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Maule scratchbuild

Old 01-05-2016, 03:15 AM
  #26  
crodrigues
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Thanks a lot.

I hope you can find or re-scan the drawing for me.

Carlos
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Old 01-05-2016, 03:59 AM
  #27  
birdDog
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Ahhh yes. Another one addicted.
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Old 01-05-2016, 12:44 PM
  #28  
crodrigues
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Thanks,

I will wait for it.
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Old 01-05-2016, 12:45 PM
  #29  
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Thanks,

i will wait for the plans.
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Old 08-18-2018, 04:09 AM
  #30  
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9 years later...

Finally had a moment to work on the model again. Unfortunately the file that had a digital copy is gone, if I can find another source to get a digital copy/scan, I will. Otherwise, I think my future designs will be all on computer. Sorry about the absence of uploads of the plans, I think I might want to redesign it honestly and let others have at that design.

I have created the under cowl section, not sure what year that was, but the next one will be moulded plastic, not doing balsa and fiberglass and bondo again.

Finished up the mount for the wing, trimmed out the windows, found many mistakes, and thinking of solutions, most of it involves fiberglass or nylon cloth. Should see final progress this year.

The wing has a floating spar and 4 pin wing attachment. I didnt quite plan this out in the early design process so I had to settle for more complex assembly and time consuming thinking about where to add structure and cloth. Had I built the parts before the wing was assembled, it would have not have been a headache where I groan just looking at the pieces on the table. The motor mount is still at the not sure stage.
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Old 08-18-2018, 05:37 PM
  #31  
park
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I remember this build !
Don’t feel bad I have a Guillows C-150 I’ve been working on now for 10 years......

Ken
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Old 08-19-2018, 06:24 AM
  #32  
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1 of 12 nylon + CA reinforcements, built up the top a bit, and sanded a bit more. Next time I will do more sanding and filling of the nose, might work on a motor mount (extension) next time. Getting closer to adding the servo mounts, other fittings like anchor points for the wing struts, and landing gear.
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Old 08-19-2018, 12:25 PM
  #33  
josh59L
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looking great!
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Old 08-19-2018, 12:45 PM
  #34  
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Hello my name is josh and I've been roaming the internet for months trying to find someone who is working on a Maule project and I happened to come across yours and it looks like you're making some good progress on it. I would like to start a build of my own Maule here in the near future I'm hoping. My grandfather bought an M-7 brand new from the Maule factory back in 2000 and I grew up with it. Best days of my life were spent around that airplane. He sold it back in 2013. I think it would be very awesome to try and replicate his since I know I'll never own the real one he had (a little too expensive) lol. I would like to talk to you a little more about yours if that would be possible? Thanks
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Old 08-19-2018, 09:25 PM
  #35  
PMcIntire
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Originally Posted by josh59L View Post
Hello my name is josh and I've been roaming the internet for months trying to find someone who is working on a Maule project and I happened to come across yours and it looks like you're making some good progress on it. I would like to start a build of my own Maule here in the near future I'm hoping. My grandfather bought an M-7 brand new from the Maule factory back in 2000 and I grew up with it. Best days of my life were spent around that airplane. He sold it back in 2013. I think it would be very awesome to try and replicate his since I know I'll never own the real one he had (a little too expensive) lol. I would like to talk to you a little more about yours if that would be possible? Thanks
Ask away.
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Old 08-20-2018, 01:20 PM
  #36  
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What part of the airplane did you first start on?
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Old 08-20-2018, 01:21 PM
  #37  
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I don't have any plans and I'm just going by looking at the airplane.
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Old 08-20-2018, 01:23 PM
  #38  
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This will be my first build and so I'm new to all of this and I'm just not really sure where to start.
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Old 08-21-2018, 08:14 PM
  #39  
PMcIntire
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When I started this project, I started with a 3 view image, blew it up, and overlaid a grid on it, then drew a grid on the original plans to get the basic outline shape. My first goal is just to get something at the size I want with pencil. I figured out a multiplying factor and then approximated the outline in pencil.

Everything after that, was just hand drawing the structure so it looked about right, then inked it, erased the pencil and grid, had it scanned and duplicated.

I had to think of ribs, airfoil choice, weak points, areas subject to high stress and force, size constraints of balsa sheets and sticks. I did make a mistake in not reducing the complexity of the cowl and motor mount, not planning out the wing attachment method, nor the strength of the joiner for the wing to the fuselage. I also didnt quite make the rudder structure strong enough, so I will have to reinforce it as it flexes too much.

As far as what I built first, pretty sure it was the wing sections. Having built wood kits, I didnt need much guidance or thought on the process to follow as I already read several manuals guiding my workflow. Wing, the tail feathers, then fuselage.

If you look at the plans on page one, you'll notice I was going with a one piece wing, then I had a plane too big for my car, and I changed the design on the fly to a two piece wing, a different spar, I scrapped the sheeted leading edge design, and if you look carefully, notice the plywood bottom is not where the landing gear will attach. I was going to make this a tricylce gear model, and then decided to put 4 or 5 inch inflatable trexler wheels on it. (Yes, BIG bush pilot wheels)

Its all about how much I deviated from the design as drawn. Its ok that I did it, but there are consequences to productivty when you start to make too much of the model on the fly, and start to depend on it, rather than just building what you drew.

The next model I design, I will have to document my thinking and maybe write a quick guide for scratch designs, and at a keyboard rather than a phone...
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Old 08-22-2018, 10:46 AM
  #40  
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Thank you very much for your response and your build process this helps a lot. I plan on building a 1/4 scale M-7
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Old 08-24-2018, 09:47 AM
  #41  
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I weighed most of the parts that will get put onto the airframe, its at around 46.6 ounces for everything so far, motor, batteries, wheels, servos + miscellaneous. I think it will wind up around 52-56 ounces RTF. As a comparison, it is slightly smaller than the E-fllite Maule released this year at about a 56" span, and hopefully weighing less. The E-flite Maule is 60" span, 66 ounces, and I thought I built mine too heavy, or still find it a bit too heavy... 3.25 sq ft of wing yields a fairly typical 16-17 oz/ft^2.

I reinforced the tail, and trimmed out the forward side windows a bit. Tomorrow, I have the options of scuplting the nose, sculpting of the tail, wing servo mounts, and maybe a new motor mount.
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Old 08-24-2018, 09:50 AM
  #42  
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Its lookin really nice
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Old 05-26-2019, 03:26 AM
  #43  
NikUnlags
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I just bought the Fuji 1/700 USS Constellation CV-64, unfortunately it did not come with life raft canisters that are attached to the sides of the lower flight deck. Can anyone give me ideas on how I can scratchbuild them to look semi-realistic?

Rod
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