Originally Posted by Nebukadzir

Where can i find the Yak piloot?

Thx Bernard

A few more...

Originally Posted by Nebukadzir

Where can i find the Yak piloot?

Thx Bernard

Left this out...

I'll try again, it won't show...

I built a custom one for a local club member and resized a profile of him and glued it on. Took him a while to realize what I had done. He loved it. If you glue it on, put some clear over it to fix it

Thanks all of you for the piloot pdf files.

A little back story first. I have never thought about 3D. I lack the hand-eye coordination and reflexes. I'm mostly a glider and slow-flier pilot. A couple weekends ago a flying buddy tells me he wants me to try flying his new store-bought retail foamy 3D. I think he's nuts because I'll wreck it in 10 seconds. I flew it anyway. Now I have the bug. But I don't buy airplanes. Here's what I've made so far.



The one on the left is double layer DTFB with the paper removed, 10mm. The one on the right is 6mm MPF. The DTFB Yak is good for breezy days. The MPF Yak is much lighter and best on calm days or indoors.

I know these airplanes are going to make me a better pilot. An instructor at the RC field coached me through flying inverted for the first time. It flew hands off, no elevator input needed. He never would've talked me into inverted flight with a balsa airplane that took months to build!

Now I'm thinking about getting some EPP and making a proper 3D foamy.

Jon

Welcome o the Dark Side Jon.....

Fun when the models cost next to nothing and fly as well as this one does isn't it????

Paul

Originally Posted by TooJung2Die

A little back story first. I have never thought about 3D. I lack the hand-eye coordination and reflexes. I'm mostly a glider and slow-flier pilot. A couple weekends ago a flying buddy tells me he wants me to try flying his new store-bought retail foamy 3D. I think he's nuts because I'll wreck it in 10 seconds. I flew it anyway. Now I have the bug. But I don't buy airplanes. Here's what I've made so far.

Attachment 12695711

The one on the left is double layer DTFB with the paper removed, 10mm. The one on the right is 6mm MPF. The DTFB Yak is good for breezy days. The MPF Yak is much lighter and best on calm days or indoors.

I know these airplanes are going to make me a better pilot. An instructor at the RC field coached me through flying inverted for the first time. It flew hands off, no elevator input needed. He never would've talked me into inverted flight with a balsa airplane that took months to build!

Now I'm thinking about getting some EPP and making a proper 3D foamy.

Jon

Congrats!

Nobody ever said you have to 3D a 3D plane! They always fly GREAT in any attitude and they're fun to fly!

Originally Posted by PaulB

Welcome o the Dark Side Jon.....

Fun when the models cost next to nothing and fly as well as this one does isn't it????

Paul

Dark side? I think I saw the light. If it wasn't for foam board airplanes I wouldn't have gotten back into the hobby or stayed interested this long.

Originally Posted by bhoov128

Nobody ever said you have to 3D a 3D plane! They always fly GREAT in any attitude and they're fun to fly!

That's what I loved about my friend's 3D. It was so easy to fly. The Yak looked like the best choice for building my own. Over 10 years since it was introduced, over 840 pages of information and experience, almost 1.5 million views, it had to be a winner.

We have released a 40" version of the Leadfeather Yak55 which was announced on my RCGroups blog here. Not simply a blow up of the plans but a redesign using a KF4 airfoil. Check it out. There is a flight video also

Flying the 40" RA Cores Yak55 XL (4 min 37 sec)

I am thinking about getting my yak flying again. Great backyard flyer.

32" Yak-55 (3 min 15 sec)

Originally Posted by boa2110

I am thinking about getting my yak flying again. Great backyard flyer.

Sure is. Didn't you make it out of CF reinforced single layer Adams Readi Board with no paper? You wouldn't happen to remember the specs on the motor?

Originally Posted by TooJung2Die

Sure is. Didn't you make it out of CF reinforced single layer Adams Readi Board with no paper? You wouldn't happen to remember the specs on the motor?

That's right. The motor looks like a 2204 1400kV with an 8038 prop.

I think I have everything for the next Yak build. I've been flying the two Yaks in Post 12680. Both fly well but are too fast for me to feel comfortable flying them indoors. I've been looking at dozens of other 3D profile foamy plans and have come back to the Yak.

I need your advice. The goal is a Yak around 6 ounces AUW with a 350 to 450 mAh 2S. What wingspan would be suitable for a Gartt F 2204 1500KV motor? I have 6mm 1.3 EPP. I have an assortment of CF rod from .5mm to 3mm for stiffening.
Jon

Originally Posted by TooJung2Die

I think I have everything for the next Yak build. I've been flying the two Yaks in Post 12680. Both fly well but are too fast for me to feel comfortable flying them indoors. I've been looking at dozens of other 3D profile foamy plans and have come back to the Yak.

I need your advice. The goal is a Yak around 6 ounces AUW with a 350 to 450 mAh 2S. What wingspan would be suitable for a Gartt F 2204 1500KV motor? I have 6mm 1.3 EPP. I have an assortment of CF rod from .5mm to 3mm for stiffening.
Jon

Using 6mm EPP a 32" span would be perfect for indoor flying. I am assuming the motor will weigh around 20 grams and if that is the case 6 ounces should not be an issue. The plane shown below has a 32" span and is made from 7.5mm EPP weighs 180 grams (6.3 oz.) and is powered by a SunnySky 2204-1800kv motor and a 2s/300 pack. Maiden is tonight at our club Christmas party.

Originally Posted by TooJung2Die

Both fly well but are too fast for me to feel comfortable flying them indoors.
Jon

For about $120 plus shipping you can get this kit including motor :
https://www.pauzuolis-rc.com/rc-shop...per-trino-2018

Adam Hrbacek - Supertrino MkII, first competition flight in F3P AA, 1st place (4 min 5 sec)