RE: WACO YMF  
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RE: WACO YMF - 7/11/2006 10:28:02 AM   
Stickbuilder



Posts: 5390
Joined: 11/20/2005
From: leesburg, FL, USA
Status: online 		Chris,

You have to remember, that this airplane flies on the wing, and not on the prop. I truly do not think that the SuperTigre .75 will have enough power to safely fly this model. I have flown this model with everything from a Maloney 125 gas engine to a MOKI 1.8. and several things in between. I think that with the small ST, you are going to have to add considerable nose weight, and that is not going to be your friend. I have been using the OS 160 twin for the last couple of these that I have built, and I feel that this is nearly the perfect engine for this plane. I did use the OS 120 single on one with good results. If memory serves me correctly, the ST .75 wants to swing a 14" prop, and the thrust from this size prop will be marginal at best. This airplane needs an engine that will swing at least an 18" prop. I honestly think that with the little ST, you will have a case of the tail wagging the dog. If, on the other hand, yours is the 60" version, then the ST will be very adequate for this size WACO.

Bill, AMA 4720

_____________________________

It's easy, just glue all the pieces together, and sand off everything that doesn't look like an airplane.

(in reply to chris1949)
       Post #: 26

RE: WACO YMF - 7/11/2006 1:22:30 PM   
chris1949


 

Posts: 36
Joined: 11/16/2005
From: Ravena, NY, USA
Status: offline 		Thanx for the info Bill,mine is the 60 inch size so the info you gave me is very helpful.I was a little nervous about it because power can be your best friend when you need it most.That said I hate to overpower an airplane if I dont need it.Im a firm believer in lighter flies better.This plane punches an awfully big hole in sky so I was a little concerned about the choice.The guy that gave it to me said on its first takeoff it just rolled right and it wouldnt come out of it.He seemed to think the aileron servo wasnt strong enough to move them that seems a little far fetched but I guess Im going to find out thanx Chris

(in reply to Stickbuilder)
       Post #: 27

RE: WACO YMF - 7/11/2006 1:45:45 PM   
Stickbuilder



Posts: 5390
Joined: 11/20/2005
From: leesburg, FL, USA
Status: online 		Sounds more like the servo was reversed. Be sure to always visually check for the correct deflection direction. I don't think that even a standard set of servos would have a problem controlling this plane. Is yours set up with 2 aileron servos or does it have one driving the ailerons through bellcranks? If you are only using one servo driving all the ailerons, I would use a stronger servo. Otherwise, I think that you will be okay.

Bill, AMA 4720

_____________________________

It's easy, just glue all the pieces together, and sand off everything that doesn't look like an airplane.

(in reply to chris1949)
       Post #: 28

RE: WACO YMF - 7/11/2006 2:40:01 PM   
Jim Dines


 

Posts: 1373
Joined: 2/27/2002
From: Keller, TX, USA
Status: offline
quote:

ORIGINAL: chris1949

Hi Bill Im planing to fly my repaired waco with a st 75 in your opinion is it enough for this airplane.I just painted it with a old Ford cream color and folker red with the scallop detail,what a maskers nightmare but it turned out real sharp.Everybody thats seen it really loves the color combo,even my wife the ultimate acid test Thanx Chris

Your ST 75 is more than enough to fly this plane well. I maidened this plane for a friend about 20 years ago. It had a 60 in it, plenty of go. The most "interesting" part of flying this one is getting it back on the ground. It wants to float and float. Be sure your engine idle is good and low and your prop a shallow pitch. It is truly a classic plane, I wish I had one, now.

(in reply to chris1949)
       Post #: 29

RE: WACO YMF - 7/12/2006 10:15:23 AM   
Stickbuilder



Posts: 5390
Joined: 11/20/2005
From: leesburg, FL, USA
Status: online
quote:

ORIGINAL: Jim Dines


quote:

ORIGINAL: chris1949

Hi Bill Im planing to fly my repaired waco with a st 75 in your opinion is it enough for this airplane.I just painted it with a old Ford cream color and folker red with the scallop detail,what a maskers nightmare but it turned out real sharp.Everybody thats seen it really loves the color combo,even my wife the ultimate acid test Thanx Chris

Your ST 75 is more than enough to fly this plane well. I maidened this plane for a friend about 20 years ago. It had a 60 in it, plenty of go. The most "interesting" part of flying this one is getting it back on the ground. It wants to float and float. Be sure your engine idle is good and low and your prop a shallow pitch. It is truly a classic plane, I wish I had one, now.


Why don't you build one?

Bill, AMA 4720


_____________________________

It's easy, just glue all the pieces together, and sand off everything that doesn't look like an airplane.

(in reply to Jim Dines)
       Post #: 30

RE: WACO YMF - 7/12/2006 3:49:47 PM   
Jim Dines


 

Posts: 1373
Joined: 2/27/2002
From: Keller, TX, USA
Status: offline 		I guess I'm going to need to do that.

(in reply to Stickbuilder)
       Post #: 31

RE: WACO YMF - 7/12/2006 4:42:27 PM   
Stickbuilder



Posts: 5390
Joined: 11/20/2005
From: leesburg, FL, USA
Status: online 		You can still find the kits on e-bay, ir here on RCU occasionally. Trouble is, the darn things are bringing over 300 bucks now for the 1/5 th scale kit. I have not a clue what the 60" span model goes for. Haven't seen one of them in a while now. I have managed ot squirrel several of the larger ones away, and I now have enough of them to keep me busy in case I live to be 90, or so. Guess I'm just a WACO kind of guy.

Bill, AMA 4720

_____________________________

It's easy, just glue all the pieces together, and sand off everything that doesn't look like an airplane.

(in reply to Jim Dines)
       Post #: 32

RE: WACO YMF - 7/23/2006 2:23:47 AM   
chris1949


 

Posts: 36
Joined: 11/16/2005
From: Ravena, NY, USA
Status: offline 		Hi ernst-t hate to be a pest but does it say what fuel tank to put it the waco?I have about 20 tanks and they are all either to tall or to wide its a deep opening but not tall or wide,Id like to put at least a 14oz tank in it with the st 75 thanx Chris

(in reply to Ernest-T)
       Post #: 33

RE: WACO YMF - 7/23/2006 4:40:12 AM   
Ernest-T



Posts: 169
Joined: 11/9/2003
From: Lewisville, NC, USA
Status: offline
quote:

ORIGINAL: chris1949

Hi ernst-t to be a pest but does it say what fuel tank to put it the waco?I have about 20 tanks and they are all either to tall or to wide its a deep opening but not tall or wide,Id like to put at least a 14oz tank in it with the st 75 thanx Chris


I remember that finding a fuel tank for the 1/6 scale WACO was always a difficult task. Like you mentioned, the problem is not the depth but the width and height of the opening. I took a look at my current WACO, but I cannot remember which tank I used. It looks like one of the flexible Sullivan slant-type tanks, but I suspect that it is either 10 or 12 oz. at the most. I think the larger Sullivan tanks would be too wide for the opening, and even the smaller rigid type Sullivan slant-type tanks will not work because of the small bulge of the vent space on the top will prevent the tank from going into the box. The opening is so tight that I could not use any foam insulation, but I have not had any problem with vibration of the fuel.

On the first 1/6 scale WACO I built, I remember finding a round fuel tank that fit perfectly all the way to the back of the opening, but that was nearly 20 years ago, and I can't remember the brand, and that plane was sold long ago.

You might try one of the Hayes Slimeline tanks. They seem narrower and longer than some of the others. The only other proposition is to re-design the fuel tank box to make it bigger.

Hope this helps.


_____________________________

Martin
AMA: 240487

(in reply to chris1949)
       Post #: 34

RE: WACO YMF - 7/23/2006 8:40:16 AM   
old git


 

Posts: 706
Joined: 3/10/2004
From: BelvedereKent, UNITED KINGDOM
Status: offline 		Hey stickbuilder,

It looks as if you have a lot of sanding to do before your Spitfire is finished.




old git - - - - -aka John L.

(in reply to Stickbuilder)
       Post #: 35

RE: WACO YMF - 7/23/2006 8:59:40 AM   
Stickbuilder



Posts: 5390
Joined: 11/20/2005
From: leesburg, FL, USA
Status: online
quote:

ORIGINAL: old git

Hey stickbuilder,

It looks as if you have a lot of sanding to do before your Spitfire is finished.




old git - - - - -aka John L.


Spitfire???? Spitfire???? I ain't building no stinkin' Spitfire!!!

Bill, AMA 4720

_____________________________

It's easy, just glue all the pieces together, and sand off everything that doesn't look like an airplane.

(in reply to old git)
       Post #: 36

RE: WACO YMF - 8/9/2006 10:59:51 AM   
Stickbuilder