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WACO YMF

Old 12-15-2011, 10:50 AM
  #14176
aminiet
 
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That's a P&W R985 Right ?
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Old 12-15-2011, 12:34 PM
  #14177
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Default RE: WACO YMF

Hi Dan,
great sound I love it.


Peter
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Old 12-15-2011, 05:44 PM
  #14178
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Default RE: WACO YMF

Mitch,

Received my t-shirts. Great colors!!! The wife even approves! Thanks for all your work for the brothers - we appreciate it.

david
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Old 12-15-2011, 06:02 PM
  #14179
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Quote:
ORIGINAL: Jim Henley

Catflyer, I think the later kits had some inprovements, over the earlier one. I'd go for it if it is NIB.
I'm not going for it, I just went through my e-trade account summary for the past 5 years and it looks like I should have invested in Pica Waco kits because at the price this "KIT" is at now I would have made a lot better return on my investments. I just can't get my head wrapped around paying $100+ (Tower discounts and free shipping) more for a kit than the GP ARF that is roughly the same size and close to the same model.
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Old 12-15-2011, 06:07 PM
  #14180
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Default RE: WACO YMF

I have to agree, these Pica kits can fetch unreal prices, that is why a lot of these fellows are cutting their own. If time is a consideration, the GP ARF may be the way to go.
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Old 12-15-2011, 06:28 PM
  #14181
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Default RE: WACO YMF

thats why a lot of folks are turning to scracth building these I guess.

I paid way too much for mine as well .... but i would do it again in a heart beat. The finished project is worth it.
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Old 12-16-2011, 05:36 AM
  #14182
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Hi Bill
Nice Job.
I hope this doesn't piss off the purest scale buffs. my smaller YMF-5 was good for barnstorming with the ailerons cranked to max deflection. It took the advice of others with my Pepino waco's to build the ailerons one bay longer. I found from
time to time with the smaller Waco that I wished the ailerons would have been bigger.(this does take it away from being scale). red one is 1/6 scale. frame one'(s) are 1/4 scale.
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Old 12-16-2011, 05:41 AM
  #14183
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Default RE: WACO YMF

pictures posted to last message
Rob
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Old 12-16-2011, 07:32 AM
  #14184
LesUyeda
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"I hope this doesn't piss off the purest scale buffs."

Good grief. The valve covers don't even line up with the blisters:-((((((((((((((((

:-))))))))))))

Les
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Old 12-16-2011, 08:44 AM
  #14185
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I would like an extra large if any are left. Send payment details, as I have not been reading this thread lately. Thanks Marvin WB #53
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Old 12-16-2011, 08:58 AM
  #14186
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Default RE: WACO YMF

Bob,

I may be a stickler for scale (spend too much time taking pictures of full size) but it does not cause me to loose sleep when something is not quite right. For what its worth, the cowls on the framed up birds are crooked. Since the cowls are UMF cowls for a Continental Engine used on UMFs and the #1 cylinder is positioned at 12 o'clock, the cowl should line up with the wide space between bumps at 12 o'clock. The rocker arms on the Continental engine are spaced further apart on the cylinder than the space between the rocker arms on adjacent cylinders. The template included on all of the PICA plans indicates this.

As for the extra bay on the aileron that's not a problem, it will be hardly noticeable. I have seen many full scale Wacos with modifications that were not factory. Jet assisted UPFs, 500 hp Wright 975E&F-2&3 9 cylinder engines stuffed in to a CTO, a Lycoming 9 cylinder in a UPF, home made enclosed cockpits and more. On Wacos with the aluminum aileron, they usually were not changed due to the difficulty in making an extended aileron with the corrugations. Most Wacos were not used for aerobatics although some were used in air shows and many Wacos are rated for basic aerobatics.
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Old 12-16-2011, 10:54 AM
  #14187
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Hello all,

Good day at the field had three flights and the Waco did really good Robert also had his Waco and had good flights. I think we got some decent videos so some time this weekend I’ll try and edit them down to the important parts (take off & landings) Here’s a couple still shot from the video.
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Old 12-16-2011, 05:38 PM
  #14188
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Default RE: WACO YMF

dan, robert,
both of you look great and are flying tail HIGH.[8D] great to see you both in the air, maybe some day i'll be able to join your birds in flight. in the mean time i'm at the drawing board.[]
regards,
chris melhus ceije 196
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Old 12-17-2011, 03:01 AM
  #14189
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Quote:
ORIGINAL: mrdhud

I all most forgot to tell you the best change I made to the Waco. After weighing all the weight I had in the nose and the weight of the G26 I decided to put a larger engine in her I was able to get more power (that I needed) and remove all the weight I had in the nose. I think your really going to like the sound of this engine.


http://www.youtube.com/user/imperialrcclub?feature=mhee
Okay Day your killing me, what motor is that???
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Old 12-17-2011, 05:54 AM
  #14190
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OK Guys I guess I have to fess up on the Waco engine. It is a 400cc moki engine only thing is it’s not really in my Waco. I kind of photo shopped the sound track from Scott Prossen’s 29% P47 Razor back on too my video just playing around. This is the same engine that Dave fly’s in his 40% Waco (I think) I’m not much of a practical joker but I couldn’t resist posting the video. (It did sound pretty cool didn’t it)
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Old 12-17-2011, 06:29 AM
  #14191
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Default RE: WACO YMF

Good one!! Had me going for a while,,I'm thinking what kind of radial makes that sound and fits into that Waco......had me searching the internet for small radials...

Cheers,
Dave.
W/B # 180
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Old 12-17-2011, 09:23 AM
  #14192
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Here’s the video of my three flights. I cut out most of the boring stuff to keep it short. My first landing is pretty bad so any suggestions on how to better my flying will be appreciated. I will get Roberts up next.

http://www.youtube.com/user/imperialrcclub?feature=mhee
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Old 12-17-2011, 02:01 PM
  #14193
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Default RE: WACO YMF

Here’s Roberts video I got the wrong date on it (dang it)

http://www.youtube.com/user/imperialrcclub?feature=mhee

Whats up with the blue bands??
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Old 12-17-2011, 03:12 PM
  #14194
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Default RE: WACO YMF

Dan,
If we could get our ground's keeper to level thing's off it might not be so bad.LOL
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Old 12-17-2011, 04:49 PM
  #14195
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It's your Florida grass that's faulty!!!

I was greasing the wheel landings up here, but down at M/P the thing was bouncing around like a yo-yo!!!! If you like I'll try to send some good "landing" grass down to you...you're landing problems will be a thing of the past...

Cheers
Dave. W/B # 180
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Old 12-17-2011, 06:29 PM
  #14196
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Default RE: WACO YMF

Dan, Robert,

Thanks for posting the video of your WACO's. I enjoyed seeing them.

For the sake of conversation and/or curiosity, Have either of you tried going up an inch or two in prop diameter and down on pitch an inch or maybe two.

Dan, congrats on the repair. All was looking good in the flights.
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Old 12-17-2011, 06:45 PM
  #14197
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Rick, please elaborate on the reasoning for such a consideration. I'm not much of a prop guy so I'll take any advice available. And thank's. The Waco is a real joy to fly.
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Old 12-18-2011, 01:18 PM
  #14198
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Default RE: WACO YMF

Reasoning goes something like this; slow airspeed, high drag models need a large, slow speed volume of air accelerated for maximum efficiency, low drag models prefer a smaller volume of high speed air. The Waco is a slowish, high drag model, so the biggest prop with a pitch that matches the models airspeed will be more efficient than a smaller diameter, high pitch prop. So each inch of extra diameter you can try an inch less pitch, get/borrow some different props and go flying. The best prop might be something quite unlike the expected size. A wide blade paddle sort will likely work better than a narrow blade. Cut and try.
Evan, WB #12.
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Old 12-18-2011, 01:42 PM
  #14199
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Very well put pimmnz. I am picking up a 20-6 tomorrow. From my uneducated calculations that should do the trick. As you have noted an probably noticed in the video our Waco's (at least mine) fly too fast. Yes I know I can cut the throttle but
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Old 12-18-2011, 03:47 PM
  #14200
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Wel with the demise of my Cox/Pica ARF and the Pica kit on ebay this past week bringing a premium I picked up a GP ARF and OS 33 at the LHS yesterday but they are wrapped and under the tree till next Sunday. In the mean time I tile printed my 1/4 scale CTO plans and started construction of it this afternoon. I got the three plan sheets printed full sized at a local blueprint shop but I wanted a set to build on and a set to build from so I was able to pick the individule tiles and print them then tape them together and trim out the patterns.

Don't mind the messy work area, thats actually my helicopter bench that I'm starting the fuselage sides on. I'm building a new table in the other room for the CTO wings but haven't quite got it done.

Anyway as of this evening I got the plans all prepared and have 1 of the 1/4" spruce and balsa side framework together. I'm going to make some 1/2" gussets out of 1/32 ply for all of the joints but here are a couple of pictures from today as well as the finished model I'm shooting for.
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