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View Full Version : Brushless E-Starter Aerobatic Build Project (Pics)


aclemons23
06-26-2005, 05:50 PM
After finishing my latest kit, the GWS PT-17 and adding brushless power to it, I decided to go back and build another ES only this time do some modifcations to make it a bit more fun. I loved my last one and it really helped me learn how to fly well.

My major goal in this project was to first build a plane that would be relaxing and easy to fly. Next, it needed to have enough power to get me out of trouble and basic aerobatics with ease. Finally, it needed to be able to be stable at both slow and fast speeds and have a decent run time.

This is only my fourth plane I have ever built or flown, so I am still what I would call a newbie at all of this. With that in mind, here is the shopping list I can home with:

E-starter slope glider kit. Himax 2015-4200 brushless motor. 15min epoxy and 1/2oz cloth. Misc wire and better foam wheels. Balsa sheeting for the airlerons.

Lets get starter shall we. Any other tips or questions during the biuild are very welcome.

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To get started on the fuselage - the first things I wanted to do were cut out the battery compartment to allow my 3S Lipo packs to fit, and strengthen the rear tail assembly. Some very minor mods were also made to allow for a tricycle landing gear setup instead of the tail dragger.

Attached, you will find photos showing how the the battery compartment was trimmed and the glassing process for the tail. For the tail, I used several small strips of 1/2oz cloth and 15min epoxy. I then used epoxy to glue the fuse halves together. This was my first attempt at using fiberglass cloth. I thought this would be great practice as I plan on glassing my next plane, the formosa.

I have also attached a photo of the himax motor. I didn't need to purchase an ESC, as I already had an E-flite 20amp laying around.

http://i7.photobucket.com/albums/y283/nitroaddict/EST5.jpg

http://i7.photobucket.com/albums/y283/nitroaddict/EST4.jpg

http://i7.photobucket.com/albums/y283/nitroaddict/EST6.jpg

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Next up to bat was the new airleron assembly. Since I wanted the plane to have a greater aerobatic capability than the stock ES, I decided to modify the airlerons.

I removed the stock foam versions, and replaced them with balsa stock trimmed and sanded down. This will give it a much more rigid control surface, allow for a larger surface area, and also give the linkage a much more sturdy grip and remove the slop found in the foam.

In the attached photos, you can see just how much larger the new airlerons are vs the stock ones.

http://i7.photobucket.com/albums/y283/nitroaddict/EST3.jpg

http://i7.photobucket.com/albums/y283/nitroaddict/EST2.jpg


The next step was to sand the wing and tail surfaces and fill in the mold circles with spackling. Once done, the surfaces were sanded again and paint was applied.

White Tamiya paint was used throughout followed by neon orange on some sections afterwards. This should give some great visability in the sky, and still keep it lightweight, as the lighter colors don't need alot of coverage.

http://i7.photobucket.com/albums/y283/nitroaddict/EST1.jpg

aclemons23
06-26-2005, 05:54 PM
PART 3:

Painting is complete other than the cowl. I installed the new airlerons and linkage. Rather than use a large servo for the airlerons, I used a micro from JR and fashioned a mount from wood popsicle sticks. Below you will see the wings mounted and the servo.

http://i7.photobucket.com/albums/y283/nitroaddict/ESS1.jpg

http://i7.photobucket.com/albums/y283/nitroaddict/ESS2.jpg

PART 4:

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Next was the installation of the landing gear. This was done by using the rear mount normally indicated in the instructions as not used. I installed the normal gear in the rear mount as you can see in the photos. I then fashioned a front landing gear wire as such: Look at the first photo.

Finally, everything was epoxied into place and allowed to dry.

http://i7.photobucket.com/albums/y283/nitroaddict/aa1.jpg

http://i7.photobucket.com/albums/y283/nitroaddict/aa2.jpg

http://i7.photobucket.com/albums/y283/nitroaddict/aa3.jpg

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aclemons23
06-26-2005, 05:55 PM
PART 4:

Well, I got the tail feathers mounted and trued. They came out quite nice. I used some spackling to fill in the gaps, and it came out decent but not perfect. Oh well, it at least looks considerably better than stock.

Here are some photos of the plane wth the wing and cowl placed but not mounted.

You can also see the radio compartment in this photo. I used some double sided tape and some bass wood to mount them in. Very simple yet effective.

http://i7.photobucket.com/albums/y283/nitroaddict/ee1.jpg

http://i7.photobucket.com/albums/y283/nitroaddict/ee2.jpg

http://i7.photobucket.com/albums/y283/nitroaddict/ee3.jpg

aclemons23
06-26-2005, 07:18 PM
Well - The build is complete - here are the final photos:


POSING TIME!!!

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http://i7.photobucket.com/albums/y283/nitroaddict/str1.jpg

http://i7.photobucket.com/albums/y283/nitroaddict/str2.jpg

http://i7.photobucket.com/albums/y283/nitroaddict/str3.jpg

http://i7.photobucket.com/albums/y283/nitroaddict/str4.jpg

http://i7.photobucket.com/albums/y283/nitroaddict/str5.jpg

t-turley
06-27-2005, 09:07 PM
That's a nice trim scheme. I'm about to remotor my ES with an outrunner.

Tony Turley

aclemons23
06-27-2005, 10:35 PM
t-turley - I run a himax outrunner on my GWS PT-17 - love it alot. Great efficency, good runtimes.