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RE: OV-10 Bronco 81 - 7/1/2012 12:40 AM   
SteveD-RCU



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Status: offline 		Looked nice..a little longer approach might slower down some...nice job


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RE: OV-10 Bronco 81 - 7/1/2012 3:04 AM   
BadLemon



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Full flaps would be the next thing to try also on 8 cells you where getting some good speed out of it at 60% throttle have you tried 7 cells? This would remove some weight, also you said you where coming back with half packs maybe going down the 4000 packs would reduce some more weight as well. How high is your wing loading?

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RE: OV-10 Bronco 81 - 7/1/2012 2:00 PM   
gsmith6879


 

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quote:

ORIGINAL: SteveD-RCU

Looked nice..a little longer approach might slower down some...nice job

Steve,

You may be right but I've had the best luck with a steep approach and a flair right at the edge of the runway. This slows it down and usually results in a slower landing right in front of you. When we fly at Hatbox the full scale runways are so long I have a hard time judging where the imaginary edge of the runway is. The video was of the first flight of the day and I did get a bit better at hitting the mark that day.

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RE: OV-10 Bronco 81 - 7/1/2012 2:08 PM   
gsmith6879


 

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quote:

ORIGINAL: BadLemon

Gaines

Full flaps would be the next thing to try also on 8 cells you where getting some good speed out of it at 60% throttle have you tried 7 cells? This would remove some weight, also you said you where coming back with half packs maybe going down the 4000 packs would reduce some more weight as well. How high is your wing loading?

I keep coming back to using what works for me. I like having the extra power the 8 and 9 cell packs give me. The difference between a 5000mah pack and a 4000mah pack in the Zippy brand I am using is 4.5 ounces. That's 9 ounces total weight savings. Really not enough to see any difference on the landing speed. When I buy new batteries after these wear out I may go to 4000.

Wing loading with the 8cell pack is 45.38 ounces per square foot. The second underpowered Bronco came in at 47 ounces.

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RE: OV-10 Bronco 81 - 7/2/2012 5:01 AM   
CanDo


 

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Status: offline 		BTW, the reason some OV-10s tend to jump off the runway and try to climb out at a very steep angle initially is because the main gear is too far aft.

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RE: OV-10 Bronco 81 - 7/2/2012 7:49 PM   
WEBESNAG


 

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Status: offline 		Rich,
Are you selling the retracts for your 52" Bronco thru ScaleTech? Also, are there any mods to your plans after all the feedback from builders.
Thanks,
Steve

< Message edited by WEBESNAG -- 7/2/2012 8:10 PM >

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RE: OV-10 Bronco 81 - 7/24/2012 5:00 PM   
snortnrun


 

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Status: offline 		i noticed the problem on this tread about the canopies.i found this on utube
http://www.youtube.com/watch?v=KUl4WjD23Bk

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RE: OV-10 Bronco 81 - 7/24/2012 5:04 PM   
snortnrun


 

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RE: OV-10 Bronco 81 - 7/24/2012 6:46 PM   
gsmith6879


 

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Status: offline 		I do my own canopies and trust me, it is not that easy pulling a quality clear part. If you want to give it a try get this book. http://www.build-stuff.com/001book_vacuum_forming.htm

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RE: OV-10 Bronco 81 - 7/24/2012 6:50 PM   
snortnrun


 

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Status: offline 		yeh,i never tried doing it either,but these fellows keep saying they are sitting on their models waiting......well,maybe they could spend some time to learn something new.at least its better than waiting for hell to freeze over.....just saying

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RE: OV-10 Bronco 81 - 8/6/2012 3:51 PM   
Anasazi


 

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Status: offline 		Hi all,

I've just finished reading through the whole thread. I am thinking of building a Bronco myself, a typical scratch build. The problem is - do you happen to know where can I buy/ download some good CAD digital plans? All I've found up to now is a small CAD plan of Bronco made for 2x speed 400 and I could probably just scale it up to a nice 81 or maybe about 100 size plane, but would appreciate any help.


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RE: OV-10 Bronco 81 - 8/7/2012 12:34 AM   
AmishWarlord



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Status: offline 		Here ya go. Your not going to get CAD planes printed for much less.

http://www.airagestore.com/giant-bronco-ov-10-a.html

PS it's kind of in poor taste to ask on a form in which the guy that designed the plane in the first place, who reads and responds to threads about where to get free online copies of his work.

It's kind of like sending Nick Ziroli an email asking for a link to that guy on ebay that sells his plans for $3 on CD.



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RE: OV-10 Bronco 81 - 8/7/2012 8:32 AM   
Anasazi


 

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From: Ruda Slaska, POLAND
Status: offline 		I believie you've misunderstood me. I do not want to steal anyone's work. I am not a thief. I was just looking for some additional drawings or any info before building a Bronco. All plans which I can buy in USA have one problem - they are not designed to metric system. There is no way for me to find in Europe balsa etc which is dimensioned in inches etc.

Anyway - it looks like I'll stick to my electric plans. Just simply scale it up a little, add some addidtional ribs and spars and so on and it should be ok.

Thanks for your input.

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RE: OV-10 Bronco 81 - 8/7/2012 9:12 AM   
AmishWarlord



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Status: offline 		NP Anasazi sorry. I did misunderstand you.

Hey these are just model airplanes they don't have to have perfectly dimensioned wood.

Here is a fractional inch to mm chart.

http://mdmetric.com/tech/cvtchtfdm.htm

Just round off the mm stock you need

If the plan calls for 1/8" sheet use 3mm

Round lighter in low stress areas and round thicker in high stress areas.

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RE: OV-10 Bronco 81 - 8/8/2012 10:33 PM   
Black Drape



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Status: offline 		Hey Rich

If you are still monitoring this thread, I have a question for you. The folks at Model Airplane News do not have a copy of the construction article for this plane, and suggested you might have one. Is there any chance that you might, and if so could I possibly talk you out of a copy? Do we have any word about when we might expect to get canopys yet?

Thanks
Ron

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RE: OV-10 Bronco 81 - 8/9/2012 3:01 AM   
aeroscale


 

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Status: offline 		Hi Ron,
I'll try to scan the original M.A.N. article and make it available to those that need it as a pdf. file.
The canopy and other plastic part sourcing for the 81" version seem to be making progress. After any number of attempts at a variety of suppliers, I think I've found one that has the ability, interest and equipment to do them for me at a reasonable price. Should have samples within a week, fingers crossed. To all of you I've disappointed with delays, I apologize. Will keep you all posted.

Rich

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RE: OV-10 Bronco 81 - 8/9/2012 6:00 PM   
Anasazi


 

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From: Ruda Slaska, POLAND
Status: offline 		Just to make a short update - for $3 on eBay I've just bought 4 pdf files - plans for a 96" Bronco.

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RE: OV-10 Bronco 81 - 8/9/2012 6:07 PM   
WEBESNAG


 

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Hey Ron,
I found the OV-10 Bronco article here at work,
Think this is what you're looking for. If I could figure out how to upload a file. There we go.
 



Attachments
Click to see the file in new window.Attachment.pdf


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RE: OV-10 Bronco 81 - 8/9/2012 9:10 PM   
Black Drape



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Status: offline 		Hey WEBESNAG

Thanks for trying, but there was an error in the file, at least that is what my computer said. So i was not able to open it. Dang!!!

Rich that is great news about the plastic parts. I want to build the plane this winter so that should work out just fine.

Thanks Guys
Ron

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RE: OV-10 Bronco 81 - 8/10/2012 1:44 AM   
Wayne22



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Status: offline 		file downloaded just fine for me.....

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RE: OV-10 Bronco 81 - 8/10/2012 2:43 AM   
Black Drape



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Status: offline 		Hey WEBESNAG

Good news it opened fine for me this time. Thank you very much.

Ron

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RE: OV-10 Bronco 81 - 8/10/2012 12:28 PM   
WEBESNAG


 

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Ron,
I tried to open it and it opened for me.
That's for the 52" Bronco.
Anybody know anyone selling retracts for the 52"?



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RE: OV-10 Bronco 81 - 8/10/2012 8:23 PM   
aeroscale


 

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Status: offline 		Srping Air www.retracts.com

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RE: OV-10 Bronco 81 - 8/10/2012 8:29 PM   
WEBESNAG


 

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Thanks Rich.
That was an easy one.



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RE: OV-10 Bronco 81 - 8/10/2012 8:51 PM   
AmishWarlord



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Thanks WEBESNAG!

The file opened today.

I tried last night and only got a RCU blank page.




quote:

ORIGINAL: WEBESNAG

Hey Ron,
I found the OV-10 Bronco article here at work,
Think this is what you're looking for. If I could figure out how to upload a file. There we go.
 





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