credence,

Thanks for the link.

Im surprised it worked out as well as it did. I really thought a 40 sized plane would be under powered and require more batteries.

You said it was overpowered with the batteries in series. I wonder how it would have flown with the batteries in parallel to give longer flight times.

You also mention that the trainer runs well on only one 3S pack. What sort of flight time do you get with that. Could you put 2X 3S packs in parallel to increase the flight times without throwing out the trim.

Perhaps E flight with 40 sized planes is closer than I thought. Of course my Trex 450 batteries are only 2200Mah 3S, but if flight times were reasonable with two in parallel.

Quote "Yeah, i'm definitely my own best customer ". Reminds me of a story I heard about a wealthy person buying a Jewelers shop in London. Turnover and Profits were high, but dropped off considerably for some reason after he bought it.
He may have finally realised that he was its largest customer before he bought it, spending several million pounds a year.

Will look out for the Eheli review.

Cheers