germrb

My Feedback: (3)

John,

I got them through Woodcraft. They are produced by CMT. Here's the link:

http://www.woodcraft.com/family.aspx?familyid=8311

They have some other sizes as well.

WacoNut

John,
By the looks of the package they are CMT bits, here is a link. [link]http://www.cmtrouterbits.com/catalog/cmtforst_met.htm[/link]
Anthony

RICKSTUBBZ

John, and all,
I have done business with Wood Workers Hardware.

http://wwhardware.com/index.cfm/pageid/2


Here is the page to their Forstner bits.

http://wwhardware.com/catalog.cfm/Gr...orstner%20Bits

Stickbuilder

Being in the cabinet business has given me a whole range of suppliers. I've even had to have some specialty bits manufactured and I'll tell you that for your use, you probably could not find a better supplier than the ones from CMT. You can buy some that will run a little longer, but for the price, and the amount of use that they will see, get these.

Bill, Waco Brother #1

WacoNut

Well do you think this will tear the wings off the Waco
A 3W 157cc Competetion Engine, 18.5hp It fits within the cowling with the plug caps in place.
Anthony

Big_Bird

My Feedback: (1)

Outstanding! Congratulations!

WacoNut

Time to start looking at the engine box and get this thing mounted, will be nice to see the engine hanging on the front of the Waco.
Anthony

lrayj

Hey Anthony

I will be really interested in how you do this. I have never mounted an engine this size before. I have a DA 150. So post a lot of pictures.

WacoNut

Will do,
I have to see how much time I am going to have this weekend. I have to work a full day Saturday and I am trying to get the day off on Sunday.
Anthony

trlambsr

ok Guys

Lots of thought here. by using DA and 3w's engines they are lighter then A radial. What ever you do might be changed later. Dany always used Maple to make the engine box. Lots of weight in the nose. When i did mine and the others there were weight problem when trying to stay under 55lbs. I Used custom made standoff. Made out of Iron wood. Saved over 2lbs. Most of the early kits were coming in at 61lbs. My plane was grounded for being over weight. I had to put it on a diet. That is why mine flies without wheel pants and kevlar wires. The Standoff I used are now around 5 years old and still flying.

TR

I have a DA 150 and it is a rocket ship. fly at 1/4 throttle

Big_Bird

My Feedback: (1)

I'm not sure why anyone should be afraid of the AMA Experimental Aircraft category (55# to 100#). Certain considerations need to be followed while building the plane and then an inspection is needed before a permit to fly is issued. You can then fly it anywhere you would fly a 45# big bird.

Here are the 3 items you need to look at:

http://www.modelaircraft.org/files/520-A.pdf
http://www.modelaircraft.org/files/520-B.pdf
http://www.modelaircraft.org/files/520-C.pdf

trlambsr

Ken
Read the distance from anyone else that is required. If I remember correctly it is 200 feet. All the flying fields that I have been to in my 72 years on this earth do no quaiify. AMA and other insurance is going to not pay because of this.
tr
Brotherhood # 69

WacoNut

TR,
I do not think the 200ft will be an issue where I am at. I have 2 local clubs that are out in the middle of farm country and this will not be an issue. I also think that one of the biggest clubs in the area Greater Cincinnat R/C Club (GRCC) is also acceptable to this requirement as it is a very large open facility. I do the majority of my flying at a 50 acre Sod Farm that my buddy owns 1/2 mile from my house but I will have to consider the insurance issue with a plane this large.
With that being said I am going to do my best to meet the 55lb requirement but it will not be the end of the world if I don't. It is about time the AMA looked at the rules and brought them up to date with the trend towards bigger is better. Also a 60 lb Waco is not flown the same as a 60lb Mustang for example, a big difference in the performance and dangers.
Later!!
Anthony

trlambsr

Anthony
The rule is 200 ft from any other human being. That means only one plane up and 200 ft away for the public
this is why I just added a umbrella of 2 mil to my homeowner ins. It is just a matter of time before it happens
TR

WacoNut

Bob,TR,Mitch,
I am looking at building the firewall and mounting the engine, I am going to use a 1/2 ply firewall mounted directly to the front of F49 ply ring. Can you give me a measuement from F49 to the prop hub on your engines? I will turn some aluminum stand-offs for mounting the engine. I will use some hardwood blocks to key the firewall to the fuse and screw and epoxy it into place, this should be good and strong.
I plan on setting the engine with a 0-0 thrust. The instructions show 2 deg of right thrust but I like building my planes without thrust and useing the rudder to trim for straight flight. If this is a big mistake with a plane this size please speak up.
Later!!
Anthony

trlambsr

Anthony
I am sorry my plane is in the trailer in the garage. can't get to it until it goes out in the Spring. It is still hibernating.
Here are my thoughts. This airplane has a close coupled landing gear. I did what you want to do and did not like the have to hold the Rudder all the way down the runway. The 150 and 157 Have lots of torque. The plane with no off sets will pull heavy to the left. If you miss, it will start to Jag and wing tips will hit the ground. I like to poor on the coals and gain speed all the way down the runway. Also in the begining I had overheating problems with my Da 150 so to get air out I moved the Cowl to and additional 1/2 inch clearance from the doughnut. to allow more air to escape.
Make sure the stand off are at least 1/2 or more like 3/4" in dia. Again lots of torque when you poor the coals to the engine.
Now my plane is an every day flyer not to scale. so the cowl distance did not matter. Just remember the 1/3 rule for air.
When it time to fly this bird we need to talk about it. The WACO YMF is tricky to land. It must be flown to the ground.
No three point landings unless you willing to pay for another landing gear. Ask me I went to 2 learning to land it.
Frank Knoll did not listen to me and had a hell of a time learning to land Bobs plane. The other thing is don't trust the Incidence on the stabs. Check it It must be 3 degrees + or adjustable.

tr
brotherhood #69


PS Michel could give you that.

nine o nine

My Feedback: (1)

I'm away from my shop until Monday but when able I'll measure my plane. As far as thrust adjustments though I disagree with you but in a good way . Right thrust as well as fin offset is used on full scale planes to ease the pilot workload any time the nose is raised.
The Waco's also have a ground adjustable rudder tab. Tourque, gyroscopic precession and spiraling slipstream all play a role in trying to make a U.S. plane turn left. The effects vary with different pitch and airspeeds so a compromise is made by setting the engine and fin offset for averages. Our 30 and 40 percent planes see the same problems so why not make our workloads easier too? A fullscale pilot can feel and correct for the effects but from a distance we can't see all the rudder work that needs to be used. I don't know if you have full scale experience but if you did (I'm a retired flight instructor) you'd agree with me I think. The offsets can't hurt....only help so why not use them. Anyway.....I'll measure my firewall to prop distance and get back to you. Mitch WB100

Big_Bird

My Feedback: (1)

Anthony, I've have been flying big RC models for many years and I can't stress enough how important 2 degrees of right thrust is. Trying to crank in enough right rudder during takeoff with a zero degree offset large high torque engine can be very difficult. There is a good chance you will wreck the plane. There is also the problem of setting up for a landing and at the last moment deciding to abort and go around. Low and slow with a sudden application of throttle (it should be a light application) can cause a sudden left snap. Right thrust helps a lot in this case.

Of course, if you put in 2 degrees of right thrust you will have to move the back of the engine to the left a little to make the prop come out in the center of the cowl. If you have a problem calculating this offset I will be glad to do it for you. All of my gassers have 2 degrees of right thrust.

Stickbuilder

Hmmmmmmmmm,[:-]

Bill, Waco Brother #1

WacoNut

OK I will build some right thrust into the firewall,
In the 3W manual it stresses not to try and shim the engine so I will build the thrust in the firewall. I will have to dig my table saw out tomorrow to start work on the firewall.
Later!!
Anthony

Big_Bird

My Feedback: (1)

My AMR 42% Super Decathlon came with 2 degrees designed in.

Bill, what's the Hmmmmmmmmm? Just thinking and writing it down?

Big_Bird

My Feedback: (1)

We sure had a good time today. It was roll out day for Glen's newly completed Spacewalker II. Several of us brought RC airplanes and a lot of folks attended who are EAA Chapter 34 members. We brought sack lunches and talked airplanes, full scale and RC. Here are a few photos.

The big Tigermoth is brand new and un flown. It was built by Jim who also built thw 1/2 scale Spacewalker II. My Waco and Jungmeister were there. The DC-3 belongs to Ross who is my partner in the 42% SD project.

Big_Bird

My Feedback: (1)

By the way, I didn't do anything to make the photos large. Not sure what happened. I posted as usual.

WacoNut

Nice Big_Pics
It happens to me evry now and then, I believe it is a glitch in the page poster. Looks like you guys had a good time.
Anthony

germrb

My Feedback: (3)

Anthony,

Just another opinion, but the right thrust is a good idea. It does make handling a bit easier. Its particularly good on up lines to keep the P-factor from pulling the nose to the left. As far as take off is concerned, "pouring the coals" is never a good idea until you have the tail up and running straight. The same is true at low speed. Sudden acceleration is never a great idea.

I built the offset into the engine "standoff" box that attaches to the fire wall. Its a lot easier then changing the main firewall orientation. My mounting box is about 5 inches, so its big enough to house the ignition module and choke lingage. You should offset the engine to compensate for the right thrust so that the prop hub comes out in the center of the cowl. I assume with your experience that you already figured that out for yourself.

I've been reading the comments about landing difficulties and have been wondering if we are talking about the same airplane. Yes, you have to fly it on to the ground. That's true for almost any aircraft, particularly those with high wing loads. But, this is one of the easiest airplanes to fly. True, don't try to make three point landings or you'll be in trouble. I've been there.

Bill's "Hummmmmm" is because he doesn't believe in right thrust offset. "Learn to fly!!" Master Chiefs are tough

Ken,

Fantastic pictures!! Except for the guy in the red shirt. How'd he get in there?

Got'a go the club meeting and I'm late. Later,