RE: Shinden Build  
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RE: Shinden Build - 6/25/2008 8:20:31 PM   
M A W


 

Posts: 39
Joined: 6/3/2008
From: Basingstoke, UNITED KINGDOM
Status: offline 		Hi mjfrederick,

Great to hear another successful Shinden build / test flight. Does the indication of the weight needing to be moved forward due to the knife edge yawing apply to most set ups? I do find trimming can sometimes be a bit of a challenge as to what to look for and then to know what to do for the cure / fix.

Is there an easy explanation on how moving the CofG forward a bit can cure this.

Thanks,

Mark.


(in reply to mjfrederick)
       Post #: 176

RE: Shinden Build - 6/25/2008 9:15:55 PM   
mjfrederick


 

Posts: 563
Joined: 8/18/2006
From: Baton Rouge, LA, USA
Status: offline 		The solution comes directly from the designer, Bryan Hebert. He posted a trimming guide to the NSRCA list, with his permission I edited it for publication in the K-Factor and on his website. Any trim problems with his airplanes (and almost all others provided it is a sound design) can be corrected following the steps taken in this article. The only stipulation is that you have to be flying with positive incidence on the wings (the Shinden is not built with 0-0 anyway). A lot of the recommendations he makes are not valid for 0-0 setups. You can find the article here: Triangulation Trimming.

< Message edited by mjfrederick -- 6/25/2008 9:21:33 PM >

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mjfrederick AMA 275874 NSRCA 4134
Maybe the Dingo ate your baby

(in reply to M A W)
       Post #: 177

RE: Shinden Build - 6/25/2008 9:51:03 PM   
M A W


 

Posts: 39
Joined: 6/3/2008
From: Basingstoke, UNITED KINGDOM
Status: offline 		Excellent......... Thank you.

(in reply to mjfrederick)
       Post #: 178

RE: Shinden Build - 6/30/2008 2:49:28 AM   
jon bruml


 

Posts: 2
Joined: 6/24/2008
From: hayward , CA, USA
Status: offline 		Hello,

I am about to purchase a shinden having never seen one.

Can you explain this nose ring set up in greater detail. I have been out of the hobby for several years and was figuring to use a Hyde mount

thanks

Jon

(in reply to Jetpilot12)
       Post #: 179

RE: Shinden Build - 6/30/2008 2:51:50 PM   
mjfrederick


 

Posts: 563
Joined: 8/18/2006
From: Baton Rouge, LA, USA
Status: offline 		Not sure what you're really asking for as far as details. I've seen as many different nose ring installations as I've seen Shindens (that's about 5 or 6). It's just a matter of preference. The most important thing is that the ring will hold the front of the engine on line, and the soft mount will only allow rotation of the engine. Perhaps Bryan can chime in with specific details about installing one in a Shinden, as I haven't built one yet.

_____________________________

mjfrederick AMA 275874 NSRCA 4134
Maybe the Dingo ate your baby

(in reply to jon bruml)
       Post #: 180

RE: Shinden Build - 7/5/2008 1:40:10 AM   
burtona


 

Posts: 106
Joined: 4/7/2003
From: Bolivia, NC, USA
Status: online 		On my Shinden I centered the nose ring first using a 2 step bushing I made of plastic in my lathe and marked the holes for the 4-40 screws to hold the nose ring. Then I drilled and countersunk the holes, put the nose ring on the engine, engine in the Hyde mount and screwed everything together locating the engine and mount with the nose ring, spinner back plate and a 1/8" spacer. Then I hung the fuselage nose up on the wall by the landing gear and installed the firewall through the canopy opening with 30 minute epoxy and cabasil thickener. I used a light film of glue on the back of the Hyde mount to keep it in place. When the epoxy cured I carefully removed the engine and nose ring and drilled holes to bolt the Hyde mount with blind nuts. Then I finished glueing the firewall on both sides with epoxy and fiberglass cloth.

(in reply to mjfrederick)
       Post #: 181

RE: Shinden Build - 7/5/2008 1:47:08 AM   
burtona


 

Posts: 106
Joined: 4/7/2003
From: Bolivia, NC, USA
Status: online 		A Cooling question for you guys using a YS 160-70 in a Shinden. I'm in the process of completing my Shinden with a YS 160DZ. What cooling holes need to be made in the Cowl to allow enough air out to keep things cool? I can install the cowl over the engine and everything clears but I'm concerned that I'll have enough exhaust air escaping from just the hole to access the glow plug. How big and how many holes need to be cut to get the air out? Any baffles needed?
Thanks,
Dave Burton

(in reply to burtona)
       Post #: 182

RE: Shinden Build - 7/16/2008 8:26:06 PM   
DAVE KEPHART


 

Posts: 104
Joined: 9/27/2002
From: BEND, OR, USA
Status: offline 		I ASKED THE SAME QUESTION AND THE ANSWER IS NO EXTRA HOLES NEEDED ,'CEPT FOR A SMALL HOLE FOR THE GLOW PLUG CONNECTION.1/2 CASE OF 30% THROUGH MY 1.60 YS ,AND NO FLAME OUTS FROM OVERHEATING ,OR ANYTHING ELSE.PERFECT DESIGN.

(in reply to burtona)
       Post #: 183

RE: Shinden Build - 7/18/2008 12:43:09 AM   
burtona


 

Posts: 106
Joined: 4/7/2003
From: Bolivia, NC, USA
Status: online 		Thanks Dave. I'll try mine the same way. Here's a picture. It's ready except for checking the CG and installing the battery, switch, and receiver.

Attachments
Click to see fullsize image.
Click for fullsize 		Click to see fullsize image.
Click for fullsize


< Message edited by burtona -- 7/18/2008 12:45:51 AM >

(in reply to DAVE KEPHART)
       Post #: 184

RE: Shinden Build - 7/18/2008 1:04:34 AM   
flyncajun


 

Posts: 120
Joined: 12/25/2006
From: DENHAM SPRINGS , LA, USA
Status: offline 		Hi Dave
plane looks good !
make sure for best flying results you have the c/g on the front side of the wing tube to 1/8 in front of the wing tube
mount your switch and battery all the way forward ,,,battery near the firewall.
Set the wing inc at 5/8 deg pos. it`s a little shy from the factory,
adjust the stab to match the elevators after the trim flight

On the air intake I opened mine a little in the front to help keep it cool !!!
down here in the dead of summer it does get a little warm in the cowling
for snaps it takes
13 deg up elevator 15 down
18-20 deg ail throw evenly adjusted up and down
low rate rudder ,,,for both snaps and spins.
If it wants to keep rotating on the snaps and spins your ,,,tail Heavy or,,, too much rudder input {it takes very little rudder for all snaps }
good luck let us know how it flies.
Now1,,,, back to Nat`s packing
Bryan

(in reply to burtona)
       Post #: 185

RE: Shinden Build - 7/18/2008 2:30:26 PM   
mjfrederick


 

Posts: 563
Joined: 8/18/2006
From: Baton Rouge, LA, USA
Status: offline 		Is the plane really that pink, or is there something wrong with the picture? Or my eyes?

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mjfrederick AMA 275874 NSRCA 4134
Maybe the Dingo ate your baby

(in reply to flyncajun)
       Post #: 186

RE: Shinden Build - 7/18/2008 3:41:51 PM   
LCHelilover


 

Posts: 130
Joined: 5/17/2003
From: Lake Charles, LA, USA
Status: offline 		That is PAANK!
<G>
G

(in reply to mjfrederick)
       Post #: 187

RE: Shinden Build - 7/18/2008 3:57:52 PM   
burtona


 

Posts: 106
Joined: 4/7/2003
From: Bolivia, NC, USA
Status: online
quote:

ORIGINAL: mjfrederick

Is the plane really that pink, or is there something wrong with the picture? Or my eyes?


Nope, It's red, white, and blue. Sometimes my digital camera gets the exposure wrong due to my ignorance of them and I don't know how to correct. Pictures would have come out better if I had put the plane in the sunshine rather than the shade of the shop I think.

(in reply to mjfrederick)
       Post #: 188

RE: Shinden Build - 7/18/2008 4:42:13 PM   
mjfrederick


 

Posts: 563
Joined: 8/18/2006
From: Baton Rouge, LA, USA
Status: offline 		OK, I figured something like that had happened, now I can at least imagine... Nice looking job on that! To be honest, my first thought when I saw the picture was "That's beautiful, what is that, velvet?"

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mjfrederick AMA 275874 NSRCA 4134
Maybe the Dingo ate your baby

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       Post #: 189

RE: Shinden Build - 7/18/2008 7:04:45 PM   
DAVE KEPHART