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Extreme Flight 87" Yak 54 - Build & Fly

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Extreme Flight 87" Yak 54 - Build & Fly

Old 03-19-2005, 11:53 AM
  #3376  
jrjohn
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Please help, What size did ou guys have to drill the holes in the cowl so that the gromets would fit. The plans say 1/8. I doesn't seem like thats possible

JOhn
Old 03-19-2005, 12:22 PM
  #3377  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Well I can't exactly recall... seems to me the odd size like 5/32 or 11/64...

Best way to be happy with your selection is to drill a piece of scrap cowl (maybe fron the coolin cutout) and drill a selection of holes and try them out. You want the grommet to JUST fit the interior, maybe a smidge bigger than the hole.




ORIGINAL: jrjohn

Please help, What size did ou guys have to drill the holes in the cowl so that the gromets would fit. The plans say 1/8. I doesn't seem like thats possible

JOhn
Old 03-19-2005, 12:41 PM
  #3378  
jrjohn
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

David, 11/64 was the charm. I wonder how long these gromets will last before the cowl eats through them. thats usually what happens, and if you don't catch it in time, the screw starts hogging out the hole. I wonder if Chris can tell us where to buy a couple dozen of the white gromets so a guy could change them every couple weeks.l

JOhn

p.s. How you doing???
Old 03-19-2005, 01:01 PM
  #3379  
Kregg
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Some of you guys might be interested in my custom photographic cockpit build thread that I just started. This Yak is a awesome aircraft and deserves a equally awesome cockpit to finish up the presentation. The kit only weights a couple of ounces, so you do not have to worry about that! be sure and get the extra points at your next IMAC competition. Check it out.

http://www.rcuniverse.com/forum/m_27.../anchor/tm.htm
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Old 03-19-2005, 01:09 PM
  #3380  
jpa2002
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

jrjohn, would it be a good idea to put a piece of brass tubing through the grommet, and maybe that would help? I have never tried it, but I my do that. Something similar to the way the brass grommets go in our servo rubbers.

Jon
Old 03-19-2005, 01:12 PM
  #3381  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Question for you guys using the 4" Tru Turn spinner. I ordered one with a Menz/Mejzlik cut, but I don't have my prop yet, so I was wondering if someone could tell me if the spinner cut looks correct. I would like to be able to run my MSC prop also, and the cut just doesn't look like Tru Turn's pic and it doesn't look big enough to me.

Your help is appreciated!

Jon
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Old 03-19-2005, 01:48 PM
  #3382  
flyingcrazy
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

This is the menz cut .
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Old 03-19-2005, 02:02 PM
  #3383  
RTK
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

I do not know what everyone else does, but I always leave my spring attached on the carb just in case of this.
Glad to see it all worked out well.

ORIGINAL: ten pillows

Since we are sharing mishaps... let me share mine. We no sooner than got my Yak in the air then the throttle linkage came disconnected. Fortunately it was at a low speed, so 35 minutes later, when the gas ran out, we dead sticked it in.
Old 03-19-2005, 02:05 PM
  #3384  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly


ORIGINAL: Kregg

Some of you guys might be interested in my custom photographic cockpit build thread that I just started.
That looks fantastic !! I wish I would have seen this before I built mine ! I guess it's never too late to change it

ORIGINAL: jpa2002

so I was wondering if someone could tell me if the spinner cut looks correct.
That looks like the standard cut. Was the package marked "menz cut" ?
Old 03-19-2005, 02:38 PM
  #3385  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Thanks for the photo, that helps. Yep, the package was labeled MENZ. Here is a pic of it.

Jon
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Old 03-19-2005, 02:56 PM
  #3386  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Jon, thats not a menz cut spinner!

ask them to ship you the correct one!

with that cut you wont be able to use the menz prop!
Old 03-19-2005, 03:03 PM
  #3387  
coche
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

this is the one you bought!
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Old 03-19-2005, 03:05 PM
  #3388  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Kregg, that's really cool lookin... sut I do miss a head to go with that girl pilot...

BBRiBro... does that mean I can have your "old" one?

JrJohn, today is the 4th day of chemo... doing pretty good... not too much sickness from it yet. There will be a steep decline in how I feel in about a week. I have 2 more days of it before the transplant.
Old 03-19-2005, 03:13 PM
  #3389  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Maudib, I wouldn't go that far I still like mine, and for the difference in price, I'll probably stick with it. But I am curious what a setup like that costs.
Old 03-19-2005, 06:38 PM
  #3390  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

.
Old 03-19-2005, 07:36 PM
  #3391  
wgeffon
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly


ORIGINAL: jpa2002

Question for you guys using the 4" Tru Turn spinner. I ordered one with a Menz/Mejzlik cut, but I don't have my prop yet, so I was wondering if someone could tell me if the spinner cut looks correct. I would like to be able to run my MSC prop also, and the cut just doesn't look like Tru Turn's pic and it doesn't look big enough to me.

Your help is appreciated!

Jon
Mine is cut like that and I am using a Menz-S 24x8 with no problem.


Old 03-19-2005, 08:31 PM
  #3392  
jrjohn
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

ORIGINAL: jpa2002

jrjohn, would it be a good idea to put a piece of brass tubing through the grommet, and maybe that would help? I have never tried it, but I my do that. Something similar to the way the brass grommets go in our servo rubbers.

Jon
jon, I think the gromets get eaten from the outside (the fiberglass) I'm going to epoxy the threads for the first 1/8 inch so the threads can't do any cutting, but again I think it's the fiberglass cutting the gromet. I wonder if anybody else has a fix for this problem

John
Old 03-19-2005, 09:34 PM
  #3393  
Mike Parsons
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Just as an FYI I used a 3/16.

-Mike
Old 03-19-2005, 09:34 PM
  #3394  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

For the cowl mount cut some CA hinges and CA them inside the cowl screw holes. It prevents the screws to eat and crack the cowl.
Of coures you have the rubber gourmets but CA hinges work good as a second means or protecting the cowl.

I learned this trick in RCU and it works.
Old 03-19-2005, 10:49 PM
  #3395  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Cobra, I'd like to see a picture of that if possible

thanks

John
Old 03-19-2005, 10:53 PM
  #3396  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

Just wondering how to mount a fuel dot. Are you guys cutting out a big hunk of foam to do it?

or is there another fuel fill system that I'm not aware of?

John
Old 03-19-2005, 10:57 PM
  #3397  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

anyone using the stock DA muffler without cutting the cowl on the side?(to clear the muffler)
Old 03-19-2005, 10:59 PM
  #3398  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

John,

My fuel dot is mounted to the side of the cowl.
Old 03-19-2005, 11:16 PM
  #3399  
jrjohn
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly


ORIGINAL: wgeffon

John,

My fuel dot is mounted to the side of the cowl.
Now I feel dumb for asking, The solutioon was so simple that I couldn't see it!

Wayne, did you epoxy a small piece of wood to the inside of the cowl to give it some strength?

Thanks for the reply

John
Old 03-19-2005, 11:23 PM
  #3400  
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Default RE: Extreme Flight 87" Yak 54 - Build & Fly

ORIGINAL: jrjohn



Wayne, did you epoxy a small piece of wood to the inside of the cowl to give it some strength?

Yes. For strength and because the cowl is thin.
The threads on the dot bottom out before it actually tightens into the cowl. The wood takes care of that.

I wouldnt recomend putting the fuel lines anywhere near the foam. One leak and your gonna have problems.



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