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WACO YMF

Old 11-26-2012, 07:49 PM
  #15676
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Making the windshield Frame, Installment #2.

As I said in my previous post, Idid not like my first attempt at making a fiberglass windshield frame. The biggest problem I think was Iwas using a cloth that was too heavy and it would not lay flush with the surface at the corners. The other problem was using frisket film as a release agent for the windshield. That in itself was not an issue, it did work as intended, but Ididn't have the frame stuck down to the airframe well enough to get good sharp corners at the bottom edges. Ihad left extra frisket film at the edges hoping it would stick to the film on the fuselage and it didn't.

My second layup was done a little differently. After covering the fuselage with plastic film I taped the windshield to it along all of the edges that touched the fuselage with a clear tape. Ithen applied two coats of PVAmold release film to all surfaces that would possibly see resin. I'm using Z-Poxy finishing Resin for the layup. This worked very well. I used a much lighter glass cloth, I'm guessing it was about one ounce per yard, and the weave allowed it to mold to the surface quite well. I cut it into strips about an inch wide (too wide) and around five inches long. Given the thickness of the cloth, Ifigured I'd need about 8 to 10 pieces for the required thickness.

As you can see, the layup went very well. Ikept the resin to a minumum by using each layer to soak up the excess resin from the previous coat until Ihad applied what Ithought was enough cloth. Ilearned another lesson here also. You will need to try to avoid letting the corners get too thick by letting the strips lay accross each other at the ends. It will be a little messy, but try to make each strip just long enough to lay alongside of the pieces joining it in the corners. You can overlap the end pieces similar to the way bricks come together at corners, tying the corners together. This will prevent the neccessity of having to sand down the overly thick corners where your cloth doubled up.

I think you can see what I'm talking about in the photos below Sorry about the two similar photos).


This layup went very well, and after a lot of sanding to eliminate the heavy corners, I have something Imay be able to use.

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Old 11-27-2012, 02:59 AM
  #15677
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Default RE: WACO YMF

I was going to do my windshield frame like I did the last one from Brass and balsa, but I've decided to do this one from aluminum angle and sheet. I'll see how well it goes.

Bill, Waco Brother #1
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Old 11-27-2012, 08:31 AM
  #15678
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Windshield Frame Installment 3

This is the current status of my second frame. At this time, I'm pretty happy with the results, but who knows. The third time is the charm, so they say. I may do another one before Ifinish the project.

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Old 11-27-2012, 08:58 AM
  #15679
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Default RE: WACO YMF

Here's what I've been doing with my spare time lately........

Bill, Waco Brother #1
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Old 11-27-2012, 08:59 AM
  #15680
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Default RE: WACO YMF

and a couple more of them. I know it's not a Waco, but........

Bill, Waco Brother #1
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Old 11-27-2012, 09:00 AM
  #15681
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Quote:
ORIGINAL: Stickbuilder

Here's what I've been doing with my spare time lately........

Bill, Waco Brother #1


Hey! I recognize that plane and that workshop!

Have you taken a look at my Stearman ride video? Here is a link to the YouTube video. http://youtu.be/Eq8rFSJ_OCQ

Jaybird
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Old 11-27-2012, 09:10 AM
  #15682
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Quote:
ORIGINAL: Jaybird





Hey! I recognize that plane and that workshop!

Have you taken a look at my Stearman ride video? Here is a link to the YouTube video. http://youtu.be/Eq8rFSJ_OCQ

Jaybird
Yep, you lucky devil...

Bill, Waco Brother #1
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Old 11-27-2012, 09:11 AM
  #15683
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Hi Bill

Thanks for the compliment. Yes the straps are for two six volt Nicad packs. They will both feed into a Smartfly EQ10 to give me power redundancy. See the pic below.

The smaller unit is a relay for my landing lights.

All my electronics and servos are on removable trays, and are connected with colour coded wires. See coloured shrink sleeving.
This way I can remove the trays to gain access to the inside the plane.

Regards

ERROL #204
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Old 11-27-2012, 11:21 AM
  #15684
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Bill,
The Ryan’s looking good! Sorry about loosing you on the phone today my phone just went dead. I got the dle 30 from ups today so I’ll look at the weight and fit for the cub.

Jay,
That looked like to much fun. I thought about taking that rid many times. I took my granddaughter up in the other biplane about 10 years ago that was fun.
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Old 11-27-2012, 11:25 AM
  #15685
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Dan,

It IS great fun. I would recommend it to anyone whether they have any flying experience or not. Rob will have you do however much of the flying you want to do. This was my third flight with him over the last 6 years. I make it part of my scedule whenever we visit that area.

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Old 11-27-2012, 11:29 AM
  #15686
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Hello,

Working with the model continues. I almost finished all the surface of the model, which I will do later imitation screws and sheet cladding...

Albert
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Old 11-27-2012, 12:51 PM
  #15687
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Bill, are you using Byron's foam stab and fin or did you build those up also? I have the Staggerwing that needs a set of wings framed up.
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Old 11-27-2012, 01:15 PM
  #15688
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Default RE: WACO YMF

Jim, I used the stab and fin that came with the Byron kit. If I had realized earlier on that I was going to frame up the wings, I'd have framed up the tail group as well. Unlike the wings, they seem to be okay. Get after framing up your staggerwing wings.

Bill, Waco Brother #1
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Old 11-28-2012, 02:52 AM
  #15689
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Got to looking at the build last night. I may just cut away the tail group and scratch it out too. Don't know why, but it's kinda-sorta like looking at a mountain.............Because its there.

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Old 11-28-2012, 07:18 AM
  #15690
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Default RE: WACO YMF

Peter, I missed you then. I left frankfurt in the spring of 1968 Never revisiting. Maybe I should come back and see how things have changed. Would really be interesting thats for sure
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Old 11-28-2012, 08:12 AM
  #15691
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Bill, you are correct I need to get after framing up those wings, but after all those months of work were lost on the maiden, it will have to go to the back of the queue. After all I still have the WACO to complete.
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Old 11-28-2012, 10:15 AM
  #15692
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Hi Bob,

it changed a lot. New hangars on the West end have been built and offices for all the people involved in air fright. The air base is now used by civilian aircraft and their are two new landing fields on at the west end of the old runways which is only for take offs and one in the north closer to the city across the autobahn also only for landing. They have bridges for the aircraft to cross the autobahn to get to the terminals. Term A, B and C have been built larger and their is a new term 2 in the east of term A,B,C. So you would be astonished how much has changed. You should visit Germany during spring or summer and join the one or other model event or fairy. The Dortmund show which is in April is far bigger then Toledo or New York model show which I both visited this year.

Peter
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Old 11-28-2012, 11:09 AM
  #15693
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I was near Stuttgart in a small town named Swabish Gmund ( probably wrong spelling ) in 1969-70 with the U.S. Army with a Pershing missile battallion. Beautifull country side.
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Old 11-28-2012, 12:59 PM
  #15694
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Peter, I looked at google earth.. Yes LOTS have changed!.. Maybe some day I'll get back there
If I ever do.. I'll be sure to look you up
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Old 11-28-2012, 07:41 PM
  #15695
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Quote:
ORIGINAL: Dash7ATP

Windshield Frame Installment 3

This is the current status of my second frame. At this time, I'm pretty happy with the results, but who knows. The third time is the charm, so they say. I may do another one before I finish the project.

I think it looks great! don't touch it. I will be doing/using the same method on my SRE windshield

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Old 11-28-2012, 07:43 PM
  #15696
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Quote:
ORIGINAL: Dash7ATP

Windshield Frame Installment 3

This is the current status of my second frame. At this time, I'm pretty happy with the results, but who knows. The third time is the charm, so they say. I may do another one before I finish the project.

I think it looks great! don't touch it, I will be doing/using the same method on my SRE windshield
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Old 11-28-2012, 10:49 PM
  #15697
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Default RE: WACO YMF

Willey,

The pictures of the full size windshields looks like the were taken of N32158, a UPF owned by John Gerth. Note the height difference between the shorter front windshield and taller rear windshield. The 2 UMF/YMFs (NC 14031 and NC 14081) I am familiar with both have round windshields of different designs up front.

P1 - UPF 32158
P2 - UPF 32158 Closer view
P3 - Y/UMF NC 14031 front (1934 Waco) Plain Pexi-glass
P4 - YMF NC 14081 (1987 Waco Classic) Foldable and Removable
P5 - YMF NC 14081 (1987 Waco Classic) Foldable and Removable
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Old 11-30-2012, 03:19 PM
  #15698
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Default RE: WACO YMF

Hello all you Waco fans. I have been hanging around this site getting some great scale tips. I am building a 1/5 scale Pica Waco and have just finished the covering using Solartex. I went for the 26CC conversion and it looks great on the small standoffs I made. I have no idea what the finished weight will be as I am painting it bright yellow with black trim. I am a bit concerned about the incidences. When I check it out, I get zero, zero and zero on the wings and tail. I can always change the wings to positive incidences but I have had bi-planes in the past that flew well with everything at zero. Has anyone out there flown this model with a zero setup on wings and horizontal stab?

THANKS

Karl
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Old 11-30-2012, 03:24 PM
  #15699
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Does any one know if the house of moy web site is working ? I can't get on it from my computer.
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Old 12-01-2012, 02:41 AM
  #15700
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Quote:
ORIGINAL: Karleyman

Hello all you Waco fans. I have been hanging around this site getting some great scale tips. I am building a 1/5 scale Pica Waco and have just finished the covering using Solartex. I went for the 26CC conversion and it looks great on the small standoffs I made. I have no idea what the finished weight will be as I am painting it bright yellow with black trim. I am a bit concerned about the incidences. When I check it out, I get zero, zero and zero on the wings and tail. I can always change the wings to positive incidences but I have had bi-planes in the past that flew well with everything at zero. Has anyone out there flown this model with a zero setup on wings and horizontal stab?

THANKS

Karl
Karl,

You can easily fly the model with zero and zero on the wings. You will probably find it just a tad difficult on landing. I normally set the bottom wing at zero and the top wing at -1degree, or one degree negative.

As to the horizontal stabilizer; you probably won't like it at zero. You will use up more that your available trim to make the model fly correctly. Most of those who successfully fly this model end up somewhere around 2.5 degrees of positive incidence (the leading edge of the horizontal stab is higher than the trailing edge). I have gone so far as to make one adjustable in flight, and Dan has a ground adjustable stab. Hate to ask you to do this, but you would be better off to remove the stab and reset it before you advance further.

Bill, Waco Brother #1
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