OV-10 Bronco 81"
#852
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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.....
Considering the wing supports absolutely everything, I'd do spruce.....
#855
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-
-Les-
#858
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RE: OV-10 Bronco 81
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.
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.
#859
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!
#861
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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!
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!
#862
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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RE: OV-10 Bronco 81
about a million servo extensions,
#864
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.
#865
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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.
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.
#867
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
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
#868
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RE: OV-10 Bronco 81
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!
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!
#869
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RE: OV-10 Bronco 81
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
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
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
#871
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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
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
#873
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RE: OV-10 Bronco 81
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.
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.
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
#875
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.