S.P.A.D. Aircraft - Coroplast design Discuss the growing area of S.P.A.D.S. (Simple Plastic Airplane Designs). Coroplast type aircraft, pizza box planes, etc..

Smokin USS

Reply
Old 09-13-2005, 09:59 AM
  #1
Omaha_RC_Flyer
Thread Starter
 
Omaha_RC_Flyer's Avatar
 
Join Date: Mar 2004
Location: Omaha, NE
Posts: 500
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Smokin USS

Here are a few shots of my Smokin USS. I followed the [link=http://www.rcuniverse.com/magazine/article_display.cfm?article_id=455]How to article by MinnFlyer[/link] Total cost about $30.00! I'm using a windshield washer fluid pump, and MDW Super Dri smoke oil. I was able to get some video of it with my standard 8mm Camcorder. Once I get the video transferred to a CD/DVD, I'll try to post it.

Later,
Omaha
Attached Thumbnails
Click image for larger version

Name:	Zx71205.jpg
Views:	45
Size:	227.6 KB
ID:	323681   Click image for larger version

Name:	Yu63663.jpg
Views:	51
Size:	235.2 KB
ID:	323682   Click image for larger version

Name:	Lq37014.jpg
Views:	54
Size:	236.3 KB
ID:	323683   Click image for larger version

Name:	Ng10363.jpg
Views:	47
Size:	225.5 KB
ID:	323684  
Omaha_RC_Flyer is offline  
Reply With Quote
Old 09-13-2005, 09:05 PM
  #2
acam37
 
acam37's Avatar
 
Join Date: Jan 2004
Location: lufkin, TX
Posts: 543
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

I think smoke is awesome. When you post the video can you show us the interior layout? Also I would really like to see that coro field box that is in the 3rd pic.
acam37 is offline  
Reply With Quote
Old 09-14-2005, 12:17 AM
  #3
Omaha_RC_Flyer
Thread Starter
 
Omaha_RC_Flyer's Avatar
 
Join Date: Mar 2004
Location: Omaha, NE
Posts: 500
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

Got you covered on the Coro field box. See the thread I started on it. You may want to play around with the measurements to get the size you would like. I'll try to get a photo of the interior layout posted for you later on.


Later,
Omaha
Omaha_RC_Flyer is offline  
Reply With Quote
Old 09-14-2005, 02:57 PM
  #4
Omaha_RC_Flyer
Thread Starter
 
Omaha_RC_Flyer's Avatar
 
Join Date: Mar 2004
Location: Omaha, NE
Posts: 500
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

Acam,

Attached are a few photos of my smoke system layout. I have to use hemostats to clamp the line on the outside of the fuse (muffler line) when I fill the tank or part of the oil will exit out through the pump to the muffler line, which in turn, wastes oil. Once clamped, the oil will only go so far, while the remainder of the oil fills the tank, until it empties out the vent line.

The smoke pump is powered by a 4.8 volt pack, while the RX is powered by a 6.0 volt pack. If you use a windshield washer pump, make sure to run a tank full of oil through it before you install it, using a 12 Volt power source. Just pump it back through the vent line like a closed loop system. It really gets everything seated and working, before dropping the power to the lower 4.8 volt pack.


Hope this helps,
Omaha
Attached Thumbnails
Click image for larger version

Name:	If10721.jpg
Views:	157
Size:	74.6 KB
ID:	324083   Click image for larger version

Name:	Av69541.jpg
Views:	123
Size:	58.9 KB
ID:	324084   Click image for larger version

Name:	Pu51600.jpg
Views:	109
Size:	43.1 KB
ID:	324085  
Omaha_RC_Flyer is offline  
Reply With Quote
Old 09-14-2005, 03:10 PM
  #5
Omaha_RC_Flyer
Thread Starter
 
Omaha_RC_Flyer's Avatar
 
Join Date: Mar 2004
Location: Omaha, NE
Posts: 500
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

A few more photos!

Later,
Omaha
Attached Thumbnails
Click image for larger version

Name:	Ig11033.jpg
Views:	87
Size:	54.9 KB
ID:	324089   Click image for larger version

Name:	Rm37406.jpg
Views:	99
Size:	48.1 KB
ID:	324090   Click image for larger version

Name:	Yd83454.jpg
Views:	92
Size:	61.9 KB
ID:	324091  
Omaha_RC_Flyer is offline  
Reply With Quote
Old 09-14-2005, 04:05 PM
  #6
ChrisSpad
 
Join Date: Apr 2002
Location: Cordova, TN,
Posts: 1,528
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

i'll tell you a secret about smoke - but, use it at your own risk. You can install a line from the crankcase into a one way valve - pointed so that the "out" side is pointed to the smoke tank (just like the exhaust setup on your glow engines), and then out of the tank, into a dubro cutoff valve, and elliminate the pump altogether - however, if you don't use a very high quality tank, the pressure gets super high, and they've been known to explode, and coat the inside of your fuse with smoke oil - with a coro plane, its not really a big deal, but with wood- yuck.
At any rate, your setup looks great - what'd you use for a power supply and cutoff switch? I had a TME smoke pump setup once upon a time - ended up replacing their pump with a windshield washer pump - but using their electronic switch setup. I had more problems with that darned pump than i care to remember. I think i actually got it to smoke a grand total of 3 or 4 times in the air.
Hopefully, you'll have better luck than i did.
ChrisSpad is offline  
Reply With Quote
Old 09-14-2005, 11:54 PM
  #7
Omaha_RC_Flyer
Thread Starter
 
Omaha_RC_Flyer's Avatar
 
Join Date: Mar 2004
Location: Omaha, NE
Posts: 500
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

Chris,

I'm using a standard 4.8 volt rx battery pack for power. I connected it to a contact type Micro switch. When I flip a switch on my Tx, the servo horn presses on the micro switch, and the pump starts. When I flip the Tx switch back the micro switch is released, breaking the circuit. (See attached photo for close up view)

As far as wiring it. I soldered the positve motor wire and the positve battery wire to the micro switch. Then I soldered the negative battery wire to the negative pump wire and covered it with heat shrink. (See attached drawing)


Later,
Omaha
Attached Thumbnails
Click image for larger version

Name:	Qn38302.jpg
Views:	46
Size:	148.9 KB
ID:	324299   Click image for larger version

Name:	Sq47604.jpg
Views:	68
Size:	28.0 KB
ID:	324300  
Omaha_RC_Flyer is offline  
Reply With Quote
Old 10-19-2005, 09:25 PM
  #8
Omaha_RC_Flyer
Thread Starter
 
Omaha_RC_Flyer's Avatar
 
Join Date: Mar 2004
Location: Omaha, NE
Posts: 500
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

Here is a link to some video I got today of the USS smokin in flight.

http://media.putfile.com/SmokinUSS_0002

Later,
Omaha
Omaha_RC_Flyer is offline  
Reply With Quote
Old 11-05-2005, 10:41 AM
  #9
WILDCRASHWILLY
 
WILDCRASHWILLY's Avatar
 
Join Date: Oct 2003
Location: Western KY
Posts: 981
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

What did you use for a check valve between the muffler and the tank, and where did you purchase the valve?
Thanks
WILDCRASHWILLY is offline  
Reply With Quote
Old 11-05-2005, 06:45 PM
  #10
Omaha_RC_Flyer
Thread Starter
 
Omaha_RC_Flyer's Avatar
 
Join Date: Mar 2004
Location: Omaha, NE
Posts: 500
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

I purchased this [link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXG869&P=0]check valve[/link] at my local hobby shop. Make sure to get the one for Gasoline if you are using it for a smoke system. Fourmost also makes a glow version check valve, that is red/white.


Later,
Omaha
Attached Thumbnails
Click image for larger version

Name:	Sq46756.jpg
Views:	16
Size:	10.0 KB
ID:	349182  
Omaha_RC_Flyer is offline  
Reply With Quote
Old 11-08-2005, 04:06 PM
  #11
WILDCRASHWILLY
 
WILDCRASHWILLY's Avatar
 
Join Date: Oct 2003
Location: Western KY
Posts: 981
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

Thanks Omaha,

I'm going to try to build one of these.
WILDCRASHWILLY is offline  
Reply With Quote
Old 04-23-2006, 06:55 PM
  #12
Gravityisnotmyfriend
 
Gravityisnotmyfriend's Avatar
 
Join Date: Mar 2004
Location: Greenville, WI
Posts: 882
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

OK, so this plane isn't a SPAD, but the smoke setup was taken from this thread. The pump is a windshield fluid pump out of a junked car and is actuated with a micro-switch from radioshack. I used the same method for a regulating valve as what MinnFlyer suggested. Total money invested is about $8 for the switch and one way valve. I haven't tried it in the air yet as I just got everything plumbed and I just had to try it out in the backyard. I'm really looking forward to seeing this in the air. Thanks to Omaha and MinnFlyer for the plans.
Attached Thumbnails
Click image for larger version

Name:	Fd92398.jpg
Views:	33
Size:	36.5 KB
ID:	450322  
Gravityisnotmyfriend is offline  
Reply With Quote
Old 04-23-2006, 09:02 PM
  #13
Omaha_RC_Flyer
Thread Starter
 
Omaha_RC_Flyer's Avatar
 
Join Date: Mar 2004
Location: Omaha, NE
Posts: 500
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

Gravityisnotmyfriend,

You can regulate the oil flow by running the oil clunk line, after it leaves the tank, through an electrical lug (see photos), before it enters the pump. Mount the lug in a way you can have access to the screw from the out side of the fuse. Turn the screw in, to pinch the line and reduce the oil flow, or turn it out to increase the oil flow. This is what I used at first, but I found that using a 4.8 volt pack delivers the right amount of smoke oil without the need for a lug (to reduce the flow) on my USS smoke set-up.

Later,
Omaha
Attached Thumbnails
Click image for larger version

Name:	Ki18315.jpg
Views:	17
Size:	32.0 KB
ID:	450423   Click image for larger version

Name:	Av69531.jpg
Views:	22
Size:	25.3 KB
ID:	450424   Click image for larger version

Name:	Qv53885.jpg
Views:	18
Size:	43.2 KB
ID:	450425  
Omaha_RC_Flyer is offline  
Reply With Quote
Old 04-23-2006, 10:07 PM
  #14
Gravityisnotmyfriend
 
Gravityisnotmyfriend's Avatar
 
Join Date: Mar 2004
Location: Greenville, WI
Posts: 882
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

I have a dowel that the line goes thru and a screw that goes into that dowel. I didn't restrict the flow at all and found that it made alot of smoke. I am using a 4.8V pack as well, so maybe I don't need to restrict the flow either. If I find out that I need to change the amount of oil flow, I'll use your method. What I have now can't be adjusted with the wing on the plane. The electrical lug seems like it would be much more convenient.
Gravityisnotmyfriend is offline  
Reply With Quote
Old 04-27-2006, 06:42 AM
  #15
kd7oir
 
Join Date: Jan 2006
Location: Pomeroy, WA
Posts: 261
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

What is the Check Valve for and where is it placed?
Shawn
kd7oir is offline  
Reply With Quote
Old 04-27-2006, 10:26 AM
  #16
Omaha_RC_Flyer
Thread Starter
 
Omaha_RC_Flyer's Avatar
 
Join Date: Mar 2004
Location: Omaha, NE
Posts: 500
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

The Check Valve allows the smoke oil to travel in one direction (toward the muffler). If a check valve is not being used the pressure from the muffler would reduce the amount of oil being pumped into the muffler, by forcing it back up through the oil inlet line. Does this help?

The check valve needs to be placed in the oil line attached to the muffler after it leaves the pump. somewhere in between the pump out and the muffler


Later,
Omaha
Omaha_RC_Flyer is offline  
Reply With Quote
Old 04-27-2006, 02:34 PM
  #17
ChrisSpad
 
Join Date: Apr 2002
Location: Cordova, TN,
Posts: 1,528
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

hrmmm, its been a long time since i had a smoke system - especially one operated on crank pressure, but, i'm 99% sure i put the check valve between the crankcase, and the pressure inlet on the smoke tank - else you didn't get any pressure on the oil. It simply pulsed back and forth with the crank pressure.
ChrisSpad is offline  
Reply With Quote
Old 04-27-2006, 03:03 PM
  #18
Omaha_RC_Flyer
Thread Starter
 
Omaha_RC_Flyer's Avatar
 
Join Date: Mar 2004
Location: Omaha, NE
Posts: 500
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

I'm not sure on systems pressurized by crank pressure. I have no clue when it comes to those. I was referring to the one like I have on my USS, with a smoke pump (i.e. windshield washer pump).

Later,
Omaha
Omaha_RC_Flyer is offline  
Reply With Quote
Old 04-27-2006, 08:32 PM
  #19
ChrisSpad
 
Join Date: Apr 2002
Location: Cordova, TN,
Posts: 1,528
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

hmm. I've never used the check valve with the pump setup, maybe thats why i had issues with it in the air. lol.
ChrisSpad is offline  
Reply With Quote
Old 04-28-2006, 09:26 AM
  #20
Omaha_RC_Flyer
Thread Starter
 
Omaha_RC_Flyer's Avatar
 
Join Date: Mar 2004
Location: Omaha, NE
Posts: 500
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

I don't think the muffler pressure would be enough to reverse the oil flow once it gets back to the pump, but what do I know . I just followed Minnflyer's instructions on the RCU article he did (see link in post #1).


Later,
Omaha
Omaha_RC_Flyer is offline  
Reply With Quote
Old 04-28-2006, 10:44 AM
  #21
Gravityisnotmyfriend
 
Gravityisnotmyfriend's Avatar
 
Join Date: Mar 2004
Location: Greenville, WI
Posts: 882
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

I got to test the smoke systems yesterday. It worked and I was pretty happy with the smoke trail I got. My favorite thing to do so far is to pull straight up, hit the smoke and hang on the prop until the plane starts backing up into the cloud of smoke. I still need to work on the setup a little more. First, I was a little dissappointed about the smoke time. I can only get three or four minutes of smoke. I can get a couple more minutes if I fly inverted and I'm not sure why. It might be an issue with the clunk. How much smoke can I expect with a 12oz oil tank? The other issue I have is that I found out the my pump is not self priming. It won't suck oil from the tank if there's air in the line. Hey Omaha, where did you get your pump? Will it self prime? I found a replacement pump at WalMart for about $9, and I might use that instead.
Gravityisnotmyfriend is offline  
Reply With Quote
Old 04-28-2006, 11:18 AM
  #22
flybug
 
flybug's Avatar
 
Join Date: Dec 2005
Location: Columbia, MD
Posts: 580
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

Hey Gravityisnotmyfriend, what type/brand pump you found at wally-world for that price? Please share.

Thanks
flybug is offline  
Reply With Quote
Old 04-28-2006, 12:10 PM
  #23
Omaha_RC_Flyer
Thread Starter
 
Omaha_RC_Flyer's Avatar
 
Join Date: Mar 2004
Location: Omaha, NE
Posts: 500
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

Quote:
ORIGINAL: Gravityisnotmyfriend

I got to test the smoke systems yesterday. It worked and I was pretty happy with the smoke trail I got. My favorite thing to do so far is to pull straight up, hit the smoke and hang on the prop until the plane starts backing up into the cloud of smoke. I still need to work on the setup a little more. First, I was a little dissappointed about the smoke time. I can only get three or four minutes of smoke. I can get a couple more minutes if I fly inverted and I'm not sure why. It might be an issue with the clunk. How much smoke can I expect with a 12oz oil tank? The other issue I have is that I found out the my pump is not self priming. It won't suck oil from the tank if there's air in the line. Hey Omaha, where did you get your pump? Will it self prime? I found a replacement pump at WalMart for about $9, and I might use that instead.

I do the same thing! It looks cool when the plane falls into the smoke cloud, kind of like an airshow full scale plane. I typically turn my smoke on and off in short spurts. It seems to last longer, than leaving it on for a long time. Plus, by waiting a little bit in between smoking, it gives the muffler a chance the get hotter, since the smoke oil tends to cool it off, if left on for a period of time.

Yes the pump I have self primes. I bought it from a Auto Parts store, for about $12.00, I'm sure the one at Wally World will be similar, but not sure. The one I have is designed to be used outside of the Washer fluid tank, when the factory pump inside the tank, goes bad. Is that Kind of what you bought from Wally World.


Later,
Omaha
Omaha_RC_Flyer is offline  
Reply With Quote
Old 04-28-2006, 02:44 PM
  #24
flybug
 
flybug's Avatar
 
Join Date: Dec 2005
Location: Columbia, MD
Posts: 580
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

I wonder if this system will fit in my Spadet and work with my .46 size engine? Any ideas on that?
flybug is offline  
Reply With Quote
Old 04-30-2006, 09:49 PM
  #25
Gravityisnotmyfriend
 
Gravityisnotmyfriend's Avatar
 
Join Date: Mar 2004
Location: Greenville, WI
Posts: 882
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default RE: Smokin USS

Flybug,
I don't remember the brand of pump, it was the only one they had there. What kind of engine do you have on the Spadet? It should work if you have a four-stroke since the exhaust temp is pretty high. If it's a two stroke, it'd be tougher. You would have to wrap a coil of copper tubing around the muffler so that the oil can heat up enough. Even then, it might not work. The other problem is that on a .40 sized plane, it might add too much weight for it to fly very well. If I were you, I would just follow the SPAD mantra and try it and see if it works. You can get all the help you need on this forum.

Omaha,
That's exactly what I was thinking, how it looks like a full scale air show I tried just using the smoke in short bursts, but the pump would lose prime and I would have to land and re-prime the pump to get more smoke. The one I have came from inside the washer tank, so there's no reason for it to self prime. I haven't actually bought the pump that I saw at wallyworld yet, but it sound's like the same thing. I think I will buy it though since the system I have now has too many limitations. It's definitely worth the $9-$12 and it should be a quick fix since everything else is working right.
Gravityisnotmyfriend is offline  
Reply With Quote
Reply


Thread Tools
Search this Thread
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -8. The time now is 08:40 PM.