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Nov 11, 2010, 04:34 PM
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Discussion

Elf 22"/120 sq in-an even larger backyard trainer


this version still handles same motor/6400 brick and cells as the original 18" and the 20" winspan versions. even slower and easier to catch. indoor and no-wind backyard trainer or sport flyer. 48 grams auw. 110 to 160mah cells give me from 5 to 7 minutes flights, even in this cold weather.
with this model and the 20" i mounted the motors with screws for easy exchange, be for testing the other motors, or in case 1 has to be replaced (none so far). i started a thread with details in it, and on the 20" version there are some photos.
as the Elf 20" is painted same way, i added a blue strip to this 1, so i don't get mixed-up.
so far, i can not tell you that 1 version is better than the others. it depends of where and when you fly. for indoor, the '22' is slower, and still with plenty of umph, and does great out there with no wind. the '20' handles a little bit of wind-a breeze, you must say-and does fine indoors, too. the '18' takes some wind, but still does well indoor, although faster.
now, thanks to the help of a friend, we may be able to have CAD drawings and full scale and letter tiled PDF of all these 18/20/22 elves. stay tuned.
the link for more details is here: https://www.rcgroups.com/forums/show....php?t=1337043
Last edited by phil alvirez; Jul 23, 2011 at 04:08 PM.
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Nov 25, 2010, 11:13 AM
QuAd FaNaTiC
Razors edge 29's Avatar
Very nice Phil

How did you add in under camber in the foam?




Quote:
Originally Posted by phil alvirez
this version still handles same motor/6400 brick and cells as the original 18" and the 20" winspan versions. even slower and easier to catch. indoor and no-wind backyard.
with this model and the 20" i mounted the motors with screws for easy exchange, be for testing the other motors, or in case 1 has to be replaced (none so far). i started a thread with details in it, and here below on the 20" version there are some photos.
as the Elf 20" is painted same way, i added a blue strip to this 1, so i don't get mixed-up. see the lower 2 photos.
Nov 25, 2010, 11:36 AM
Registered User
Thread OP

post 16/Elf 18 thread


Quote:
Originally Posted by Razors edge 29
Very nice Phil

How did you add in under camber in the foam?
thanks.
i explain this in full detail in that post, but in few words, press along a line spanwise underneath several times, spacing to match the shape, then gently bend until you get the curve. it remains and adds rigidity.
regards
Nov 25, 2010, 12:35 PM
QuAd FaNaTiC
Razors edge 29's Avatar
Thanks

I'll have to try that!


Quote:
Originally Posted by phil alvirez
thanks.
i explain this in full detail in that post, but in few words, press along a line spanwise underneath several times, spacing to match the shape, then gently bend until you get the curve. it remains and adds rigidity.
regards


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