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Extreme Flight 87" Yak 54 - Build & Fly

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Extreme Flight 87" Yak 54 - Build & Fly

Old 05-06-2005, 08:08 PM
  #4701  
wgeffon
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

***?

You coming tomorrow?
Bring my Sobre if you are.
Old 05-06-2005, 08:09 PM
  #4702  
going vert
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Ya - F work. It can wait. I'm coming down.
Old 05-06-2005, 08:11 PM
  #4703  
wgeffon
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Nice,

Larry wasnt going to let you hear the end of it if you didnt.
You bringin the Yak?

I am going to bring mine so I can get Mike on Video with it.
Old 05-06-2005, 08:17 PM
  #4704  
going vert
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Yep - I'll bring the yak. It's on charge now. Let's get a little Leyland action on tape.... LOL
Old 05-06-2005, 08:19 PM
  #4705  
wgeffon
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Yes.

Get the site back on tonight if you can.
Were going to need it tomorrow.
Old 05-06-2005, 09:13 PM
  #4706  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly


ORIGINAL: NE0

3) IGN hotwire - no switch - simple new technique... I'm quite proud of this one [8D]

Tom
What's your idea behind no ignition switch? Lighter? Simpler install? One less component to fail? I have never given the ignition switch too much concern, I'm not afraid of a deadstick, of course at certain times it could be bad, but not near as bad as losing the radio.
Old 05-06-2005, 09:33 PM
  #4707  
chipwill
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Well Guys, it's been a great day. I am tired as hell since only getting 4.5 hours of sleep, but well worth it. Somehow I managed to get my 29% AW Katana and the 87 incher in my Pontiac Vibe ( along with a 1.5m discus launch sailplane ).

I have a short statement about how today went.

My Katana will probably only be flown if the Yak is broken. NO CONTEST. End of statement. Anyone wan t a crappy looking AW katana for a deal It does fly nice, but the Yak flies Excellent!

I knew it would fly pretty good from experience with the 68. I am running a BME 50 with recommended breakin prop of a 21x8. I was hesitant about this, but the engine pulled with great authority. I cant wait to step to a larger prop. This was my first BME experience and it starts in half the flips of the ZDZ. The ZDZ seems very reliable and the only quirk is it takes a while to start. The BME started pretty quick.

I will write more about it tomorrow. I'm dog tired.

The weather was great, but storm tomorrow maybe...

Chip
ps. the other two pics, I shot of Kurt Koelling flying his Carden 40% Edge, and smoking up the field hovering. Almost couldnt see the plane. I ran for the camera, and then he was out of smoke oil. Still cool though.
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Old 05-06-2005, 09:35 PM
  #4708  
wgeffon
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Nice Chip!

Your not too far from us.
You should try and make the Fly-in Aug 19-21st.

I'll be out that way for the IMAC end of this month. Will you be there>

Old 05-06-2005, 09:38 PM
  #4709  
chipwill
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Is that the Lansing Imac?

I have that one on the Calendar to attend.

Yea, the CMH Imac will be the first one this season for me. Deciding on should I do one or two in Basic or just start in Sportsman. Ive flown the sportsman sequence and its not too hard. Wont get killer scores for a while. No biggie.

Its pretty cool being on the same field ask Kurt, Jim Neal, Barbee and everyone else in the area. Great group of guys, when they arent laughing at me launching my DLG. hehe.

Chip
Old 05-06-2005, 09:41 PM
  #4710  
wgeffon
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Chip,

The IMAC is the 5th annual Columbus IMAC Challenge.

The fly-in I was talking about is a three day get together near Chicago August 19th -21st.
No contest. Just a lot of fun, flying and food.
Old 05-06-2005, 09:45 PM
  #4711  
wgeffon
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

ORIGINAL: chipwill

Deciding on should I do one or two in Basic or just start in Sportsman.
If you flying through the Sportsman sequence you should start there.
We have a lot of fun at the contests. Lots of good guys.
You are in great company there where you are.

Glad to see Kurt wasnt flying his 330 practicing the sequence. He beat me (and everyone except For McConnville) last weekend.
[:@]

Old 05-07-2005, 06:11 AM
  #4712  
xtreem3d
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

chip,
what are you using on the katana? i have a bme 50 on mine at 16lbs and there is no way the motor has enough power unless there's something wrong w/ mine !!! what are your guys yaks weighing in at w/ the DA 50?
thanks,
steve
Old 05-07-2005, 07:40 AM
  #4713  
chipwill
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

My Katana has a zdz with slimline pits muffler, turns a MenzS 22x10 at about 7k right now. Only 20 flights on it so far. Vertical is unlimited, but I havent tried upline snaps and see if it continues. I dont know the weight of it but I am guessing 17 lbs.

My Yak is noticibly lighter. What prop you running on the BME. Mine seems like plenty of power so far and I have only 4 tanks thru it.


Chip
Old 05-07-2005, 09:59 AM
  #4714  
BARCC
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

So, how could I get one of these planes?
Old 05-07-2005, 10:38 AM
  #4715  
NE0
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

What's your idea behind no ignition switch? Lighter? Simpler install? One less component to fail? I have never given the ignition switch too much concern, I'm not afraid of a deadstick, of course at certain times it could be bad, but not near as bad as losing the radio.
Yes to all the above. Lighter, simpler, less to fail. If I was using the stock 4 bolt mount method for the canopy, I wouldn't have done this. But, since I can get insided the fuse in 3 seconds using the latch, it's a no-brainer. Mounting switches and fillers through that thick stryrofoam fuse wall on the Yak is a royal pain, and you have to double up the sheeting around the area the switch mounts. Lot of hassle that is avoidable. Also, this saves a couple ounces and I'll never have to worry about a IGN switch failing at low altitude.

chip,
what are you using on the katana? i have a bme 50 on mine at 16lbs and there is no way the motor has enough power unless there's something wrong w/ mine !!! what are your guys yaks weighing in at w/ the DA 50?
thanks,
steve
Something doesn't sound right there... I had a BME 50 on my WH Edge that weighed 18.25 with a smoke system and it had plenty of power. No, it wasn't as crazy as my Yak will be at 15.25 pounds, but VERY few planes are.

Any decent 50cc engine should perform great up to 17 pounds... awesome up to 16 pounds. My BME was only turning 6700-6800 rpms on a 21*8 prop in my Edge and it still had great vertical at 18+ pounds. At 16 pounds, a BME 50 should be tons of power.

Tom
Old 05-07-2005, 02:14 PM
  #4716  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Well, I got the stock DA muffler on my Yak and just as I suspected... picked up 500 rpms immediately. Now getting 7100-7150 and weigh about 7 ounces less

Unfortunately, I had to cut yet another gaping hole in the cowl, up towards the front left side. The corner of the muffler hits the cowl there, so I had to "relieve that." [&o]

On another odd note, I had a little trouble with my Smart-Fly Fiber Optic kill switch while checking out the rpms with the new muffler. Went to shut the engine down and it wouldn't quit running. Looked up inside the cowl and sure enough, the red light was still on, meaning the kill switch was not trying to kill the momo. I repeatedly switched it on and off and nothing happened. Then, all of the sudden it started working again. Shut it down and I was able to reproduce the problem with the engine off too.

Ran it for a bit longer, then the kill switch quit working again... engine keeps running. While it was not working, I changed it to a different switch on my transmitter to see if my TX switch was going bad, but it made no difference. Changed it back to the original TX switch and it started working again.[sm=spinnyeyes.gif]

Brought it inside the shop and now I can't get it to malfunction anymore. I opened her up and checked all the connections... everything seemed fine. So, I recut the ends of the fiber optic to make sure I was getting a good flat end with good optic transfer and put it all back together. Everything seems to work now... for how long, I don't know.

I did learn one thing though. If you unplug the fiber optic cable it failsafes to "ignition on" instead of off. That's good to know, since it means that if it does flake out on me, I just won't be able to turn it off... as opposed to the opposite happening (deadstick).

Tom
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Old 05-07-2005, 02:49 PM
  #4717  
flat spin
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

I had a customer over here had the same problem. The reason is because the Fibre Optic cable picks up light from outside which is apparently enough for it still to think there is a signal. A bit of tape on the cable or placing it where it can't get any light will do the job.
Old 05-07-2005, 04:39 PM
  #4718  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Mine weighs 16lbs 3oz. with the DA 50 and the KS 1060 pipe. Mine is a tad tail heavy, I don't think I am going to change it. Saying that it flies great is an understatment.

Dave
ORIGINAL: xtreem3d

chip,
what are you using on the katana? i have a bme 50 on mine at 16lbs and there is no way the motor has enough power unless there's something wrong w/ mine !!! what are your guys yaks weighing in at w/ the DA 50?
thanks,
steve
Old 05-07-2005, 04:41 PM
  #4719  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

The fiber optic cable on my ED kill sw. has a black outer coating.
ORIGINAL: flat spin

I had a customer over here had the same problem. The reason is because the Fibre Optic cable picks up light from outside which is apparently enough for it still to think there is a signal. A bit of tape on the cable or placing it where it can't get any light will do the job.
Old 05-07-2005, 06:05 PM
  #4720  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Hi Neo,

My smart fiber optic kill switch also behaved very strangely the other day, until I took the plane out of strong sunlight then it behaved normally again. I traced this back to the transmitter board where the fiber optic cable fits into the screw terminal this was letting in light which the receiver board interpreted as a signal. Easy to cure just cover the screw terminal with heat shrink or tape and hey presto no problem.
Old 05-07-2005, 06:07 PM
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

We found a momentary dry spell today and flew the model.
I flew it , then Brian Copfer flew it for these shots .
The power on the 23x8 was excellent but a bit slower than desired on accelerating from sinking hover/roll.
So I put on the 22x8 - which really sounds too fast but makes for instant acceleration out of any hover attitude.
Which is what you want for 3D
Note the clouds -It was really a piece of good luck to get a clear shot at it.
The plane is very stable and can be put in a deep sink right to the ground - note the contol inputs at high AOA positions .
I ran quickly ran thru some rolling and point stuff and snaps -all easy and with good stopping.
This setup -power and light weight is simply great.
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Old 05-07-2005, 06:34 PM
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Hi Dick Hanson.. Great looking yak... I like the color scheme you did as well that great looking tinted canopy. How did you manage to get it that nice. Did you use a spray tint or a particular paint???? Also the 23x8 prop what brand and rpm were you getting out of your DA, if it was a DA.... your information and feedback would be greatly appreciated.. Thx Trevor.\ Meatman.
Old 05-07-2005, 07:02 PM
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Mini Yak Fest today in Bloomington Illinois.

I think there were 5 of them there at one point. (One never flew though.)
Pics and a video of Mike MCConnville flying my Yak in a hour or so....
He really liked it.
Old 05-07-2005, 07:12 PM
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

My setup is a ZDZ50NG on a AMT tuned pipe -
props -shown here used today -- 23x8 by JAS a wooden copy of the Mejzlic from Czech Republic- 7200 static.
The hover shots are using a Mejzlic 22x8 - turning 7750 static. This one is not as good for the sequence stuff but is the better 3Dsetup -instant acceleration.Most aerobatic stuff pulls well at less than 1/2 throttle on the 23x8 .
As soon as the weather clears up we will try other props but honestly it really does not seem to matter much .
The 15.25 lb weight allows very low throttle application for all but pulling from sinking rolls and hovers.
I am extremely pleased with the entire setup
Old 05-07-2005, 07:14 PM
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly


ORIGINAL: wgeffon

Mini Yak Fest today in Bloomington Illinois.

I think there were 5 of them there at one point. (One never flew though.)
Pics and a video of Mike MCConnville flying my Yak in a hour or so....
He really liked it.
Hmmm...wonder what his opinion of the 15lb H9 260 is now??? After flying the Yak, he must be a little disappointed

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