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-   -   Great Planes Sequence F3A (https://www.rcuniverse.com/forum/electric-pattern-aircraft-385/9079843-great-planes-sequence-f3a.html)

AWorrest 12-06-2012 01:21 AM

RE: Great Planes Sequence F3A
 


ORIGINAL: Bob Pastorello

Allan - I use that Rimfire, been on three planes (two crashes), no noises and plenty of poop on a good 4S. I did find running a 13.5 x 6 is a really good prop, doesn't go too fast, pulls on dead corners pretty well - but at wide open it is very close to max amps on the RImfire, so I upped the ESC to a 80 A, just to be sure it wouldn't ever cook. Max I ever measure with a fresh charge is about 65A, so I wanted some overhead capacity in the ESC.

I also am using a pretty rapid spool up throttle curve, so the low end has some guts to it...


Bob,</p>

I&rsquo;m reconsidering the bearings being the problem. While the motor noise is excessive, the motor certainly doesn&rsquo;t lack power. Earlier this year I had a problem with the Torque motor bearings on my Vanquish. They needed lubrication. That motor got noisy but it also lost power. The Rimfire isn&rsquo;t showing any power lost. I&rsquo;m going to look into the ESC programming as a possible source of the noise.</p>

Except for the noise, I&rsquo;m satisfied with my power setup. I&rsquo;ll be using the plane to practice Advanced maneuvers so I&rsquo;m not requiring the performance someone would require of it for Master or FAI. Even with a 4000 mAh four-cell LiPo, the plane has sufficient vertical performance. Before someone comments that this battery is too large, let me say that I have two of them and I plan to wear them out before purchasing something more appropriate. Using the 12x8 APC prop, the max current draw was less than 47A which should keep the 50A ESC happy.</p>

After only the one maiden flight to judge by, the plane seems to be well mannered. The elevator and aileron response was too much for my taste. I may have to look into installing some longer control horns. With the CG just behind the recommended point, the plane did require a bit of up trim. It may have to be until next spring before I have a chance to trim the plane properly.</p>

Allan</p>

Flyer88 12-06-2012 06:30 AM

RE: Great Planes Sequence F3A
 
The plane needs up trim because the incidence is out on this aircraft. The rear stab is way too positive.

Put a meter on it and see.....

The wing with refence to the canopy line is +.3 and the stab is + 1.5 ??????


AWorrest 12-06-2012 07:50 AM

RE: Great Planes Sequence F3A
 


While the decalage is negative on mine as well, it is only about half as much.</p>

Allan</p>

jeffk464 01-26-2013 02:24 PM

RE: Great Planes Sequence F3A
 
Well finally got my sequence in the air, one flight on a 2600mah battery, balanced with no lead with my motor and battery. I probably got 7-8 minutes before it started to fade and had pretty good vertical. I'm sure I it can really be improved with fine tuning on trimming and balancing, but my first impression is that its a great flier. Being a pattern plane it seems to overcome a lot of the twitchyness associated with small planes, its much, much more locked in than my 41" yak. By the way I had the same problem as everyone the canopy doesn't fit out of the box.

RalphZ 02-02-2013 07:26 AM

RE: Great Planes Sequence F3A
 
Mine is still in the box and bursting to get out! I'll start assembling it soon. No rush, it's freezing here on Long Island, NY. I expect it to be a great flier and I love the looks of it. I flew a Dirty Birdy years ago and enjoyed it a lot. Glad there are some observations and hints on it for assembly and flying to help me.
Ralph


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