& u can have high altitutude... u could make it crazy higher if its a electro magnetic drone... like super high voltages with a powerful power source generally not aviable maybe on alot of earth to public just yet?
ionic lifter
http://www.bearospaceindustries.com/aircraft.html -his site
pic from this video
guy made that plane himself pratially with a laser cutter !
oh note= want a glider wing confiuration design which wat he used for non solar
https://www.curriculumexpress.com/product/solar-plane-mobile-4m/?gclid=CjwKCAiAws7uBRAkEiwAMlbZjuFnbuorLQ5-CSitkBKy7vqRhIf-7gKn3ZUK-yLp8tnonkWMduWGVxoC_hsQAvD_BwE $20 - cheap solar mini drone kit help u learn how it works
real decent budget no 1 camera though! - guess u could just put 1 of those tiny pod cameras on here and camera solar plane
https://www.instructables.com/id/Solar-RC-Plane-Under-60/
course for live feed u need a signal sender and data receiver things
batteries= tesla or 1 new ones coming out our 1 in type u can buy in drone battery size from china
power source= alt additional power small 1 or more piezoelectric moduels -- from air temp diff.. so maybe just use that instead of solar? or a combination of both so u can fly 24/7 even at night for hours!
if nothing else easy option is just bring piezelectric moduels rigged toegher properly and charge spent battery ... so u fly again in like 1~3 hours...
course there's batteries u can recharge with just water coming out finally!
http://www.bearospaceindustries.com/aircraft.html
just included other plane cause its a great base for a electric/piezelectric plane base...
Also note= larger the better generally because unless u have a device that comensates for wind it can be pretty bad on small quadcopter drones even planes.... notice u almost never see anyone fly in stormy weather i did my drone smashed into a tree but hey its fun!\
http://dronenodes.com/how-to-build-a-drone/ has great info on building quadcopter drones great info source for drones period...
but
https://hackaday.com/2016/05/10/solar-fpv-plane-flies-forever/
theres variety of articles on it some just google
diy solar plane / diy solar plane drone etc
and browse threw some
i recommend having a friend help u that knows tiny abit bout this makes more fun and go faster to maybe?
cool graphic for how energy consumption on 1 is typically like & production
Also they could easily mass produce these...
i bet if you or i whoever /we started a solar plane company for small rc drone ones like this u also could make a lot of $ to
sense the market for that is enourmous!
https://hackaday.com/2016/05/10/solar-fpv-plane-flies-forever/
same plane as near above & how to
idea after watching this video
why not cover the underside in solar cells to ud still get alot of energy from em ... also what about piezoelectric power they make pretty small ones u can buy from a company in illinois .. u know mabye in addition to solar? also u had something like the piezolectricy /air electricity harvesting / something fun u could prolly fly it 24/7 at night to! either that or u could get a laser in the right wavelength or modifiy it to be and just shoot it at the plane or quadcopter but prolly be fun challengne to hit the panels on underside... without the laser being robo controlled and synced with ur planes location data
some ideas are beamed or feed to us maybe all yesterday i got 1 and said thank you and heard a your welcome!
i was like whoa wwtf thats cool!
u think thats werid we all do it? tesla did he admitted to it but cool stuff!
oh also hes still alive to just in spirt/energy dimensions and can be channeled among others!