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Old Jan 08, 2012, 01:05 PM
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scratch built micro Dr.1 - Richtofen's No. 152/17

this is my latest print directly to foam micro build. I'm posting it here because I think there will be more interest in WWI aspect of it. it is built to 1/20 scale and the dimensions were kept as close as possible to the real aircraft. short nose, small rudder and all!

wingspan: 14.1"
weight: 35g with 160mah battery
ar6400 brick, as2000 aileron servo, and 8.5mm micro mustang gearbox and motor.

starts with some new development. I'm using the 1mm pro-formance greatplanes foam. it is about 40% lighter in density. it is equally as more flexible so I was concerned a bit about strength but it does really well.

I used it exactly like the 1mm RCfoam.com material. this same process described here: http://www.wattflyer.com/forums/showthread.php?t=55808

I've also switched to Beacon's foam-tac glue. it is truly fantastic. quick grab and strong bond. clear and flexible. it's similar to using welder's on epp foam.

the wings are heat molded to get the heavy curve and end up undercambered and creat alot of lift.

the aileron control is an AS2000 servo with push wire and tube made from a .010" guitar string and 3/64 clear shrink tube shrunk down to .015". it uses 8mm plantraco fiberglass control horns.the total weight of this is only 2 grams with the servo! however, in retrospect, I would shrink the tubing down to 012" or 013" next time and use powdered teflon inside for lubrication.

the spandaus are my new design 1/20 scale barrel shrouds made from black paper and cut on a cnc cutter. the rest is just deporn foam, a .020" CF rod in the middle, and 4lb fireline used to make the gunsights.

the cowl is a fairly lazy development, I would love to say I vaccum formed it, but the truth is it's a glad 4oz. round container bottom. it's cut to shape, and painted with a mix of a tiny bit of green,zinc chromate yellow, and mostly italian red. this mix gave me the "green cowl over-painted red" look I wanted.
It is held on with magnets and has thin nylon tabs holding it in around the edges.

As you can see, the internals are stacked. I was worried that this would be a really tail heavy plane if I didn't stack the motor reciever and battery tight and all the way forward. but as it turns out, it is a little nose heavy and balances at approx. 20% back from the LE of the top wing. this makes it fly too quick for my liking, so I'm going to redo the battery holder and push the battery back until it can balance at 30% back o the top wing, and see how she behaves.

the LG is a new design that is a bit heavier but stronger and removable.
it uses a sandwich of 1/64 ply to make a slot in the bottom of the fuselage much like an eflite slow flyer is designed. the back struts of the landing gear are just bent wire. there is a piece of .020" ID tubing glued in
under the lower wing inside the fuse that the wire pushes into on each side about a 1/4". this makes for a stronger design, and still pretty light.

the wheels are made different from in the past also. they have a center disc of 1/64 aircraft ply, a wheel made from 2mm polyurethane foam, and printed paper on each side, with the outer one being coned to get the desired look.

that's most of it, I flew it last night at my indoor fly club and it was nose heavy. but that should be a fairly easy fix on a Dr.1
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Last edited by dcwwcp; Jan 08, 2012 at 11:53 PM.
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Old Jan 08, 2012, 01:07 PM
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a few more pics.....
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Old Jan 08, 2012, 03:43 PM
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Centreville,VA,USA
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Wow! Excellent, great job looks very cool.

Pete
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Old Jan 08, 2012, 04:21 PM
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Very nice.
It's a thing of beauty and you should be very proud.
looking forward to an in-flight video from you.
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Old Jan 08, 2012, 04:34 PM
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Port Orchard Washington
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ok now do you have plans or construction photos to go with this totally great looking plane. btw great job really nicely done i look forward to seeing more of the plane
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Old Jan 08, 2012, 08:41 PM
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Dcw,

The more I look at your build and esp your paint job the more I like it, again excellent job.

Could you list the paints and colors/mixes you used. Love the colors, blends shading effects. How did you do the top wing decal areas to be a lighter faded color? Looks great, the green streaking is also pretty darn cool. I plan on doing my FZ Dr-I as Kempf's and would love to get a streaking effect as you've been able to do. I also like the undersurface color. Did you use a paper model plan? If so which one? PS the MG's look great too.

Thanks,

Pete
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Old Jan 08, 2012, 10:18 PM
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thank you very much. I appreciate the kind words.

well like I said it's a print directly to foam model. so I buy a card model graphic and manipulate the tar out of it. I first find some sold reference about the real plane. dimmensions, and 3 view drawing that are accurate. then modify the graphics to be more accurately scale if they are not. and of corse they are blown up quite a bit.

the only thing that is painted is the cowl, the pilot, and the spandaus. the rest is the graphics. they are truly amazing. the person who does these is the best I've seen. you can find mountains of card model graphics at ecardmodels.com

I have kempf's graphics. they are available at the same place. they are not quite as good but they are still good. I am a big fan of kempf's plane also.
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Old Jan 08, 2012, 10:25 PM
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Okay, Got it what printer did you use and did you use Ink aid on the foam?

I couldn't check out the post you refered to not sure about the link did you do a write up some where on printing to foam? Love to ba able to do that look like a lot of skils to do so at that size.

Thanks for any info.


Pete
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Old Jan 08, 2012, 10:25 PM
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i had planned to convert my flyzone Dr1 to a Kempf-ish looking one
It won't be as good as yours, but it won't be red either...

The spandaus are fantastic
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Old Jan 08, 2012, 11:56 PM
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oops, sorry about that, the linked should be fixed now. go check it out.

blazingstar- thank you. yeah I'm real happy with them. I'm thinking about making a kit out of them and making a whole batch of them at once.
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Old Jan 09, 2012, 12:36 AM
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sounds good.
your pilot is the flyzone one?
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Old Jan 09, 2012, 05:59 PM
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Wow!!.... she's an absolute beauty!!!
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Old Jan 10, 2012, 09:02 AM
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Hey dcwwcp,

Sent you a PM

Pete
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Old Jan 10, 2012, 09:56 AM
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USA, MO, Smithville
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DCW
Nice work can't wait to see the vids of it flying. Another great build to along with your SE5, your Fokker DVII now this great Fokker DRI. Scott and I tried making this a three chancel but you need the ailerons to make it fly.
Scott and Mike
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Old Jan 10, 2012, 02:22 PM
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Hey Mike
this would look great flying with your DH2
Why do you say it needs ailerons? The flyzone dr1 is a three channel plane? ??
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