Simple cheap solution for you user pic related.
Truth bombing
this, balloons are a million times cheaper and they won't be able to track where the balloon came from, unlike the drone, which the police will spend thousands of hours analyzing wreckage from in order to discover who the hate terrorist is.
people actually start doing this and there will be calls to ban weaponized war balloons and balloons of all types.
Brittany was detained because the British didn't want little CIA operatives instigating a civil insurrection. I do like this idea, but I think to break the spell on the British people, someone needs to hijack the BBC communications equipment. Imagine broadcasting TGSNT over their networks, 24/7.
I don't see what could go wrong. Get on it!
You could easily make and use hydrogen as well which would keep you from being detected buying helium. a 9V battery (electricity) and water are all you need to begin making small quantities. The lift yield is slightly better than helium. Just don't blow yourself up, and with balloon sized quantities you shouldn't. Other than that all you need is a decent basket type release mechanism which triggers when the balloon reaches maximum altitude and pops.
cia.gov
^CIA manuals^ have all the specifications relating to size of paper leaflets to weight ratio for anybody serious, use waterproof paper/laminate/sheet protectors. Acquire everything secondhand new in the package and always use gloves/hazmat suit/sandblasting vacuum booth to prepare materials to avoid leaving identifiable forensics.
get paper + cheap paper protector sheets use glue to seal them for weather protection and additional attention because a piece of protected paper is more eye-catching.
Put dozens of fliers into balloon losely rolled together like newspaper/stick that you can put through the balloon mouth, Fill balloon with helium, combine alarm clock electronics with firecracker gently shove alarm speaker cables into the center of firecracker where the blackpowder is, calculate wind direction and speed to set alarm time to have it pop when it is at a position near your goal. Do a few raw test flights first to get a better feeling about how the balloon behaves in the air and how fast it flies to a location. Also check if the speaker cables can detonate a firecracker, and lastly make sure to calculate the amount of helium you use, you don't want the balloon fly up like a rocket but gently rise or you risk it popping prematurely or fly up too high and catch a higher wind that gets it off course. Considering one load will cost like 2$, you could make a whole fucking swarm of these for the price of one drone.
t. Kid who had way too much time building all kinds of shit in grade school
Pretty sure you would breach dozen public and classified federal laws including terrorism and get 50 years of jail minimum.
Actually a bretty good idea OP. If you live somewhere that these drones are legal to fly.
(checked)
You have to pressurize the H to fill the balloon, do you take a big wiff and exhale it into the balloon to fill it?
Best idea so far lifting force is 28grams/ft^3 from here
Every user who suggested balloons here is better.