|Jul 07, 2008, 10:07 AM|
Parkzone T-28 Trojan modification thread
I looked for a thread that covers just modifications to this great flying model and couldn't find it.
Just a whole bunch of "I have to get one" and "it flys like a dream"
SO. lets keep this one on modifications.
Originally I bought the plane to do stupid things with due to it's forgiving nature.
I really don't want to risk my scratch built models "having fun" and this one should satisfy my watch this moments.
The first stupid thing I did was leave the model in the car when I went in the hobby shop. I was only there for 20 minuets but came out to see this.
Brand new plane with only three flights . . .melted.
So don't fault me for cutting on a new model after all I didn't start this.
|Jul 07, 2008, 10:07 AM|
With the canopy off the first thing to do is get rid of that huge Charlie Brown looking guy.
I'm not to happy about having to do the tooling for a replacement canopy but it was faster than trying to locate, order, and receive one.
The next thing was to put a more proper sized guy there and why not make it two?
Micro balloon / epoxy finishing resin filled the spaces in-between the melted bumps.
|Jul 07, 2008, 10:08 AM|
This is a Navy plane and the approaches look too airforce to me so I added fowler flaps.
It was simple to cut the foam free; the trick is to cut it at an angle using a blade guide. This one is balsa sanded to 14 degrees. The purpose is to form the separate airfoil a fowler flap has.
With the flaps taped in position I used a dremel tool to dig out slots for the hinges.
A piece of aluminum tubing aligns them while the epoxy sets up.
A sharpened piece of piano wire was used to run the push pull wire to the bell crank bays. I'm not going to lie, it was a pain to get them in position.
On the good side the main gear plates were not exactly bonded in place very well.
|Jul 07, 2008, 10:09 AM|
What good is steep slow approaches with out a retractable tail hook?
This was as easy as taking a bite out of the tail with a razor and sanding the foam to shape.
When you cut into the fuselage a hole is formed leading all the way to the servo mounts.
All I did was laminate a 1/16 wire between a pair of light ply hooks. I cut another pair to match the fuselage and drilled them for a pivot pin.
From there it was a matter of running a push pull wire to a separate servo. I didn't support the wire because I wanted it to have some spring to it and it helps save the servo.
|Jul 07, 2008, 10:09 AM|
The stock motor looks fine but I thought mine looked better so I formed one and installed it with silicone. not much to say here except that it fit well.
I stretched a line across the parking lot with a small sand bag at the ends. Small foam beads hold the line 1/4 inch above the ground so I can catch it. This system worked well years ago with my SIG Kouger so I had to try it with a park flyer.
I have video of my attempted "deck landings" and I'm trying to edit out the totally lame ones.
Then I'll have to learn how to post it.
Not to worry I'll post the funny ones too.
|Jul 07, 2008, 11:03 AM|
The pilot part number is 1005-14 available from DARE designs.
That's if that's all you want, but the better deal is through me.
The problem is I don't want to do custom orders.
I didn't plan to make a "up-grade" set for this model but sets are easier.
So. . . . .
Canopy made from .030 PETG , Two pilot figures and a cowl with the dummy motor molded in and made with thicker material .040
One box ready to go for $18 shipped in the US.
Check or money order will be fine
If you want to use Pay pal the account is email@example.com
Please be sure to make a note of the parts you want.
Contact me at firstname.lastname@example.org if you are out of the US for shipping details.
|Jul 08, 2008, 10:46 AM|
United States, TN, Signal Mountain
Joined Sep 2007
Wow! I'm impressed. You make is sound so easy! Makes me want to spend time in your workshop learning the tricks of the trade!
|Jul 18, 2008, 11:54 AM|
sorry it took so long.
The only change to the cockpit was cutting the small hump behind the pilots seat away to make room (and a panel) for the guy in the back.
|Jul 18, 2008, 06:55 PM|
Joined Jan 2008
I've installed a new 3536c turnigy and man this plane rips I haven't found a fave prop yet.....it's between 11x7 or 10x7....if flys well with both one climbs and the other is fast.....and its fun with the flaps
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