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Old 07-05-2011, 09:37 PM
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Building as fast as I can
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New Product
Competition Airframes Extra 300 SR and SC Double Build Thread

Well its Tuesday night and like I promised last week, I'm starting a new thread on two new planes I'm bringing out. Both are close to being the same plane except a wing change on the SC. The SR has a straight LE like an Edge and the SC has a wing like a standard extra 300. Both of these are prototypes and will be flown by Mike Elder and myself. We've been very happy with the flights on the big 300 and these two models will be a great addition to the line up of planes I'm bringing out. The SR will be outfitted with a DA 170 on cans. The SC will be piloted by Mike and he hasn't told me yet what he will be installing in his plane. Here are the specs on both planes. Please don't hesitate to ask questions. Please enjoy the thread.
123" wing span
2850 wing area
111.5" length. spinner to rudder
weight 38 lbs + -
150cc-170cc /200cc if your insane :-)
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Old 07-05-2011, 09:38 PM
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Looking forward to it Rob! Enjoyed meeting you at Nall btw.
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Old 07-05-2011, 10:31 PM
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Old 07-05-2011, 11:40 PM
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Old 07-05-2011, 11:44 PM
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Old 07-05-2011, 11:49 PM
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Can't wait to watch this...thanks Rob!!
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Old 07-06-2011, 12:50 AM
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Very nice. I'll be following this thread with interest. Pardon my ignorance, but are these going to be kitted?
For us international rc flyers where shipping costs and custom duties are sometimes double the cost of the airframes I think good kits will be great alternatives to giant airframes.
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Old 07-06-2011, 01:51 AM
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Quote:
Originally Posted by bss_flyinggiants View Post
Very nice. I'll be following this thread with interest. Pardon my ignorance, but are these going to be kitted?
For us international rc flyers where shipping costs and custom duties are sometimes double the cost of the airframes I think good kits will be great alternatives to giant airframes.
+2
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Old 07-06-2011, 06:12 AM
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Quote:
Originally Posted by bss_flyinggiants View Post
Very nice. I'll be following this thread with interest. Pardon my ignorance, but are these going to be kitted?
For us international rc flyers where shipping costs and custom duties are sometimes double the cost of the airframes I think good kits will be great alternatives to giant airframes.
Yes , these will be kitted along with all the planes i have planned to release.
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Old 07-06-2011, 06:27 AM
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Very Cool Rob.
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Old 07-06-2011, 07:17 PM
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Old 07-06-2011, 08:13 PM
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You're going to find that it doesn't take very long to build one of my kits. They were designed so that anyone of any building skill can build one. Just follow this thread and you'll be just fine. The first thing I like to do is glue the upper and lower stringers together so while they are drying you can build the motorbox. So first grab four 3/8x3/8 bass stringers and cut them at least at a 45* angle. This gives you more glue area. Repeat this step for the 3/8x3/8 balsa stringers also.
You will need the LH and RH motor box sides and the F-1 and F-2 formers. I use nothing but Titebond glues on my planes. You can use whatever you are comfortable with. Take the F-1 former and glue it to the RH motor box side as shown. Then take the F-2 former and glue it to the RH motor box side. Then take the LH motor box side and glue it to both F-1 and F-2 formers. You might want to use some tape to hold them temporarily till the next step. Next you need to glue in the pipe tunnel cover. The grain of the wood is ran so that it will bend to get it in between the motor box sides. This piece also will be used for your throttle servo, ignition, regulator and ignition battery. You can use clamps to hold these parts together.
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Old 07-06-2011, 08:30 PM
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Next you will install the fuel tank tray. This can only go in one way. You'll find out that most of the parts are one directional so there won't be any guessing. After you have glued that in you'll need the front tank support. Next you'll need to glue in the firewall. You'll want to do this while the glue is still wet on the pipe tunnel. You'll have to spread the motor box sides out a little to install the firewall. Then clamp as soon as possible. Next will be your landing gear plate. This is one part that isn't cut directional, it can go in backwards so make sure you read the laser etching that says front.
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Old 07-06-2011, 09:00 PM
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Onward we go, Next we glue on the F-3 former. Take your time here, there are alot of points to glue to. Start on one corner and work your way across. Next you'll want to flip the motor box over. Take a small piece of triangle stock and cut it to length along the firewall. This will support the front of the pipe tunnel to the firewall. Next you'll need the motorbox bottom and the motorbox chin. Glue the chin piece in first then the small motorbox bottom piece. Tape the sides and clamp where necessary.Next we will install both firewall supports. These are two 1/2 x 3/4 hard wood supports. You may have to sand these for a perfect fit due to the motor box having thrust built in. Measure from the top and the bottom roughly a 1 1/4" on each side and pre drill a pilot hole in the middle of the wood. Once you have pre drilled the holes, add your glue and reinstall all four screws. Make sure the wood is below the sides so the top can be glued on. Now your going to glue on the cross support at the top of the F-1 former. You can glue this in at anytime when your are building the motor box. Check the fit before gluing.
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Old 07-06-2011, 09:05 PM
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Looking forward to building one of the kits! Take care.

Jason
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