WattFlyer RC Electric Flight Forums - Discuss radio control eflight

WattFlyer RC Electric Flight Forums - Discuss radio control eflight (https://www.wattflyer.com/forums/index.php)
-   Sport Planes (Formerly I/C & Gas Conversion) (https://www.wattflyer.com/forums/forumdisplay.php?f=20)
-   -   AG-1 Agrivator (https://www.wattflyer.com/forums/showthread.php?t=54791)

rea59 03-29-2010 12:27 PM

AG-1 Agrivator
 
1 Attachment(s)
Made this last year from rolled up plans I ordered through the AMA plans service.
It's supposed to be a 1970s crop duster. The plans were for a Glow motor but I converted it to electric during the build.

Using a Power25 motor with a 4S2p 4000mah battery (2p because I needed all that weight up front, along with some lead).

Maiden flight was this past Saturday using a 12X6 APC prop. I was surprised considering the weight of this plane (around 6lbs) how quickly it left the ground. Winds were running over 10mph but this plane didn't even notice. I did have to keep the throttle up quite a ways to keep the speed up. Then again I had the wind helping one way and subtracting the other. Very, very smooth flying and slows down on landing great. (with a 10mph headwind you can land almost like a Harrier)

Nicked the prop on my 3rd landing so I going to try an 11X8 APC and remove 1oz from the nose and see what that does to it.

rea59 03-29-2010 12:33 PM

This thing is all solid sheeted on the fuse, even the tail feathers are solid 3/8" thick. Power seems good, although I'll be tweeking for awhile.
Still need to find a good pilot for it too.
I am still just amazed at how easy this thing flew. No trimming, just smooth flying.

firemanbill 03-29-2010 03:57 PM

Nice looking bird you have there Ray!:)

Dereck 04-08-2010 05:10 PM

Good looking model you found there Ray. Reminds me lots of my dear old Four Star 40 in layout - would it be around 60" span, by any chance? My 4* started out north of 6lbs with 20 nicad cells pulling around 30A - a little more power than you have, but not much, and she left a lot of folk who thought electrics couldn't actually fly thinking maybe they were wrong.

So you have built yourself a good sports model that should give you great flying for a long while. If you fancy a little improvement, there's still plenty of us around who have modified good flying glow models to equally well flying electrics and can recall how to alter frameworks. That 3/8" sheet tailplane would be right out the window for one ;)

FWIW - my Four Star started with props barely larger than it would have flown on as a glow model - around 11". She ended up with a geared inrunner turning a 15 x 10 at a mere 7000RPM and was way better than with the small props, in all respects. Your model might be even more fun if you fit a larger motor, keep your 4S and use a larger prop / same sort of wattage / current at lower RPM.

There's a lot of good looking models in those magazine plans ranges.

Regards

Dereck


All times are GMT +1. The time now is 06:55 AM.

Powered by: vBulletin
Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.

Page generated in 0.07744 seconds with 7 queries