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Jun 30, 2019, 05:55 PM
flyin' fool
goldguy's Avatar
Thread OP
Discussion

Just Another Delightful Delta?


Not really!

It's a 24 incher at 3.3 ounces RTF with a wing loading of 2.3 ounce per square foot, so a real ripper. Powered by a Racestar BR1306/3100kv spinning a 4.1X4.1 prop on 2S 300 at 42 watts in it hauls. I spent less than two hours turning it out and it flew perfect right off the bench. Maiden it in light wind and then the wind came up for some real fun.

Delightful? YES!!
Last edited by goldguy; Jun 30, 2019 at 09:17 PM.
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Jun 30, 2019, 06:23 PM
IMO ( In My Opinion ) →
balsa or carbon's Avatar
Simply Delightful Delta !
Jun 30, 2019, 06:39 PM
Rough Landing
rainyday101's Avatar
What foam or foamboard did you use? If foamboard, paper on or off?

Post some plans and this will end up being a 500+ page thread!

By the way, those Racestar motors from Bangood are a bargain and real performers.
Jun 30, 2019, 09:26 PM
flyin' fool
goldguy's Avatar
Thread OP
From Carolina Pad, no paper, just paint on one side, it's called Ucreate Board. Bought it at a $$tore here.
Last edited by goldguy; Jul 02, 2019 at 11:45 AM.
Jun 30, 2019, 09:27 PM
flyin' fool
goldguy's Avatar
Thread OP
I plan on a plan as soon as I find my pencil ………………..
Jun 30, 2019, 09:59 PM
Rough Landing
rainyday101's Avatar
Have not seen that at out $Tree stores.

Can't wait to see those plans!
Jun 30, 2019, 11:21 PM
flyin' fool
goldguy's Avatar
Thread OP
All you really need to build, more than I started with …………...

note: .............. The triangle is cut, then the nose chopped off to mount the motor and the bottom spine shape/size is optional.

This was actually a prototype to check out it's ' flyability' and the plan was to build a keeper using EPP.
I bashed it around pretty good today in a hay field and it took it all. So, staying with the cheapo foam as it's easier to build and no CF stiffeners required. Cheep too, less than a dollar to build. Humm, think I'll build a few more.

This wee one flies all the delta aerobatic you can throw at it, including backwards flight and harrier landings. Being a delta that's easy. Because of it's low wing loading you can slow it right down and grease it in for an inverted landing no problem. Just a fun little simple elevon only for maximum fun.

This is definitely and improvement over my Park Lark. Must be the different delta math. Maybe? https://www.rcgroups.com/forums/show...ht=Park%20Lark
Last edited by goldguy; Jun 30, 2019 at 11:30 PM.
Jun 30, 2019, 11:26 PM
flyin' fool
goldguy's Avatar
Thread OP
The motor is 0:0 and the reflex is about 2mm. Tune to taste.
Jul 01, 2019, 12:16 AM
Rough Landing
rainyday101's Avatar
Thanks for the plan. What size servos did you use?
Jul 01, 2019, 12:52 AM
flyin' fool
goldguy's Avatar
Thread OP
3.7 gram. Although any 5ish gram should work.

I thought it earned a few extra stripes after today's success. I also change the Velcro to accommodate 2S 520 packs as well.
Jul 01, 2019, 07:51 AM
Rough Landing
rainyday101's Avatar
On the bottom of the plane, is that a single reinforcing strip running from nose to tip?
Jul 01, 2019, 08:45 AM
Rough Landing
rainyday101's Avatar
Quote:
Originally Posted by goldguy
From Corolina Pad, no paper, just paint on one side, it's called Ucreate Board. Bought it at a $$tore here.
Walmart sells this foam. 22x28 4 pack of sheets for around $3.

Correction, went to Walmart and it was poster board NOT foam board.
Last edited by rainyday101; Jul 01, 2019 at 02:54 PM.
Jul 01, 2019, 09:12 AM
Sokol
JureZ's Avatar
Quote:
Originally Posted by goldguy
The motor is 0:0 and the reflex is about 2mm. Tune to taste.

took the liberty of adding two dimensions, please verify that it is correct.

corrected my root cord mistake
Last edited by JureZ; Jul 01, 2019 at 10:33 AM.
Jul 01, 2019, 09:15 AM
flyin' fool
goldguy's Avatar
Thread OP
One layer full length, one about 3" long to support the ply motor mount.
Jul 01, 2019, 09:18 AM
flyin' fool
goldguy's Avatar
Thread OP
……………. and a bit of tape.
Last edited by goldguy; Jul 02, 2019 at 11:30 AM.


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