OD twin boom pusher plane - neutrally unstable?

A question for experienced designers/aerodynamacists:

I have built and flown my third own design twin boom pusher plane. All 3 are very similar in dimension and proportion.1.7m span, 1.3m length, 1.3kg weight, Clark-Y airfoil.

However from the previous

White ticks on grey check boxes really hard to see at times

How many check boxes are ticked above? Not so easy to see...

Michael, please could the checkboxes be made black again like they were originally with a preferably a white background, the current white on grey makes it very difficult to see most of the

My APM2 Quad attempts fly-away, faith shattered.

After more than two hundred flights with my APM2 equipped quad, today, in the remotest of possible locations my quad failed to respond and attempted to fly away by itself! All I can say is thank goodness for Knobthorn trees.

I wanted to get some video

APM placement - absolutely in the center of the 'copter neccessary?

My Quad suddenly goes out of control and crashes, logs attached, APM2, help please?

My video quad keeps having an infuriating major anomaly and as I'm currently vacationing in a very remote spot in Southern Africa I have very limited internet access so is very hard to try debug.

The quad flies perfectly normally in all attitudes and

Automated Parachute Drop / Camera Trigger?

Edit: Success - http://diydrones.com/profiles/blogs/it-works-fully-automated-parachute-drop-from-quadcopter

I want to try this with my quad and see if and how it works.

Here's my waypoint list:

Basically takeoff to 6m (will actually take off the ground

CH6 Tuning - working?

Can someone please confirm that the CH6 tuning method is working with MP v1.2.4, method outlined below (from the wiki - http://code.google.com/p/arducopter/wiki/AC2_Tweaks):

Select the "ArduCopter Configuration" tab in the Mission Planner, choose the

Can I use this USB to TTL Converter with 3DR radios?

Can I use this USB to TTL Converter with 3DR radios? (not with the module of course, just the USB bit bottom-right)

and just sticking to the correct connections namely +<>+, -<>-, tx<>rx, rx<>tx

Changed quadcopter frames, now NO yaw?

I changed from an X525 frame to an own-design H-frame. Same motors, props, ESC's & APM2. I've used the X525 aluminium arms but with a ply-box for the center fuse portion of the H. Same positioning of the motors except the center section of the H is a

Flight Mirror Mode?

Has a Flight Repeater/Copier/Mirror Mode ever been considered for APM2?

I.e you fly a pattern or route and the 'copter or 'plane records the flight and then at the flick of a switch would repeat the pattern you've just flown.

APM2 - output rail dead!

Had a flight yesterday morning, tried to have another one later, but the board wouldn't power up at all.

Just checked now and the output rail is dead, it'll power up fine with 5V on the input rail. A couple threads mention a diode that may have gone,

Roll & loop - quad with APM2?

I tried a roll yesterday with my quad (X525 frame, 1.3kg, v2.5.3) using ACRO mode on the sprung toggle switch on my Tx. The short story is that the roll rate is very slow, far too slow to do a flip even a long run up and attempting a loop like a plan

Compile errors from Git version

I'm getting these compile errors from the latest git version, as far as I know all the libraries are there so not sure why these errors would appear. Anyone with greater experience help me out?

In file included from ArduCopter.cpp:93:
GCS.h:129: error:

[Solved] Can't download my logs from mission planner - APM2 (Grrrr!!)

I've been trying everything I can to get the logs off my APM2. I erased the logs with the Logs > Erase command in the CLI. Flew for 3 minutes or so, connect again and then when I go to the terminal tab of Mission Planner 1.1.40, I click Log Download

[Solved] Can't connect to APM2 with Mission Planner?

Plugged in APM2 with supplied USB cord,

loaded the driver from the wiki onto Win XP,

checked port & port baud in device manager, port 6 & 115200

started MP v1.1.40, set Port (6) and Baud (115200)

Click connect, this times out, on the terminal window:

....

Flytron Ultralight 50A current sensor

I have this current sensor for my OSD but would like to transfer it to APM1 on a quad.

It's not complicated - Sensor Gain: 100  (1 volt output equals 10 Ampere current).

Tried connecting it to APM following the wiki instructions, but it would only show

Motors/ESC's very slow to respond, default PID's. Help!

I've set up my DIY quad with the default PID's (Roll_P 4.60, Pitch_P 4.60) and everything seems OK in tests except the motors/ESC's are very slow to react to tilting the quad while hand holding it. If tilted to the left 30 deg and then rapidly tilted

Arducopter setup - errors and inconsistencies with the manual

I'm busy setting up a DIY quad with an APM1. Downloaded the latest Mission Planner and now going through the steps to set the quad up. Everything including baud and com port are set correctly.

But I have discovered some inconsistencies with program an

Mediatek GPS - test/flash with FDTI basic breakout board (3.3v)?

I only have this: FTDI Basic Breakout - 3.3V (http://www.sparkfun.com/products/9873) NOT the cable

My new GPS's have arrived and I would like to test them and seeing as I'm using on ArduPilot I want to flash the v1.4 firmware as well.

I have connecte

APM hardware revisions planned?

I'm considering taking the plunge on APM but before I spend the money are there any hardware changes in the pipeline about to be implemented?

I do NOT want to buy and then find out two weeks later that what I bought is obselete because the next versi