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Old Aug 26, 2012, 03:30 PM
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Yf 23 build log

This will be where I build the yf 23. I should have done it here to begin with.

YF 23 Variants Here http://api.viglink.com/api/click?for...13556311114062

Build Starts here http://static.rcgroups.net/forums/at...g?d=1348611769

Cg Overlay http://static.rcgroups.net/forums/at...g?d=1346295587

http://static.rcgroups.net/forums/at...g?d=1346313609

Stabilation system http://api.viglink.com/api/click?for...13556203514902

http://www.rcgroups.com/forums/showt...dian+eagl+tree

Glass Air Allen thread http://www.rcgroups.com/forums/showt...23#post5375468

Electric Retracts
http://api.viglink.com/api/click?for...13556208771984
http://api.viglink.com/api/click?for...13556208013843

Retract Mod http://static.rcgroups.net/forums/at...G?d=1346724716

Unidirectional Carbon http://api.viglink.com/api/click?for...13556213655852

http://api.viglink.com/api/click?for...13556214335465

Beacon Glue http://api.viglink.com/api/click?for...13556220411592

PDF Files http://www.rcgroups.com/forums/showa...3&d=1348415457

http://www.rcgroups.com/forums/showa...5&d=1348418662

http://www.rcgroups.com/forums/showa...7&d=1348460113

http://www.rcgroups.com/forums/showa...5&d=1348426835

http://www.rcgroups.com/forums/showa...7&d=1348426880

http://www.rcgroups.com/forums/showa...6&d=1348426856

Wing Plan PDF http://www.rcgroups.com/forums/showa...3&d=1349133733

http://www.rcgroups.com/forums/showa...4&d=1349133733

Matt Board for formers http://api.viglink.com/api/click?for...13556228580552

Tail Planview PDF http://www.rcgroups.com/forums/showa...7&d=1349327353

Tail template PDF http://www.rcgroups.com/forums/showa...8&d=1349327353

Wing Planview PDF http://www.rcgroups.com/forums/showa...9&d=1349327353

Wing Template PDF http://www.rcgroups.com/forums/showa...0&d=1349327353

Page 27 for Intake's and Exhaust PDF

Budjet Vac forming Supplies http://api.viglink.com/api/click?for...13556273600892

Budget Resin http://api.viglink.com/api/click?for...13556276309535
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Old Aug 26, 2012, 03:36 PM
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yf23

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Next Build 6ft YF 23
I been wanting to try my luck at getting the yf23 to fly for a long time. I will be starting this build soon. I need to finish off rebuilding my 70mm HET F18 then onto this. It will be for 2-90 mm CS12 blade fans and it will be getting retracts it will be just shy of 6ft. Going to use the composite/foam sandwich for the construction. I might build it in my blog that way I can keep the unwanted trolls out or atleast delete them from my sight seeing as the mods or mod is bias in my opinion. And the administrator would not even reply back to my appeals in the last squabble. Its kind of funny but when I was suspended I noticed how quick one of the persons was to jump in all the threads I post in and try to justify that I was trying to get thrown out, funny I have never spoke to the person in my life. I think he was the mod who is bias or possibly a person using two different user accounts, because when I looked at how many miles he was from me, It was funny he was only 5 miles further than the other person who I had a pissing match with a month before this last squabble. But I have no way to tell if they are one and the same person. Well that's old news and I willl be getting on with my build soon. I also just come across a small mill which sells for $700 bucks picked it up for $100 and it has never been used. I just need a couple of wheels to move the table which must have been damaged when it was shipped. I have cleaned it up and have plugged it in and it works so I think it was a steal for the money. It is a small hobby mill but Im sure it will do ok for making small parts and stuff.
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Last edited by unclecrash; Aug 21, 2012 at 09:47 PM.
Aug 21, 2012, 11:18 PM
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Kevin Cox
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Cool...I have this one on my list too.

Aug 22, 2012, 12:08 AM
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Looks like a nice build. I probably will still be working on my F-86F when your finished I had started to do a replica of the Y/A Starfire last year, till the Sabre bug bite me. With all the "foamys" being built here, I think the Starfire will end up a foamy too. So much faster to build.

Aug 22, 2012, 08:45 AM
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kingkyle
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Love the YF-23, I built a quick dirty 6ft tall one. It flew great! the issue is getting vertical stabs secure and strong. They flex alot under the weight. Lots of wobble
huge pink foam YF-23 EDF (0 min 55 sec)


Aug 22, 2012, 09:14 AM
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cool beans, looking forward to build pics.

You finish the chameria yet?

Aug 22, 2012, 12:23 PM
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Quote:
Originally Posted by kingkyle
Love the YF-23, I built a quick dirty 6ft tall one. It flew great! the issue is getting vertical stabs secure and strong. They flex alot under the weight. Lots of wobble
huge pink foam YF-23 EDF (0 min 55 sec)

Cool is there a build thread on it? Where was the balance at compared to the 4 view drawing? Im going to use bearings and beef it up with glass and carbon and use them as ruddervators like they were intended.

Aug 22, 2012, 12:28 PM
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Quote:
Originally Posted by D_FAST
cool beans, looking forward to build pics.

You finish the chameria yet?
It will be a slooow build Chimera is done I need to get four wheels for my dolly that im going to try and launch it from. I looked at all the local stores and cannot find the lite weight plastic wheels I am looking for so will have to order them online. I actually have 2 planes that are awaiting there maiden. No hurry I figure the longer they sit the longer they will stay in one piece

Aug 22, 2012, 05:26 PM
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Janusz Jawien
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Hi kingkyle,
Would you please be so kind and give us more detail abpout your YF-23.? I build several large F-22 but in pusher configuration, I am thinking of getting one with 90mm fan - there is
nothing like nice jet sound!
Any detail regarding the power set up or CG would be helpful!
Thank you in advance!
Janusz

Aug 23, 2012, 01:57 AM
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Lt599
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Should be an awesome build! When you say composite/foam sandwich do you mean foam covered in FG/CF? I am considering a twin 70mm F18 Super Hornet build and that is the type of construction I have been thinking about, so it will be nice to see your construction method. Lt599

Aug 23, 2012, 07:09 PM
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Yes it will be glassed inside and out. Its not my method, its Claus I believe who started this type of construction. It will be hot wire cut, sections glued to make one half over the side view, then sanded and glassed inside,then make second half and so on.

Aug 23, 2012, 09:08 PM
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Waltjg
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Ok Unc,very cool project, so when are you going to start? w

Aug 23, 2012, 09:12 PM
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AIR SALLY
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keep every thing close to the front ...your not going to believe where you need the CG to be ....and dont mix rudder to the tails ....there have been a few of these fly ....but it has to be set up right. do a serch there were some threads way back

Aug 23, 2012, 10:33 PM
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p901P901
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YF-23 drawings
Drawings are here: http://up-ship.com/blog/?p=5641

Aug 24, 2012, 12:18 AM
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Man I really don't want to pay for the drawings,but my 4 view only has 16 stations this one has 21 I might just have to and start again

Aug 24, 2012, 12:31 AM
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Old Aug 26, 2012, 03:39 PM
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yf23

Quote:
Originally Posted by unclecrash
Man I really don't want to pay for the drawings,but my 4 view only has 16 stations this one has 21 I might just have to and start again
Best I can do right now
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Aug 24, 2012, 03:10 AM
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Have you tryed to print from the pdf or the other 2 views you posted? I think he has it setu where you cannot print them. I tryed both the pdf and the 2 view and it willnot print. I even saved it to my puter of the site and same thing no go.

Aug 24, 2012, 03:21 AM
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Quote:
Originally Posted by AIR SALLY
due to the shape you'd be better off with more sta. cuts .
Ya I know thats why I was hoping someone had bought a copy and was willing to share it. I have tryed saving the 21 station copy to my puter and tryed the pdf that p901 posted but the guy who has the rights to sell it must have some sort of lock on the copy he posted on his blog site that is forsale neither will print out it goes through the printer like its printing but nothing on the paper. I used the 4 view with 16 stations and saved it to my puter and printed it out. The sections on the 8x11 were about an inch square,so I put that through my scanner at 400% and was surprized it look really good when it printed. Then I resized it again by 250% to get the drawing I have

Aug 24, 2012, 04:07 AM
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p901P901
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They were really large files caused lite line weights. I cannot convert. Probably these will help.
Attached Files

formers.pdf (913.2 KB, 38 views)

fuselage.pdf (1.28 MB, 29 views)

Aug 24, 2012, 08:44 AM
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UncleCrash
let me know if you want more stations/cuts i have a pretty accurate 3d model on my hard drive

Just get me a wingspan,edf size, and spacing you'll require

I can offer to vectorize those pdf's as well, this will allow a lot better resolution and prints

Last edited by D_FAST; Aug 24, 2012 at 08:49 AM.
Aug 24, 2012, 02:06 PM
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What ever would be the easiest D Beggers can't be chosey. If I could get the 21 station to print out I would be more than greatful. Im wanting to do it for twin 90mm CS 12 fans.and any where from 85%FSA at the inlets up to 100% Right now with my model Im at around 85% or so I hope if I calculated correct. It is 69.75in. thats the side view front tip of nose to the tip of the elevons. Wing span is 43.5in. As far as stations go foam after sanding the plastic crap is about 1-15/16in and if there was a station at that measurement or at 3-7/8in for 2 pieces laminated together there would be around 30 or so stations at 1-15/16 But I have no Idea how hard it is to make it happen. Even if you could use your better judgement and put the stations at the 1-15/16 at the are'a like the canopy and the area's that would need more stations to get an accurate part cut would be great. Either way would be fine with me. I was just going to try andd hand draw them like I used to using measurments off wwhat I have printed out. And ad a few more stations where they would be needed. So if you can resize it to make it work better to FSA with extra stations or do the vector deal and make it where I could print it. Or add a few more stations to the 21station that P901 had shared and vector. I do have a cool program that I can tile it in seconds that I found on the net. I do not care if the size is bigger to get the FSA proper your the CAD man Im dumb founded when it comes to that but I can build a nice model. Or let me know what you think and we can decide from there. Thanks Dave

Aug 24, 2012, 05:23 PM
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kingkyle
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Quote:
Originally Posted by Janusz Jawien
Hi kingkyle,
Would you please be so kind and give us more detail abpout your YF-23.? I build several large F-22 but in pusher configuration, I am thinking of getting one with 90mm fan - there is
nothing like nice jet sound!
Any detail regarding the power set up or CG would be helpful!
Thank you in advance!
Janusz
Mine was 6ft long with I think a 42 or 44" wingspan. I made the "rudder-vaters" much larger then in the picture below. It flew perfect, if I were to do it again I would keep the 90mm EPF all alloy edf out in the air, the thick foam really kills power.

The way I build jets is really simple, I take a scale 3 view drawing from the internet and project the image from my home theater projector on my home depot foam thats temporarily taped to my movie screen, trace the projected lines. Then cut the shapes out. I can scale the image to any size I want because projectors can scale the image to just about any size. I would never go back to printing large scale at staples and cutting everything out. They sell cheap projectors now at best buy for like $150.

When I get home i'll find out where my CG is and ill post more pics

Here is a pic of the basic shape before I cut ailerons and rudder-vaters.
This image has been resized. Click this bar to view the full image. The original image is sized 1024x768.

drawing I used


Aug 24, 2012, 05:47 PM
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unclecrash, You said you had a problem printing from PDF? Don't know if you do it this way, but where it says EDIT VIEW etc on top left screen , select edit, then snapshot , drag your cursor to spot you want to enlarge, left click to highlight area, then click print . Elarge to what ever %.

This works great, this is how I enlarged the PDF for my F-86F. Takes alittle time get it it the way you want, that is scale size. Suggestion, pick a part of plans that small at first, then its trial and eror to get the % enlargement you want. Took me awhile on mine, but finally got it the right size. Have lots of paper and extra ink cartridge.

Aug 24, 2012, 06:54 PM
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Quote:
Originally Posted by CoolerByTheLake
unclecrash, You said you had a problem printing from PDF? Don't know if you do it this way, but where it says EDIT VIEW etc on top left screen , select edit, then snapshot , drag your cursor to spot you want to enlarge, left click to highlight area, then click print . Elarge to what ever %.

This works great, this is how I enlarged the PDF for my F-86F. Takes alittle time get it it the way you want, that is scale size. Suggestion, pick a part of plans that small at first, then its trial and eror to get the % enlargement you want. Took me awhile on mine, but finally got it the right size. Have lots of paper and extra ink cartridge.
I only have evaluation copies of adobe 10.1.3 and foxit reader I have tryed like you said but I do not see where I can enlarge the piece im highlighting I printed it and I still get nothing but a few little ink spots. I can enlarge the 16 station 4 view copy I have but this one P901 has posted is one you need to buy from a guy who has the rights to sell it. Like P901 says its huge and Im thinking that might be why I cannot get it to print. Try and see if you can print one page off it. Out of all four pdf's P901 has posted I cannot get any to print. I can copy them and look at them in my adobe and foxit but I cannot print from them. Its either because I don't know what im doing or because like P901 says they are light lined and huge or the guy with the rights to them has a lock or something to keep me from printing them. Ive wasted about a dozen sheets allready. If someone could see if the pdf's P901 will print for them I will keep trying.

Aug 24, 2012, 07:35 PM
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Quote:
Originally Posted by D_FAST
UncleCrash
let me know if you want more stations/cuts i have a pretty accurate 3d model on my hard drive

Just get me a wingspan,edf size, and spacing you'll require

I can offer to vectorize those pdf's as well, this will allow a lot better resolution and prints
D Fast those pdf files I cannot even get to print even after tileing them I think they might be locked or something. The guy who has the rights to them sells them. I have tryed about 12 different ways to print with no luck. I don't want you to waste your time working on them and find out we cannot print them out. My printer will print the 8.5x14 and I can tile the pdf if you can use your 3d drawing and put me enough stations to make it easier to get good results. You know the foam is 2 inch thick which would make it the easiest to do the stations at if you think that is close enough. Or I can double it to 4inch if you think there is any area's that it would work out. See post 21 also. Or if you think there is need for stations in area's that need to be closer than 2inch I can hotwire smaller blocks. What ever is easier for you.

Aug 24, 2012, 08:38 PM
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Janusz Jawien
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Hi kingkyle,
Thank you so much for the info! Quick and dirty job but this thing flies just right for my age
and reflexes! And the sound is just fantastic especially if you compare with large pusher prop. This project will be definetely on my list!
Janusz

Yesterday, 01:25 AM
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unclecrash, well I did get one to print with no problem, BUT. I took one of the small formers , just enough to fit 81/2x 11 paper, they are so pixelated, even at that size, to be un-useable. Sorry.

I like a challange, I'll mess with them and see what happens. I have an idea, don't know if it will work though.

Yesterday, 01:50 AM
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CoolerByTheLake
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unclecrash, Question, on the Adobe, is the 10.1.3, the Adobe Reader? whats the foxit reader for?

Yesterday, 01:57 AM
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Ya I have the 10.1.3 adobe, the foxit is a nice program just like adobe.

Yesterday, 02:02 AM
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Quote:
Originally Posted by CoolerByTheLake
unclecrash, well I did get one to print with no problem, BUT. I took one of the small formers , just enough to fit 81/2x 11 paper, they are so pixelated, even at that size, to be un-useable. Sorry.

I like a challange, I'll mess with them and see what happens. I have an idea, don't know if it will work though.
Ya thats what I tryed doing just one former I might have had it a bit to big when I highlighted it. That pdf file is huge over 100 inches who knows maybe D Fast can use the vector to get it to work and print better. I even went to 8x14 paper and it was just putting dots on the paper. Do you have the adobe you purchased or are you using the same one I was trying. Whats funny is I was using a tiny former 1x1 inch and blew it up with my printer/scanner 650% and it looks pretty good.
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Old Aug 26, 2012, 03:43 PM
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Yesterday, 10:44 AM
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D_FAST
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I got up to section H traced out. After comparing my 3d model to the prints its not as acurate as i thought. So ill be tweaking it now as well.
But ill stay concentrated to just vectorizing the prints.

The mailman bringth me some goodies yesterday, So I really need to get the bottom glassed on my build, so i can get the goodies installed.

my internet isnt letting me upload atm, got to make a phone call.

Yesterday, 03:14 PM
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Cool take your time Im in no hurry. We have been having problems with our internet also about 8pm it goes down on and off till morning just had it fixed they brought a bunch of new stuff. http://t2.gstatic.com/images?q=tbn:A...ptvS7DYx3x&t=1

This is the 16 station one I used but it was a mess trying to do it like I did.

Yesterday, 06:43 PM
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unclecrash, this is the Adob reader I have. first link, should work , if not try second, look for downloads, right hand side of page. Free.


http://get.adobe.com/reader/?promoid=BUIGO

http://www.adobe.com/

Yesterday, 07:10 PM
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I wonder why my 10.1.3 is 110mb and the 10.1.4 is 48mb

Yesterday, 07:41 PM
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Might be a compressed file. Mine is actually the 10.1.3, this is just newer. About a month ago the print part was screwing up, so I thought I would just uninstall and the re-install new one. It would not let me uninstall the program.
Tried everything, website after website for a fix to problem. Only thing that worked, and worked very well was Microsoft
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Old Aug 26, 2012, 03:46 PM
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yf23

I'am not picking sides here one way or the other, but here's my 2.

There are some builds that you can get by with a real good 3-4 view drawing. I looked for almost a month for anything detailed for my F-86F. Not much out there, found a half-A$$ 3 view with only 6 stations. Just by luck, the thread I was following, a gent form Germany posted a great PDF with 27 stations.

The F-86F isn't a complex fuse by any stretch, now on the other hand the new jets have so many complex curves, that the more stations the better. I'm a detail freak, so if plans or drawing were avaliable at a reasonable price, I'd snap them up.

I have looked at the drawing in question, $7.00 isn't bad, IF the quality of the print is far superior to whats on the site, and lends itself well to enlargement.
Now if it were avaliable in a rolled full sized print, that's another thing. But to download it and print it to the scale in question, I think all definition would be lost, the lines would be as thick as your finger. Not much use it that. I'm done.

Today, 01:56 AM
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I probably would have bought the plans if I didn't have the four view already. But after P901 posted them and I saw how they would'nt print. I wasnot about to spend any amount on a gamble that I could print them. And like cooler said chances were I would have to do a whole lot of sizing myself to get them to the size i wanted. Ive been waiting it seems like forever for a good 4view of the yf 23 one of my favorite jets. These guys selling plans know first hand that people are going to share there plans with friends and people in the forums. So knowing this why even bother selling them if your going to complain about it.
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Old Aug 26, 2012, 03:50 PM
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If I am going to get some plans, drawings, 3-4 views, and you get them free, here's no room to complain. If there is a fee incured, my first concern is quality.
Now for the most part, rolled plans or drawings are inked well and reduction is no problem, depending on scale enlargement can be!

I would truly be concered with a downloaded drawing of this great size. I have had original plans, commercialy enlarged. What was once a fine line, became very thick. It's one thing to make copys of an original, but so many make copies off of copies. It's like telling a joke to a group of people. Tell it to one, and one at a time each tells it to the next. By the time it gets back to you, it barely recognizable. Same with copies.
Even at $7.00, I would have passed, quality doesn't seen to be there.

Today, 08:27 AM
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editied

Last edited by D_FAST; Today at 09:39 AM.
Today, 08:53 AM
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Kevin Cox
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You guys are ruining what looked like a start to good build thread.
What you are posting about now has been beat to death in other forums and no one has ever swayed the others to see it their way, or even understand it.

Lets just build guys!

Today, 09:38 AM
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D_FAST
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1153 miles from you in
Denver CO
Joined Apr 2008
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Your right Kevin, Edited my post

Some progress on the drawings,
Let me first say its a pain, as these prints are really low resolution, Im cross referencing them to my model and other drawings and pics to help bring in the detail that just isn't there.

these will look pixalated, as there rastorized images of the vector artwork.

Ill release the post script files and and try my best to tile the pdf as well as offr them in full sheet size.

But for now, its back to the shop to sand that glass work I laid up yesterday.
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there is an error in this pic. can you find it?
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Old Aug 26, 2012, 06:24 PM
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Keep up on the build unclecrash. Will enjoy seeing this.
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Old Aug 26, 2012, 08:01 PM
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I will do,need to finish my het f 18 rebuild I just have the tailerons to finish.
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Old Aug 26, 2012, 10:27 PM
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error

I think I see the error DFast is talking about. Would it be the first so many formers are on the wrong center line?
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Old Aug 27, 2012, 08:31 AM
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yea that was one i didnt see, there is a former were the center line is offset side to side as well. All fixed now. so how am i to post any pics/updates now?
Shall i continue?

Edit: I see i still can on advanced. Wasn't sure in blogs
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Old Aug 27, 2012, 09:53 AM
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Looking good DFast I probably will build it like Claus does with a hollowed out shell where I can build ducts out of glass and build it in halfs over the side view plan. If you kept it at the size I posted you will notice the holes for the ducting where they round up are only at about 84 or 85mm so the fans won't fit, but will not matter with a hollow shell. It looks like you made the stations at the 2in apart which will make it a breeze to cut formers. And with all the stations should make for a nice accurate model.
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Old Aug 27, 2012, 11:10 AM
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Foam selction

I seen Claus builds but could not find what type of foam he uses. I think he uses XPS.
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Last edited by p901P901; Aug 27, 2012 at 03:32 PM.
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Old Aug 27, 2012, 03:32 PM
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He uses sondolit xps 300 which is similiar to are pink and blue foam and now lowe's sells a green foam that I used last build.
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Old Aug 28, 2012, 08:24 AM
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what mm would you like the shell? 6mm seems thin for twin 90mm? Im using the model i have currently and when i scale it out to your requested dimensions ( 69.75inx43.5in)
my wingspan is a bit bigger at 45.960in.

I have a model of the change sun 90mm 12 blade
Rotor:
Dia. 87mm
Shroud:
Inside Dia. 89mm
Ouside Dia. 93.5mm
Motor/hub Outside Dia. 40mm

85% FSA @ 4558.24 mm Does this seem right?
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Old Aug 28, 2012, 10:10 AM
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I will be glassing inside and out what do you think would work? Maybe 10mm 3/8inch I have a lot of carbon tow I can add to area's also. Im not too good at figuring FSA but I think Rich said around 5000mm for 100% and I come up with about the same exact figure as you did for 85% Im wondering if with the ducting having that twist to them if it would be better to go bigger. The duct seemed a bit small with the round area in the middle and I think it was a proto type when I calculated it with out the round area and squaring up the corners like the real plane it was real close to the 4500 4600 area. Here is a diagram of the former at the duct with my crude calc.and the was I was going to do the inlet like the real plane. Like I said Im not worried if the model gets bigger all the better for fitting everything in. I was just going by what I hear most people say atleast 85% fsa and some will say bigger when having a long and twisted duct. If it will knock off the 2in spacing if making the fsa bigger then I could always just cheat the inlets a bit bigger. My chimers at about 85% seems to flow pretty good I should have done some tests with my watt meter to see before and after it was choked down to 85% too late for that though. Maybe someone else will chime in with there opinion on the fsa and the wall thickness of the foam. Even 1/2in wouldn't add much weight and would give some extra for sanding around compound area's like canopy. I like the inlet much better squared up without the round area in the top. I think this was just done in the proto type or possibly a different variant, but I have never seen it on the real one. The pic turned out crappy
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