Yes, it is a profile. But that does not mean it should look like it has jumper cables attached to it and a transistor radio duct taped to the wing as a big ugly lump.
Well, you could take this project as a challenge to figure out how to make it all look good! Just off the top of my head, making a cowling to go over the right front quarter of the fuselage to hide all that stuff would be nifty, if you didn't mind the time & weight.
So what I'm looking to see is will the set-up for the baby clown work on a baby magician with a 30 inch wing. Or do i need something smaller like the miss ashley ?
In the "List your setup" thread (
http://stunthanger.com/smf/index.php?topic=12044.50) there's a bunch of examples and some pictures. I did a summary of this (toward the bottom), and it seems that the 1/2A plane's
estimated consumption is around 8 - 10 watts/oz. You probably want to size the motor at 25% to 50% bigger. To calculate the battery capacity used go with
capacity in mAh = (1000 / 60) * (flight time in minutes) * (power in watts) / (nominal voltage)
note that nominal voltage = 3.7 times the number of cells, i.e. 11.1 for a three-cell pack, or 7.4 for a two-cell. Note also that you'll want a pack that's substantially bigger than the capacity you think you'll use -- you want to end up using about 75 - 80% of the pack capacity, so take the above number and multiply it by 1.3 or so.
I.e:
For a 10 oz plane, expect to use 80 to 100W. For six minutes you'll use 480 to 600 watt-minutes (funny units, yea yea yea). With a three-cell pack that works out to a capacity of 720 to 900mAh
used. You don't want to drain the pack dry, so figure on a capacity of 950 to 1200 mAh. You also don't want to work the motor on the edge of it's capacity (and you want some power to spare in case your plane is a bit porky), so figure on a 120-150W motor.
Forgive me if the math isn't clear -- I'm rolling this off the top of my head. I trust my numbers, but I'm sure it could be expressed in a way that's easier to understand.