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Old 12-28-2010, 12:14 AM   #1
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Default Electric motor size for E-Flite PT-19?

Hi Gang, first 'post' 'n I'm lookin 4 some input.

The E-Flite PT-19 sez to go with a 480 & 40amp esc.

Now I have the '480' from a Parkzone Corsair and the 30amp esc...

USABLE on the PT-19???

Let me know. Am anxious to hear from the 'electric' types out there. Put the old fuel can away for good...

Meanwhile, I'm gonna get a snack
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Old 12-28-2010, 12:26 AM   #2
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I use a 480 in mine. Started out with the 450. Really like it better than the 450. Here is the one I have
Henry
http://www.headsuprc.com/servlet/the...80-Plus/Detail
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Old 12-28-2010, 12:30 AM   #3
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I now use the 450 in the smaller one from Great Planes.


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Old 12-28-2010, 12:32 AM   #4
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Default ESC???

OK, thanks....but, is the 30amp esc that came with the Corsair adaquate for the Parkzone Corsair '480' in the PT-19?
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Old 12-28-2010, 12:40 AM   #5
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Sorry, I can't say for sure but my 480 requires a 40 amp speed control.
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Old 12-28-2010, 12:43 AM   #6
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Thank you 4 your replys, Henery.

Enjoy a snack on me
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Old 12-28-2010, 12:56 AM   #7
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Originally Posted by theoldALFER View Post
OK, thanks....but, is the 30amp esc that came with the Corsair adaquate for the Parkzone Corsair '480' in the PT-19?
I would step up to a 40 a ESC. The current draw is going to tied to the prop size you are using. The Corsair prop is either a 2 or three blade 9.5 x 7.5. E Flite recommends a 10 x 8 for the 450 motor or a 12 x 6 for the 480 motor, both of whihc are likely to boost your current draw above what I would be comfortable with on the 30.
I use a Heads Up Power 480 plus motor, a 40 a esc and the TP 11 x 5.5 prop on mine and seems to work well. I also use a 3 a UBEC to run the servos and receiver in my PT 19

http://www.headsuprc.com/servlet/the...80-Plus/Detail
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Old 12-28-2010, 01:09 AM   #8
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Default THANKS!

Y'all are great...

this electric stuff is new to me - an old "glow head."

You wouldn't know I was (am) an electrician for 50 years! Oh well......
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Old 12-28-2010, 01:31 AM   #9
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I was an A&P mechanic for over 50 years, still am.
Henry
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Old 12-29-2010, 05:33 AM   #10
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Wow, should have met ya when I still had my Aeronca Champ (7DC).

Now I'm waiting on the E-Flite Champ to come in to the LHS. Can't fit in it, but a Champ is a Champ...
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Old 12-29-2010, 01:05 PM   #11
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In the late 50's and early 60's I got quite a bit of time in the Champ and J3. I liked the Champ better because you could fly it solo from the front seat. Lately I had a Pilot Champ from Hobby Lobby. It flew very scale like but I had a 480 in it so it went up like a rocket.One day I flew it in too much wind and on final a gust got me. I didn't repair it.
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Old 12-29-2010, 04:32 PM   #12
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Thanks for your reply.

??? Do you use/need a seperate 4.8v battery pac for the receiver (like a glow set up for us old 'glow heads') when you use the what-ya-call it ?
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Old 12-29-2010, 05:42 PM   #13
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No I do not, I get all my power from the lipo. On the larger 25,40, and 60 size I use a speed control with no bec so I use a srparate ubec.
http://www.headsuprc.com/servlet/the...r-5-Amp/Detail
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Old 01-14-2011, 07:38 PM   #14
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I find the recommendation for a 40 esc strangely overkill, maybe I'm missing something. What kind of numbers are you guys getting on the watt meter? I have a Park 480 motor installed in an E-flite P-47 (the old razorback version) spinning an APC 10x7E prop on 3S, and it only pulls about 20 amps at WOT, static. It weighs 30oz RTF and goes like stink! The PT-19 is about the same wing area and weight. Seem sto me that the 960kv 480 from the corsair with a 10x7 APC E prop should be plenty of power, and under 30 amps. I just can't see the need to prop for that much power on a scale military trainer; it's not supposed to hang on the prop?

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Down with Gravity!
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Old 01-14-2011, 09:09 PM   #15
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Originally Posted by buzzbomber View Post
I find the recommendation for a 40 esc strangely overkill, maybe I'm missing something. What kind of numbers are you guys getting on the watt meter? I have a Park 480 motor installed in an E-flite P-47 (the old razorback version) spinning an APC 10x7E prop on 3S, and it only pulls about 20 amps at WOT, static. It weighs 30oz RTF and goes like stink! The PT-19 is about the same wing area and weight. Seem sto me that the 960kv 480 from the corsair with a 10x7 APC E prop should be plenty of power, and under 30 amps. I just can't see the need to prop for that much power on a scale military trainer; it's not supposed to hang on the prop?
Been a while since I did the set up, but as I recall it draws around 26-27 amps, so I was just more comfortable going with the higher rated esc. You are correct a 30 would probably be OK, just my bias to go with the higher capacity.
You are also correct in that the PT 19 does ot need that much power to fly well. I set mine up at first with the 450 motor, using a 10 x 7 or 10x 8 prop and it flew fine after I got it trimmed out. I had problems getting the balance to a point in the airplane that it would fly nicely without using more nose down trim than I wanted, with the battery as far forward as I could get it. Between adding weight to the nose and going with a heavier, 480 motor I decided to go the 480 route. So now I have more power than I usually use, trims nicely ( although I ended up with the battery pretty far back to get balanced) and should the need arise can chase the Corsairs around
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Old 01-14-2011, 09:28 PM   #16
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Horizon recommends a 40 amp speed control with a 480 motor.
Henry
http://www.horizonhobby.com/Products...ormance+Set-up+
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Old 01-14-2011, 09:59 PM   #17
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Hi Guys!

Ya'll snowed in like we are in upstate NY? 9 degreez out, three feet of snow on da ground, and the Yellow Cub looks like ...well you know... in the snow.

HURRY SPRING!!!!

i'LL BE BUILDING SOMETHING i FOUND HIDDEN UNDER THE WORK BENCH (WHICH WAS HIDDEN UNDER STUFF) AS SOON AS I CAN FIGURE OUT HOW TO UNGLUE MY FINGERS ---DARN CA! GOTTA BE CAREFULL THESE DAYZ...
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