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Author Topic: Dewoitine D.500 or D.510 plans?  (Read 2587 times)
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Greg Langelius
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« Reply #25 on: June 09, 2019, 10:30:53 AM »

The way to get 24" plans from Peanut plans is to use the Printer screen scaling option.

The scaling factor to enlarge the 13" w/s to a 24" w/s is 185% (24/13=1.85).

If this results in a page that's larger than you printer paper, use the tiling option, too.

The Fillon plan is probably a very good application for this technique, once you take some time and fully understand and interpret the construction layout.

Greg
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Pete Fardell
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« Reply #26 on: June 09, 2019, 02:01:45 PM »

Thanks Greg. I actually enlarged it on the photocopier at work which, unlike my printer, can go up to A3.
The Fillon plan is for three different aircraft made by two different methods, so as plans go it’s not the easiest to follow but okay once you train your brain to ignore the irrelevant bits. I do think doubling up peanut plans is a good way to get a nice light 26” span build. Here’s where I’m at- just the basic fus. box so far with a lot of corner gussets added to keep it nice and  square...
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dorme
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« Reply #27 on: June 09, 2019, 02:13:54 PM »

Try this site.  bottom of page.

http://www.jimoreillymodelplans.com/ScaleModels.htm
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Pete Fardell
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« Reply #28 on: June 12, 2019, 01:12:21 PM »

Thanks for that, dorme. Would be interesting to see it but I’m committed to the Fillon plan now. At least I thought I was, but I made the mistake of comparing it to photos and a good 3 view just ‘to see’ how accurate it was. Of course once I found out what was wrong about it I couldn’t resist changing a few things to make a more realistic model; a very slippery slope! The fuselage needed widening and deepening at the front, but is otherwise okayish in outline. The wing however, when compared to the fuselage, is nearly 3 inches too short in span. I just can’t help correcting it now I know, so this model will become a 29” span model rather than the planned 26”. Still, that might even be a better size. All this checking has slowed me right down, but here is the fuselage with some shape creating stringers added. I’m half wondering if Ivan’s trick of adding filler over tissue and sanding smooth is feasible on a small model like this. I’m guessing not.
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fred
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« Reply #29 on: June 12, 2019, 02:22:17 PM »

Reassuring that.. I also found that scaling up (x2) Peanuts resulted in a plan /model not even close to scale.
Was surprised by that.  I naively assumed Peanuts 'Scale' actually was. 
Seems it's not a given, then
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Pete Fardell
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« Reply #30 on: June 24, 2019, 05:21:18 PM »

Rather slow progress but I now have a wing. I built it over a blown up 3 view and have more or less abandoned the Emmanuel Fillon plan now, it being just too unnecessarily inaccurate for my peace of mind (although happily the fuselage will always be Fillon at its inner core).
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Rhys
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« Reply #31 on: June 25, 2019, 11:51:52 PM »

Glad to see your Dewoitine taking shape. I always enjoy watching your builds come to life.
Rhys
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Tim Horne
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« Reply #32 on: June 26, 2019, 06:53:13 PM »

Looks a nice light structure Pete. I presume you are aiming this at open rubber, or are you making this one just for fun flying?
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Pete Fardell
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« Reply #33 on: June 27, 2019, 06:53:41 PM »

Good question! I did start out just making it for fun, but now that I've taken a bit of trouble to get the outines and dimensions more accurate I will try and document it properly, so it might end up in the odd competition. I've found a few photos of D.500 no.111, so that's the one I'll do. Nice simple scheme; silver with roundels and just a little French flag on the fuselage.
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Pete Fardell
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« Reply #34 on: July 03, 2019, 06:13:50 PM »

Really rather just making it up as I go along now, with some sanded-thinner 1/32 sheet added to the fuselage and some paper gun troughs. One or two more pieces still to go onto the topside, then I’m hoping I can sand, fill and tissue over the cracks until I end up with something vaguely smooth and shapely. It’s not a very scientific approach though...
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Tim Horne
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« Reply #35 on: July 03, 2019, 07:13:28 PM »

Really rather just making it up as I go along now, It’s not a very scientific approach though...

I could write that every time I build an own design model. Nothing wrong with it at all.  Smiley
Good work Pete.
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DHnut
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« Reply #36 on: July 03, 2019, 07:19:19 PM »

Pete,
        I know the feeling well when you start out with a simple build and it escalates into a full blown project. There are "improved" models sitting on my workbench now including a Flyline Bellanca. I like the progress so far and look forward to the progress. It is certainly an unusual aeropane in the steping stone era to the full blown monoplane fighter.
Ricky
   
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DavidJP
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« Reply #37 on: July 04, 2019, 07:58:35 AM »

Yes...... many of us I think at some time or other make it up as we go along - even on occasions if building from a proven plan or a kit. So what is a scientific approach then?  You now have some considerable experience of building models so 'scientific" or "knowledge gained by experience" does it matter?  By the way your stamina for building models still impresses me. 
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Pete Fardell
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« Reply #38 on: July 20, 2019, 09:20:22 AM »

Thanks chaps. Rather slow progress lately but hopefully now that my well deserved 6 week holiday has started I can get a bit of a wriggle on. I might even aim for the Aug nats if it seems viable as an outdoor model.
I thought a lot about wing attachment and particularly the possibility of making the wings knockoffable. However, what with the underside radiator and the undercarriage struts going to both the fus. and the wing I’ve decided to make it a one piece model and avoid any wing damage simply by not ever crashing it.
To this end, I’ve already covered the wing so that I can fix it in place and then just build up the underside of the fuselage around it. It’s not actually glued in yet, so someone tell me if this is a bad idea....
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LASTWOODSMAN
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« Reply #39 on: July 20, 2019, 09:54:01 AM »

Hi Pete.  Great pics!  That Dewoitine model has style ...   Cool

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« Reply #40 on: July 20, 2019, 01:16:32 PM »

It's looking good Pete.

Quote
so someone tell me if this is a bad idea....

I think personally I would have made the tips out board of the UC knock off, but with a very light model you may get away with it being one piece ?

oh and 6 weeks holiday !!!! very nice
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DavidJP
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« Reply #41 on: July 20, 2019, 01:40:18 PM »

Looking very good - so while you were at the day job you have achieved all that in just over a month!  Amazing because I don't have a day job and can no where near achieve that kind of progress.  Well done.
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dputt7
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« Reply #42 on: July 20, 2019, 08:36:02 PM »


  Very nice Pete. always been a favourite of mine.
I’ve decided to make it a one piece model and avoid any wing damage simply by not ever crashing it.

Could we have an explanation of how this is achieved as it would be very handy to know. Grin

 David , I know what you mean, I'm just heading for the 9th month of my retirement and my model production has reduced significantly.
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Pete Fardell
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« Reply #43 on: August 08, 2019, 12:03:12 PM »

Quick Q: Does the tailplane look big enough if I build it to scale?
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billdennis747
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« Reply #44 on: August 08, 2019, 12:12:29 PM »

I'd say yes
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Pete Fardell
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« Reply #45 on: August 10, 2019, 07:28:21 AM »

Thanks Bill. It now has a tail then. Still looks a little small to me...
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billdennis747
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« Reply #46 on: August 10, 2019, 07:31:50 AM »

It does in that photo. It's a Fairchild 24 tail - how does it compare % area-wise? Looks easy to retro fit a bigger one if necessary
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Pete Fardell
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« Reply #47 on: August 10, 2019, 08:20:09 AM »

It is similar very to the Fairchild’s. Slightly wider but slightly smaller chord. Both around 14 sq inches I reckon. Dewoitine’s wingspan is a good big more than the Fairchild at nearly 29” but area maybe not so much bigger in area due to the taper. About 105 sq in I think.
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Graham Banham
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« Reply #48 on: August 10, 2019, 09:35:10 AM »

Pete,

I'd cut a test one out of 1/16 sheet with a linear 15% enlargement. The scale one may be ok with a lot of decalage (4-5 degrees) and a forward CG as the tail moment looks pretty good, but it does look a bit marginal
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Indoorflyer
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« Reply #49 on: August 10, 2019, 10:31:18 AM »

What is the stab to wing area ratio?  Once you've got that, might as well calculate tail volume.  Roll Eyes      The eye is usually fooled by the wing taper,and high(er) aspect ratio with respect to stab size...
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