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Old Jul 19, 2012, 04:42 PM
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HoosierGuy's Avatar
United States, IN
Joined Jan 2012
795 Posts
I don't have time to read the whole thread - but is it OK to run a three cell using the stock motor/esc/prop? I want to fly it next week and I would prefer to use a three cell.
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Old Jul 19, 2012, 06:19 PM
Registered User
Mooresville, IN
Joined Jun 2010
25 Posts
No problem running a 3s battery on the stock setup. I run a 3s 1000 mah battery in mine without a problem. In fact, I've never run a different battery in mine.
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Old Jul 19, 2012, 07:05 PM
Foam is where the heart is
brett.c's Avatar
Australia, NSW, Como
Joined Aug 2010
2,243 Posts
I would have 50+ flights on mine with a 1000mA 3s and 7x6 APC prop.
No problem at all and it really moves with this setup.
I did upgrade the ESC to 30A just to be on the safe side.

If you have a watt meter check your max current before flying.
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Old Jul 20, 2012, 02:44 PM
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HoosierGuy's Avatar
United States, IN
Joined Jan 2012
795 Posts
Thanks. I do have a watt meter. What is the max amps the motor can take?
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Old Jul 20, 2012, 03:11 PM
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kman24's Avatar
United States, NE, Bennington
Joined Jan 2010
4,615 Posts
Quote:
Originally Posted by HoosierGuy View Post
Thanks. I do have a watt meter. What is the max amps the motor can take?
These are the motors specs that are listed on HK's website...

Specs.
Rpm/V: 1550kv
Max Watts: 250W
Max Amps: 25A
Max Volt: 7.4~11.1v (2~3S)
Idle Current: 1.6A
Resistance: 0.046 ohms
Weight: 65g
Shaft: 3mm x 20mm threaded
Can Size: 30mm
Mount Diameter: 25mm

Prop test.
7x7.5 7.4v 15.5A 550g


http://www.hobbyking.com/hobbyking/s...ell_Motor.html

KMan
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Old Aug 26, 2012, 10:58 AM
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Joined Nov 2009
7 Posts
Just returned from two successful test flights of the Airfield P47 750mm, I got this as a kit or ARF version. Installed 4x9gram servos, all fit without any major modification. All of the reviews said make it nose heavy, so I did. Needed to open up the battery compartment considerably to accommodate a bigger battery. Motor is Eflite Park 400 920KV, EFLM1305. Mounted with wood screws, needed to drill new holes, tight fit.. Sticks out a bit but that's OK, gives plenty of clearance for the prop. For some reason, there was only one pushrod for the elevator/rudder, so I needed to make one using my personal favorite pushrod from the Eflite Apprentice, same wire diameter and the same clevis. Battery is Eflite 1250 mAh EFLB12503S. Used a 30amp ESC, also Eflite. Prop 9x6E. Receiver AR600. Transmitter DX6i. Reduced aileron travel to 40%, elevator 50%, rudder 50%. The first test flight was with a smaller battery and 9x4.7ES prop; it got into the air but obviously lacked the power and seemed to be tail heavy very hard to control,. For 2nd flight, put in the larger battery and 9x6 prop, and got much better results. Trimmed out nicely and would fly with hands-off for a few seconds without noticeable drift or roll. Got a good 10 minutes on the battery, just going about in circles, about 60% throttle. HOWEVER not a beginner's plane, and does not like the wind. I flew 2nd flight in 2.5-3 kt wind, and it jumps around quite a bit. Turning from downwind to upwind nearly stops dead over ground (but did not stall), 40% aileron was plenty as it rolls quickly. Does not stall gracefully; drops the left wing suddenly (torque?). Seems rugged enough. Two rather rough landings, one fairly decent, on grass, no serious damage (wing tips are bent). All in all, a fairly decent park flyer for calm days.
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Old Dec 05, 2012, 01:27 PM
Qualified foam surgeon
FlyGuy3345's Avatar
United States, WI, Sheboygan
Joined Apr 2012
731 Posts
Could someone point me in the right Direction to put retracts on this plane. I would use these.

http://www.pw-rc.com/product_info.ph...oducts_id/2385
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Old Dec 05, 2012, 01:29 PM
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FlyGuy3345's Avatar
United States, WI, Sheboygan
Joined Apr 2012
731 Posts
I am assuming this is the same as FMS p-47 with a few cosmetic changes and maybe different electronics.
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Old Dec 08, 2012, 03:01 AM
No Guts, No Glory
timmybeetle's Avatar
Nederland, LI, Helden
Joined Sep 2010
581 Posts
retracs

Quote:
Originally Posted by FlyGuy3345 View Post
Could someone point me in the right Direction to put retracts on this plane. I would use these.

http://www.pw-rc.com/product_info.ph...oducts_id/2385
Hi

Retracs on this plane......personaly I think dont do it.
Plane is flying perfect without gear. and extra weight ...why do you want todo this?

grts Hans
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Old Dec 08, 2012, 06:35 PM
Qualified foam surgeon
FlyGuy3345's Avatar
United States, WI, Sheboygan
Joined Apr 2012
731 Posts
Quote:
Originally Posted by timmybeetle View Post
Hi

Retracs on this plane......personaly I think dont do it.
Plane is flying perfect without gear. and extra weight ...why do you want todo this?

grts Hans
I like to land on runways but I hate having those wheels sticking out. I try to mod my planes to look more scale as I love scale modeling. I would pull them out and belly land but I enjoy the takeoff and landings.
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