Electronics > Beginners

DC motor for paper model airplace

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roadkill367:
Here is what I have so far.

AlcidePiR2:
https://www.kickstarter.com/projects/393053146/powerup-dart-app-controlled-paper-airplane-with-tr?ref=user_menu

james_s:
It seems most of the people answering here are assuming a flying model while it sounds like what you want is just a display model with a spinning prop. You can get small gearhead motors that spin at a much lower speed than a direct drive DC motor. Cheap ones are available from China, I would suggest using a pair of AA batteries for power. Much cheaper than 9V.

Ian.M:
Its going to have to survive abuse like the kid trying to turn the propeller by hand, so a gearmotor isn't a great idea unless you can arrange it so there is a friction clutch between the motor outut shaft and the propeller.

An alternative that wouldn't mind the propeller being held or manually turned while its running  would be a low voltage miniature stepper motor, + driver board and a MCU to generate the stepping signals, with PWMed current control to limit the torque.   It could all be powered from a single 18650 cell based USB powerbank, providing 5V for the MCU and motor, or 4x AA and a LDO regulator just for the MCU to limit its supply to 5V.   If you've done anything with Arduino, it shouldn't be too tough to get a suitable pulse sequence out of an ATtiny MCU, or use whatever low pin count, 8 bit MCU + toolchain you prefer. 

james_s:
That's making it waaaay more complicated than is necessary. Lots of gear motors don't mind being turned by hand, gear motors have been used in kids toys for many decades.

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