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OV-10 Bronco 81"

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Old 01-05-2012, 12:36 PM
  #851
jbarnes
 
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Default RE: OV-10 Bronco 81

Thanks Gaines.
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Old 01-05-2012, 05:04 PM
  #852
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Default RE: OV-10 Bronco 81

I just re-read the magazine article..- MAN Feb 2001 - no mention of what material the spars are made out of...in fact the spars are hardly mentioned at all....
Considering the wing supports absolutely everything, I'd do spruce.....
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Old 01-05-2012, 05:10 PM
  #853
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Default RE: OV-10 Bronco 81

Plus 1 on the spruce spars. Little difference in weight but many times stronger than balsa.
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Old 01-06-2012, 06:21 AM
  #854
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Default RE: OV-10 Bronco 81

I Sent a PM to Rich U. about this question I'm sure he will reply soon.
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Old 01-06-2012, 07:32 AM
  #855
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Default RE: OV-10 Bronco 81

Gentlemen, for what it's worth, I put spruce spars in my wing. My plane is ~19 lb RTF (some are a little heavier), so I don't regret using spruce. BTW, my 3 piece wing was ~1 oz lighter than the ARF's one piece wing! You can still order spruce sticks from Aircraft Spruce if you need some. Hope that helps.
-Les-
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Old 01-06-2012, 11:16 AM
  #856
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Default RE: OV-10 Bronco 81

Quote:
Wanted: Smarter thumbs...
....that is a good one!


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Old 01-10-2012, 03:09 PM
  #857
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Default RE: OV-10 Bronco 81

Ask Rich about the canopy availability when you talk to him Bad Lemon. Just finished my twin trainer then I'm getting back to the OV-10.
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Old 01-10-2012, 04:31 PM
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Default RE: OV-10 Bronco 81


Quote:
ORIGINAL: jbarnes

Ask Rich about the canopy availability when you talk to him Bad Lemon. Just finished my twin trainer then I'm getting back to the OV-10.
Great looking trainer. What engine and brand of props. I'm still looking for props for my electrified Bronco.
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Old 01-11-2012, 01:18 PM
  #859
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Default RE: OV-10 Bronco 81

Its a AMR Twin Stick with DLE55's on it with Beila Props. The kit is made for 30's but since I fly at 6K feet I need extra power. This Bronco was suppose to be something simple for me to use up some of my stash of balsa after finishing the Twin Stick. Before you know it you got another big project, $600 worth of retracts, $500 worth of motors and about a million servo extensions, just to use up $40 of scrap balsa. Pretty typical of my thought process!
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Old 01-11-2012, 02:57 PM
  #860
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Default RE: OV-10 Bronco 81

jbarnes,

Very impressive Stick! Would love to see/hear it fly!
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Old 01-11-2012, 08:26 PM
  #861
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Default RE: OV-10 Bronco 81

jbarnes

I'm surprised Rich hasn't chimed on yet I'm sure he will soon. Nice stick! I never seen a twin stick before get some video to post. I learned first hand what thin air does at 6000 feet, I attended the Mile High NHRA Nationals for the company I worked for years ago. I was setting in a chair and stood up to greet a customer next thing I remember I had a EMT holding a compress on the back of my head I ended up getting 4 stitches in my skull!
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Old 01-12-2012, 11:22 AM
  #862
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Default RE: OV-10 Bronco 81

People don't realize how bad altitude sickness can affect a person. Every year we have folks coming to the mountains from sea level attempting to climb Longs Peak and die due to altitude sickness. At our altitude we lose 25% of our power and have to prop up due to thin air. Now on the bright side we average 10% humidity too! Jerry.
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Old 01-12-2012, 06:02 PM
  #863
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Default RE: OV-10 Bronco 81

Quote:
about a million servo extensions,
You can save a bunch of extensions and connections if you put a receiver in each boom....like flying 2 airplanes in very close formation...
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Old 01-13-2012, 06:55 AM
  #864
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Default RE: OV-10 Bronco 81

Hey Wayne, I thought about that but I use the JR failsafe receivers which are $150 each. Figure I'd just throw more extensions at the problem instead of spending the money on multiple receivers and four batteries. I've got the main fuse complete, working on the nacelles then its on to the wing. Jerry.
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Old 01-15-2012, 03:13 PM
  #865
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Default RE: OV-10 Bronco 81

I was able to get the nacelles on my new Bronco completed last week and have started on the wing. I was pleased with the weight of the nacelles. I will probably do a bit more rounding after I fit the cowl but it is about done. I weighed the nacelles and at this point with the rudder but no servos or cowling one weighs 24.8 ounces and the other weighs 23.7 ounces.

The wing is being built on a board using jigs to align the ribs and other parts. The photo shows the wing with the first sheeting completed.
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Old 01-15-2012, 03:44 PM
  #866
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Default RE: OV-10 Bronco 81

I like your work counter there gsmith. Haveing the elec. outlets out on the edge must be really nice. Drapeing cords over your work gets old!
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Old 01-15-2012, 06:33 PM
  #867
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Default RE: OV-10 Bronco 81

Hi guys,
The spar material for the Bronco should be whatever makes you comfortable. The original model used hard balsa, subsequent versions, bass or spruce. More important than the type material, from a strength standpoint, is the is the importance of good wood to wood joints and strong adhesive. Think of the wing structure as a system with each element dependent on the next for integrity and overall durability. I have never had, or heard of, a wing failure of my Bronco design despite some highly aggressive power systems being used or very
Chime done...........
Rich
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Old 01-15-2012, 07:07 PM
  #868
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Default RE: OV-10 Bronco 81


Quote:
ORIGINAL: AmishWarlord

I like your work counter there gsmith. Haveing the elec. outlets out on the edge must be really nice. Drapeing cords over your work gets old!
Thanks for noticing the shop. I retired about 12 years ago and my wife told me to build what I wanted. I think she was trying to get me out of the house:-)
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Old 01-15-2012, 07:12 PM
  #869
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Quote:
ORIGINAL: aeroscale

Hi guys,
The spar material for the Bronco should be whatever makes you comfortable. The original model used hard balsa, subsequent versions, bass or spruce. More important than the type material, from a strength standpoint, is the is the importance of good wood to wood joints and strong adhesive. Think of the wing structure as a system with each element dependent on the next for integrity and overall durability. I have never had, or heard of, a wing failure of my Bronco design despite some highly aggressive power systems being used or very
Chime done...........
Rich
Rich,

Thanks for the information and the great design. I used 3/8" basswood on my first 2 Broncos and 1/4" with a lot of balsa shear webs on the new one. Aggressive power systems??....well you just knew we were going to overpower this Pony!!!

Gaines
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Old 01-15-2012, 07:18 PM
  #870
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Default RE: OV-10 Bronco 81

Does anyone know if Rich has begun selling the plastics yet
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Old 01-16-2012, 09:59 AM
  #871
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Default RE: OV-10 Bronco 81

Last update from Rich was he thinks he has a new vendor so he should be able to release new parts in the near future. FYI "aeroscale" is the man him self!


This was his comment on post# 795


All,
Thanks for the kind words, they're much appreciated.
The plastic parts for the Bronco problem may have resolution. I am awaiting samples from a new vendor to check the quality and, if all goes well, parts for my Broncos and other designs should be available in the near future. Thanks for your patience and understanding.

Rich








Doug
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Old 01-16-2012, 10:09 AM
  #872
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Default RE: OV-10 Bronco 81

Does anybody know when Rich will release the big bronco? Two years ago I talked to him about it and he said very soon. Still waiting.
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Old 01-16-2012, 11:24 AM
  #873
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Quote:
ORIGINAL: wayne d

Does anybody know when Rich will release the big bronco? Two years ago I talked to him about it and he said very soon. Still waiting.
wayne d

This is what Rich said about the 109" Bronco back on post# 803 a few pages back....



BadLemon,
You're right about the 109" version being more scale than the previous two, smaller sizes. In fact, the 109" is a totally different airplane with scale airfoils on both the horizontal and vertical tail surfaces. The canopy was lofted in 3D CAD and the file used to MasterCam a mold from appropriate material. As I mentioned, molds were also made for the cowls, nose and rear caps from which fiberglass parts may be produced. All I really need to do now is to finalize the drawings.
As far as flying similarities; the big one flies even better than the 80"! Both my electric and gas versions fly like "cruisers", very stable, predictable and with no quirks at all. As a matter of fact, I loaned my tan camo electric to Sean Curry and he really dazzled the spectators at Monster Planes; most found it hard to believe that it was electric powered. With the cost of electric motors, ESC's and batteries continuing to come down, large electric twins are becoming quite practical as R/C models. What was really cool though, was the sound......not quite turboprop but way quieter than gas.

Rich
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Old 01-17-2012, 07:00 PM
  #874
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Default RE: OV-10 Bronco 81

Got the wing framed and sheeted...mostly today. Put the completed parts together to see how she looks. Funny looking with out the nose and tail cone and the canopy but worth the effort.

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Old 02-06-2012, 12:52 PM
  #875
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Default RE: OV-10 Bronco 81

Any of you heard from Rich on plastics yet? I've got my booms and fuse done and I really need a canopy. Not to anxious to start on the wing if I'm never going to see a canopy.
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