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Jun 29, 2019, 08:18 PM
jackerbes's Avatar
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It sounds like you are off on a project that could prove very useful and interesting.

You could use another pair of servos or a single servo and use a portion of the the foam at one of the steps as spoilers.

Here is the actual dimensions that worked for me on the KFm9.

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Jul 06, 2019, 09:34 AM
Registered User

When tip chord = 0 ?

I'd like to build something this shape, that has a true triangular form (i.e. wing tips coming to a point - not truncated):

Delta RC plane (2 min 1 sec)

For a KFm-2 or KFm-4 wing, where should the step run out at the wing tip where the chord goes to zero?
Can you see any problem running the step from (say) 50% at the root chord all the way out to the pointed tip?

Jul 06, 2019, 09:39 AM
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Gregco10's Avatar
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This works great if that helps. The step ends at the hinge.

Edit: I just watched that video, if you want nice low speed maneuverability build the FT Vector, build it it really light with a light setup. It will have excellent low speed high alpha plodding around capability. It has a low mounted rudder just for that type of flying.
Last edited by Gregco10; Jul 06, 2019 at 09:54 AM.
Jul 06, 2019, 02:09 PM
flyin' fool
goldguy's Avatar
Like this?

There's a lot of similar designs in the plans list.
Jul 07, 2019, 04:55 AM
Reap the wild wind
headlessagain's Avatar
I made a couple of KFm puller deltas. The first was from EPP and the second from Depron. Both flew very well being quiet and aerobatic.
EPP RC Flying Wing (3 min 12 sec)


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