Wm's OpenPPG Batch 3 Build Log Photo Album

I went flying at my favorite LZ and encountered the most military traffic I’ve seen yet. :hushed: It was very windy; although, fairly laminar…and my X4 flew like a champ! Now I just need to improve my piloting skills! :stuck_out_tongue_winking_eye:

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The new throttle cable cable that I built in October for my batch 3 failed again a few weeks ago. :slightly_frowning_face: The #24 silicone wire was separating inside the silicone insulation. For the new cable I used #18 silicone wire which has about 150 strands instead of 40 in the #24. Also, I ran the wire through the inside of some 1/4" I.D. vinyl tubing that doesn’t tend to kink. Metal shielding fabric tape went around the tubing and wire loom over that. Since the assembly is much stiffer than the previous one (it is similar to the one on my Tornado 280 now), I had to re-route it and move my pre-charge switch over a bit. It all tested fine, and I’ve got my fingers crossed that the wire will last longer than the previous batch. It is not cool when all/some or none of your motors work when it is armed or when it disarms on its own!! :open_mouth: Here are a few pictures of the new assemble:

I will let you know how this new arrangement holds up.

Bill

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Nice work! I’ve done several flights with my replaced cable using the aircraft grade shielded wire without it failing yet. But I don’t let go of throttle in flight as I’m worried it will go into disable mode. It has done so a couple times on the ground with my new cable. I have the upgraded avionics on order.

Also during my last flight the voltage on the remote was jumping all over. It would read 52v then drop instantly a couple Volts without changing throttle setting. Anyone else ever see this on original avionics?

:grin:
That’s cool. Always loved that term.
Never noticed voltage reading fluctuation but I typically watched the clock and amps when I wasn’t looking out the windows. I assume the power/rpms didn’t waver?

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Thanks. I have my fingers crossed!

My X4 is Batch 3, so, the flight controller is very basic, batteries are 6S and the unit doesn’t have a BEC. My voltage is not stable either, but it only changes with throttle changes.

I hope your new flight controller does the trick!

Bill

One would expect the voltage to be lower under full power and higher at cruise or “idle”.

It is my understanding that it is " more stable" on later batches.

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I have the same different readings when under load or not… and it is the latest hub+controler… I think it is normal, and I had discussions about what numbers to read and when to stop flying…

Thanks! Mine is more stable when I am in level flight with no throttle changes… that is the voltage that I generally pay attention to. Bill

I checked out my new throttle cable on a flight at home in the Delta, and it worked great! Hopefully, the 18 gauge silicone wire with 150 strands will not fail…it gets exciting when conductors short out or break. :stuck_out_tongue_winking_eye: It was really fun flying my X4 again! If I had a lightweight battery that would give me an hour of flight on the X4, I wouldn’t ever fly anything else!

Can’t wait for the SP140!! Paul, please post a short video (ppg porn…is that an E-Pusher term??? :stuck_out_tongue: :+1:) on one of the first builds…it will help calm the us ppg’ers!

Bill