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HomeAircraftHelicopterHelicopter Main Discussion › When Things Are Good They're Fantastic
04-23-2016 08:35 PM  31 months agoPost 1
icanfly

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ontario

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My 450 se has been an education in all things heli for as many years as I've flown cp heli. It was my first and had soooooo many issues along the day. There was a time it would have eaten wall but it took on a mind of it's own and occasionally did that for me. Now about 3.6 years after it first took flight as a fb unit and then fbl a year later, it was only a few days ago like yesterday it came around a tree in my yard to clip a branch with it's blades. Down it came tumbling onto the grass below in quick order and rest after a little roll throwing the canopy off and I can't remember what else, I HATE WHEN THAT HAPPENS.

All my other helis are in the shop waiting for a gear in a single servo, and my 550 nitro is being stubborn due to a fouled glow. It's the time of year when everything comes out to play, after they are made sure to run well first, the nitro especially.

I have not flown but twice in more than as many weeks because the urge just was not there, nothing curious about flinging around the backyard and parks have too many muddy areas, they'll be there another time, bull, I'm lazy lately, lol.

450's got bent stuff, stripped main gear, tweeked boom, tails damaged, though the majority survived quite well in spite of my miscalculation, I'll really want to get to somewhere much more roomy next time and keep smaller heli for the back yard.

Only an hour ago get the angst to fix it so it's what I did. Expecting the same typical behavior from the unmodified version I finally decided to take a calculated risk and hacksaw something vital (remains to be revealed at some later juncture in time). so put it back together this time weighing the blades to balance them and make necessary tracking adjustment of one half turn to one blade, pretty good right out the gate. Tail blades still cracked a bit but secure enough to spool it up full I take it out back and throttle up, test the helis reaction with the new mod and watch the gyro cough slightly re-adjusting to the mod all of a sudden.

Up goes the altered 450and I have to treat it differently by not correcting for inconsistencies in it's past form. I fly it around, do a few piros which the gyro seemed to like better, noticed the heli was more level in flight so it comes time to land. around the tree it goes and toward me in a gliding mini auto from 6 to 4 feet up and I watch, then stall and it doesn't flop over like it always would in it's former iteration. WOW was I pleasantly rewarded with mild perfection, disc much more predictable and controllable, much less strain on the gyro, flatter attitude in the air, and autos didn't wander while the heli touched the ground, simply fantastic I have to add. This is the time the 450 has come into it's best form without pressure, without that expectation or goal in mind and niiiiice and accurate on the sticks. I feel like I could 3d one of these much easier now (but really don't want to destroy a perfectly good albeit older 450 so it'll wait until the servo gears come in first).

Little things can teach you a lot about the possibilities, YES.

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04-23-2016 11:46 PM  31 months agoPost 2
jackp332

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Claremont, Nh USA

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So long story short, it sounds as if your crash was a blessing in disguise

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04-23-2016 11:57 PM  31 months agoPost 3
icanfly

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ontario

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Very perceptive, yes and worth every penny along the way. What that one heli taught me is invaluable even though I have a couple of 700's and some exceptional places to fly them.

This one helped understand where everyone is getting cyclic wobble. The 450se had it bad, real bad, no more. Highly likely to do with a helis resonant frequencies and the gyros feedback control, cancel the resonant frequencies and the gyro is not freaking out.

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04-24-2016 02:35 AM  31 months agoPost 4
Heli Fanatix

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Fountain Valley, CA

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When things:
- are working = FUN

When things arise, do you:
- know how do you handle it?

If you can come up with a plan to deal with the situation positively:
- you will be very OK many sirs!

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04-24-2016 02:37 PM  31 months agoPost 5
wjvail

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Meridian, Mississippi

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Funny you should post as you have. I've been having more fun than the law allows with my 450s lately. Sure I have big helis to fly and maybe my 450 looks like a toy to some but lately I've really been enjoying flying every evening on the fairway behind my house.

I've got an assortment of Scorpion 2221 motors and a bag of pinion gears and I've been experimenting with improving flight time without sacrificing the performance I personally like. I can parallel charge 6, 2,200, 3S batteries in a 1/2 an hour and fly for an hour.

One thing that is driving my resurgent enjoyment in my 450s is firmware version 2.0 in my Futaba 750s. This version firmware really makes my smaller helis feel like my 1.05 nitro helis. (No. I don't rep for Futaba.)

Good affordable fun. That's what it's all about, right?

Bill

"Well, Nothing bad can happen now."

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04-24-2016 03:24 PM  31 months agoPost 6
icanfly

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ontario

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that's a nice approach, exactly that of making the smaller heli fly like a bigger one, though they don't have the immense presence and sound of the larger ones there's also less mental and financial stress regarding crashing.

So here's how I reasoned out a similarity to all things rotating in a heli and something simple as a Frizbee, yup. Ever thrown a frizbee and no matter what it rolls off to the side and goes knife edge even though you threw it with the disc level? After a little more study on gyroscopic precession I went out back and tossed my frizbee but with a slightly different aoa than horizontal. The thing ALWAYS went sideways and knife edge before, always. So after I considered conservation of energy and precession factors I decided to start the throw and letting go while the frizbee aoa was 45° to the ground. low and behold with a nice easy spin it leveled and held pure horizontal after rolling from 45° and glided effortlessly, and taking a curved path toward the aoa when it began to descend from lack of speed in forward motion. A little induced aoa to the left and it would level out and go straight away. How could it have been so easy, and who's going to teach you these things unless you've stumbled on them yourself through experimentation, trail and error?

There was a spinner toy I threw around at a wide open area a year ago and discovered some unintended and fantastic, PHENOMENAL, results. It would flip, roll, even loop like ways the manufacture could not imagine and explained nowhere in their sales info. I tossed it in a variety of ways and the things you learn from the simplest of sources, simple mavelous. Apply those minor lessons toward a heli and it becomes that much easier to predict and fly, also tune and troubleshoot.

All my helis are "X", lol, and they truly are.

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04-24-2016 09:07 PM  31 months agoPost 7
wc_wickedclown (RIP)

rrProfessor

long beach calif

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2016 blue is going around brother

Insha Allah made in america

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04-24-2016 09:20 PM  31 months agoPost 8
icanfly

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ontario

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the only blue I'm seeing is CLEAR BLUE SKY, lol.

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