About

Gender

Male


Please tell us a bit about your UAV interest

Designing


Hometown:

London


Activity Feed

Damian commented on Damian's blog post Ellipso - new domestic robot drone from FRACH robotics
"Here we go. We are on the Indiegogo right now! 
https://www.indiegogo.com/projects/ellipso-the-age-of-robots
Please review and tell us what you think.
Thanks!!!"
Jan 20
Damian commented on Damian's blog post Ellipso - new domestic robot drone from FRACH robotics
"Technical design details:
* Robot SW design - The robot's main control process is implemented as an Android long running background Service. The Service's thread cycles every 100ms and it implements integration with all external modules; such as…"
Jan 16
Damian posted a blog post
Dear AllWe are introducing Ellipso, a new domestic robot drone from FRACH robotics and we would like to hear your feedback!Ellipso is an autonomous intelligent home robot drone, which is always online, listening to you and ready to execute your…
Jan 15
Damian commented on Maksim P's blog post ZOON - 2.4Ghz LoRa Telemetry Module by DRONEE
"Cheers Maksim! Did not know that"
May 2, 2019
Damian commented on Maksim P's blog post ZOON - 2.4Ghz LoRa Telemetry Module by DRONEE
"You are not allowed to use these speeds in EU or US. Depending on the frequency your duty cycle can be only 10% or even just 1%. The Lora is not supposed to be used for any real-time telemetry:…"
May 2, 2019
Damian commented on Greg Dronsky's blog post First DIY Zoom Gimbal
"The resolution seems unusable ...
a 700 TVL camera has an effective resolution of 976 x 582"
Jun 2, 2018
Damian commented on yangdaonline's blog post 30X EO/IR drone zoom camera with object tracking and geotagging
"not sure if I would put a £12k camera on the skywalker ... "
Oct 19, 2017
Damian commented on Chris Anderson's blog post Lidar Lite back with V3 after Garmin aquisition
"It seems  a bit pricey. I was thinking to hack one of these 80m $32 units:

https://www.aliexpress.com/item/laser-range-finder-40-60-80-100-met..."
Sep 15, 2016
Damian commented on Ben Dellar's blog post 100km in the X-UAV Talon
"Ok Jason; I assumed the same resistance. You are right. Lower kV motors have much higher resistance. 
Great I can keep designing my drones on 3S as it is much cheaper .. :)))"
Sep 11, 2016
Damian commented on Ben Dellar's blog post 100km in the X-UAV Talon
"3s vs 6s efficiency. Just picking up some random motor here http://www.hobbyking.co.uk/hobbyking/store/__18968__Turnigy_D2836_9... stated internal resistance: 0.07Ohm.
So with 100W power, 10Vs for 3S the estimate current is 10A. 10A x 0.07Ohm =…"
Sep 11, 2016
Damian commented on Ben Dellar's blog post 100km in the X-UAV Talon
"Frederic
My concern with using the larger props for cruise flight is to generate more lift than the drag for a given required speed. It is OK for e.g. 3D flyer to have prop thrust e.g. 200% of the weight of the plane, but it is an overkill for a…"
Sep 11, 2016
Damian commented on Ben Dellar's blog post 100km in the X-UAV Talon
"Frederic
The RC prop calculator above and some RCGroups posts claim that RC planes can fly a bit faster (15%) than the pitch speed (assuming the total drag is less than the prop thrust). 
http://www.rcgroups.com/forums/showthread.php?t=804685
>> So…"
Sep 11, 2016
Damian commented on Ben Dellar's blog post 100km in the X-UAV Talon
"Hmm, APC E 12x6 prop is really a wrong match for Talon and 60km/h cruise speed. 
These are the data for APC E 12x12:
240g static thrust
20w prop power; 28w total electric power
51km/h pitch prop speed; 60km/h cruise plane speed

And here an example…"
Sep 11, 2016
Damian commented on Ben Dellar's blog post 100km in the X-UAV Talon
"Actually just running the numbers again with the http://adamone.rchomepage.com/calc_thrust.htm and APC E 12x6 prop and I get:
853g static thrust
92.4W of required prop power
about 130W of required total electric power (20% ESC losses; 20% motor…"
Sep 11, 2016
Damian commented on Ben Dellar's blog post 100km in the X-UAV Talon
"Thanks John
The cruise speed is given as the business requirement; in this case at least 60km/h. It makes sense for 100km flight with the flight time of 1h40min. Also the wing aspect ratio and wing loading are constraint with the given model: Talon…"
Sep 11, 2016
Damian commented on Ben Dellar's blog post 100km in the X-UAV Talon
"Thanks Frederic
1/ I have used this RC prop calculator (http://adamone.rchomepage.com/calc_thrust.htm) to find out required prop power for 12x6 prop with straight cruise of 60km/h. And added 20% ESC losses and 20% motor losses. It roughly matches my…"
Sep 11, 2016
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