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Aug 22, 2019, 10:47 PM
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Finally moving along on the covering again, finished the ailerons and now on to the wing.
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Aug 24, 2019, 10:51 AM
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A note on hinges


I may have detailed this earlier in the thread, but heres a quick review. This kit called for CA hinges which I do not like, so I have been using Dubro nylon hinges instead. After I built the control surfaces I slotted them with the GP hinge slotter machine and slotting tools to get a perfect fit or as close as possible, then after covering I cut slits in the covering and took the trim iron to open the slots and melt the covering, then sand each hinge a bit and clean with denatured alcohol and use 30 min epoxy to glue into the control surfaces first, let cure for 24 hours, then into the wing or fixed surface last. I also put a few drops of machine oil on the hinge part so the epoxy wont stick to it and as you install the hinges I carefully wipe any excess epoxy with cue tips and alcohol. This method results in free moving control surfaces that should last the life of the model.
Aug 30, 2019, 08:29 PM
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Belly pan done, Iím at a snails pace here with working on the house.
Sep 01, 2019, 08:53 PM
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Finally got off the roof of the house doing repairs and getting ready for the rainy season and got some covering done. Now, for the flip side, you will see wrinkles in the covering now, but the final shrink @ 300F wont take place until both sides are covered so as not to warp the wing.
Last edited by nhk750; Sep 01, 2019 at 09:00 PM.
Sep 03, 2019, 10:02 PM
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Finally got the wing covered, I had some air bubbles and minor issues on one of the leading edges underside, but I managed to work most of the issues out with some pin holes and heat and it came out ok. Now I just need to finish some details and mount the ailerons, then move on to the decals.
Sep 04, 2019, 10:36 PM
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Got the ailerons trimmed out and ready to epoxy into the wing.
Sep 05, 2019, 06:36 PM
I just want to go fly!
walter3rd's Avatar
Nice colors! Love the yellow nose.
Sep 07, 2019, 02:46 PM
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Thanks! Ok, back at it and managed to get the ailerons epoxied in, linkages soldered, installed and adjusted. The wing is flight ready, but still needs decals.
Sep 07, 2019, 11:05 PM
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More work getting done tonight and we just lost power in a big thunder storm. I obtained some 3m clear vinyl protectant material off of Amazon and cut it to fit the bottom of the wheel pants. This will help the paint endure a little longer when getting hit by grass during ground operations.
Also working on getting the canopy attached tonight and the Sullivan tail gear finished.
Last edited by nhk750; Sep 07, 2019 at 11:19 PM.
Sep 08, 2019, 08:23 PM
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I finished it! Started on Oct 1rst, 2018 and finished Sept 8th, 2019, so about 11 months, but I moved in the middle of all this so that really slowed things down. I just need to do some motor testing and measure the Watts with a watt meter, then set up control surface throws and trims, set up weight and balance, ect, ect...The AUP (all up weight, flight ready with battery) is 4,100 grams (9.039 lbs). So, that is a little on the heavy side, but this is a conversion and many reinforcement mods were made to accomidate the extra weight. You may see some white around the canopy as the glue is still curing. Were probably looking at a maiden flight in a few weeks as I now have many other projects for the house in progress.

I also change the Red Bull color scheme a bit...artist's license.
Last edited by nhk750; Sep 08, 2019 at 08:28 PM.
Sep 08, 2019, 08:39 PM
team sleprock
whiskykid's Avatar
turned out really sweet!

you should have many years of enjoyment with that bird!
Sep 09, 2019, 06:59 AM
I just want to go fly!
walter3rd's Avatar
wow! nice. looks fantastic. great job.
Sep 09, 2019, 10:16 AM
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Thanks guys!
Sep 12, 2019, 10:09 AM
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Update, I performed the weight and balance/cg testing and found it to be tail heavy. I have read this is common for this model and I thought I addressed this while building, but I still needed to add 70 grams of lead to the cowl. I wish I could have done it differently, like add a bigger motor, but it is what it is and in a 9lb + plane that weight wont matter much especially when I should be pushing around 1,800 watts of power. Motor and Watt testing are up next on the list.
Sep 12, 2019, 06:08 PM
I just want to go fly!
walter3rd's Avatar
Awesome! Get it right before maiden that’s for sure. I enjoy the verification process before first flight on all important parameters


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