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similar sized motors can have very different armatures, especially wire size and number of turns, which greatly affect output as a generator, more turns will equal higher output voltage (just like more turns in a transformer secondary equals more output voltage). you can sometimes count the...

my need is to learn Solid Works !

it was published in London in 1968, I got my copy a long time ago from an Amazon listed used book seller, it appears they have a couple listed now too

folks should be aware that 1) there's nothing "liquid" about this engine 2) there's nothing "new" about it either, its case 3.2 on page 20 of Ansdale's book "The Wankel RC Engine, design and performance" so the people espousing this engine are making utterly absurd claims. all that aside, it...

the only constant in life is change :) !!!

you'll probably want to get what you were looking at earlier for now, then grab one with a hose when you see one show up on eBay, they do show up but not all that often...

the tank has to remain upright for the regulator to work correctly (regulator only works on vaporized gas, does not work on liquid), so this type only works if you want the flame pointing upwards or sideways, it does not work so well in the typical hobby application where you want to point the...

Stay away from Oxy-anything, its totally unnecessary, costs a lot more, and you're very likely to melt the parts you want to braze, I use air-propane and air-MAPP :-( !!! I have some Harris black paste but never use it, only the white stuff. The white turns clear when it melts and you can...

if they are AC induction motors they can't be used as is, but you might be able to replace the rotor with a custom made one containing magnets

I still think my explanation is clearer :-) !!!

we are in 100% agreement :-) !!!

Dave, I'm not really sure you've understood the point I am making, we (at least I) "time" our engines by turning them over by hand and watching the LED, not by cranking them at running speed, so the "dwell" when turning over by hand is on the order of 1/8" (magnet width) divided by PI times...

this has probably been noted before, but sometimes those of us with flakey memory need reminding... the improved circuit with time-out requires a possibly non-obvious technique to properly set the timing, if you turn the engine over by hand in the correct rotation then the spark occurs when...

you seem to be implying that he is in mental decline, that's not a good formula for rational decisions, it seems everyone is being forced to wait until he passes away and his estate tries to sell the magazine to someone that will make it available, this makes no sense, I won't do it myself but...

this has been the situation for a number of years, with no apparent reason and no apparent plan for the future, unless you know something I don't ???

we're here to help, welcome to the group, :) !!!

good point, absolutely true !!!

I think what Green is saying is about ignition / combustion / expansion stroke, yes those are unknowns. but for compression the formulas are exact, the only things that can affect them are gas loss if the rings and valves aren't sealing correctly, and heat loss through conduction by the...

for a flat topped piston and flat topped combustion chamber the diameter does not matter, only the stroke and TDC head clearance. The formulas for pressure and temperature are up above in previous posts, the two are physically / mathematically related, you specify one and the other is implied...

there are a LOT of details in a Hansen A-frame engine to work out, I suggest starting with a spark ignition gasoline engine, then proceed to diesel, IMHO, YMMV, yada, yada, yada :) !!! (for example, you are unlikely to want to cut your own helical gears, so what's available in the small size...