Hi all,
I promised an update on my electric Tutor build and the project has progressed to test flights.

But what started out as a simple electric conversion of a kit (given by a close friend) back in June turned into a major project.
As mentioned in my post back in June I am returning to C/L after an absence of many decades, and many thanks to all who offered their advice on suitable power trains for my Tutor.

Unfortunately the donated kit was missing the plan and a number of essential parts.
I managed to download a PDF of the plan from the internet and traced it into AutoCAD with a view to making the missing parts, but I had set myself a target weight of 32oz and on closer inspection most of the wood in the kit was very heavy, so the decision was made to start from scratch, build in some extra lightness and incorporate the Dave Hemstrought mods that I discovered whilst searching for the original plan.

I spent most of July producing cutting files for my homemade CNC router and August gluing it all together.

What I now have is a very hybrid Tutor
Specs are :-
Span - 47"
Area - 435sq"
Weight - shade under 34oz (with 4S 2200mAh Lipo)
Power train is a Turnigy D3536/5 1450Kv Outrunner, APC 9x4.5 Eprop, Turnigy Rotostar 45A ESC and 4S 2200 25C Lipo.

Because I will be mainly flying alone and I still suffer from dizziness I decided to build a control system, that will allow me to land when I need to, instead of using a timer I piggybacked a 2.4Ghz receiver on the ESC and built a C/L handle with an inbuilt Tx giving on/off control, throttle and power boost.

Like I mentioned earlier this turned into a MAJOR project.

I have had a couple of flying session on 52ft lines, it circulates like a rat racer and pulls like a train on full throttle, luckily I can throttle back and tame the beast, but I haven't managed to do anything but level flight and some climbs and dives.
It seems very stable and even a little insensitive so maybe it is nose heavy or needs more throw on the elevator

I think my next moves are to try 60ft lines, experiment with the C of G and play with the ESC governor  (maybe try a different motor and prop with a lower Kv.)

Any advice and comments will be gratefully accepted.

Regards Geoff

PS hope the pics I attached appear

Hi MM, thanks for the nice comment, but when I look at the pictures I realise they all look the same. I must really try and think up a new colour scheme for the next one.

Geoff

Hi Geoff,
I've used many pusher props (CW from the front) and have not found any real advantage. I have found a few disadvantages when the prop or thrust line is above the wing like in the case of your model. I tend to build in-line models and they work o.k with the pushers, but once properly trimmed with both props, I don't see any real advantage with pushers besides maybe a bit more outward pull on take-off. Others may answer differently though.

Keith

Now you know why my RC stuff is collecting dust.   Glad the plane is working for you.