Couple of LamYaks in the bones :UPDATE: Now RTF

Re: Couple of LamYaks in the bones

PostPosted: Sun Dec 12, 2010 5:41 pm

Did you weigh the 60 without landing gear? Mine is just about ready to cover. Complete airframe weighs 28 ounces (without landing gear).
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Re: Couple of LamYaks in the bones

PostPosted: Sun Dec 12, 2010 6:35 pm

Bob Scheppele wrote:Did you weigh the 60 without landing gear? Mine is just about ready to cover. Complete airframe weighs 28 ounces (without landing gear).


Yes, I did. It was the same as yours, 28 ounces. :) What are you using for gear? I've got 14 oz of radio equipment and 24 ounces of motor. Add in a bit for glue, linkages, fuel tank, etc, and I figure it will come in around 5.4 or 5.5 pounds.
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Re: Couple of LamYaks in the bones

PostPosted: Sun Dec 12, 2010 6:41 pm

Erik wrote:
Bob Scheppele wrote:Did you weigh the 60 without landing gear? Mine is just about ready to cover. Complete airframe weighs 28 ounces (without landing gear).


Yes, I did. It was the same as yours, 28 ounces. :) What are you using for gear? I've got 14 oz of radio equipment and 24 ounces of motor. Add in a bit for glue, linkages, fuel tank, etc, and I figure it will come in around 5.4 or 5.5 pounds.


My LY60 is a few ozs lighter in the bones, so I think I will be around 5.5 lbs all up as well.
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Re: Couple of LamYaks in the bones

PostPosted: Sun Dec 12, 2010 6:46 pm

chumley wrote:My LY60 is a few ozs lighter in the bones, so I think I will be around 5.5 lbs all up as well.



Dude, you're a building machine! How long did it take to get yours framed up?
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Re: Couple of LamYaks in the bones

PostPosted: Sun Dec 12, 2010 7:04 pm

chumley wrote:My LY60 is a few ozs lighter in the bones, so I think I will be around 5.5 lbs all up as well.


You must have some really light fuselage wood or you put a helium filled bladder in the wing.

I'm going e with mine. I have a couple of options for motor and speed controller, so I won't know final weight until I do some experimenting with one of the motors. Motor will determine the battery I need. I have a two of Multiplex digital servos that I plan on using on ailerons and two Airtronics 358s (fast and about 200 in-oz) for the tail. The four servos combined are under 8 ounces.
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Re: Couple of LamYaks in the bones

PostPosted: Sun Dec 12, 2010 8:59 pm

Erik wrote:
chumley wrote:My LY60 is a few ozs lighter in the bones, so I think I will be around 5.5 lbs all up as well.



Dude, you're a building machine! How long did it take to get yours framed up?


Not quite - I traded JoeBob an Sbach65 kit for the framed up LamYak60. Of the planes I have right now, two were built by Brutus (Sbach 45 anf 55), one by JoeBob (LY60), one by Wild Fred (WF Combat Plane), one by BalsaBro (Sbach25), and two by me (Red Bull/RazorYak) - Plane whore maybe, building machine not so much :lol:

Bob Scheppele wrote:You must have some really light fuselage wood or you put a helium filled bladder in the wing.

I'm going e with mine. I have a couple of options for motor and speed controller, so I won't know final weight until I do some experimenting with one of the motors. Motor will determine the battery I need. I have a two of Multiplex digital servos that I plan on using on ailerons and two Airtronics 358s (fast and about 200 in-oz) for the tail. The four servos combined are under 8 ounces.


The LY60 is made with really light wood and is 1.5 lbs framed. It will get the same motor/esc/radio gear as my Sbach55. The Sbach55 was a scratch build by Brutus and was 2 lbs in the bones and came out just under 6 lbs RTF, so the LY60 should be just under 5.5 with the same gear. I'm running a 5S setup up with a Motrolfly motor and 100A esc. This setup has very impressive power on the Sbach55, so should be even better on the lighter LamYak.
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Re: Couple of LamYaks in the bones

PostPosted: Sun Feb 20, 2011 5:52 pm

Time for an update. :) Both planes are done and RTF. I took them out to the field today to take a few pics and maiden the LY 40. I'm too big a pussy to maiden them both on the same day, especially after not having flown for a couple of months. They both weigh more than I had hoped, but I shouldn't be surprised because everything I build ends up heavier than I expect. The 40 came it at 4.75 pounds and the 60 at 5.8 pounds. I was aiming for 4.5 and 5.5. Anyway, I put three full flights on the 40 and am very impressed. I had never flown a laminar wing plane before today and it was everything I hoped. It harriers effortlessly and cuts through the wind easily. It's the best flying 40-size plane I've flown. Thanks to Max and Ron for all their hard work.

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Re: Couple of LamYaks in the bones

PostPosted: Sun Feb 20, 2011 5:57 pm

Damn nice lookin LY's you got there. Can't wait to see them in person. :tu:
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Re: Couple of LamYaks in the bones

PostPosted: Sun Feb 20, 2011 6:02 pm

Damn Erik, those are two good looking slabs :tu:
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Re: Couple of LamYaks in the bones

PostPosted: Sun Feb 20, 2011 6:05 pm

Thanks Kenny. Your'e welcome to wiggle the sticks any time.

Thanks Gus. It seems to take me forever to get a plane covered.... and even longer to cover 2. :)
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Re: Couple of LamYaks in the bones

PostPosted: Sun Feb 20, 2011 6:13 pm

Nice work Eric. :tu:

The more stick time you get on the LY, the more you'll love it. Definately a great windy day bird.
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Re: Couple of LamYaks in the bones

PostPosted: Sun Feb 20, 2011 6:15 pm

Those are great looking planes Erik. :tu: The 60 looks like maybe you were going E and then changed your mind?
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Re: Couple of LamYaks in the bones

PostPosted: Sun Feb 20, 2011 6:45 pm

Welcome to the dark side......
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Re: Couple of LamYaks in the bones

PostPosted: Sun Feb 20, 2011 6:52 pm

Very nice looking Lammys... :rockon:
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Re: Couple of LamYaks in the bones

PostPosted: Sun Feb 20, 2011 7:00 pm

beautiful erik simply beautiful! :rockon: now you can`t say you suck at coming up with great looking covering schemes. i love the font you used for the "pro bro". :tu:
once again those are 2 beautiful planes.
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Re: Couple of LamYaks in the bones

PostPosted: Sun Feb 20, 2011 7:15 pm

Very nice!! Great Scheme!!!!

I have both those in the box with no clue when I'll build them :o :( .

How did you like the OS on the LY40?

That weight seems pretty good on the 60. Pretty light actually.
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Re: Couple of LamYaks in the bones

PostPosted: Sun Feb 20, 2011 7:39 pm

Art, I planned on glow all along. What makes it look otherwise? Conk, you'll have to fly them in May. You and Jeff ARE coming for the VABro, right????? :) Jeremy, you're right! The LY is as smooth and easy to fly as most 60-size planes I've flown. But at the same time, it's way more responsive. It's sort of a hybrid between both of them. Straightup, the 81 is still way rich, but it yanks it around with very good authority. I had an APC 14x4W on it for the first flight, then switched to a JXF 14x6. As you might expect, the spool up was noticeably faster and I like it much better than the heavy APC. I ran a couple of tanks through the 81 and was happy with the idle so I went ahead and took it up. It was rock solid all day. I know it's early, but I think it will make a great engine for a slab. Oh, and after three flights, the only goo on the plane was on the right gear leg. There wasn't anything but grass on the rest of the plane. I can live with that. :)

And thanks for all the kind words, guys. They look okay if you don't get too close. :lol:
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Re: Couple of LamYaks in the bones

PostPosted: Sun Feb 20, 2011 7:43 pm

They look great!
My LamYak 40 is 5lbs even. Flies great at that weight. Lighter might be better but I'm not sure.
Under 6lbs is great for a 60. My 60 is still in the box.....
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Re: Couple of LamYaks in the bones

PostPosted: Sun Feb 20, 2011 9:33 pm

Erik wrote:Art, I planned on glow all along. What makes it look otherwise?


Couldn't blow it up but the very last pic you posted looks like you sanded the MM for an E motor shaft. White stripe looks like it has a big U in the MM area. Looked back at the thread and realized you were planning glow all along, I just forget these days. :)
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Re: Couple of LamYaks in the bones

PostPosted: Sun Feb 20, 2011 9:42 pm

snacker wrote:
Erik wrote:Art, I planned on glow all along. What makes it look otherwise?


Couldn't blow it up but the very last pic you posted looks like you sanded the MM for an E motor shaft. White stripe looks like it has a big U in the MM area. Looked back at the thread and realized you were planning glow all along, I just forget these days. :)


Oh right, I remember, the notch in the motor mount. As it turns out, I did that all for nothing. I had to move the engine forward and the notch accomplished nothing but perhaps weakening the mount. :)
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