Oshpark.com does .8mm boards. I'm a happy repeat customer for prototypes) Greg K7RKT

Question for those of you building ultra-small trackers for pico balloons: What thickness of FR4 boards are you using, and where do you get them manufactured? Many shops will build 0.0625" thick, but

Wow, Loon has been a neat project to folllow and i wish i could have been apart of. Dan Bowen are you in the group photo? My guess is your the guy standing behind the guy with a bald head? Carlton

That would be people reporting not understanding the terms. The payload wouldn’t have been the size of a tennis court. Even the envelope at launch wouldn’t really be that size. Take a look at the

Hi, If the payload was as big as a tennis court, how big is the envelope(s)? -----------------------------------------From: "Mark Conner N9XTN" To: GPSL@groups.io Cc: Sent: Thursday January 21 2021

Sorry to hear of their exit, it was interesting to follow their exploits. One of those unfortunate circumstances where you have to spend many millions of dollars just to find out if a cool idea is

https://medium.com/loon-for-all/loon-draft-c3fcebc11f3f Cost wasn't sustainable. 73 de Mark N9XTN Virus-free. www.avg.com

Congrats to the PENS-10p team. It is great to see how this project has inspired the students (and adults). - Bill WB8ELK

What a fantastic way for students to get involved with a project that takes them around the world on a balloon they helped launch. I hope they can keep track of future efforts as it fun to follow

Fantastic to see this! I too live vicariously through the student excitement, enthusiasm, and curiosity. Well done! -- "A posse ad esse." Ted Tagami CEO & Co-founder Magnitude.io +1 510 684

Mike, that is awesome! I’ve tried to get some interest here in Granbury, but it appears our schools can’t seem to get beyond their standard curriculum in most cases. Congrats on your

It’s great to see 170 Jefferson 5th graders receive their “World Travelers” certificate documenting 4 trips around the world for our Pico Balloon, PENS-10p. During these past 2 months the

https://twitter.com/NWSGlasgow/status/1349505642164195329 First one popped, second one made it after doing some extra surface data readings. 73 de Mark N9XTN Virus-free. www.avg.com

Bill, Ya, I plan a similar setup. I want to make a tiny 3D printed box that the balloon line passes through between parachute and balloon. The box will route the string just

Joe, That's awesome! Thanks so much for making those measurements! That'll really help with my planning. Thanks again! Mike / KD2EAT

Hi Mike, I designed a cutdown many years ago that had a CR123 battery. I supported the flight train through some ring lugs to keep it from moving (knotted the line where it went through the ring

Hello Mike! Using a FET would be pretty cool! I set up my cutdown for the current measurement. I used my DMM on the 20 A scale. When I made the connection, the DMM spiked around 5 A. After a

Hey Joe, I'm planning to make a quite similar setup myself. Do you happen to know the current draw you get when that nichrome is engaged? I'm trying to see if I can fire it

Greetings! I posted Selfie Mission schematics, bills of material, and source code on Github. I invite you to explore it here. Thanks! Joe Chief Surfer Surfing Satellites