mandevil's blog archive for April, 2012 - RC Groups
mandevil's blog View Details
Archive for April, 2012
Posted by mandevil | Apr 27, 2012 @ 04:46 PM | 4,424 Views
I took a leave from work on Friday and spent much of the time flying. I have drained my set of three batteries twice. Great time.

As I mentioned, with the new transmitter I have full range on ailerons available. With this I can actually do rolls with Bixler and that was what I practiced a lot. Suprisingly, with some care and little help of headwind, one can make vertical rolling ascents. Impressive.

I also have mixed rudder into ailerons and set up differential ailerons. Honestly, I don't see much difference.

I also shot aerial video on two location and have one in backlog from the last weekend. Good stuff is coming, especially the last video looks much more stable than all previous ones.
Posted by mandevil | Apr 22, 2012 @ 06:14 AM | 8,373 Views
Yesterday I took my Bixler to test my new FlySky TH9X transmitter. Conditions were rather windy, making the plane's handling quite difficult at my first location. Then I moved to different place, which was as windy as the first. On the last flight I managed to soar for 11' 40" after one minute climb. I just kept flying into the wind with no attempts to circle. I guess there must have been some thermal in there, despite it being almost 7pm. Funny thing.

At any rate, the TX works fine. For the benefit of very first timers I detail the basic setup I did prior the maiden flight below.

1. The first step was to make ailerons work. I use two-channel aileron setup, with ailerons on the usual channels 1 and 6. The first 4 channels are default, the channel 6 needs to specify source AIL. Also I needed to reverse ailerons and rudder, which is done by setting their values to negative.

2. The next step was finding a way to be able to cut off throttle and make this default after the TX is switched on. Well, turns out that ER9X has specific function for this: "Safety switches". So I specify a setting for channel 3 (throttle), that makes the TX override the channel value with -100 when throttle switch is in OFF position (that's the !THR). Optionally, you can enforce the position of this switch on power up (in screen 2)

...Continue Reading
Posted by mandevil | Apr 20, 2012 @ 11:03 AM | 4,527 Views
Yesterday I picked up my FlySky FS-TH9X. It now has the latest stable ER9X firmware, programming connector outlet in the body and also processor-controlled back-lit display (which is really good investment, the readability in indoors is way way better).

Hopefully I set it up today for tomorrow's flight test!
Posted by mandevil | Apr 11, 2012 @ 06:22 AM | 4,106 Views
So this is second week of no flying. The last time I forgot to take wing spar with me, this time it was too windy. Too bad.

During the last week I received new radio, the SkyFly FS-TH9X (from Giant Cod, really quick delivery). I am little underwhelmed, the quality isn't that great (the display glass fell off, the battery compartment cannot be closed with AA batteries, the original software has lot of limitations). I switch the TX to mode 1 and used the AA battery cage connector to attach LiPol 2500 mAh TX battery. The last mod to do is, of course, to flash ER9X software. But I cannot really do this myself as I a) don't have the ISP programmer and b) I really don't know how to solder the cable necessary for the flashing. Therefore I'll use the service of more experienced guy to do this.