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My Balsacraft Blenheim flies very nicely on it's cheap Speed 600 brushed motors. I reduced weight and the horrible tip stalling tendency by fitting a 2S 2200mAh LiPo pack.

A thread doesn't end just because the OP's question has been answered, IMO. Threads evolve and active discussion is what keeps a forum alive. The forum would be a very sterile place if each question asked were just answered with no discussion and then closed. When discussion moves on to principles underlying the advice given, the opportunity is there to learn something and to have one's assumptions tested and perhaps refined. Otherwise every motor selection question could be answered by the default "Just ask George at 4-Max". The old adage "Give a man a fish and you feed him fir a day, teach a man to fish and you feed him for life" springs to mind. Discussion is good and discussion of the fundamentals is a learning opportunity.

Today I tackled the cowling. First I cut four pieces of 1/4 inch block to rough sizes and got the angles to somewhere that I thought would work, glued these together and left overnight to dry The motor standoffs fouled the cowl at the top slightly so a little trimming was required. I wanted to rebate the nose ring as I thought it would be easier to cover when the time comes, I used a Dremel for this with a small channel cutter which worked really well. Cooling is obviously a consideration so I cut the bottom of the nose ring, which doesn’t look to pretty, and fitted an air scoop from Slec. Carved away a bit more balsa and I think it will do the job very nicely. You can clearly see the extra hole in F1 that will help the airflow, just need to cut an exit somewhere near our pilot, Harry (named after my eldest Grandchild) It looks a bit lop sided in the picture, but when the prop and spinner are on its looks OK, ish! It looks like Ballerina has a cheeky smile or the beginning of a double chin which I like a lot !! The front end looks a bit bulbuse in this shot, but it looks ok, as Peter says “from 50 feet” she’s gonna look like Darsey Bussle ? Next on the list was cutting and fitting the hardwood braces for the servos, I used some liteply for the supports and some 1/4 inch hardwood spars glued in with some Aliphatic, which is my go to glue, small amounts needed for a very strong bond and great gap filling if you’re not so good with the razor saw! So the fuselage is nearly there, a few bits to do but I need to clear the decks in preparation for the wing build, which I am really looking forward too.

All done I hope Thanks again ?

Rather small inlet for cooling the ESC IMHO and with the servos in the tail you might make provision to shove the battery forward (running 3S2200 and its nearly fully forward/servos in the middle of the fuz for mine). Nice build ?

That's an amazing difference. Just fit to the fuselage and blend it in. ?

Hi all, the best about using the 600 brushed is the weight where it is needed and only one speed controller is required. I lost mine in a turn when the battery was low, it done as Alan said, flick into a spin from which it did not recover. I don't know about modern brushed speed controllers but when I last used them lipo's were just coming out and the power cut off for lipo's was too low so I did not use them until I went brushless. I still have part of a Blenheim kit in the loft and a drawing for the missing parts. A good winter project?

David your prop diameter is of course limited to the distance the centreline of the nacelle and the fuselage side. I think you will struggle to fit anything bigger than 8" diameter props IIRC. My reason for using 2S batteries is simply to do with power to weight ratio. Having flown the model with the original 7 cell nicad pack it certainly had plenty of power but was heavy and was easy to flick into a spin on a bad launch or if letting it get too slow especially when turning tightly. I reasoned that around the same power but less weight would make the model less critical to fly and so it proved. I was of course able to balance the model using the small and light 2S pack by retaining the heavy 600 brushed motors.

"This is the first time I have come across the use of a Taco on an electric motor" WARNING, do not apply Mexican food to electric motors! ?

Peter I am not sure what point you are making, but I don't think anyone ever disagreed that a motor operates by the interaction of magnetic fields. It was your statement about watt meters that people were trying to correct. Dick

Glad the video has answered your question Bees ? Here are a few photos of Tim's Gyroo taken last Sunday, it was early on and a bit overcast and drizzly so they are not great. He had a couple of flights with his and does throw it about a bit!

A small amount of progress showing the airframe being glassed, the (own-design) pilot carved from polyurethane foam, a bit of checking the surface finish with a sprayed on guide coat of paint and the first coat pf primer rollered on!

You don't need a Mod to start the thread for you Peter, you are free to start threads yourself, and discuss to/till ? your hearts content