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### Activity Feed

Alpo Hassinen commented on Adam Morrison's blog post Introducing WaterStrider on Kickstarter—Make Confident Takeoffs &amp; Landings Anywhere
"I have also tested this kind of floats. This was two years ago, in june 2014."
May 21, 2016
Alpo Hassinen commented on Chris Anderson's blog post New Solo chute system released at AUVSI
"Parachute weight is 250gGimbal + Hero is 320gTotal: 570gIn Solo manual page 80 there is text: "Payload capacity: 1.1 lbs. (500 g)"In Solo development guide there is text: "* The maximum payload of Solo with gimbal, camera and other accessories is…"
May 5, 2016
Alpo Hassinen commented on Chris Anderson's blog post Amazon patents drone propellers that can say "watch out"
"Similar light system has been used in paramotors. At the end of this page there are some pictures: http://parinapojanjorinoita.blogspot.fi/2011_03_01_archive.html"
Mar 31, 2016
Alpo Hassinen commented on unnamed idea's blog post Preparing Auto Missions Using Python
"It is quite easy to use also meters in formulas.Here is some simple mathematics:- Distance from equator to North pole is 10 000 km- Distance is also 90 degrees- So 1 degree is 10000 / 90 = about 111 km.- 1 meter = 90 / 10 000 000 = 0.000009 degrees-…"
Jan 29, 2016
Alpo Hassinen commented on Alpo Hassinen's blog post TaigaCam, ROBUST plane for aerial photography
"Wing length is 150 cm. It can not be much longer, there will be twisting of flutter problems.Wing chord is 25 cm. Wing material is 30g/l EPP."
May 20, 2013
Alpo Hassinen replied to Jamie Glover's discussion Geo-Tagging in MP question/issue
Apr 28, 2013
Alpo Hassinen commented on Alpo Hassinen's blog post Better log analyzer for APM
"I have not updated the program. But look this:
http://diydrones.com/forum/topics/version-1-3-of-apmlogvisualizer-w..."
Jul 18, 2012
Alpo Hassinen replied to Craig Burden's discussion Arducopter v2.5.x Random crash
"Same also here. I fly couple of days ago. First flights were ok, as good as can be. Then in one flight copter suddenly without any warning flip to right and hit to ground. Fortunately we have here half a meter show, so no damages (except that…"
Apr 14, 2012
Alpo Hassinen replied to Mark Zimmerman's discussion ArduCopter cannot fly anyway
"Here is quite safe way to test copter: old matress. Then I tied a short line to the middle of copter, and other side through a matress, and there to a wooden stick.
I can freely test copter, motors and everything. In this picture copter is flying at…"
Apr 4, 2012
Alpo Hassinen commented on JP's blog post Update from DM. Thanks to all the beta testers. New mosaic only mode and other features!
"Does this program make good mosaics from forests?There are hundreds of trees, and they look quite similar. We must fly at low altitude (<150m), and same tree seems to be totally different in two picture. (Even if we try to make 60 - 70% overlap.)We…"
Mar 27, 2012
Alpo Hassinen replied to Lee Williams's discussion Any good airframe plans out there!!
"Here is one. Only problem is to get those wing profiles.
http://diydrones.com/profiles/blogs/taigacam-robust-plane-for"
Jan 6, 2012
Alpo Hassinen commented on Alpo Hassinen's blog post Georeferencing pictures
Jan 3, 2012
Alpo Hassinen commented on Alpo Hassinen's blog post Georeferencing pictures
"You can trigger the camera how you want. Camera saves the right time stamp to picture exif-data, and these programs can use it."
Jan 2, 2012
Alpo Hassinen commented on Alpo Hassinen's blog post How I made a CHDK-launcher to Canon camera
"That pcb is taken from servo. Only the servo motor is removed, and two wires going to motor are cut near motor. You can see these wires coming from pcb. Then I added that diode, and also usb-cable. I did not change anything else. This servo pcb can…"
Dec 22, 2011
Alpo Hassinen commented on Alpo Hassinen's blog post How I made a CHDK-launcher to Canon camera
"@David
Probably not very easily, but you can do it afterwards: http://diydrones.com/profiles/blogs/georeferencing-pictures"
Dec 21, 2011
Alpo Hassinen commented on Alpo Hassinen's blog post How I made a CHDK-launcher to Canon camera
"I can not test it, but it should be possible.
Look here details http://chdk.wikia.com/wiki/A495