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Mig-17 'Fresco' for 30mm EDF

Old 02-05-2010, 07:54 PM
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JetPlaneFlyer
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Default Mig-17 'Fresco' for 30mm EDF

Here's my new project, it's a 17" span Mig 17 'Fresco' for 30mm EDF power. The prototype is freeflight but I'm also looking at a RC option.

I'll be using one of the AEO 30mm fans with brushless motor which I've tested at 70-75g thrust. I'm forcasting an all up weight around 90g.

This is the plan i've drawn up:



And here is the build so far, it weighs 30g as photographed.

All comments and advice welcome.

Steve
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Old 02-05-2010, 07:57 PM
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Larry3215
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Wow! Great job on the plans and the build. Very nice work!

Looking forward to some video
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Old 02-08-2010, 09:28 PM
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Thanks larry. I've now got all the ducting and electronics installed. Current weight with only covering and trim to go is 77g so looking good to hit my target weight:
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Old 02-17-2010, 07:13 PM
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I've been away over the weekend so i only got busy on the Mig again yestday. It's now covered with Esaki tissue and doped.

Today was dead calm so i took it out for some test glides without the electronics installed.. I figured test gliding it without the electronics (and so much lighter) would reduce any chances of damage but would still let me establish the proper CG and trim out any turns etc. Test glides went well, the CG ended up well aft of where i expected which may indicate that I need to add some more negative incidence on the stabiliser.. But the glide looked good and it appeared stable so I'll install the electronics and see how she goes under power. If all looks ok under power then it's time for painting and detailing

Steve
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Old 04-06-2010, 08:07 PM
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Almost finished...
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Old 04-06-2010, 08:10 PM
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pd1
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That model looks a lot neater and better constructed than the full scale one.

Paul
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Old 04-17-2010, 10:13 PM
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The build of the real ones did leave a bit to be desired aesthetically. It's actually one of the things that appeals to me about the early generation Russian jets, they put 'function' first and 'form' a distant second. They were no-nonesence bits of kit.

Here's my model all finished up...
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Old 04-17-2010, 11:21 PM
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The Mig 17 came out very nice.
I'll bet it flies better than the original too.
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Old 04-18-2010, 07:43 AM
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NitroCharged
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Fantastic finish Steve. It looks brilliant!
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Old 04-19-2010, 06:29 AM
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Bill G
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Looks excellent JPF!
I'll have to get back on the 30mm EDFs someday. It will be a lot easier, than when I was remotoring them with 12mm Feigaos. Those Steve Bage and other Jetex designs are very appealing for 30mm EDF. I look at his stuff, Jetex, and at the free flight uk site often.
If the airframe is anything like the similar FW250, which it looks to be, then it should be an excellent flyer. One of the best flyers I have. I also have a Mig17 that I still need to fly. :o I got it, as they are such a good looking jet.

In the unlikely event that someone other than yourself and the few other remaining builders in the world would be interested, (pardon the pun) these are the sites I'm at almost daily looking at these EDF30 potential planes:
2 links at bottom of page:
http://jetex.org/models/plans.html

http://www.ffscale.co.uk/
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Old 04-19-2010, 12:38 PM
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All,
Thanks for all the kind words, I am very pleased with the way the model has come out.

The camo finish is great for disguising any minor imperfections etc.. I might regret it when it comes to tracking the model in flight and finding it in long grass though.

Bill,
jetex.org and ffscale are two of my favourite sites too (I am that man Steve Bage by the way). The Mig-17 was built largely in response to the chronic shortage and reliability issues of Rapier motors but now I've hopefully got to grips with the EDF thing I'll be doing some more. Some of my old Rapier designs may be quite easy to convert for EDF but I've got a few new designs in mind too. The next one will probably be for micro RC though.

Your FW-250 looks real nice.. Do you have any more details.. plans, build thread or similar?

Steve

PS.. A new batch of Rapiers has recently landed in the UK but all sold out to back orders.. A shipment is also on it's way to Shorty's Basement in the States but it's going surface mail so will take a few weeks.
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Old 04-20-2010, 04:36 AM
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Great to meet you Steve! I've long been a fan of the Jetex free flighters. Much of my build inspiration has come from the Jetex related sites. I actually have 2 of the plans in your links resized, printed, and stashed for potential builds. I can fully say that the Richard Crossley jetex 262 is what made the EDF30 ME262 a must have. Knowing now who the builder of the Mig in this thead is, certainly explains the excellent work, as it seemed to be from a very skilled builder. I've learned firsthand how intricate the small EDF builds are. Not many folks at it.

The 250 was one of those builds that worked out well, for whatever unknown reasons, as it was pretty much just slammed together. After building it and a FW250 Flitzer, I became convinced that the GWS 109 wing works quite well swept, which is what I had read about the basic section of the wing, roughly an E222 I believe. The build actually started from a box of empty wine bottle packaging that was in the trash, at a house I was working in, of all things. The foam seemed to be as good as any quality EPO I've had my hands on, so somehow I got the idea to use it for the 250 build. I've lost build links through several computer deaths, but here are some of the highlights of the build. I'm quite a Luftwaffe jet and Luft '46 fan, and also have modeled the FW225 flitzer, a great flyer, with several other Luft jets.

One of the things I enjoy about building EDFs is the use of non-conventional building materials and methods. For prop plane construction, I'm much more of a balsa purist.
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Old 05-11-2010, 06:42 AM
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chilensis
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hi, very nice plane, im building a mig-15 too, it seems there are some diferences on wings with mig-17, my will be finished very soom , in the meantime id built a me-262 test version with 2 edf-75 of gws , look it at "chilensis" what do you think ... 850 grs total weight .. how can i get the plans for mig-17 ? i create my plans on cad for the mig-15.

thank you c.rapaz (from chile )
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Old 05-11-2010, 11:48 PM
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jetblast
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Default ME262

Bill G, very nice ME262. Is/was there a build thread ?
Can you give any particulars like edf specs, auw, build material etc..
Thanks.
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Old 05-12-2010, 02:38 AM
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Hi, thank you very much for your observations, the plane is made in depron and foam( polystirene sheets), the motors are 2 gws edf-75 x4 with the original motors(brushed 400) , it seem those can give poor power, but i made a cone and tested i think thrust 400 grs each, the me-262 finally weight 850 grs, i have to push the stick to the maximun for get the thrust, but is a test model , just to calculate weight and thrust(diemensions are: 120 cm wings, 90 cm fus.), in future i will recalculate for edf in brushless.

I have another jet in construcion , like i say a mig-15 , similar dimensions, this time it will made with edf brushless ( turnigy B2445-3790kv very cheap at hobbyking.com near US$ 12 !!!) this one certainly give thrust almost 800 grs of power(static), i post photo of this one.
if you like can see other plane at you tube( videos, carlos rapaz ), a bimotor i made in wood, 2 gws 350c-A geared motor , it fly great ... just look !!!

i have the plan for the me-262, i draw in cad, if you want to get , just ask

bye

p.s. send other planes you had made for ideas
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Old 01-19-2012, 09:17 AM
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salat
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Steve? where are you?
Have anybody had a chance to get pdf of this plan? I see it absent now.
Thanks
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Old 01-27-2012, 04:57 AM
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Sakai's Freedom Flight
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Default Isn't that NVAF Colonel Tomb's (dec.) '17?

Originally Posted by JetPlaneFlyer View Post
The build of the real ones did leave a bit to be desired aesthetically. It's actually one of the things that appeals to me about the early generation Russian jets, they put 'function' first and 'form' a distant second. They were no-nonesence bits of kit.

Here's my model all finished up...
Not trying to impress anyone with ancient memories or be intrusive but I just saw this (new here) and was startled by the numbers on that MiG. It's been almost two years stagnant on this thread but historically speaking, if I remember correctly, North Vietnam Air Force MiG #3020 was flown by their leading ace, Colonel Tomb, who was shot down (and killed) by our esteemed Randall "Duke" Cunningham, USN, back in '72. I'm pretty sure (away from my Historical Documents--actual books).
Thing is, I think, possibly, maybe, was #3020 actually his personal MiG-21? I know he was shot down in his '17. So, did you get those decals from a 1/72 scale Hasegawa model kit "back in the day" ( I have those numbers on one of my old plastic model MiGs--that's how I remember) ?
This is why aviation history is so fascinating...the people, their planes, what becomes of them...
Absolutely beautiful job on that plane, no matter the numbers on her. I'm getting old but those numbers sure bring back memories.... Also #3246 rings a Vietnamese MiG bell in my head. Very important history we cannot allow to be erased. Please let me know if my numbers are off.
God bless!

Last edited by Sakai's Freedom Flight; 01-27-2012 at 07:02 AM. Reason: It WAS Duke, USN; Tomb was real, too.
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