Ultra light Yak-54 plans on the drawing board - Page 3 - RC Groups
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May 11, 2006, 03:23 AM
PB #2212
well done mate

sorry i havent posted for a few days i broke my wrist on tuesday so been in hospital

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May 11, 2006, 10:05 AM
Registered User
Thanx, bro.

Here is the plan for the Yak-54. This should be final. I modified the wings a lil with more area and bigger ailerons. Adjusted the cut on the fuse where the stab/elev goes in. Adjusted the elevator for more rudder throw. Broke the x-section in more parts to put 2 CF spars on the wing.

I would start with the CG at around 2 3/4" from LE and go from there.

I'll be putting a new one together over the weekend so I can check the adjustments I've made to it.

Last edited by Malves; May 12, 2006 at 11:26 AM.
May 13, 2006, 04:56 AM
"How old are you?"
Brummeh's Avatar
I just wish i could "hack a paint job" like that

What motor and batt are you using in the video please?

I have a micro cyclon, 27g and 2s 400mah batt, will they be any good?

May 13, 2006, 09:22 AM
Registered User
Sorry, bro. I don't know that motor. But it should be fine with the right propeller.

I am using an E-Flite Park 300 (24g), 8x3.8SF, and TP480PL 3s.

Last nite, I've cut a new plane. It's painted and ready to assemble. I'll post a pic later. My biggest problem with painting is the masking part, but I guess I found a good solution for it. At least for me. More later.
May 14, 2006, 04:35 PM
Registered User
Here's my new Yak. I just took it to the basement of the building where I live for some hovering action (can you call it a maiden? ) and it did great. Of course, it's much better than V1 with the considerably bigger ailerons. I just love this lil Yak.
Last edited by Malves; May 14, 2006 at 05:06 PM.
May 15, 2006, 10:30 AM
PB #2212
looks sweet mate

May 15, 2006, 09:56 PM
Registered User
Thanx, bro.

Well, I did a real maiden today and...wow! The bigger ailerons made a huge difference. Rolling harriers are fast or slow, you pick. I am having a blast with it. It's a very responsive plane - I had to increase expo on the elevators. Hovering is soooo easy, that it is actualy the first plane I can hover in a small sized room. If you have a setup laying around, give this Yak a go. You won't be sorry! It builds quick anyways. I have the CG setup somewhere between 2 3/4"-3" on this one.

If you build the same way I did in the pics above, you'll have a stiff and strong plane.
May 15, 2006, 11:29 PM
Will fly for Bourbon
DBSkyout's Avatar
How much does your Yak weigh?
May 16, 2006, 09:11 AM
Watts is where its at!
racerxky's Avatar
Sharp looking airplane. Nice job.
May 16, 2006, 09:36 AM
Registered User
Thanx, bro.

I don't have a scale to weigh it. Probably gonna have to wait until the weekend. But I'm estimating ~6oz. Getting this plane at 5oz or less, shouldn't be a problem with the right setup and less paint.
May 16, 2006, 12:49 PM
Registered User
looks really good malves.... will be building one beg. of next week when i get back from "business" in vegas... lol... you did use 3mm depron? v2... ws & length?
May 16, 2006, 01:08 PM
Registered User
Thanx, bro. Yes, 3mm depron. Business in Vegas?! ...Yeah, right! WS and lenght are still the same: 35" ws and 27 3/4" long.
I'll try to get a vid later if weather holds up today. I was flying a few minutes ago, but the wife's at work and I can't take the vid. I want you guys to see how this thing rolls.
May 17, 2006, 11:26 PM
Will fly for Bourbon
DBSkyout's Avatar
Here is a picture of my 152 gram Yak.
Strong R/C 20mm motor, Kevlar truss brace,
pull-pull on elevator and rudder, 1.5mm carbon landing gear, 1mm carbon aileron push rods, HS50 servos, cc10,
480 TP Prolite 2cell, motor puts out 310 grams thrust with a 8.4 gws dd. Best plane I have built yet and flys great.
May 18, 2006, 07:49 AM
Registered User
Looks great, bro!! I like the paint job...simple and cool. What's the WS and lenght?
May 18, 2006, 03:28 PM
Registered User
Ciao Malves!
I just try to print your design...but i cant print it whith an A4 printer.
Maybe because i use linux and my pdf reader didn't recocnize well the file.It seems to be a non tiled file.You know any solution?
Thanks for share it!

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