Jan / Adrian,

What you dont seem to grasp is that im a student of electrical engineering, and i actually know 1 or 2 things about electric systems and currents \ voltages etc.

I agree with everything you said but even peek momentary currents should not have degraded the battery's voltage so much that it would go (after the regulation) to 4.2V, even for a pilot second, and lets not forget you need to degrade TWO packs simoultaniously not just one.

I dont see it happening. might happen if you use 1 pack \ 1 reg or even a Nicd \ Nimh pack, but the Gemini has 2 independable regulators, and making them both drop the voltage so low sounds like a hard task using only 4 digitals on such an application as the Hawk jet, i just dont see it happening.

Believe me i understand where youre coming from and i read many posts about these issues, but with THIS SPECIFIC setup, i dont see it happening, there's a very long list of setups that might cause this voltage drop easily, this is not one of them. thats my point.

See you this weekend.. i missed you guys from last year.

PS - current spikes, believe it or not, always happen for a reason (i.e. a large load on the servos of some sort). i personally flew this aircraft MUCH harder than Nessy did, for several flights, on the same packs and one 1 charge, and had zero issues. this is another reason why your theory doesnt quite fit to this specific setup.

After some more talk with Nessy, there might not have been a radio lock out at all, it seems he went vertical, stalled, and had the plane enter a flat spin ! he then did not manage to recover from the spin (thinking he had no radio control) until Ofir took control of the Tx and flew the Hawk out of the spin. the question still remins though weather Ofir had a lock out too when he was flying... i'll have to have a word with him.

Another thing thats strange is that the plane elegedly locked out for about 5 seconds (!) and fail safe didnt kick in (throttle didnt lower to idle)..