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Old 11-27-2007, 08:04 PM   #1
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Ok So how big is a DL 50 compared to Glow
or ZDZ 80 . I was reading a string on here about a GP Patty W. Extra unless this is a different plane than I am thinking it is about a 120 2stroke glow and they are talking DL50
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Old 11-27-2007, 08:42 PM   #2
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The only GP Patty Wagstaff Extra that I can see on GP's website is a 1.60 ARF. If you look at the specs, they recommend a 41cc-65cc gas engine for this plane. If this is the right plane then the DL50 is the perfect fit.

Check it out here:

Check out the Thunder Hangar Blog!!
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Old 11-27-2007, 08:46 PM   #3
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dl 50 = 50cc
glow 120= 1.20cu

one cu = 16.39 cc therefor the glow120: 1.2cu x 19.39=19.6cc BUT the gas motors generally don't put out like the glow ones do so a direct displacement comparison isn't possible altho without any gas experience i would think that a dl50 is a bit on the big side for a 120 sized bird although i've seen a saito 125 on a 40 sized trainer and it flys superb
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Old 11-27-2007, 11:45 PM   #4
Gary Maker
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I believe that Frank Klink, a member here, has a DA50cc in his Patty Waggstaff Extra 300 and it flys absolutely great! It was his main IMAC bird a couple of years back and he did pretty good with it!

I'll have to check it out but I too don't believe its a 1.20 size plane but is indeed the 1.60 size as mentioned above.

Yep, we were right. Here are the specs:

78 in Wingspan:
1157 sq in Wing Area:
72 in Length:
14 to 16 lbs Weight:
4-Ch, 4-High Torque Servo Radio:
1.6 to 2.1 Engine 2C:
2.0 to 3.0 Engine 4C:
41 to 65cc Gasoline Engine:
Stoney Creek Hawks RC
MAAC No. 43659

Radios used: Spektrum DX6i
Current builds: 1/4 scale J3 Cub & Neiuport 17 and KMP B-25.
Currently flying: Scratched Tele 40, Parkzone Stryker & 60" SPAD Debonaire


"Time flies like an arrow - fruit flys like a banana." Groucho Marks
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Old 11-28-2007, 12:17 AM   #5
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As Gary pointed out the link in Grizaks post is for a 25% Extra 300s in Patty Wagstaff colours.

Requires: 2-stroke 1.6-2.1 cu in (25-35 cc) or 4-stroke 2.0-3.0 cu in (33-50 cc) glow or 2.5-3.8 cu in (41-65 cc) gasoline engine

Where do you see 1.20 four stroke in the recomended engines?

You must be talking about a different, smaller model like around 68" for a 1.20 FS.

And keep a ZDZ 80 away from even the 25% one, that sucka is for 33% airplanes.
Jim Daly
IMAC Sequence Committee Member
Your Friendly Neighborhood SouthEast Zone Director
MAAC #14323L IMAC #3678
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