Mike
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  • Westbank, BC
  • Canada
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Mike's Discussions

Minor planner suggestions...

Started this discussion. Last reply by Mike Jun 29, 2012. 3 Replies

The planner has come a long way in the past year or so and I greatly appreciate all the work that the developers have put into the project. I would like to make a few minor suggestions that I feel…Continue

Airspeed vs. ground speed with head wind.

Started this discussion. Last reply by Mike Jun 27, 2012. 9 Replies

Is there a way to have the APM increase the throttle when flying into the wind to maintain a minimum ground speed?For example if the cruise throttle is 50% at 10m/s and the wind is 10m/s, when flying…Continue

Airspeed sensor, manual calibration mode?

Started this discussion. Last reply by Mike Jun 26, 2012. 4 Replies

It seems that I'm constantly having problems with my airspeed sensor and the values it reports when I'm at the field. However when I'm sitting in an enclosed room I run tests with a fan and…Continue

2.40 firmware won't save config/waypoints.

Started this discussion. Last reply by Andrew Tridgell Jun 22, 2012. 4 Replies

Ever since I upgraded to the v2.40 firmware my APM1 won't save its configuration/flight plan across reboots. I tried manually erasing the EEPROM and resetting to factory defaults, but that didn't…Continue

 

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Traversing mountain peaks and valleys...

Posted on November 7, 2011 at 4:56pm 3 Comments

In an attempt to make a flight plan that will make it over a mountain peak and land in a valley, I have defined the following plan to command Ardupilot to loiter to a certain high altitude, traverse to another waypoint, then loiter safely down to another low altitude:

xplane_high_alt.h

 

#define WP_RADIUS 30 // What is the minimum distance to reach a…
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Quest for the perfect flight path...

Posted on October 26, 2011 at 8:42pm 22 Comments

After some decent results described in my previous post regarding PID tuning for high winds: http://www.diydrones.com/profiles/blogs/pid-tuning-for-high-winds, I wanted to see what it would take to get the best possible flight path with the least amount of flight planning possible. The end result was a three waypoint 90degree corner, as shown below.

 …

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PID tuning for high winds...

Posted on October 25, 2011 at 4:00pm 15 Comments

After a grossly failed attempt at fully automatic landing due to mild winds (luckily no damage), I decided to go back to the simulator and see what PID tuning is required to handle the harshest flyable wind conditions that I could throw at Ardupilot. Because I fly in the mountains and I'm interested in fully automatic take-off and landings, path following needs to be as accurate as possible.

 

Xplane settings:

Plane: Radio controlled PT60

Weather: Wind: 25kts at…

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Comment Wall (3 comments)

At 7:13am on June 19, 2012, Shaun Bell said…

What are you flying Mike?  Didn't know there were any other DIY drone fans in this area lol.

At 8:40am on June 19, 2012, Mike said…

I was surprised too!

I've been flying with APM for just over a year now, and last month I finished building a Skywalker 1900 for long range FPV/autopilot flights. Once the weather around here finally sorts itself out I hope to try for a 20km round-trip flight and if that works out I should be able to move as high as 30km with the current setup.

It looks like you have quite the setup yourself, how has that been working out for you and what kind of flight times are you able to get?

At 9:51am on June 22, 2012, Shaun Bell said…

With the 5ah lipo I'm getting 10min.  That's really pushing the airframe, it was designed for a 2.5ah and a GoPro lol.  Currently it's got a Sony NEX 5n so it's pretty loaded.  I'll probably ditch to Sony and add a FLIR ir camera which is pretty light.  I'm changing my photo/video rig to a DJI S800 which can lift way more payload.  Both the multi rotors use WooKong M's with waypoint control and 900mhz data link.  Looking at the APM2 and the pro 900 bee radios, looks like a lot better value compared to DJI's versions.  I have yet to put the APM into anything yet, but I was looking at an X8 flying wing...if they're ever in stock lol!  I'd love to hear about you RX and telemetry links as well as your video system. 

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