This week has been very windy, so I thought I'd try flying the Raptor 140 in gusts of wind over 33mph/53kph. This is also one of the requirements of my USA trip, to be able to fly in over 40kph winds. And.... It flew great!
I tested the bungee take-off, which worked perfectly as I aimed it into the wind, the Raptor navigated the airspace with ease as it has tons of power,…Continue
Added by Trent at MyGeekShow on December 21, 2013 at 5:34am — No Comments
After a few painful hand launches of my Raptor 140, I decided there had to be a better way to reliably and consistently get my large and slightly heavy airplane in the air. I built a bungee launcher and installed launch hooks in the 140a and 140b, and tested it out!
It launched perfectly, just enough kick to get the airplane in the air. It will prove to be a much more reliable and predictable…Continue
I'll be providing an update on the USA trip's status,…Continue
This week the Raptor 140 completed a 30km (18.6mi) fully autonomous flight! It only used 58% of it's 8.8Ah batteries, giving it a potential ability to cover 51.2km (31.8mi) on a single charge, the whole time flying at 75kph (47mph) for 40+ minutes! Impressive...
Some additional metrics to consider: is average amp draw was 12.8amps, or 21% of the 60amp esc, also it had a 5.8km/Ah (3.6mi/Ah)…
This week I conducted the Raptor 140's flight testing. I put it through the paces by testing it's general maneuverability (pitch and roll), high maneuverability (rolls, loops, climbs), its speed performance (cruise, max, stall) and it's technology performance (video, telemetry, GPS, compass, autonomous flight, etc).
It passed all its…Continue
After two months of research, testing, designing, building and just all out airplane slavery, I've finally completed the Raptor 140 - the next generation of the Raptor flying wing family, which is the next performance step in my USA trip next summer.
Check it out!
Improvements over original Raptor:
Four times the…
I set up a 5k circuit of waypoints, with a max distance from the ground station of 1.6k, and set the Raptor to fly it, and continue to fly it, even if it lost radio signal on the Tx or the Telemetry connection.
The 9x started losing signal about 1.6k or 1mi away, while the 100mA 900mhz telemetry held strong at about 60% during the longest range points.…Continue
Announcing the Raptor 140, the next airplane in the MyGeekShow fleet. Its a major improvement on the very successful Raptor airframe, slightly larger than the current Raptor (140cm wingspan vs 120cm), with a ton of improvements. What do you think? Am I missing anything?…Continue
We did it! With your help over the last few years, I finally completed a cross country flight (take off and land at different locations). Executed the mission flawlessly, all that preparation paid off.…Continue
After flying 15 missions and traveling over 150km to establish the APM's reliability, I completed this final test of key failsafe and telemetry control functionality.
Specifically, I proved the APM and Raptor's ability to:
1. Conduct an unlimited loiter at the end of a mission
2. Changing altitude, throttle rate and…
I created an Excel spreadsheet to analyze the telemetry data during the flight testing, and have discovered some pretty interesting correlations between altitude and RSSI, throttle settings and cruise speed, cruise speed and mAh/km, etc. This by no means replaces the graphing functionality the Mission Planner has, but its a start into some of the specific analysis I'll need to capture as I prepare for the USA…Continue
I set up three 3k circles around my field to test range and how the Raptor would perform during an actual travel environment, and it performed very, very well. A perfect flight. You may see at the end I realize that my RTL altitude was set to zero, but luckily I was quick enough to set a guided mode until I could manually return it home.
Awesome stuff! Thank you…Continue
Used the APM, Raptor and 900mhz 100mw 3DR telemetry to enjoy an awesome autonomous flight. I tested waypoints, guided mode, changed altitude and other awesome telem/mission planner features. Can't wait for more! Great job DIYD...
Raptor Details: http://www.mygeekshow.com/theairplanes/Raptor.html
USA Trip Details:…
CORRECTION: During this video I say GPS operates on 900mhz, which is not correct. According to Wikipedia (http://en.wikipedia.org/wiki/GPS#Satellite_frequencies) GPS operates on 1.57542 GHz (L1 signal) and 1.2276 GHz (L2 signal). I apologize for the error.
Here are a few tips when mounting your APM to your RC craft.
This is a part…Continue
I know, I know... after months of being away, I'm finally getting an airplane back in the air with the APM. It flew great and the APM, as always, was awesome. I'll be using the Raptor for a while and will start doing longer range flights via telemetry. Its also allowing me to complete the Beginner to Expert videos I'm making for the APM.…Continue
On this video I demonstrate how to connect your APM to the mission planner so you can test the onboard sensor's functionality.
So far I've gotten positive feedback on these Beginner to Expert videos, so I'll keep churnin' em out in hopes that future DIYD'ers can be helped by them. Check out the dedicated page on MyGeekShow: …Continue
Added by Trent at MyGeekShow on March 26, 2013 at 6:55pm — No Comments
It's my turn to give back! As a way of saying thank you to all of you who have helped me along the way, I'm going to focus the next dozen or so Beginner to Expert videos on the APM!
I've been doing free "Beginner to Expert" videos over the last few months where I focus on a single principle and do a tutorial or a how-to that hopefully, will help others along in the hobby. The APM videos are specifically aimed at helping those who are brand…Continue
The USA trip is back in focus! (I had taken a few weeks off to do a side project)
I'm also announcing a new airplane, the Polaris; a combination of the Nova and Shrike. It will feature a longer endurance airframe and power supply, and, of course, full automation through APM.
I'll capture the build process while I build the Polaris, and present it as a build log for others to follow along.
More about the USA…Continue
While adding the AMP to the Shrike, we wanted to understand Flying Wings a little better and explore expos. We incrementally increased expose to 0%, 30%, and 60%, then flew the Raptor with the existing vertical stabilizer at 100%, 50%, and 0%. We were surprised to find that it flew just fine with 0% stabilizer! This test was in low wind, however, so it will…Continue
We successfully re-maidened the Shrike! Turns out that our elevons had excessive throws, we had insufficient expo's and the wing mounted too far to the nose causing a tail heavy environment.
It's still a little tail heavy, but we're getting closer! Anything you notice that demands to be fixed/improved?
See you Saturday,
-Trent & Nick