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Jul 11, 2019, 02:46 PM
I meant to do that - no really
ImpactSpecialist's Avatar
Nice simple but effective contrasting scheme. Like it!
But...

...Are you sure it wasnít inspired by the carpet (photo 12) rather than the twin Yak110
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Jul 11, 2019, 03:22 PM
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Late99's Avatar
Thread OP
Hehe, pretty sure.

I did another test assembly to check (once again) that everything fits ok and to get some extra motivation to continue with the work. Also cut (or actually burned with a soldering iron) the servo slots & other required holes in the wings & horizontal stabs.
Aug 20, 2019, 03:26 PM
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Late99's Avatar
Thread OP
Uuuh, I'm way overdue with this. Summer was just too busy with all the holiday stuff to do. I've been pushing the build forward, but just haven't had energy to sit in front of computer to update the progress. And of course there was also Wings over Europe event last weekend...

To the subject...

After covering the wings I finalized some details with the fuse. Such as exit air deflector from depron with black oracover on bottom side and also inserted string to pull servo cables later on to the rear fuselage. Also had to fabricate places for canopy latches. Then I also inserted servos to the wings & elevators. Just didn't have too much motivation to start the fuselage covering.
Aug 23, 2019, 08:55 PM
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Aeroplayin's Avatar
Just found this thread.... very nice repair.
Aug 24, 2019, 02:11 PM
I meant to do that - no really
ImpactSpecialist's Avatar
Quote:
Originally Posted by Late99
Pictures tell the story best. Normal system: starting from tail and then working to nose and bottom. Due to color scheme couldn't quite do the "top to bottom" order, but that shouldn't be a problem.

In real life this took several days as I worked quite slowly (= didn't have too much available time per day to work on the plane).
Very nice and very Yak!!
Aug 25, 2019, 04:08 PM
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Late99's Avatar
Thread OP
Thanks, both of you!

I'm still missing the motor... And I don't want to finalize the firewall / motor mount setup before I have been able to really test it with motor. I'm currently working with the cowl... At least it seems that I'm not too hurry with it. Sanding & painting is not my favorite part.
Aug 28, 2019, 01:23 AM
Registered User
Very impressive repair job. I’m sure most people would have binned it. Well done.
Oct 20, 2019, 01:27 PM
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Late99's Avatar
Thread OP
Huh, I'm lagging heavily. I had to wait for the motor much longer than anticipated and that caused the project to be on the back burner for a while.

Cowling job didn't turn out too optimal. The white base coat went very well, but then the original red paint I tried just dried kind of dust like. Not smooth surface at all. And I was just a bit too lazy to do proper re-sanding after that. And then the second red I used is bit too dark for the plane. Anyways, I think it will do for now and it's always just matter of some effort to sand it again and do repaint.

And finally the long awaited Dualsky GA-6000 motor also arrived!
Oct 23, 2019, 01:39 PM
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Late99's Avatar
Thread OP

Finishing steps...


After finally having the motor on hand it was easy to continue.

1. Check motor alignment to cowling
2. Attach motor firewall where you're happy with the motor alignment
3. Glue all the support wood around motor box

Then it was matter of installing electronics. I forgot to take pics of the ESC-octopussy-wiring, but after I got it soldered it was pretty straightforward installation.

As final steps I glued the canopy latches in place. If Extreme Flight trusts these, why shouldn't I? Actually the latches used were from my broken EF 95" Extra canopy (I shot battery through it about year ago). Also tail wheel guides were attached.

The inside turned out pretty tidy and nice. CG seems to be quite adequate for test flights when my batteries are against wing tube. I would think it's somewhat nose heavy, but we'll see after re-maiden.
Oct 23, 2019, 02:27 PM
I meant to do that - no really
ImpactSpecialist's Avatar

Congratulations


Quote:
Originally Posted by Late99
After finally having the motor on hand it was easy to continue.

1. Check motor alignment to cowling
2. Attach motor firewall where you're happy with the motor alignment
3. Glue all the support wood around motor box

Then it was matter of installing electronics. I forgot to take pics of the ESC-octopussy-wiring, but after I got it soldered it was pretty straightforward installation.

As final steps I glued the canopy latches in place. If Extreme Flight trusts these, why shouldn't I? Actually the latches used were from my broken EF 95" Extra canopy (I shot battery through it about year ago). Also tail wheel guides were attached.

The inside turned out pretty tidy and nice. CG seems to be quite adequate for test flights when my batteries are against wing tube. I would think it's somewhat nose heavy, but we'll see after re-maiden.
Wow, ainít she pretty

You must be pleased with how this project has turned out. I know you have been self critical over the colour match of the cowl but it looks quite good in some shots. If you are still not happy post maiden Iím sure you will re-visit it.

Good luck with the maiden.

Iíve enjoyed your journey so far and I look forward to your successful flight report.
Oct 24, 2019, 12:04 PM
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Late99's Avatar
Thread OP
Thanks!

Some final specs to wrap this up.

- Motor: Dualsky GA6000.8
- Propeller: Xoar 24x12 PJN
- ESC: ZTW Gecko 150A Opto (with Aerostar labels on it)
- BEC: Castle Creations Pro Bec
- Aileron and rudder servos: 3 x Savox SV-1272SG HV
- Elevator servos: 2 x Potenza DS 19410 TG HV
- Receiver: Spektrum AR8000 with one satellite

Weight ended up just where I estimated earlier. Full flying AUW is 8924g. To compare my 3DHS 95" Extra with same motor and batteries weights ~8500g. Basically all parts of this plane have been build a bit heavier / sturdier than the Extra. In the end I'm happy with the weight, Yak has plenty of wing area, so it's not a problem.
Last edited by Late99; Oct 27, 2019 at 03:48 AM. Reason: Added prop details.
Oct 24, 2019, 12:15 PM
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Late99's Avatar
Thread OP

Re-maiden!


Autumn is pushing heavily and weather getting colder, but yesterday we had a nice sunny weather and I left work early to catch some of the sunlight. Really wanted to get this flying before it starts snowing!

I had my old Mobius hat cam with me, but hadn't properly recharged it, so run out of battery pretty soon. Still got some flying video from flights two & three. The video is not anything spectacular, but keep in mind that this really was my first session with this plane (that I've been building for almost full year). Considering that, I think I was quite brave already and basically flew through all the maneuvers I'm comfortable with (no video of all of those, though).

Full screen on proper display recommended!

Rebuild Pilot-RC 88" Yak-55M re-maiden (2 min 18 sec)
Last edited by Late99; Oct 25, 2019 at 03:27 PM.
Oct 25, 2019, 09:17 AM
I meant to do that - no really
ImpactSpecialist's Avatar
Quote:
Originally Posted by Late99
Autumn is pushing heavily and weather getting colder, but yesterday we had a nice sunny weather and I left work early to catch some of the sunlight. Really wanted to get this flying before it starts snowing!
I call that a great success You must be extremely happy with the results.
Oct 25, 2019, 07:40 PM
Registered User
dhooks6's Avatar
Great job!

Very impressive!


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