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RE: WACO YMF - 3/30/2012 7:07 PM   
Jaybird


 

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From: Hallowell, ME, USA
Status: offline 		I just picked up a new Saito 125 (at last year's price) from the LHS. The inside of the cowl measures 8" roughly at the rear opening and the 125 is just over 4" from the mounting lugs to the top of the rocker covers. I'll probably still cut clearance holes to help with cooling but try to keep them small. I was going to do the OS 95 two-stroke but knew I'd be happier with a four stroke sound for $50 more.

I'd like to do a representative set of flying wires and an extendable set of aileron pushrods. For the flying wires I need to locate and design the lower mounting points above the landing gear and make it so I can dissassemble it. I've used pull-pull clevis sets on several planes with success. The aileron pushrods will have to have a free floating end since all four ailerons are powered and I don't want them binding or working against each other. it would be great to reproduce the corrugated surface on the ailerons ans that is a distinct characteristic of the WACO line. They are already hinged to the wing panels so rework will require some surgery.

I've had my Hanger 9 ARF Cub for 18 years or so and despite several hard crashes it's on floats and going strong with it's original Saito 56. I'm hoping the WACO will have a similar life span.

They all have an expiration date!

Jaybird



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RE: WACO YMF - 3/30/2012 7:27 PM   
skipb


 

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Status: offline 		Yes it does fit w/o cutting the cowl.

Skipb

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RE: WACO YMF - 3/30/2012 7:33 PM   
Jaybird


 

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Status: offline 		Cool! Do you have yours mounted vertically or horizontally?

Jaybird

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RE: WACO YMF - 3/30/2012 8:58 PM   
skipb


 

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Status: offline 		The engine is mounted horizontally with carb on the bottom.

Skipb

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RE: WACO YMF - 3/30/2012 9:34 PM   
Jaybird


 

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Status: offline 		Sorry Skip, I thought you were talking about the single cylinder 125 not the twin 160. I couldn't figure out how it could be horizontal with carb down on a single and you probably couldn't figure why I would ask if a twin would be mounted vertically. Ooops!

I think the single 125 will require some cowl cutting, darn.

Jaybird

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RE: WACO YMF - 3/30/2012 9:44 PM   
Dash7ATP



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quote:

ORIGINAL: Stickbuilder

............................................>>> I still don't know why you guys are not buying the OS 160 twin for them. It is the perfect engine for the fifth scale version.

Bill, Waco Brother #1



I'd love to put a 1.60 in mine.  The reason?  $$$$$$$$$   Like about $940.00 . 

Joe


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RE: WACO YMF - 3/31/2012 4:19 AM   
cannonball200



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From: Oklahoma City, OK, USA
Status: offline 		I installed a Dle 20 in my GP Waco Arf. It has plenty of power for the plane and fits in nicely. I bought a Jtec special made muffler for mine also.
Thanks,
Eddie

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RE: WACO YMF - 3/31/2012 1:55 PM   
Stickbuilder



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Status: offline 		It is a bit pricey, but it is very much worth it. You can pay for it in fuel savings alone, since it requires zero Nitro Methane. Just brew up some alky and Castor.

Bill, Waco Brother #1

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Its easy, just glue all the pieces together, and sand off everything that doesnt look like an airplane.

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RE: WACO YMF - 3/31/2012 2:51 PM   
Dash7ATP



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quote:

ORIGINAL: Stickbuilder

It is a bit pricey, but it is very much worth it. You can pay for it in fuel savings alone, since it requires zero Nitro Methane. Just brew up some alky and Castor.

Bill, Waco Brother #1


Right! That would be three car payments!  I'll let you convience my wife that I need a 1.60! 

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RE: WACO YMF - 3/31/2012 3:21 PM   
RBACONS


 

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Status: offline 		I mounted an OS 1.60 twin in mine. Fits perfectly, is a very good match power-wise, and sounds great too. There's about 1/2" clearance between the cylinder heads and the side of the cowl. I only had to cut about a 1/2" notch out of the center rear trailing edge of the cowl to let my 2 brass tube exhaust extenders slip out below the cowl bowl. Because the 1.60 has a very short integral motor mount, I did have to build a ply box to push the engine forward an inch or so. I also built a semi (very semi) scale tail wheel from brass and a Dubro 1 1/2" tail wheel. If you plan to mount an after market tail wheel, be aware that the balsa towards the tail post is not very thick or hard. My tail wheel screws pulled loose after a dozen flights or so. I ended up cuttting out a 2 inch length of balsa out to the side stringers, epoxied a 1/8 ply plate to the stringers and then filled the hole with fairly hard balsa.

Also, a little cockpit coaming really dresses up the cockpit openings.



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RE: WACO YMF - 3/31/2012 6:35 PM   
Stickbuilder



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Status: offline 		for exhaust extensions, I use chrome water supply tubing (available at Lowe's) and cut them to length. They are very bendable without kinking too. They look great. As you can see, the engine fits within the cowl with no cutting.


Bill Waco Brother #1

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Its easy, just glue all the pieces together, and sand off everything that doesnt look like an airplane.

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RE: WACO YMF - 4/2/2012 12:52 AM   
WacoNut



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Status: online 		Bill how are the 27% plans coming?
Later!!
Anthony

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RE: WACO YMF - 4/2/2012 3:56 PM   
Jaybird


 

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Status: offline 		I am very interested in how the tail wheel assemblies have been hooked up internally inside the ARF version. I can't figure out how to activate the tail wheel and get the required assembly up inside it. If anyone would like to share those details I'd appreciate it.

I had planned to add a basswood block in the tail to mount the Du-Bro bracket to and then use the included springs and control horn to activate it, but the assembly will not look very accurate.

I believe someone in this thread kept the ARF top wing a three piece unit and attached the center section to the cabanes and the outer panels removable. I can't find that thread again and they also didn't explain how they did it when I read it before. Any further details on that would be helpful too.

I have pulled everything out of the box and organized the packages and hardware and I'm close to starting (after the ironing of course) but I found I was missing the landing gear center fairing block. I dug through all the boxes and packaging and just couldn't find it. I called Great Planes on Saturday and their service department said they would get one in the mail to me which I thought was great service. On Sunday I was moving the fuselage around on my workbench when I noticed a block with double sided tape in the landing gear mounting area still stuck to it. I started looking around the fuselage again and gave a good shake and heard a rattle in the tail. Looking in I could see something lodged way in the back where the elevator mounts stuck behind the pushrod tubes and bulkheads. After a bit more shaking and moving it around it finally came loose and it was the missing block! I've since contacted Great Planes and told them I found it and to thank them for their assistance.

I have a few more small items to pick up this week and I should get it started for real next weekend.

Jaybird


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RE: WACO YMF - 4/3/2012 3:17 PM   
Dash7ATP



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Status: offline 		Good morning to the Brotherhood!

Well, I have a 1.60 Gemini twin on it's way to me.  I got real lucky and won it on EBay over the weekend for about half price, and it's NIB. I still don't believe it!
I have a  few questions related to mounting and using this engine.

1.  How does it respond to ISO mounts? These are the rubber shock mounts that help deaden the vibration transfer to the fuselage. I have a YS 1.2 mounted that way and it really helps keep the noise down. It has been problem free.

2. This engine does not come with a muffler. I'm guessing it tends to be a little loud. I'm considering making up a small canaster muffler to attach to the fire wall beneath the engine. Two inlets and two outlets in the scale location. 

3. Since this engine is usually mounted with the carb on the bottom, how do you keep it from flooding out after the tank is filled ( which almost has to be mounted higher than the carb inlet). It would be difficult to clamp off the fuel line once a dummy engine is in place. Would mounting with the carb on top cauise any issues?

4. Any thought on installing an  Onboard Glow driver?

Suggestions and comments welcome.

Thanks,

Joe

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RE: WACO YMF - 4/3/2012 3:39 PM   
LesUyeda



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Status: offline 		"How does it respond to ISO mounts? These are the rubber shock mounts that help deaden the vibration transfer to the fuselage.

What vibration. There isn't any.

"This engine does not come with a muffler. I'm guessing it tends to be a little loud. "

Not true. Sounds so good, I used to want to walk along under mine just to listen:-))))))))))

#3. Had mine in a 1/4 Spacewalker, and did not take any particular precautions, and had no problems.

Les

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RE: WACO YMF - 4/3/2012 4:34 PM   
Dash7ATP



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quote:

ORIGINAL: LesUyeda

"How does it respond to ISO mounts? These are the rubber shock mounts that help deaden the vibration transfer to the fuselage.

What vibration. There isn't any.

"This engine does not come with a muffler. I'm guessing it tends to be a little loud. "

Not true. Sounds so good, I used to want to walk along under mine just to listen:-))))))))))

#3. Had mine in a 1/4 Spacewalker, and did not take any particular precautions, and had no problems.

Les


Thanks for your reply. I can't wait to get it and do some break-in runs to check it out. 

I haven't started my WACO yet, as I'm still tring to re-design the wing tips for a more scale like appearance.  I'll give a report when I have something to show.

Joe

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RE: WACO YMF - 4/3/2012 5:28 PM   
Stickbuilder



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Status: offline 		Nope, it does not vibrate at all. Make sure that you balance your prop. I use an onboard glow driver on mine (Maxx Products). You can see the exhaust extensions that I made from water supply tubing. It purrs. Not noisy at all. Mount it solid. You don't want any vibration mounts on this engine. As to the fuel requirements, mine have never liked anything above 5% nitro. And they run very well on FAI fuel.

Bill, Waco Brother #1

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Its easy, just glue all the pieces together, and sand off everything that doesnt look like an airplane.

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RE: WACO YMF - 4/3/2012 5:56 PM   
Dash7ATP



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Status: offline 		One more question,and I think I know the answer.  Do both cylinders fire at the same time? Or are the cycles altermating?  My guess is they fire at the same time.

Joe


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RE: WACO YMF - 4/3/2012 7:54 PM   
skipb


 

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Status: offline 		They fire alternately, you will feel that first time you rotate the engine by hand.

Skipb

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RE: WACO YMF - 4/3/2012 8:51 PM   
Dash7ATP



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quote:

ORIGINAL: skipb

They fire alternately, you will feel that first time you rotate the engine by hand.

Skipb

 Very interesting.

Thanks.

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RE: WACO YMF - 4/4/2012 3:12 AM   
biplano


 

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Status: offline 		Dear Brothers, after almost 2 years my 1/5 Pica Waco is now ready for pait and covering. I would like to replicate the blue and cream color scheme of the Pica Kit to take advantage of the supplied decals but I am experiencieng some trouble in finding color pictures that would tell me the right tone of blue. The kit box besides being obviously unrealiable, is so faded away I can't even tell that the airplane in picture was once blue...
Any one out there who has solve this blue color problem previously?

Thanks,

Biplano

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RE: WACO YMF - 4/4/2012 4:32 AM   
Dash7ATP



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ORIGINAL: biplano

Dear Brothers, after almost 2 years my 1/5 Pica Waco is now ready for pait and covering. I would like to replicate the blue and cream color scheme of the Pica Kit to take advantage of the supplied decals but I am experiencieng some trouble in finding color pictures that would tell me the right tone of blue. The kit box besides being obviously unrealiable, is so faded away I can't even tell that the airplane in picture was once blue...
Any one out there who has solve this blue color problem previously?

Thanks,

Biplano


What is the N Number of the plane you want to replicate?\



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RE: WACO YMF - 4/4/2012 8:56 AM   
skylarkmk1



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Status: online 		Biplano,

Contact Alan Jackson [hankjackson53@yahoo.com] as he is the current owner of NC 14031, the Waco YMF that is the subject of Pica's earlier Blue plane. It is also the subject of the Paul Matt drawings that you can study for the positioning of the cream boarders and such. Alan has a CD for sale of pictures of NC 14031 taken in the last couple of years. It was restored without the personal markings of Mr Patterson (the original owner), the white eagle , or triangle fin marking. The cockpit combing was not installed on either cockpit during restoration. The cowl is a Jacobs Cowl (evenly spaced blisters) even though it is powered by a Continental engine.

The colours according to Alan are "The original factory build sheet states Berry Bros. Insignia Blue.. Bought Sig Insignia blue that wasn't within a row of trees to the real color (way too red and black). Have a friend with an original Berry Brothers color card, did our best to match that. SIG insignia blue mixed with Diana Cream did a good job; may have been 3 parts blue and one part cream. Somewhere I have that info, but can't lay my fingers on it at the moment).

Ray Brandly, National Waco Club president and holder of the Waco factory archives at the time, provided info the trim stripe was Berry Red with cream trim. This was stated below a factory picture of the airplane and is the only documentation for that combination we have seen (Tennessee Red a good match).

One deviation we made is that the interior was two different shades of red fabricoid. We used blue leather, which we purchased before we had the build sheet. Paul Matt indicated the color of the interior as blue leather, which adds to a number of errors in his drawings and data, including reference to Navy blue vs. insignia blue.

The red pinstripe is on the inside of the cream wing trim and around the numbers. Cream edge only at the outside perimeter of the wings."

I believe the Dana Cream is a good match for the cream colour on NC 14031. If you have more questions about NC14031 ask me - skylarkmk1 or Alan.

< Message edited by skylarkmk1 -- 4/4/2012 3:19 PM >

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RE: WACO YMF - 4/4/2012 12:55 PM   
Jaybird


 

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Status: offline 		I finally got to spend some quality time in the hanger and started with the engine mounting. I used the front plate of the cowl mounting assembly to measure the distance from the firewall to the thrust plate. It looks like the Saito 125 will just fit inside the cowl without a cutout for the rocker covers. I'm still working on an exhaust system to keep it inside the cowl and exit the bottom.

Jaybird

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< Message edited by Jaybird -- 4/4/2012 2:11 PM >

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RE: WACO YMF - 4/4/2012 3:25 PM   
jn4dflyer


 

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Status: offline 		I purchased the CD from Hank.  It has a complete walk around with alot of closeups to show detail.  Well worth the few dollars he wants for it.

Larry
WB 183


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