Andy Sheber Pitts s1s - Page 16 - RC Groups
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Jan 27, 2013, 05:14 PM
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ace4rc's Avatar
With the airframe having red stripes, I think those red engine heads are going to be a nice touch when viewing from the front. I have the wings all mounted, tomorrow I plan on drilling the bolt and blindnut holes. Once the struts are done and bolted I can finish the cabane. Then move on to the forward fuse panels.
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Jan 28, 2013, 03:48 PM
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ace4rc's Avatar
Right strut has been fine tuned and bolted. On to the left one.
Jan 28, 2013, 04:03 PM
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EJWash1's Avatar
Sweet!

EJWash
Jan 28, 2013, 06:02 PM
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ace4rc's Avatar
Struts are done. Next is to finish the cabane, it need's the, fore/aft, brace.
Jan 29, 2013, 10:13 AM
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ace4rc's Avatar
Cabane brace installed.
Jan 29, 2013, 04:27 PM
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greyflight390's Avatar
Looking real snazzy Robert.

Ken
Jan 29, 2013, 05:30 PM
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ace4rc's Avatar
Thanks Ken.
I have one of the exhaust done. But not much careing for the weight gain. Tomorrow I will call J-Tech and see what they can come up with.
Jan 29, 2013, 05:38 PM
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EJWash1's Avatar
Quote:
Originally Posted by ace4rc
Thanks Ken.
I have one of the exhaust done. But not much careing for the weight gain. Tomorrow I will call J-Tech and see what they can come up with.
I bet!

Something flexible from the exhaust (after the muffler) leading to something mounted on the firewall maybe?

Then again, is stifling back-pressure a concern?

EJWash
Jan 29, 2013, 08:23 PM
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ace4rc's Avatar
Ok, well, I took that mess off. I found some aluminum tube the same size so I will wait for that. Finding the tube was a two day affair, two day's of not finding any. Then I sat down here and typed in 18mm aluminum tube, and Voila. And I be darned if the first place to pop up is a place I already buy from just never thought of them, Chiefaircraft and only 8 bucks for a stick.
EJ, Buying a piece of aluminum I can make a better radius than seen above. So I don't think back pressure will be a problem or at least I hope.
Jan 29, 2013, 08:42 PM
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epoxyearl's Avatar
I didn't see a noticeable rpm decrease until I added about 20 " of pipe on the Q-50.I made sure the new pipe fit OVER the existing one though.
And then I don't think it was back pressure as much as reverse 'tuning'.
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Jan 29, 2013, 08:49 PM
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ace4rc's Avatar
Ok, you got me with that one, what is reverse tuning?
Jan 29, 2013, 09:00 PM
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epoxyearl's Avatar
Quote:
Originally Posted by ace4rc
Ok, you got me with that one, what is reverse tuning?
Racers use tuned pipes to increase power/rpms...They need to be adjusted to an optimum length for a certain range. If the sound waves are adjusted improperly, they won't encourage exhaust flow, but stifle it=reverse tuning..

Don't sweat the extra pipe you're adding...It's cool !
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Jan 29, 2013, 09:10 PM
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ace4rc's Avatar
Did not know that, cool. Thank's!
Jan 30, 2013, 04:07 PM
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ace4rc's Avatar
The exhaust is on hold, waiting for some pipe. And the cowl mount is on hold, waiting for some magnets. Still waiting for the cable supplies for the rudder hook-up. Oh yea, still waiting for the panel.
So I guess I'll work on the fuse panels next.
Jan 30, 2013, 04:16 PM
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stuntflyr's Avatar
Great looking fin and rudder, Ace. The model is going to be beautiful.
Chris...


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