Comment by ggtronic on July 16, 2012 at 8:53pm

subscribe...X8 actual built...APM2+airspeed on its way... very little experience with APM1+bixler...really appreciate the PID sharing ! will fly it in FPV mode+EZuhf wich downlink actual GPS course live on GoogleEarth...

Moderator Comment by Hai Tran on July 17, 2012 at 8:29pm

Here's my retractable launch hook for my X8.

Unlike the Zephyr you don't have any thing to stop the launch hook getting damaged on landing, so I made it retractable using a spare Parkzone retract.

Moderator Comment by Hai Tran on July 19, 2012 at 6:49am

Ok, the launch hook was strong enough, however the 10m blue bungee managed to move the X8 2 metres and stopped on the ground.

Need 2 or 3 x bungees.

Hand launch was a success, and to my surprise had to dial my dual rates up mid flight from 50% to 100%.  Unlike the ZII, the X8 is slow and uses much more throws.

Comment by Toby Mills on July 19, 2012 at 2:33pm

Glad to here it went well.

Has anyone made any improvements on the PID's posted?

Comment by Toby Mills on July 20, 2012 at 6:41pm

I made an excellent discovery with the X8.

an iPhone4 fits perfectly in the nose tray at the front. Just carve out a small hole for the lens and you can do this....

http://www.hypr3d.com/models/4fe6981b50656b0001000043

Comment by Toby Mills on July 20, 2012 at 6:44pm

These also with an iPhone on the X8...

http://www.hypr3d.com/models/4ff8cc289ceae20001000062

http://www.hypr3d.com/models/4ffb8be22592560001000027

 

Comment by Alexandre Moreno Richwin Ferreir on July 20, 2012 at 6:53pm

Great results Toby,

i placed a Canon in the front too, the circle size is exactly the same of the lens.

The IPhone handles well with the focus?

Curiosity, what was the altitude above ground in that last link?

Comment by Toby Mills on July 20, 2012 at 6:56pm

focus is fine so long as you keep the speed down.

>what was the altitude above ground in that last link?

ummm - quite high :)

Moderator Comment by Hai Tran on July 28, 2012 at 7:45am

I need some help with my APM X8 please.  R/C controls operate the elevons correctly in Manual and Stabilise.

Stabilise operates the elevons in the correct directions.  Pitch stabilisation works perfect with full control deflection, but roll stabilisation is too slow because the elevons are only deflecting up but not down for roll stabilisation

When you roll the plane left, the APM commands right roll, which mean the right elevon goes up, which is correct, but the left elevon only travels down to neutral position, it doesn't go down all the way like when you move the R/C  stick to roll right. 

Comment by JeffBetts_KK4MTC on July 28, 2012 at 4:43pm

I'm just getting started with my build and wonder how y'all have dealt with the ailerons. I'm thinking of cutting them out completely, sheeting on the bottom with 3/32 basswood, installing some Robart hinges instead of taping them.  The foam ailerons seem to be too flexible to work well with such a large plane w/o the reinforcement. The foam also seems too stiff for the aileron to move as far as it needs, unless the ailerons are dis-joined from the wing. Just curious what others have tried and what seems to work best. 

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