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Posted by coreman | Jan 13, 2016 @ 04:52 AM | 4,314 Views

This version shrinks the popular Yak55 to a 67% size that allows it to be used in a smaller indoor venue while retaining all the great Leadfeather Yak55 qualities. With the power system we sell the weight comes in under 90g and using 180mah 2S batteries you get a great flying plane for small gymnasiums for the winter that is fully capable of flying outdoors in the better weather. We have also shrunken our standard paint scheme and they are available in the same rainbow of colors popular with our standard 32" Yak55s. You can order it here.

The 6mm EPP Mini Yak55 YouTube video playlist.

The completer package currently includes:
  • C1822 Micro brushless Outrunner 2100kv (14g)
  • TURNIGY Plush 6A /.8bec/6g Speed Controller
  • New Power 5g Servo (qty 1 - Aileron)
  • New Power 3.7g Servo (qty 2 - Rudder & Elevator)
(these components used standard JR/Fut compatible connectors)

Posted by coreman | Jan 13, 2016 @ 04:37 AM | 3,797 Views
Joel "MetroGTI" Dirnberger has tinkered with the BluFO platform yet again by doing up a version with twin motors. In doing so he has addressed several challenges and gone with a more traditional tractor design. Because he kept the main footprint the same and just extended the dorsal fins forward for motor pods, a higher KV motor was required to turn smaller diameter props for clearance. Another added benefit to the two motors is the ability to use differential thrust to give good yaw control. This kit is now shipping in both plain and vinyl graphics versions with a completer pack available shortly.

Posted by coreman | Dec 28, 2015 @ 09:57 AM | 3,773 Views
Alan "FastAlJr" Mostek flying the prototype Mini Yak55 from RA Cores at the Watervliet NY Dome at the Watervliet Wind Warriors Christmas Party. Video taken by Stephen "SAWatt" Wattenberg

Mini Yak55 12 20 2015 (6 min 42 sec)

Size comparison between the standard 32" Yak55 and the new Mini Yak55 at 22"

Posted by coreman | Dec 21, 2015 @ 06:33 AM | 4,205 Views
Merry Christmas to all from RA Cores!

Photo by Stephen Wattenberg
Graphics by Shawn P Campfield

Thanks guys
Posted by coreman | Aug 28, 2015 @ 03:58 PM | 5,046 Views

We have just announced our kit and will begin shipping monday and they will be available at the NEAT Fair.

Kit thread at

Product available at
Posted by coreman | May 27, 2015 @ 05:37 PM | 5,682 Views
Joe Nall was awesome. I pretty much sold out of everything I brought. I have restocked and am all set for a couple of small local events in June.

June 6th and 7th I will be at the Ellis Grumer Electric Fly and EDF Meet in Easton PA. Check it out in this thread

The weekend of June 20th I will be at the Warwick NY Fun Fly. This is a great event because it combines a Fun Fly with a Float Fly area so you can have the best of both worlds as well as awesome night flying. Check it out in this thread
Posted by coreman | Apr 29, 2015 @ 02:23 PM | 5,704 Views
We will be a vendor at Joe Nall again this year. The trailer will be packed and the products inaccessible on tuesday (5/5) for the trip. Anything ordered after monday will not be shipped before we get back monday May 18th. If you are attending Joe Nall be sure to stop by our booth
Posted by coreman | Apr 16, 2015 @ 07:00 AM | 7,623 Views
Thank you for everyone that stopped by the Toledo booth to say hi and especially Jim T for more nice pictures. We will have a booth at Joe Nall and be there then entire week. We are also Glacier battery dealers now and so if there are any particular sizes you would be interested in getting, let me know prior to 4/25 and I will bring them to the show. I will have batteries for the RTF Yak55s and BluFOs I will have in the booth again this year. If there are any of our products (or specific colors) you want to be sure to get, drop me a message and I will set them aside for you

Steven McCormack just maidened his BluFO he got at WRAM (the snow is finally melted) and will be flying it down on the 3D line so check it out. Flying 5' off the deck on the maiden sure speaks to the stability. I can't wait to see what he does when he gets comfortable!

Posted by coreman | Feb 16, 2015 @ 02:01 PM | 7,783 Views
I will be packing for the WRAM show on wednesday and will be in the National Balsa booth through sunday. I will begin processing new orders tuesday 2/24. If you happen to be attending, stop over and say hi!
Posted by coreman | Oct 24, 2014 @ 06:36 PM | 6,519 Views
Another event season in the books. I have returned from HHAEFI and caught up on orders from while I was gone and now is the time to prepare for Christmas and start the "new models for next year" process.
Posted by coreman | Oct 11, 2014 @ 06:33 AM | 6,770 Views
We will be leaving for HHAEFI in Georgia on tuesday 10/14 and returning 10/21. We will process new orders when we get back. If you are at HHAEFI stop by and say hi
Posted by coreman | Sep 09, 2014 @ 05:35 AM | 6,825 Views
Final packing day. Get the groceries packed and the trailer all tied down and leave tomorrow morning early. I will be out of touch until sunday night once I get there. If you are going to be there, stop by, I'll be on the north end of vendor row
Posted by coreman | Aug 25, 2014 @ 07:42 PM | 6,922 Views
Whether it's flown for 3D or for sport, this compact model delivers some serious fun.
Review By Ralph Squillace

The full review can be read here

Posted by coreman | Jul 07, 2014 @ 05:12 PM | 8,134 Views
Mica Mccarthy Did a mini review of our 9mm EPP Yak55 kit

RA Cores Yak 55 review (6 min 1 sec)

Posted by coreman | Jun 10, 2014 @ 12:44 PM | 7,607 Views
Robert Viskil of did a nice review of our 9mm EPP Yak55 kit

RACORES YAK55 First Look (4 min 32 sec)

Posted by coreman | Apr 28, 2014 @ 12:23 PM | 8,571 Views
The Be Be Norman from Laine's Planes is now available and shipping. We are also offering a completer pack for them as well.

Check them out at
Posted by coreman | Apr 06, 2014 @ 07:58 AM | 8,370 Views
Heading to SEFF in 24 hours. Won't be back until the 15th so shipping will be paused until then. Things will ship in the order they were ordered. Stop and say hi if you are also at SEFF!