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Official FlightLine OV-10 Bronco Discussion Thread
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Originally posted by Evan D View PostInteresting take on it. When I bought it I was ho hum. When I built it I built it with 2 1/2 times the stock power. I re painted it and I added P&T FPV. As such I think it's a great plane. One of my go to planes, no not really but I like it more than not...
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Interesting take on it. When I bought it I was ho hum. When I built it I built it with 2 1/2 times the stock power. I re painted it and I added P&T FPV. As such I think it's a great plane. One of my go to planes, no not really but I like it more than not...
Originally posted by AirHead View Post
I wouldn't be concerned dude. I was considering buying this plane, but I think I'll pass. There are "corrosive narratives" out there about this aircraft. But, let the truth be told, right! After 5 years of collective chanting for this package and after putting it into production; baking it in the oven and shipping it to all the folks who couldn't wait to get their hands on it, it doesn't impress enough to be the "Ace of Spades"....Too bad.....
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Originally posted by walkerm45 View Postnot a peep in 5 days
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Originally posted by walkerm45 View Postnot a peep in 5 days
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Originally posted by OV10 View Post......I am convinced that this is the reason for the "wag" when the airframe is subjected to really heavy maneuvers or winds and is countered real time with the gyros.
Thats the way I see it [/FONT][/COLOR][/LEFT]
My last Ov-10 flight last weekend was late in the day and the wind had laid to nothing. Made a straight and level pass at a higher altitude, moderate speed and with no control inputs to load the airframe.
It still showed some (less than before) wiggle in yaw, not caused by turbulence or maneuvering.
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I have seen the never ending talk about the yaw "waggle" factor on this bird since it's release. In case the majority have missed my analysis of this anomaly on this airframe
here is an excerpt from post#22 from my build thread OV10's version of Foam 72" (1800mm) OV-10A Bronco build.
Speaking of challenges, one of the things I discovered during this build I believe is the reason the other pilots are commenting on seeing a "wagging" on the Flight Line Bronco due to a structural anomaly in the wing/boom connection rigidity.When I was doing the fit up of the center wing/booms/fuselage I lifted the assembly by one of the booms at the rear and observed that there was torsion on the wing between the fuse/boom.So I alternately lifted the booms and could observe a cross torsion which would tilt the vertical pitch of the prop drive lines at the leading edge of the wingOK...….had to add another CF spar (that's 3 now) in the center wing with a new one at the leading edge cause the quarter round balsa leading edge was a 2 piece segment between the boom/fuse and not giving full span rigidity.I assumed that the horizontal stab would tame this down a bit also but since I do have the FL Bronco to examine I did the same test on it.To my surprise there is some torsion on the center wing between the fuselage/boom when lifted by the rear of the boom.I am convinced that this is the reason for the "wag" when the airframe is subjected to really heavy maneuvers or winds and is countered real time with the gyros.
Thats the way I see it
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Note that the yaw hunting issue is widely reported and typically solved with a gyro.
My take is that some combination of aerodynamic factors makes this Ov-10 slightly over stable in yaw, or the verticals are in some turbulence. I have had a couple of different old school pattern aircraft they had too much vertical stabilizer. They typically hunted a bit in yaw, exactly like the OV-10.
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All I know is with the recalibration of my ESCs took care of my issue with my plane.
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Originally posted by sam51401 View PostIm interested in the yaw issue seemingly being addressed by recalibrating both ESC's.
Multi-engined planes that don't have their motors synced will generally pull on one side (the stronger side or the side that begins to spin a bit sooner than the other side), as if your rudder was not centered. The plane won't generally alternate pulling one side, then the other, which is what would be needed to produce a back and forth, side to side yaw oscillation.
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Im interested in the yaw issue seemingly being addressed by recalibrating both ESC's.
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Originally posted by Mad Baron View PostWhen I flew mine it had the same yaw and wiggle at low speed and for the next flight I recalibrated the ESCs and it took care of the problem. I am quite happy with the power system that came with my plane.
For scale like flying around the pattern, the power is not terrible. However, it needs to be able to do a loop from level flight to be satisfying to me. Also would like the option to do a little faster fly by without a dive to build up speed.
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When I flew mine it had the same yaw and wiggle at low speed and for the next flight I recalibrated the ESCs and it took care of the problem. I am quite happy with the power system that came with my plane.
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Weird. Would not let me add a photo to my previous post. Quick shot showing the seats.1 Photo
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Maiden plus a couple more went well over the weekend. All was as expected with no surprises. Really have nothing new to report that has not been previously reported.
Great fun in the pattern shooting touch and goes and making very low passes. Did rolls and four point rolls and a couple of wingovers. I have to say that this model does win the award for the most anemic RC warbird I have ever flown. Power system upgrade coming soon.
Mine exhibted the expected hunting in yaw and some wiggles in roll and pitch in the mild turbulence at our field over the weekend. Gyro coming soon.
Stage one of the cockpit detailing is complete. Seats repainted to make the cockpit look more like N338RC Stage two soon, with new instrument panel, side console panel and rear circuit breaker panel art being added, and some additional seat and cockpit details. Stage 3 will be some new pilot figures to replace the Freewing mutant pilot figures and that will be good enough.
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