RE: GP Waco?
 

Look's like it's the end of this thread until this plane is shipped out to us customers. Waiting....waiting.......waiting....... MM

RE: GP Waco?
 

You could be building, building, building if you had ordered the AMA plans and our templates.

Bill, Waco Brother #1

RE: GP Waco?
 

<Chuckle>

RE: GP Waco?
 

Yo guys, I am building. Nearing completion of an old Aerodrome Models kit Stinson Voyager 108-2. 74" wingspan. I'll post a photo tonight. MM

RE: GP Waco?
 

Like Bill says, you could be building.

To install slave rods on a 4 servo aileron ship, make your rods slip by having a tube in a tube. Fix one end to lets say the lower aileron with a 1/8” tube and fix the other end to the upper aileron with a 5/32” tube slipped over the 1/8” tube. You will want one of the tubes to be non-metallic to prevent metal-to-metal interference and you will need the slip to be very free sliding to prevent binding and cause additional servo loads.

The pictures show the how the brackets are reversed on the full size to prevent binding and provide some differential.

RE: GP Waco?
 

This winter project is just about done. Now I'm just waiting for the WACO. MM

RE: GP Waco?
 

That workshop is WAY too clean!

RE: GP Waco?
 

Mike, can't help that. I'm retired US Air Force. It has to be very clean/organized...........:D MM

RE: GP Waco?
 

I went in the opposite direction. In the Air Force I had to keep everything so clean that now I don't clean anything anymore :D

RE: GP Waco?
 

Well I am a Tsgt in an Egress shop and at work I have to keep everything clean and organized but at home I can "rebel" a bit! LOL I am just waiting on the Waco to come out so I can get started. Have all the pieces now just require the plane!

Would like some input though, I am going the dle30 route and that engine will turn a nice size prop. What pitch do you guys think would be good for scale speed on the plane? Here is a pic of my last project.

RE: GP Waco?
 

Something on the order of an 18X5 if you can find one. Nothing looks worse than a Waco or Cub keeping up with a Corsair of Mustang.

Bill, Waco Brother #1

RE: GP Waco?
 

A DLE 30 will turn a 20x6 quite well and would work nicely on the Waco bipe. It is just a tad fast on a Hangar Nine Taylorcraft with that engine/prop combination.

RE: GP Waco?
 

The DLE 30 would grossly overpower this model. The original was designed for a .60 to a .90 glow engine. A G-26 is a reasonable engine on the model, but a 30? I've flown one nicely on a Supertigre .75.

Bill, Waco Brother #1

RE: GP Waco?
 

Stickbuilder, Yes I don't want it to keep up with my corsair or Mustang! Both of those have 10pitchs. I want scale flight! As for the 30 being to much well the weight is almost 14 pounds and it being a Biplane it will have a lot of drag. I could use a G-26 but I have a dle30 here already.

RE: GP Waco?
 

Yo BountyHunter51, Here's a pic of that Stinson emblem. Maybe that will give a better perspective. Overall, not too shabby of a winter project huh ? :D Seeya, MM

RE: GP Waco?
 

I had a Saito 120 on my Pica. It was underpowered. I later put on a 182 twin and she flew much better. but it still wasn't overpowered.

RE: GP Waco?
 

Well, if this WACO is similar to the GP Super Stearman, Weight and demension, I'm using an OS-1.20. on it, but it seems to pull it around quite well, little more than scale. And this is at 4500 feet altitude with a 16/6 prop. I dunno, to each his own i guess. MM

RE: GP Waco?
 

I believe a DLE 20 with a 17x6 prop would be fine.

RE: GP Waco?
 

It appears an OS 91 FS will fit entirely inside the cowl. Any thoughts on whether the 91 would fly this 12 lb airplane in a scale manner?

RE: GP Waco?
 

If you do the math, you will see that this model has nearly 1400 square inches of wing. It does not take much power to fly one at 12 lbs with that much wing area.

Bill, Waco Brother #1

RE: GP Waco?
 

Thanks Stickbuilder, It's always good to run into a thinking man. I'm going with the 91FS.

RE: GP Waco?
 

Engine: .91 cu in (14.9 cc) 2-stroke OR 1.20 cu in (19.7 cc) 4-stroke OR 1.5 - 1.8 cu in (25 - 30 cc) gasoline engine Propeller, building & field equipment

SPECS: Length: 72" (1830mm) Wing Area: 1384 sq in (89.2 sq dm) Weight: 12.75 - 13.75 lb (5.78 - 6.23 kg) Wing Loading: 21 - 21oz/sq ft (64 - 70g/sq dm) Length: 56.5" (1435mm) Center of Gravity (CG):

While I do believe a 20cc will fly this model I don't think a 91 FS will. GP even recommends a 120FS or 25-30 cc. The advertised weight is 12.75 to 13.75 and I have not had an ARF yet that came in at the advertised weight! They all have come in a little heavier. I have an ESM Corsair that the advertised weight is 14.7 and it finished at 19 with no real extra mods. BUT like I always say, this is a hobby that we are suppose to enjoy and try new things! To each there own and we all have different ways of tackling each project! I just like to have extra power at my thumb and not need it than need it at my thumb and not have it.:D:D

RE: GP Waco?
 

I have flown the kit built fifth scale Waco YMF with a Supertigre .75 with no problem. Hell, I even flew one with a Maloney 125, and we all know how weak they were. The .91 should fly it with no problem. The problem is that we have all gotten to the point where overpowering a model is normal. It looks odd to see a Waco or Cub keeping up with a Jug or Corsair around the circuit. These planes fly on the wing, and not on the prop.

Bill, Waco Brother #1

RE: GP Waco?
 

I am flying the Aeroworks Cessna 195 with dle 30 and it has plenty of power. That has a 90" wingspan so a DLE 20 would be just be fine in the Great Planes Waco.

RE: GP Waco?
 

I agree. My 16 pound H9 clipped wing Taylorcraft flies well with a G20. There's no doubt at all the GP Waco will fly very well with the DLE 20. You won't have to hack up the cowl so much either.

RE: GP Waco?
 

FWIW, I've flown the Top Flite Cessna 182 with a Magnum 91; this plane is in the 11-12lb range. I thought it would be a dog, but the 91 flew it nicely. This Waco will be slightly heavier, with a lot more drag, so the 91 might be marginal. The Cessna would loop from level flight, but was not over-powered by any stretch. We were also flying it on 30% heli fuel, so take it for what its worth...

RE: GP Waco?
 

As I have said earlier I have a DLE 30 already NIB. After reading the comments here and some of the Waco thread over in the other forum I am debating weather to order a DLE 20 when I get this WACO. While I don't want a speed demon or a 3D bird(I have plenty of both) I also don't want a plane that can't perform basic stuff and struggles to pull any maneuvers when the nose pulls up. I still believe that this Bipe will be closer to 14lbs when done. At that a 20 is going to have a lot of weight and Drag to over come. The best course of action is going to be to get it and weight all the components and the plane without engine and then see where we are!

And hey if all else fails I could order the 20 and if it works are doesn't I will one of the engines that will need a plane!! How could the wifey let an engine sit unused!!:D:D

RE: GP Waco?
 

Guys,care if I jump in? I am wanting one of these planes and have read this entire thread. I think the engine issue is also one of what sound you want along with cleanup. I love the fourstroke sound but also the price of gasoline compared to glow fuel and the lack of glowfuel on my plane. I believe if I went to gas I would choose a G26. Seems like a good compromise between a DL30 and DL20.

RE: GP Waco?
 

Not too mention, unless you are using a retract servo:D for throttle you can always opt to fly it at less than WOT. If it is anything like the Super Stearman you will need weight up front anyways.

RE: GP Waco?
 

Actually, the most perfect engine for the Waco is the OS 160 twin. The problem with that engine is the price. they are going for 900 bucks. With a .91 or 1.20 four stroke, you are going to need to dive to gain inertia (just like with the full scale). You wind up trading altitude for airspeed in order to do basic manuvers. But you have to do that with the full scale, or at least you had to do that with my Grandfather's YMF. The only roll was the Barrel Roll, and to loop, you had to dive (a lot). There is a lot of parasitic drag with this one, especially if you add the flying wires. I have one with the OS FT160, and another with the G-26. These are both Stickbuilt, and the one with the G-26 has been modified to the point where it is no longer the same airplane that was kitted by Pica. There is not one part that is the same as the original. Even the wing plan is scale. It is going to hit the scale at somewhere around 17 pounds (all up).

Bill, Waco Brother #1

RE: GP Waco?
 

Hmmm, I wonder if dad still has that 160 Gemini kicking around???

RE: GP Waco?
 

The twin would sound great too.

RE: GP Waco?
 

Did anyone already do the math as to whether the 160 twin fits inside the cowl?

RE: GP Waco?
 

leedees,

Go over to the WACO YMF thread in Vintage. On page one scroll down to entries 17 and 18 and check the photos. Since both the Pica and GP Waco are 1/5th Scale, the fit should be similar. The index will also take you to instalations of the G-26, Saito 120 and 170 Radial.

RE: GP Waco?
 

Thank you sir.

RE: GP Waco?
 

Does anybody plan on recovering it. What about adding some flying wires?

RE: GP Waco?
 

I have the 160 twin in my red one. There is ample room in the cowl with no interference problems at all. You can find photos on the YMF thread, pages 16, and 19. There are others scattered through the thread too.

Bill, Waco Brother #1

RE: GP Waco?
 

Looking at Tower this AM and it looks like we are going to be waiting a little longer for the WACO. The expected delivery date has been moved from mid Feb. to late Feb. I'm not being a pessimist but it usually seems like when a disributer anounces a new product with an expected delivery time, it's not uncommon for the product to arrive later than projected. I'm like you guys, I really want to get this one going, but as they say, All good things come to those who wait. (yea, I know..that was a dumb statement) Anyway, I'll be glad...when ever it arrives. Mike (ACF)

RE: GP Waco?
 

The chance of my new Waco arf arriving in February is NIL. April MAYBE. I am already resigned to the winter flying season being lost for this plane.

RE: GP Waco?
 

Our winter flying season hasn't been very good up here in St. Auggie. Either way too windy or way too cold or rain. I guessing I'll catch some flak about "winter weather" in Florida from the guys up north. Ha Ha.

Mike (ACF)