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WACO YMF

Old 03-17-2024, 10:34 PM
  #19476  
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Originally Posted by Flyingbaseball
Alrighty folks getting ready to build the fuselage and I understand just about everything except these F22 wing saddle parts. mine are 5/32 stiff balsa and according to the plans and manual Iíve got the shape them to the wing airfoil. How the heck am I supposed to bend 5/32 sheets to the shape of the airfoil Iím familiar with the hot water trick but bending 5/32 parts that sharp especially the LE area will snap the wood I must be missing something any input greatly appreciated.
I'm building this kit now, and am looking at the same problem. My suspicion is that this is an error in the kit: why would that piece be supplied in three parts if it's supposed to have lengthwise grain? Usually, when a part is made in pieces like this, it's because it needs to have the grain crosswise, and the balsa sheets aren't wide enough to do the part in one piece. I think these bits were drawn like this with the intention of laying them out going across a sheet, and then they were accidentally put in lengthwise when the layout of the parts on the balsa was done.
Old 03-23-2024, 05:23 AM
  #19477  
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Originally Posted by tih
I'm building this kit now, and am looking at the same problem. My suspicion is that this is an error in the kit: why would that piece be supplied in three parts if it's supposed to have lengthwise grain? Usually, when a part is made in pieces like this, it's because it needs to have the grain crosswise, and the balsa sheets aren't wide enough to do the part in one piece. I think these bits were drawn like this with the intention of laying them out going across a sheet, and then they were accidentally put in lengthwise when the layout of the parts on the balsa was done.
yea i suspect that too I ended up making new ones with running the grain the opposite direction and that worked great.
Old 04-08-2024, 12:05 PM
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Hi Guys,

I picked up what I thought was going to be a great deal on the Pica 1/5 YMF-3 kit today.
I don't think the kit is complete, no ribs, no plans/instructions and some sheeting.
Does not mean it's not doable as I have been building for over 50 years and have scratch build many models.
I could use some help in identifying the wood in the kit though.
Right now there are spars and various other sized strip wood that I have no way of knowing whats right.
For instance, the rear and LE stip wood in this kit is 5/16x5/8x30" spruce. is this correct?

Any input would be great.
Getting plans is not a problem.
Old 04-08-2024, 05:57 PM
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Originally Posted by summerwind
Hi Guys,

I picked up what I thought was going to be a great deal on the Pica 1/5 YMF-3 kit today.
I don't think the kit is complete, no ribs, no plans/instructions and some sheeting.
Does not mean it's not doable as I have been building for over 50 years and have scratch build many models.
I could use some help in identifying the wood in the kit though.
Right now there are spars and various other sized strip wood that I have no way of knowing whats right.
For instance, the rear and LE stip wood in this kit is 5/16x5/8x30" spruce. is this correct?

Any input would be great.
Getting plans is not a problem.
summerwind you can still get the plans and temples for the 1/5 scale Waco from the AMA plans service. You must ask for the temples when ordering them. I think I have the instruction manual in pdf form I'll try to post.

Last edited by mrdhud; 04-08-2024 at 06:04 PM.
Old 04-08-2024, 06:03 PM
  #19480  
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manual
Attached Files
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Old 04-09-2024, 10:18 AM
  #19481  
 
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Originally Posted by mrdhud
summerwind you can still get the plans and temples for the 1/5 scale Waco from the AMA plans service. You must ask for the temples when ordering them. I think I have the instruction manual in pdf form I'll try to post.
Thank you so much for the info and the manual.
I ordered the plans and templates.

The more I get into this bird the more enthused I am getting.
I only paid 40 bones for it.
All that's missing is the wing ribs......all else is still there. Even the mylar stickers.
Old 04-10-2024, 03:08 PM
  #19482  
 
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Originally Posted by summerwind
Thank you so much for the info and the manual.
I ordered the plans and templates.

The more I get into this bird the more enthused I am getting.
I only paid 40 bones for it.
All that's missing is the wing ribs......all else is still there. Even the mylar stickers.
Sounds like you may have stumbled across a decent deal after all...
Good luck on the progress
Old 04-10-2024, 03:12 PM
  #19483  
 
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Originally Posted by mrdhud
summerwind you can still get the plans and temples for the 1/5 scale Waco from the AMA plans service. You must ask for the temples when ordering them. I think I have the instruction manual in pdf form I'll try to post.
Shoot Dan,
I had forgot Bill made the templates available to the AMA plans service... that was a couple days ago.
Is your WACO still flying?
Old 04-10-2024, 05:39 PM
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Default wood selection

I was going to build my Proctor Nieuport 28 next but this Oldie is just begging to be built.
Obviously someone had started to build it and then gave up. The ribs are easy to reproduce and the rest of the model is in the box.
The only thing I could use help with at this point is the wood for the wing spars.
The plans show the proper size, but no mention of what is used.
In this kit is lot of 5/16x5/8"x30" hardwood that has spruce like grain, but it's not actually spruce. Looks more like hemlock. it's also heavier than the spruce I'm used to.
There is not material list to tell me what is used for the spars.

Can anyone that has this kit let me know what was supplied?

thx
Mike
Old 05-16-2024, 06:39 AM
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Such a long and interesting thread. A lot of valuable info.

For my Pica 1/5 scale I have acquired a new OS 1.60 twin, Cowl and wheel pants from fibre tech, and have all the parts that were missing cut now.
Will laminated the rear spar with 1/16" basswood, and will flute the 5/16x5/16" basswood front spars to lighten them. Balsa would probably do, but a little more strength won't hurt. Being a Free Flight competitor since the 60's has always taught us to strengthen, but not overdo anything.
Going to keep this model as light as possible with the exception of covering. No plastic film. Koverall and dope.
Looks like a fun to fly plane, and thanks to all that have posted pictures and ideas have made this an easy build.
Old 05-16-2024, 07:47 AM
  #19486  
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I had a Saito 125 in my Pica 1/5 and it flew beautifully. Not sure where in this thread may have posted it, but here is the video of my maiden.again:


For the equivalent G/P version I too bolted on a Gemini 160 twin. Far too fast even at partial throttle with an 18/8 prop so before next flight intended to try an 18/6.

Due to the carb location and lack of pressure feed on the Gemini, I had to mod the structure to drop the tank as low as possible to reduce flooding and mixture change as fuel was burned off. You may have to do the same as I cannot remember now what the inside of the Pica looked like, but it should be a lot easier during construction than to an ARF.

I decided to pull the Keleo exhaust from my Gemini to fit the cowl and faux radial better. Will likely sell it if interested.
Old 05-16-2024, 09:43 AM
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Default Keleo/Gemini

Originally Posted by Cougar429
...
I decided to pull the Keleo exhaust from my Gemini to fit the cowl and faux radial better. Will likely sell it if interested.
Pics of the Keleo and price? May be interested as I have the Gemini for future use...TIA

Have a Blessed Day
George

Last edited by georgewaldrop; 05-16-2024 at 09:51 AM. Reason: Spelling
Old 05-16-2024, 11:51 AM
  #19488  
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For some reason cannot find link to add pics to these posts other than a box marked "Current Attachments" with the following:

Valid file extensions: acf bmp doc gif jpe jpeg jpg pdf png psd spm txt zip.

It won't let me do anything within that area.

Would ask $175 + shipping.

Best send me a PM with your contact info to discuss further.

Last edited by Cougar429; 05-16-2024 at 11:55 AM.
Old 05-16-2024, 02:40 PM
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Originally Posted by Cougar429
I had a Saito 125 in my Pica 1/5 and it flew beautifully. Not sure where in this thread may have posted it, but here is the video of my maiden.again:

https://www.youtube.com/watch?v=TwWk-8mydRk&t=9s

For the equivalent G/P version I too bolted on a Gemini 160 twin. Far too fast even at partial throttle with an 18/8 prop so before next flight intended to try an 18/6.

Due to the carb location and lack of pressure feed on the Gemini, I had to mod the structure to drop the tank as low as possible to reduce flooding and mixture change as fuel was burned off. You may have to do the same as I cannot remember now what the inside of the Pica looked like, but it should be a lot easier during construction than to an ARF.

I decided to pull the Keleo exhaust from my Gemini to fit the cowl and faux radial better. Will likely sell it if interested.
Thx for the reply
I know what you mean about the tank location in the GP arf's.
I used a 1.60 in a GP Super Stearman. Great airplane, but modding the fuse to lower the tank was a royal PIA.
Once done though it ran and flew flawless.

You're right about the Waco kit version though.
Much easier to get the tank down almost where it should be.
Old 05-16-2024, 02:43 PM
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Cougar429

Thx for the video.............Very nice
Looks like the flyer had some skills )

Beautiful bird
Do you remember the wieght?
Old 05-20-2024, 03:43 AM
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I believe aboot 12 1/2 lbs dry. I had a 16 oz tank and since most was at half throttle would land at my preset 9 minutes with half a tank remaining. Due to this I would recommend dropping to 12 oz in a similar situation, but no idea of your flying style or duration. Mine was specifically to look as if a pilot aboard so no shock waves, unlimited vertical or prop hang. Have other craft for that.

My pilot even had a silk scarf!

ps. Can someone PLEASE tell me why I cannot see the option to upload pics? I have a "Current Attachments" under the text box, but nothing happens when try to add info there.

Also, no PM regarding the Keleo yet.
Old 05-21-2024, 02:01 PM
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Originally Posted by Cougar429
I believe aboot 12 1/2 lbs dry. I had a 16 oz tank and since most was at half throttle would land at my preset 9 minutes with half a tank remaining. Due to this I would recommend dropping to 12 oz in a similar situation, but no idea of your flying style or duration. Mine was specifically to look as if a pilot aboard so no shock waves, unlimited vertical or prop hang. Have other craft for that.

My pilot even had a silk scarf!

ps. Can someone PLEASE tell me why I cannot see the option to upload pics? I have a "Current Attachments" under the text box, but nothing happens when try to add info there.

Also, no PM regarding the Keleo yet.
Cougar,
If you are using Firefox for a browser, that is most likely the culprit of not being able to access the rest of the tool bar including uploading pictures.
After years of being a loyal Firefox user, I have gone back to Chrome

If that is not your case, others have suggested clearing your browser cache to allow it to reload?

Last edited by RICKSTUBBZ; 05-21-2024 at 02:04 PM.

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