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08-18-2008 06:35 PM  12 years ago
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krashtagain

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Whirlybird crash
Anyone see the whirlybird crash at IRCHA ? I hated to see that I really like those old birds . Just wondering if the pilot got it fixed or is it fixable ?
If you're not living on the edge you're just taking up space !
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08-18-2008 10:08 PM  12 years ago
helicrack

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Was that the DuBro with the engine on top the guy was flying center stage Saturday at dusk?".........said the joker to the thief"
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08-18-2008 10:12 PM  12 years ago
krashtagain

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No , the whirlybird I seen crash was on thursdayIf you're not living on the edge you're just taking up space !
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08-18-2008 10:27 PM  12 years ago
skyking1

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Dubro
The Dubro flew twice on Thursday. Very unique setup..............
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08-19-2008 03:59 AM  12 years ago
helicrack

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Sorry for the hijack, but the Dubro was a cool thing to see,(and listen to) and I saw it Saturday night. I thought I saw him land pretty hard at dusk on Saturday and must have got it confused with the other crash you were talking about krashtagain.

Anybody got a picture of the Whirlybird that krashtagain is talking about to refresh me on the design?
".........said the joker to the thief"
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08-19-2008 11:58 PM  12 years ago
heli_headcase

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Whirlybird crasher here...
Hey guys,

Yeah, it was me. Let's get the record straight.

JCZankl is the owner of the 'bird I crashed. The week prior to IRCHA, I did a complete rebuild on the main rotor of his Du-Bro Whirlybird 505 so that way we both would know it was good to go. I shipped the head to him and JC reassembled the heli, awaiting my final inspection before flying it. I made a number of adjustments to the control system to be sure all parts were moving as required and in the correct direction.

I have quite a bit of experience flying my Whirly, enough to know you can't just fire it up and fly around without some (brain) adjustment period. I made the suggestion that I do the maiden flight to check it out and trim the controls.

On Thursday (or Wed, can't remember) and with Scott Stouffer of SKS Video Productions breathing down my back, I fired up the engine and safely lifted the heli into a wobbly hover. The most obvious problem was the tail neutral needing trimming and since there's NO gyro on the tail, correct trim is very important.

At about 4ft high, a light breeze swung the nose around 180deg and the heli decided to go on a little trip. Normally this isn't a big deal and I didn't think it would be this time either BUT - the nose was down a little and that's where it wanted to stay, down. All the aft elevator available wasn't enough and the heli picked up speed as it went into the dirt.

You want to talk about feeling bad? Here I am, the person that knows these heli's, requested that I fly it instead of JC so it has a fighting chance to live out its first flight. Isn't that ironic? Of course Scott got the crash on tape...

To prove I really CAN fly these caveman helicopters, I ran back to my table and grabbed my 505, the white with red and blue stripes, and promptly put in a successful flight. And yes, it did have a minor tip-over one evening because I failed to shut the engine off while it was sitting on the ground. If it's running, the slightest puff of air can knock it over. I have to force myself to remember to kill it, right now, on ground contact.

Sat night, right after the prize handouts, I wanted to get in one last flight before the light went away. That was a nice one. Did anyone happen to see how many people were hanging around watching? I was too busy to notice

Oh, as to the fate of the broken bird, It's home with me getting its wings mended. The damage was pretty extensive but far from fatal. I'll be testing it again and expect that I'll find the cause of the crash was the week precessing springs that tie the servos to the swashplate. The springs are slightly stiffer on my heli and that gives mine a control authority advantage. It's never been in an uncontrollable dive, but has come close. The springs are an absolute necessity for the cyclic system to function, but how stiff or loose can they be is subject to experimentation.

HHC

So many heli's - too little time...
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08-20-2008 02:05 AM  12 years ago
helicrack

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Yeah your'e the guy. I only saw your bird fly on Saturday night after the prizes like you said. Actually we were west of you on the flight line about 150 yards when we noticed something that sounded nothing like a heli that we had ever heard. In the golf cart we went and ended up about 40 yards to your left along with about 5 dozen other people that had made a semi-circle around you.

Sorry about the crashes and hope you get them back up and running soon. It was cool to watch.
".........said the joker to the thief"
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08-20-2008 02:09 AM  12 years ago
heli_headcase

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Thanks for the "Behind the butt" report. I'll get the little guy going again, I promised.

Something was lost due to the crash, the sound of two Whirlybirds flying at once. You think one sounded weird? Just try, and try hard, to imagine multiple spinning .40 nitros. Maybe in 2009 there will be 3 or more. Can always hope

HHC

So many heli's - too little time...
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08-20-2008 04:56 AM  12 years ago
krashtagain

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You the man I love those old birds and yes I was referring to thurs crash w/ the blue whirly . Did'nt matter top me at that point because I watched you fly the red white and blue whirly and it was awesome , thanx for the real life memories If you're not living on the edge you're just taking up space !
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08-20-2008 05:11 AM  12 years ago
heli_headcase

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Did'nt matter top me at that point because I watched you fly the red white and blue whirly and it was awesome , thanx for the real life memories
My pleasure. That's why I was there. You sound as if you owned one at some time. Right or not? Maybe saw one fly many years ago? It's the "memories" comment.

I'm assuming you've seen my youtube.com video of the 505 and my Du-Bro Hughes 300 in action. Easy to find if you missed out.

HHC

So many heli's - too little time...
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08-20-2008 05:29 AM  12 years ago
krashtagain

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Never owned one , but darn sure would like too I seen vids in the years past and always wondered what it would be like to see one fly in real life , it was awesome !!!If you're not living on the edge you're just taking up space !
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08-20-2008 05:39 AM  12 years ago
heli_headcase

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Keep your eyes open because they pop up at times. Be prepared to fight with chipped and warped gears though. Too bad mine was wobbling so much. Took part of the "charm" away in my opinion. But I'm glad you liked it. I think many did.
HHC

So many heli's - too little time...
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08-20-2008 05:43 AM  12 years ago
krashtagain

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I have had a very open mind about this hobby since the start of it in the 80's and to be able too look back today at the birds that pushed us to the limit we fly at today is simply amazing . I bet the szabo boys could'nt fly a whirly successfully . LOLIf you're not living on the edge you're just taking up space !
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08-20-2008 05:52 AM  12 years ago
heli_headcase

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You're about ten years off, started in late 1970 and I was watching closely.

'Tis a difficult heli to fly but far from impossible. The big problem is the unbalanced control response feel. The cyclic is like molasses in the winter, the tail is like lightning and the throttle is just right. My first flight in 2004 was uneventful, was on video and I had strapped a minor training dowel to the skids, just in case. Next flight was none 'nekkid', no training stuff. Got some nice still images on that one. Some are in my gallery.

HHC

So many heli's - too little time...
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08-20-2008 06:37 AM  12 years ago
krashtagain

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I was referring to my start in the hobby in the 80'sIf you're not living on the edge you're just taking up space !
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08-20-2008 06:48 AM  12 years ago
heli_headcase

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Oh, I understand now.
HHC

So many heli's - too little time...
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