Conclusion
It couldn't be a better time to build pager powered micro planes. We
now have the 4.5 ohm Didel "super pager" that is at a sweet spot in terms
of what we need from a pager motor. It really is the pager motor of choice.
Accept no substitutes. We have the new E-Tec 90 mAh LiPoly cell which
is perfectly matched for this motor. It is light and compact and has
good discharge capabilities. We have a variety of sources for gears and
gearboxes for pager motors, as well as prop adapters that allow a wide
variety of props to be used with them.
I have presented data that will
allow matching the 4.5 ohm pager with a good gearing and prop combination
for the intended application. If you want to get your feet wet in pager
powered planes, the Quick Junior plans in the December 2003 Inside
Story column is a good plane to get started with. After that an appropriately
sized and light semi-scale plane is a possibility. The gym ceiling
is now the only limit to what can be done with pager powered planes. |