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MAK 15 MP

My new project

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Peter Miller16/06/2018 13:59:47
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I need a new and different project. and I remembered my CO2 powered free flight model from the early 1990s.

This rather unusual Russian powered glider was based on the MAK 15 glider. I only had a very small silhouette 3 view and small photo. The model was 22 span and flew like a dream

mak 15 mp co2.jpg

A little while ago I got hold of a CD with photos, drawings and even a bideo. The text was in Russian.

I made the mistake of mentioning the idea to Graham Ashby who promptly insisted on having the plans.

The model will be electric powered and 71" span with about 625 sq in. of area

I can say that designing the thing is a bit of a nightmare but it will be quite simple to build.

Comments welcomed/.

Don't hold your breaths, It will take a little while before I start building, well, a few weeks.

I can tell you that there will be 40 wing ribs to cut out. from about 20" long down to about 7 1/2"

Edited By Peter Miller on 16/06/2018 14:02:34

Geoff Peacock18/06/2018 13:09:57
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A Peter Miller post, on here for two days and no replies - that must be a record. Everybody watching the world cup?

Love the design Peter - but electric? Something a little smaller for diesel/glow and I'd be on the case.

The fuselage is very reminiscent of Ringtail, and Australian C/L design from the late 50s/early 60s, which had twin booms. Possibly an r/c conversion - I'm considering it at the moment.

Peter Miller18/06/2018 13:27:25
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Hi Geoff

Well it would be fine with an .09 up front I think.

Alternatively you could always get your local print shop to reduce it in size to suit your own preferences

.

Geoff Peacock18/06/2018 16:33:18
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Isn't an .09 a bit small for 72" wingspan Peter? That size is way too big for my shed - I was thinking of something around 48" max. - about as big as I can handle (unfortunately) these days after moving house not too long ago and inheriting a very small shed!

As for the print shop suggestion - I would prefer to redraw the plan in vector format and scale it. That way I can resize the wood to be correct. Drawing and illustration is what I did for a living for many years - I now seem to spend a lot of rainy days chained to the Applemac since retiring, purely for enjoyment. Sad, or what?

Going back to my previous post - I'm surprised nobody seems interested in this plan. I think it's great, so assume that It can only be the electrickery thing - the only downside for me - hence my earlier comment.

Diesel in the blood, but I can stretch to glow when needed thinking.

fly boy318/06/2018 17:21:46
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I like it Peter. I am an ic nut, but getting to grips with electric. Your Easter Eagle is a great flier, so no doubt this new project will be too. 71inches is also good for me at my adavanced age lol. Only trouble is that I was going to build the EE senior, but I might wait a bit. Cheers

Peter Miller18/06/2018 18:17:43
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Goeff. This is a powered glider. My Kitehawk is adequately powered with a .06 or 1 cc engine. and that is 61" span. It would fly on an .049. a .09 would be fine

Fly Boy. Don't hold your breath. I have only just started design and the design side is far more complicated than most. While the CO2 great I have to find out how this one will fly. IT should but.

Now the Easter Eagle senior is a real dream. There is the original version but that has a carbon fibre tail boom at a mere 55" span.

I did design another version with a similar fuselage to the Senior but it was published in the USA

Geoff Peacock18/06/2018 21:00:34
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Sorry Peter, the 'spinner' on the front and the likeness to Ringtail got me going down the track of an an all-out power machine. Revised thinking is now to scale it down and use my Boddo-Mills 0.5cc diesel.

Any further thoughts would be welcome.

Peter Miller18/06/2018 21:03:00
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Now that sounds reasonable. Should be a nice model.

Maybe, once I have done the drawings I will send you PDF files so you can play with that size. How about that

Peter Miller18/06/2018 21:10:43
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Just thought that I would add a full size photo

mak15mp-i.jpg

Bucksboy18/06/2018 21:14:11
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I can get the Russian text translated if you need it.

Peter Miller18/06/2018 21:17:51
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Hi Bucksboy

Many thanks that would be great. At the moment it is on my ancient laptop but tomorrow I will get it on to my Chromebook and can send it to you if I have your email address.

john stones 118/06/2018 22:10:26
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A weird n wonderful project Peter. yes

Gary Manuel18/06/2018 22:19:23
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Interesting. Looks like the wing root profile extends to include the tail plane and elevator.

Geoff Peacock18/06/2018 22:19:43
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Posted by Peter Miller on 18/06/2018 21:03:00:

Now that sounds reasonable. Should be a nice model.

Maybe, once I have done the drawings I will send you PDF files so you can play with that size. How about that

Thanks for the photo Peter. It looks even 'odder' (is that a word?) in the flesh, but definitely worth following up.

Totally bored with watching the 'wrestling match' between England & Tunisia, I switched it off, fired up the Mac and started drawing, after first downloading your plan and opening it up in Illustrator. It came out at 10" span, so I'll trace that, then scale it later to suit the Boddo diesel. After that I can alter the wood sizes to suit. Hope you don't object to my 'playing about' with your work.

I've done the wing plan and ribs already! I can send you a .pdf when I've got as far as I can, so you can compare it.

A copy of yours would be most welcome when it's ready, just to see where I've (no doubt) gone wrong. No rush for this, as I've currently got several other plans on the go. I find it pays to keep at least a couple of jobs on at any one time - I ike to have a break from just one job.

Thanks again for your offer.

Peter Miller19/06/2018 08:19:12
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I do like the occasional weird and wonderful project. Most of them do not work well if at all but I know that this one does fly.

Yes, the wing plan does go right back to the elevators which are flat plate of course.

Hi Geoff.

No, I don't mind in the least. Enjoy. I will PM you shortly. the 22" span version flew like a dream.

Geoff Peacock19/06/2018 15:29:19
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Posted by Peter Miller on 19/06/2018 08:19:12:

Hi Geoff.

No, I don't mind in the least. Enjoy. I will PM you shortly. the 22" span version flew like a dream.

Info duly received with thanks. Looks a little complex - could be quite a challenge! Thinking cap and kettle now on.

Peter Miller19/06/2018 18:27:36
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At the size I am doing it, it is a bit of a headache. It is going to take a while to even draw up.

J V R20/06/2018 11:22:20
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I'll be watching this one Peter...... I do like the unusual

Peter Miller20/06/2018 11:47:07
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Welcome aboard

Peter Miller08/08/2018 21:10:49
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I have started cutting parts out and will now do more since the heat has gone.

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