About

About Me:

Armchair aerospace engineer


Please tell us a bit about your UAV interest

Semi-autonomous sensor networks of UAV's/UGV's


Activity Feed

Ouroboros commented on Chris Anderson's blog post Welcome to the new DIY Drones design!
"Basic links in a blog post use a facebook URL redirector service, which is unpleasant from a privacy perspective. Though that can probably be undone with a setting somewhere..."
May 28, 2020
Ouroboros commented on Chris Anderson's blog post Thrust-vectoring monocopter
"Reminds me of the Convair model 49"
Sep 3, 2018
Ouroboros commented on SkyDrone.aero's blog post Using LTE when flying 700km/h.
"Uh, isn't there a rather important point that frequency licensees often have directional limitations, such that terrestrial cellular carriers have to often point their antennas downward to comply? And some other carrier handles aircraft to ground…"
Nov 29, 2017
Ouroboros commented on jlcortex's blog post Searching for heavy duty applications for HYBRiX20
"Perhaps try to get some introductions through Randy, as he is located in Japan, which has extensive agricultural spraying with RC helicopters. Though that is a challenging environment, mountain valleys obscuring GPS (so RTK support), extensive…"
Aug 6, 2017
Ouroboros commented on Gary Mortimer's blog post US Army calls for units to discontinue use of DJI equipment
"Considering the active DJI hacking scene this was inevitable. Even if DJI wasn't doing something shady, the number of holes/bugs makes this a problem. The flipside being opensource is in that weird middle zone where transparency is a blessing and a…"
Aug 6, 2017
Ouroboros commented on Patrick Hanley's blog post Hanley Innovations Upgrades Stallion 3D to Version 5.0
"Sure looks like the X-57 Maxwell X-plane, which is not a trivial simulation..."
Jul 21, 2017
Ouroboros commented on Jack's blog post Quadcopter brushless motor: which brand is most popular one?
"Here's launchpoint demoing their 1.5KW UAV genset underslung on a DJI S1000, notably the pancake generator is flat relative to the ground on the bottom. Wonder how serious the torque is...
https://www.youtube.com/watch?v=cJhT1UoBLFM"
Jun 5, 2017
Ouroboros commented on Jack's blog post Quadcopter brushless motor: which brand is most popular one?
"Shame Launchpoint isn't publically selling their dual halbach axial motors. They claim pretty high power density that is pretty impressive (5hp/lbs), and DARPA/NASA is still funding their technology expansion research. Notably they seem to pushing…"
Jun 5, 2017
Ouroboros commented on Bart Theys's blog post Meet CargoCopter: our latest generation of high-speed, long-range drones
"Can you describe more about the reasons for the evolution from the highly angled 2015 design to a nearly 90 degree tailsitter design for 2017?"
Jun 1, 2017
Ouroboros commented on Chris Anderson's blog post Navy wins DARPA swarm challenge
"Wonder if Army would have lead if it was a rotary/VTOL swarm competition..."
May 10, 2017
Ouroboros commented on Udo Zillmann's blog post Producing Energy with Drones - Wind Drones
"While the winch based systems with a flywheel seem to be a common test platform, it always seemed like better performance could be gained with a merry-go-round configuration with multiple kites/fliers spooled out on tethers rigged from moment arms…"
Jan 4, 2017
Ouroboros commented on Colin Snow's blog post Can AeroVironment Compete in the Commercial Drone Market?
"Smells like ardupilot based, with mavlink based android app based on some of the descriptions. Can anyone confirm?"
Dec 4, 2016
Ouroboros commented on jlcortex's blog post 2 hours and 5 minutes test flight with maximum takeoff weight
"Most conventional centrifugal/axial microturbines are fuel guzzlers to be sure, and the typical efficiency boosting solution of recuperators does no favors due to weight.

Rotary ramjet style supersonic turbines in theory can reach diesel levels of…"
Nov 23, 2016
Ouroboros commented on Joe Renteria's blog post Helicopter Concept
"Would concentrating the hardware to essentially a battery rotor hub and joining 2 together (common payload shaft, functionally independent, but one slaved to the other wirelessly) to be a coax be another path?"
Nov 23, 2016
Ouroboros commented on Dmitriy Ershov's blog post Fleetlights - open source guardian drones service
"It's the Uber for Streetlights!!!111lol

Seriously though, this plus battery autoswapping droneports (perhaps mobile droneport based on a truck/van system) would not be totally insane..."
Nov 23, 2016
Ouroboros commented on jlcortex's blog post 2 hours and 5 minutes test flight with maximum takeoff weight
"At this scale though, are generators confined to two-stoke oil premix fueled piston engines? Will there ever be a viable microturbine turbogenerator with foil bearings to avoid the lube issue and use straight gasoline or diesel? Will Liquid Piston's…"
Nov 22, 2016
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