MiG 19 ----- 90mm composite - Page 2 - RC Groups
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Dec 16, 2012, 08:32 AM
michigan jet guy
mrshea's Avatar
looks great Julian. Will be following. Phil
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Dec 16, 2012, 09:29 AM
Boogie_'s Avatar
Originally Posted by Waltjg
Julian, have you started thinking about fan placement yet? On my Mig15 build, I had it too far back and hac to add a bunch of weight in the nose... Just thought I'd throw out the comment and experience.. Its looking good so far! W
Foremost on my mind Walt.
I'm planning on a split intake with the nose gear and batteries in between, similar to the CARF MiG 15 and the fan will be on mounting rails the same way I did my Cougar. This will allow for a lot of play getting the CG spotted.

Just ordered some retracts. Will have to wait until they show up before I start working on the wings.
I want to work out all the angled retract geometry before I start cutting the wing cores.

Dec 18, 2012, 06:06 PM
Registered User

Looking forward

Looking forward to your techniques on this one
Dec 19, 2012, 12:57 PM
Fast Jets for Fast times
Lmeano_from_MO's Avatar
Great start Julian,

You never see this jet made. Are you planning to split the fuse or build the formers in it as a whole fuse? John makes such incredible builds with this glass over plug.
Dec 19, 2012, 02:48 PM
Registered User
LuvEvolution7's Avatar
deffinitely subbed to this one Julian. are you gonna go with bifurcated ducts, or are you gonna go with an elliptical duct, like you were discussing on the other thread?
Dec 19, 2012, 08:54 PM
Boogie_'s Avatar
I picked up a flu bug Friday so I've been saving all my energy for just the essential stuff around the shop. ...one of the joys of being the Boss is going to work when your sick.

I did managed to do a little sanding on the fuse. One more mud and sanding session and I should be ready for the first layer of glass.

Jeff, I'm going to cut the glass off the plug and add formers.

As of now I'm going with the oval exhaust. But I've got an idea for doing a more scale like splitter.
We'll see. This fuse is huge, the exhaust area for the 90mm is way smaller that what I'm gonna have back there at the tail.

Dec 19, 2012, 09:30 PM
Do it Right, the first time!
CoolerByTheLake's Avatar
Originally Posted by Boogie_
What size? ...big ...maybe too big for a 90.
The fuse itself is 56" (62" nose to fin) and a wingspan of 45". I can keep the scale intake at this size as it is large than the FSA.
This one will be plenty big enough to have retracts and handle our grass field.

Using an HET fan and Typhoon 700-68-1680 motor on 8s - 9s.

I was checking out an 8s set up for another project, and one Emile used looked good.

Re: HET 700-68-1680 /JetFan 90
Hi Mark,
I'm using 1,5 year old Turnigy Nanotech 4s5000 (45c/90c) 2x.
This setup pulls about 110amps at 3,25KW.
It's hard to say how much thrust it generates.
Inflight the Jetfan produces visibly more then shown in the graphs of ejets. I experience similar in my Habu.
A HET 700-68-1500 on 8s would be enough for good flight performance but for grass takeoff more power is welcome
His L-39 came in at 11lbs. I don't know how the Het/JetFan compare, just an idea of what you could expect with this.

Courious as to what total weight cloth per sqyd you will go with? On my F-86F, not knowing any better I went with 3-layers of 3.7oz for a total of 11.1 oz per sqyd. Doing it over again I would only use 2-layers of heavier cloth. cold have save a bunch of weight. My fuse was 63" long and came out to a hair over 30oz. At a guess, you could come out with somewhere in the lower 20oz's with yours. Will be along for the ride!
Dec 23, 2012, 05:31 PM
Fast Jets for Fast times
Lmeano_from_MO's Avatar

Looks like it is going to be the same size as the Tiger. When I do my next project I will try splitting it top to bottom instead of down the middle. It has been really difficult placing all the stuff that goes in an EDF on this one. I have been looking over BVM fuse access hatches and really like how it’s done. The Tiger is back on the bench an ready for more assembly.
Last edited by Lmeano_from_MO; Dec 28, 2012 at 12:24 PM.
Dec 28, 2012, 02:54 AM
Registered User
Hey Julian if it was me I'd skip the paint and just cover the 19 with riveted aluminum panels .I just started back on my Mig 21 and its a combo of aluminum tape and .005 aluminum from K&S hobby and some pop can AL .Then again , I cover pretty much everything with aluminum .. No matter how you finish your project I'm sure it'll look very cool and completely original .
Last edited by pencon; Dec 28, 2012 at 09:18 PM.
Dec 30, 2012, 07:26 AM
Registered User
D_FAST's Avatar
I want more mig-19

Dec 30, 2012, 12:48 PM
Boogie_'s Avatar
Yeah, me too!!

I thought I was going to have time to work on it at the shop during the short week after Christmas. It's usually dead this time of year but I was hoppin' Wed, Thurs & Fri.
Hopefully I can get going on it tomorrow. Bad weather forecast down here all week, that usually slows business down a little.

My retracts came in Wed, so now I have all the hardware and materials on hand to finish the MiG.
Dec 31, 2012, 08:30 PM
Boogie_'s Avatar
Was able to get a wing core cut out today.
This is actually more of a test wing core. It may wind up getting hacked up as I try to get the angled retract geometry worked out.
IF the wing is even thick enough out there in the middle where the retract needs to mount. According to my figgerin' it should be.

I spent most of the afternoon cycling the gear up and down figuring out where exactly they needed to be mounted and how much I would have to angle the mounts to have the wheel oriented correctly when extended.

I know there is a formula to figure this out, but you got to remember I got my edumacation in Louisiana. I do better working it out right in front of me.
Dec 31, 2012, 09:25 PM
EDF rules... :)
AirX's Avatar
Hi Julian,

The core looks good, much better than my latest wing for the T37.

What retracts did you get, I looked back but could not find it in the posts.

Happy New Year,
Eric B.
Dec 31, 2012, 10:27 PM
Boogie_'s Avatar
Thanks Eric.

RCLander retracts.
According to the specs, they should be more than adequate for this model. Pretty beefy hardware.
Jan 01, 2013, 05:37 AM
Registered User
D_FAST's Avatar
+1 those are some stout e-tracts. i really need to make a bow for wings, im hot wiring all mine from stations 4in wide atm.

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