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WACO YMF

Old 07-13-2007, 05:12 PM
  #3076
Live Wire
 
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500E
The look on your face is all we need
Great Job
Larry K.
Sorry for the edit but great job
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Old 07-13-2007, 07:23 PM
  #3077
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BEEE-YOOOO-TEEE-FULLL !!!

Glad the maiden went well. Bet the pucker factor was off the scale for a few minutes. That's a fine looking plane, you SHOULD be proud. Good luck at the qualifier.


I have the cutouts done on my gear legs. The weight of the bare legs is now 15.5 oz, compared to 15 oz for the original wire gear plus the fiberglass fairing that is on it. Gettin' close; will post more pics tonite.
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Old 07-13-2007, 10:35 PM
  #3078
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Thanks guys!
I'm young enough to do it again

I should say that my intentions at the scale qualifier are purely selfish. I'm just participating to get use to flying in that kind of pressure etc. One day I may be at the Masters level [8D]
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Old 07-14-2007, 12:28 AM
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A couple of guys in my club went to Mint Julep this year and entered the fun scale, or whatever the beginning level is. They want me to go next year, I think I might, take either the UMF, or maybe the UPF if it's done by then. Still haven't got it yet, Aaron said he was hoping to ship it this past Monday.
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Old 07-14-2007, 08:40 AM
  #3080
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Great job HUGHES. Did you do rib stitching detail? If so, how? Also, are you running on-board glow?

Intentions are selfish? Who else would you do it for besides yourself?? Have fun and post more pictures.
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Old 07-14-2007, 08:49 AM
  #3081
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Supercubman- The finished corrugatons on my 'experiment' are .390" on center, .035" tall and approximately .070" wide at the base. Looking at photos of full size stuff the corrugations are really pretty small. I'm shooting more for the illusion of corrugations at this scale. I'll post a picture of my tooling plate sample soon.
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Old 07-14-2007, 11:06 AM
  #3082
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Hi Jay,
Yes, rib stitching, panel lines rivets etc. It's amazing how much that color hides. In the sun you can get a pretty good look, quite subtle though. The stitching was applied with a toothpick and fast tack white glue. It took awhile [:-]


Yes, onboard glow, I'm running a McDaniel's (Sonic Tronic) multi cylinder pulsed setup. I have it setup on my throttle stick.
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Old 07-14-2007, 01:09 PM
  #3083
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Quote:
ORIGINAL: Hughes500E


Yes, rib stitching, panel lines rivets etc. In the sun you can get a pretty good look, quite subtle though.
Just as it should be (subtle); I'll bet it looks really great in "person". The full scales were the same way, you had to be really close to see the detail, but from ten-twelve feet away you could tell there was something beyond just a smooth cover. You got more patience than I do, to put all that stitching detail on. I'm gonna give it a try on the UPF, though.


Here's what I've done this morning, haven't gotten as far as I wanted. I sat and watched "Dogfights" last night instead of working on the gear. Those Luftwaffe guys had to be crazy, ramming their planes and thinking they could survive.

First pic shows the individual pieces in relationship to how they fit the axle, the bracket for the wheel pant, the gear leg, and the axle nut.
Second pic shows them assembled from the outside; third shows it from the inside; fourth is the pant attached with wheel and tire; note the small reliefs for the wheel pant attachment screws, the screw heads prevent the wheel pant bracket from rotating on the axle stub, even if the axle nut loosens (it shouldn't). Fifth is bottom view.

Note the strut mount on the underside of the leg; the balsa and fiberglass skin will fit around it, "sinking" it a bit, and the skin on the otherside will conceal the nylock nuts. I also made new pant brackets out of 1/16" aluminum stock by tracing the old ones. They were a bit chewed up.
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Old 07-14-2007, 02:12 PM
  #3084
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Default RE: WACO YMF

Jay,

The hieght you have for your corrugations is pretty close to scale. I used 3/16" as the full size hieght and came up with .0375 in 1/5th scale, close enough for anyone with out a micrometer. You may be a little wide at the base, but at this scale who is going to know. Attached is a picture of the trailing edge of UBF-2 NC 2091K, most ailerons of the same style, side where interchangable. If you need a larger image, let met know and I can send it via e-mail.

I'll be out there tomorrow and will try to get some actual measurements so we all won't be guessing at the size. The caliperes are in the truck.
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Old 07-14-2007, 02:22 PM
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Hughes,

That color scheme grows on you, doesn't it. The more I look at it, the better I like it. How about a low level, 3/4 view from the front and sides like you are 14" tall doing a walk around. Looking better and better.
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Old 07-14-2007, 02:55 PM
  #3086
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Hey, John---whatcha been up to? Been out to CCA lately? Have you heard anything new regarding the DH-4, will they take it to OshKosh this year?.. I keep thinking how much fun that was, hate it had to end.
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Old 07-14-2007, 03:54 PM
  #3087
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Quote:
ORIGINAL: damifino

Supercubman- The finished corrugatons on my 'experiment' are .390" on center, .035" tall and approximately .070" wide at the base. Looking at photos of full size stuff the corrugations are really pretty small. I'm shooting more for the illusion of corrugations at this scale. I'll post a picture of my tooling plate sample soon.
That would be great! Thanks - With three of us starting up on this model in a few weeks, it may well be easier to copy your method than trying to glue 34 X 4 X 3 of these little pieces on with straight and even spacing. I'll look forward to your pix.

I want to add my grats as well to Hughes500E. The first flight is always the best. The excitement for me in this hobby (obsession!) consists of 40% in the building - 40% in the first flight and 20% in the regular every day flying after you've scratched the paint the first time!
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Old 07-14-2007, 04:25 PM
  #3088
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Hi Ken,

Glen, the Chief Mechanic wants to take the DH-4 to OshKosh, but if the EAA won't let him land on the grass, Al says it won't go. There is a grass strip parallel to the hardsurface just like CCA, but the EAA is being stuborn about landing in the grass. We shall see. Had a big "pot luck" gathering at one of the hangers on the 7th, sort of a late airport 4th of July party. You missed some good food, music and conversation. About 4 of the PT-17s and the Buckner Jumgmiester (Radial) did a fly over a few miles away for a fellow pilots wedding and then came to the party. The yellow ATO, NC 663N, in Museum Hanger 1 has been moved over to Terry's hanger for maintenance or maybe the annual, don't know for sure. Will be there tomorrow and see what's going on. Ken K.(L-4B) is going to Ohio to pick up his wheels for the DR-1 this weekend so he won't be there, he wants to get it up on them "bad". He is in the reverse stage of you, has the landing gear struts, axel sub wing and everything else, but no wheels. The frame work is just about ready to cover.

Picture is of the ATO in the Museum hanger, pretty ain't she. (yes it is a Taperwing)
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Old 07-14-2007, 04:52 PM
  #3089
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Hughes,

Awesome job - well done. I too am planning on the Saito 170 R3, so any pointers/wisdom would help me. I am sure it sounds really cool![8D] Any chance of a video?
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Old 07-14-2007, 05:28 PM
  #3090
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Skylark- I may end up buying a cutter to do the final tooling plate. For this prototype I've simply tilted the head of my mill 45 degrees to cut the grooves. The real corrugations are not 90 degree bends. I'd appreciate some measurements and angles of the full size corrugations before I do the real thing. The first layup I did was 2 layers of brown paper bag and West System epoxy. Next I'm gonna try 1 layer of paper and 1 layer of 1/2 oz. fiberglass. The 2 layers of paper is plenty strong but is brittle. The composite (whatever it ends up being) will be vacuum bagged to the tooling plate and the finished parts should be strong enough to use as the aileron skin itself (no balsa sheet).
If this works out I may offer the aileron skins for those interested.
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Old 07-14-2007, 05:47 PM
  #3091
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Jay,

I'll try to get some shots that are at right angles (and closer) to the trailing edge so the picture can be blown up to make measureing the angles and radius at the base and top of the corrugations easier. With this info you can get the correct cutter gound to make the tooling plate.

I wonder what a layer of carbon fiber laid 45° to the fiberglass would do to stiffen the skin. Just curious thinking at the moment.
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Old 07-14-2007, 07:24 PM
  #3092
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The carbon will make it a very strong piece. Stiffness was not lacking in the first try, it is just a little brittle. I'm just thinking about sneeking up on a matrix that is- 1. Cheap 2. Strong enough 3. Light. The brown paper bag rates right up there in the first category! And fiberglass is cheap too. There was/is a homebuilt aircraft whose construction consisted almost entirely of craft paper and epoxy. Sounds good to me because the craft paper absorbs the epoxy nicely and the fiberglass should help cure the brittleness. After all, the aileron skin will not see any bending to the degree that I tested my double layer brown bag part.
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Old 07-14-2007, 11:06 PM
  #3093
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How strong do the aileron skins need to be? There is minimal longitudinal bending of the lower surface to match the curve of the wingtip, and the ribs will give all the stiffness necessary front to back. Fiberglass on one side should give all the strength needed, don't you think?

John-- I can't imagine EAA being that thick-headed about using 300 feet of grass, especially in light of the uniqueness of this plane, and the fact that most people alive have never seen one at all, much less a flying example. (Imagine, we're not part of that group !! ) If that thing shows up at Air Venture, it will steal the show.

If Ken has made significant progress on the DR-1, make some pics of it, please.


I've got the basic skins on the gear legs, got to sand them and shape the leading and trailing edges, then fiberglass them.
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Old 07-14-2007, 11:44 PM
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Ken H.

Ken K. has all four wings on the rack, all fittings in place, the plywood is off the fuse to do some welding on the underside (he flipped it over to weld the floor mounts, rudder pedal mounts, etc.), Rudder, Elevator and stab are done (hinges and control horns located and welded in place), the ailerons are complete with cable trailing edges and everything else is about ready to cover, just the multitude of nit-noid things that need to be done before covering (fairing in the aileron hinges, running the contol cables and hooking up the interior pulleys, that kind of stuff). It looks just like one of our planes (only bigger) in the same status. Won't be any pictures for a couple of weeks, he's out of town getting the wheels/brakes assemblys from a guy in Ohio.
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Old 07-15-2007, 06:02 AM
  #3095
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Default RE: WACO YMF

Here's one that has been, er, a, "rekitted". It's gonna need a lot more than a welding torch. Item 140137278153

http://cgi.ebay.com/ebaymotors/Waco-...QQcmdZViewItem
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Old 07-15-2007, 09:24 AM
  #3096
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Quote:
ORIGINAL: Michaelj2k

It's gonna need a lot more than a welding torch.
A little epoxy, couple sticks of balsa.............good as new !! I'd like to know the details of that plane's demise. There's a lot of missing info that would help a potential buyer. The airframe number, for one thing. Hard to speculate, but looked like a major "face plant" given the condition of the prop and the bent pushrod tubes as well as the boxes full of cowl pieces.

Hey, John----there ya go! the guys at CCA can help you get it up and running in a week or two
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Old 07-15-2007, 01:03 PM
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Jay,

My T's have arrived, many thanks.

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Old 07-15-2007, 02:39 PM
  #3098
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Quote:
ORIGINAL: Stickbuilder

I bought the Pica YMF 3/5 on ebay yesterday. I have offered it to 2 kit cutters to see if they would be interested in reproducing this one. I believe that the Copyright has expired on this kit, and PICA is no longer in business. I need a little help here. all who would be interested in a new kit of this model, please let me know. These are business people, and they will want an idea of the demand for this one prior to making this kind of investment.

Weren't you just threatening some other guy who was talking about making kits, something that no one will ever use those patterns to make one of those planes in any numbers espececially for profit, Cease and Desist orders, Pica had never been bankrupt and all that, and did he have the guts to see it through, "you did have the will and money or whatever" but no one was ever going to go into production, or ever make a profit off it and now your shopping it around trying to assess demand prior to investment?

You now need a little help here to get your own prodution running. Very classy and well thought out. Best of luck to you. If anyone should make any money off it it should be you.



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Old 07-15-2007, 02:58 PM
  #3099
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Quote:
ORIGINAL: Michaelj2k

Here's one that has been, er, a, "rekitted". It's gonna need a lot more than a welding torch. Item 140137278153

http://cgi.ebay.com/ebaymotors/Waco-...QQcmdZViewItem
That's my kind of scale flying, shame really.



WACO Brotherhood No. 14.

old git - - - - - - aka John L.
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Old 07-15-2007, 03:31 PM
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OOps[:@][:@]
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