Pitts S1-S by EMHW
10-21-2013, 12:41 PM
#601
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Robert, nice work. The plane is beginning to show it's size. Petty cool how you can turn a stack of wood into something that amazing and will fly. By the way the holidays are sneaking up on us. I hope your able to keep up the work.
10-21-2013, 01:12 PM
#602
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That thing takes up some serious real estate in your shop Robert. Looking better all the time ( that is, when you have any time for it.) I'm sorry, I certainly didn't mean to hijack your thread. Just making an observation. Now back to the BIG pitts.
10-21-2013, 10:04 PM
#603
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Robert, I like your attention to detail.
It's a very long story, I was born here, moved to Canada to seek political refuge when the russians invaded my country (1968) when I was very young (with my family) & basicaly returned to marry a Czech. Personal circumstances precipitated this decision. I was a little naive about the "Eastern block" social reality even 20 years after it's downfall. Cheers,V.
Last edited by vasek; 10-21-2013 at 10:11 PM.
10-22-2013, 07:24 AM
#607
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Thanks Vincent and your absolutely right, much smaller.
It's not much but the brass mounts have been cut and drilled for attaching to wing. When the epoxy is done anyways. They are not finished and won't be until I can mount the cabane up to it for precise marking of the cabane bolts to pass through. Then it will get drilled and shaped. This bracket not only holds the wing to the cabane but also holds flying wire's.
It's not much but the brass mounts have been cut and drilled for attaching to wing. When the epoxy is done anyways. They are not finished and won't be until I can mount the cabane up to it for precise marking of the cabane bolts to pass through. Then it will get drilled and shaped. This bracket not only holds the wing to the cabane but also holds flying wire's.
10-22-2013, 08:50 AM
#608
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Robert, after seeing your last pic of the wings pieced together I was wandering where the strength would come from because they didn't look as strong as I would expect. So the added strength are in the cabanes and cable wires right?
10-22-2013, 09:57 AM
#609
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Squirrly,
The upper wing is attached via the cabane to the fuse, and the struts to the lower wing. The lower wing bolt's to the fuse with a wing tube through the middle and a rotation dowel. I don't think strength is an issue, but the flying wires add more to it. The wires are functional as well. All that being said, is why I wanted a trailer big enough to not have to disassemble this monster.
The upper wing is attached via the cabane to the fuse, and the struts to the lower wing. The lower wing bolt's to the fuse with a wing tube through the middle and a rotation dowel. I don't think strength is an issue, but the flying wires add more to it. The wires are functional as well. All that being said, is why I wanted a trailer big enough to not have to disassemble this monster.
10-22-2013, 10:06 AM
#610
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I am attaching the wing mount plate with threaded inserts. For those that don't know it, they are not meant for hardwood and the insertion lugs will break off. Unless one finds a way to alleviate the load on the lugs. Here is how I install them into hardwood, in this case ply. Pic #1 I make a dimple. Pic #2 Using a hardwood block as a guide, holding firmly in place with the bit in the dimple, drill thru the hardwood. Pic #3 is how to insert and keep alignment. I use a socket head bolt, in this case 6-32, and nut. Screw the bolt, with the nut, through the insert with enough out the other to guide it into the hole straight. Tighten the nut to the insert and it's ready to install. Almost forgot, I drilled two holes, the first the diameter of the bolt And the second the diameter required for the insert but only deep enough for the insert. Pic#4 screw in until the nut is flush, insert installed, holding the bolt turn the nut 1/4 turn and remove bolt. Pic#5 perfect inserts into hardwood without broke lugs. I also added polyurethane liquid glue to the inserts.
Last edited by acerc; 10-22-2013 at 10:13 AM.
10-22-2013, 11:59 AM
#612
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Squirrly,
The upper wing is attached via the cabane to the fuse, and the struts to the lower wing. The lower wing bolt's to the fuse with a wing tube through the middle and a rotation dowel. I don't think strength is an issue, but the flying wires add more to it. The wires are functional as well. All that being said, is why I wanted a trailer big enough to not have to disassemble this monster.
The upper wing is attached via the cabane to the fuse, and the struts to the lower wing. The lower wing bolt's to the fuse with a wing tube through the middle and a rotation dowel. I don't think strength is an issue, but the flying wires add more to it. The wires are functional as well. All that being said, is why I wanted a trailer big enough to not have to disassemble this monster.
10-22-2013, 03:59 PM
#614
Sweet! That's a good idea on the inserts. I had a bit of a time getting mine to go in straight on the Cub cowl mounts. I'll have to see if I can remember that the next time I do it.
Take care,
David
Take care,
David
10-22-2013, 06:23 PM
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Thanks David. Spent the evening laying out the electronics. Using a power expander with dual batteries plus a separate battery for ignition takes more room than usual. But with the size of this bird it is no problem. Also using an engine kill that only connects to the receiver via a fiber optic cable, real nice set up. The telemetry is going to be a nice (extra) feature I think. But I have decided at least for now I am not going to install the Guardian (pilot assist), I have been reading of late people having problems with it.
Last edited by acerc; 10-22-2013 at 06:26 PM.
10-22-2013, 08:20 PM
#616
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looking good ACE! I have been lurking keeping quit!
since I came here too peek on your build, I ended up rejoining, as I think I did years ago then forgot my log in, but I found a home for my 50cc for now, a guy here had a 27% extra same as I crashed, so had too rejoin so I could get ahold of the guy and buy it!
so it is kinda your fault, as I wouldn't have been frequenting this place, if not for your build!
anyway looking good!
since I came here too peek on your build, I ended up rejoining, as I think I did years ago then forgot my log in, but I found a home for my 50cc for now, a guy here had a 27% extra same as I crashed, so had too rejoin so I could get ahold of the guy and buy it!
so it is kinda your fault, as I wouldn't have been frequenting this place, if not for your build!
anyway looking good!
10-22-2013, 10:41 PM
#617
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Thanks, Vasek
10-23-2013, 04:03 AM
#619
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Welcome back Whisky and no need for lurking.
Vasek there is no one thread, just several people in different places mentioning the same issue. That is enough to give me pause. I have emailed Eagle tree regarding my concern of such said issues, we'll see what they have to say.
Thanks Vincent, looking to cover in January.
Vasek there is no one thread, just several people in different places mentioning the same issue. That is enough to give me pause. I have emailed Eagle tree regarding my concern of such said issues, we'll see what they have to say.
Thanks Vincent, looking to cover in January.
10-23-2013, 06:13 AM
#621
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Thanks for the info Robert, please post here what Eagle Tree will respond to your enquiery, I was really getting my hopes up for this product as I am not the greatest of pilots...
Cheers, V.
Cheers, V.
10-23-2013, 06:32 AM
#622
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Will do Vasek. From what I have read it might be more of a user program issue than a fault of the device. But with a 8K dollar model I am not willing to risk it with something that is not a necessity. I do like what if offers and think it would be a cool feature but "cool" is not worth the risk, if there is any.
Also for your viewing pleasure, here is a link to Eagletree's support forum http://www.rcgroups.com/eagle-tree-systems-443/ enjoy.
Also for your viewing pleasure, here is a link to Eagletree's support forum http://www.rcgroups.com/eagle-tree-systems-443/ enjoy.
Last edited by acerc; 10-23-2013 at 06:37 AM.
10-23-2013, 07:14 AM
#624
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I keep having to pinch myself, as this is far beyond anything I have built for myself. I drooled over it to start with but had to quit, the wood could not take the moisture and was warping.