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  • March 09, 2021, 12:25:02 AM

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Author Topic: Primary Force Electric power  (Read 435 times)

Offline djmachinist10

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Primary Force Electric power
« on: January 26, 2021, 03:50:39 PM »
I finally finished my Primary Force kit I got from Mike about a year ago. My friend Troy Martin did covering in transparent blue Monokote with white trim. Arrowind 2809/15 motor turning a cut down APC 11x5.5 EP Pusher Prop. Castle Talon 35 ESC, Hubin FM-9 timer, ThunderPower 4S 2200 mah lipo battery. ready to fly weight came out 37 oz. after trimming the plane. 58 ft. .018 lines. she flys a 5.3 second lap. the plane flys great. very stable to level flight coming out of the verticals. she turns very good and very smooth. I could not be happier. best flying plane of this size I have ever had. Thanks Mike for a very nice kit and a great flying plane...Dale Jones


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Online Mike Morrow

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Re: Primary Force Electric power
« Reply #1 on: January 26, 2021, 09:11:08 PM »
Very nice! I like the blue. Is that a Brodak battery box?

Mike

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Offline djmachinist10

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Re: Primary Force Electric power
« Reply #2 on: January 27, 2021, 06:55:51 AM »
Thanks, yes that is the box from the Ringmaster Electric conversion kit. I extended the box a 1/4Ē to give the battery a little more room for easy access.....Dale

Offline TDM

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Re: Primary Force Electric power
« Reply #3 on: January 27, 2021, 01:42:34 PM »
11x6 night be a better choice. XOAR makes soma super nice props for electric.
Full flight schedule? How is the battery consumption?
Each goal you meet is a moment of happiness
Happiness is the harmony between what you think and what you do. Mahatma Gandhi

Offline djmachinist10

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Re: Primary Force Electric power
« Reply #4 on: January 27, 2021, 08:50:26 PM »
Thanks for the reply, I think I will stick to the slightly cut down APC 11x5.5 pusher. I am getting 5.3 laps on 58 ft.
.015 lines with good line tension in the overhead maneuvers. I am using a 4S 2200 lipo which I have 25 percent battery capacity left after a 5 min. 20 second run. The plane is flying so nice, I do not want to touch it.

Offline MikeyPratt

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Re: Primary Force Electric power
« Reply #5 on: February 20, 2021, 10:34:39 AM »
Hi Dale,
Nice looking model Dale, Great Job!  You might want to try the an 11 X 6 Prop that TDM suggested with a little longer lines (60í) the lap time should be at 5.0 to 5.1 for best all around performance.  You will find that the turns get very snappy at that speed.  It wonít seem like much of a difference, but it does make things really cool to watch it snap through a turn and lock into the flats.

Also, use only the Fancher hard point handle, set up so the handle is vertical at neutral.  It will seem a little different at first but after a flight or two it becomes a perfect fit between you and the model.  You can ask me how I know this?

Later,
Mikey

Offline MikeyPratt

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Re: Primary Force Electric power
« Reply #6 on: February 20, 2021, 03:30:53 PM »
Hi Dale,
After reading your post again I noticed your using .018 braided lines, they are pretty heavy for a 37 ounce model.  You could be using at least .015 braided lines with a look at .012 would be should work even better.  Iím not sure what you have for tip weight in the model now but my thinking it could go down to make up for the larger size of lines.  My thinking is you could go down to 1/4 to 1/2 in total tip weight with excellent line tension all around.

Another thing is to consider a normal rotation prop, I think that the pusher prop is masking some of the flight performance gains and holding you both back.  Most of the pusher props Iíve tried they seem to push the nose of the model to the outside of the circle requiring the lead-out position to be moved forward to compensate for the  crabbing effect on the model.  With the proper set these pusher props are a good thing but getting the proper set up is tricky.  It takes a bunch of flights to find that out and trying different settings, i.e. lead-out position, tip weight, line length, and C.G. To make sure it all works together.

The P-Force XL is even better at 54 ounces with 4 cell 2700 pack and and the 6 cell 2200 pack all up weight of 56.5 ounces with active timer. 

Later,
Mikey
« Last Edit: February 20, 2021, 08:34:25 PM by MikeyPratt »

Offline djmachinist10

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Re: Primary Force Electric power
« Reply #7 on: March 01, 2021, 10:22:55 AM »
Mike, thanks for the comments. I misspoke on the lines, I am using 58í-0Ēx 0.015 lines. I going to try 0.012 lines next. I am building a second PF now. I would like to purchase your new PF plans with the new fuselage changes.
Thanks,
Dale

Offline MikeyPratt

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Re: Primary Force Electric power
« Reply #8 on: Yesterday at 05:43:22 PM »
Dale,
Iíll put you on the list, there is about 20 now on the list, Iíll let you know when I send them out, hopefully at the of April, the plans are pretty much done along with the laser cut files, just need to finish the one Iím building and fly it.

Later,
Mikey


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