Log in
Search
Latest topics
» my attempt at making an exhaust throttle for Cox .049by balogh Today at 12:07 am
» Testers Sprite engine swap
by Greenman38633 Yesterday at 9:32 pm
» Elfin 0.5cc (Arnie Hende replica)
by dan vincent Yesterday at 9:18 pm
» Introducing our Cox .049 TD Engines
by layback209 Yesterday at 9:10 pm
» Anderson Baby Spitfire - looking for the aft tank and gasket
by Boats13 Yesterday at 8:18 pm
» Fuel residue stain clening help
by akjgardner Yesterday at 7:53 pm
» Another of C.T. engines cleaned ---- Cox Tee Dee .09 --- Just today (3/26/2024) more Cox parts
by sosam117 Yesterday at 5:55 pm
» Cox powered boat litle shrimp hidroplane
by davidll1984 Yesterday at 2:52 pm
» Introducing the new - "QZ" RR-1
by roddie Yesterday at 1:08 pm
» STUKA bomb dimentions needed
by latole Yesterday at 9:36 am
» Indexing COX cylinders
by davidll1984 Yesterday at 7:56 am
» 1/2a Skyray plans?
by 944_Jim Wed Mar 27, 2024 10:14 pm
*Cox Engine of The Month* Submit your pictures! -May 2017-
Page 1 of 1
*Cox Engine of The Month* Submit your pictures! -May 2017-
submit the next
COX ENGINE of the MONTH!
and have a chance to win a Black Lynx .049 Engine from Ex Model Engines!
CLICK HERE FOR MORE INFO
COX ENGINE of the MONTH!
and have a chance to win a Black Lynx .049 Engine from Ex Model Engines!
CLICK HERE FOR MORE INFO
Rules: You may post *one (1) picture of an engine or a group of engines that are alike (for example: a collection of Space Bug Jr.s that feature each color tank). The engine must be a Cox engine, it can be stock or parts built. Cox engines using aftermarket or handmade parts and multi-cylinder engines are allowed as long as they feature Cox made crankcase(s) and cylinder(s). Although proof isn't required, engines that are built using aftermarket or handmade parts have to be able to run. A good example of a non-running homemade engine that wouldn't qualify for this contest is found HERE. Disassembled engines are allowed as long as all parts are visible and the engine is in running condition when assembled.
If you are unsure if your picture qualifies, feel free to contact the administrator with questions.
* You may post multiple "pictures" as long as they are all joined together in one picture. (This is done in image editing software before uploading)
MAIN POINTS
•One picture
•Picture shall be of one engine or engines that are alike (a Babe Bee and a Tee Dee .049 together would NOT qualify)
•Must be a Cox Engine
•Engines using aftermarket or handmade parts must feature Cox made crankcase(s) and cylinder(s)
•Engine must be able to run
Optional Caption
Along with your picture you may include a caption that describes or explains the picture. The caption should include the name and displacement of the engine. The caption has to be short as if you picture wins, it will be posted under the picture in the sidebar. If you do not include a caption, one will be thought up for you.
After 5 days, the first 10 pictures will be moved to another topic to be voted on by other members. The winner will have their engine displayed on the sidebar of the forum and forever listed on the past winners page.
Looking forward to see what you guys come up with! Good Luck!
Kim- Top Poster
-
Posts : 8509
Join date : 2011-09-06
Location : South East Missouri
NEW222- Top Poster
- Posts : 3885
Join date : 2011-08-13
Age : 45
Location : oakbank, mb
Silver Pee Wee .020 on Top Flite Silver Streak
My favorite Cox engine, the venerable Pee Wee .020 on a plane that means a lot to me as well Not sure what year this kit was made, But I know I had one in either 1968 or 1969. Flew the wings off of it on very short lines, in the cul de sac we lived on. Once, I started the motor with my brother on the handle and let it go. Almost immediately after standing up, the plane center punched me in the back, knocking me flat on my face! I was lucky to find this awesome example of plane and engine, enjoy!
badbill- Gold Member
- Posts : 312
Join date : 2015-08-13
Age : 67
Location : Centerville, Georgia
OVERLORD- Diamond Member
- Posts : 1775
Join date : 2013-03-19
Age : 57
Location : Normandy, France
MauricioB- Top Poster
- Posts : 3517
Join date : 2016-02-16
Age : 52
Location : ARG
Re: *Cox Engine of The Month* Submit your pictures! -May 2017-
Last edited by Marleysky on Tue May 02, 2017 8:39 pm; edited 1 time in total
Marleysky- Top Poster
-
Posts : 3618
Join date : 2014-09-28
Age : 71
Location : Grand Rapids, MI
Davenz13- Platinum Member
- Posts : 591
Join date : 2013-11-28
Age : 68
Location : Palmerston North, New Zealand
Re: *Cox Engine of The Month* Submit your pictures! -May 2017-
Pretty engine. Is it a disc or reed induction?
fit90- Diamond Member
- Posts : 1336
Join date : 2011-08-11
Location : Naples, Florida
Re: *Cox Engine of The Month* Submit your pictures! -May 2017-
It's disc, It's official name is rather long winded. Valentine Cox Speed Racer Drum Valve RR1 Special
Davenz13- Platinum Member
- Posts : 591
Join date : 2013-11-28
Age : 68
Location : Palmerston North, New Zealand
Re: *Cox Engine of The Month* Submit your pictures! -May 2017-
What is the difference between disc and drum valve? I have several of his disc valve engines.
fit90- Diamond Member
- Posts : 1336
Join date : 2011-08-11
Location : Naples, Florida
Re: *Cox Engine of The Month* Submit your pictures! -May 2017-
Disc is like a flat plate with an opening in the face.
Drum is like a cylinder (or drum) with an opening in the side.
Drum is like a cylinder (or drum) with an opening in the side.
706jim- Gold Member
- Posts : 456
Join date : 2013-11-29
fit90- Diamond Member
- Posts : 1336
Join date : 2011-08-11
Location : Naples, Florida
Re: *Cox Engine of The Month* Submit your pictures! -May 2017-
Oh man I had a feeling you’d ask that.
Strictly speaking I wasn’t exactly right saying disc although that’s the closest definition between your question disc or reed.
Loosely speaking a disc valve can be any circular part of a device that shuts, opens or moderates flow. These can do this by moving edgeways across the flow or rotating through their axis. They can also do it in a manner very similar to a reed valve, for example a crankcase venting valve, negative crankcase pressure, disc valve sucked shut, positive crankcase pressure disc valve pushed open. You see the similarity here. If a reed valve was a circular shape you could call it a disc valve. A disc valve although it may move around a bit does not need to rotate to perform its function
A rotary valve is exactly that. It’s a disc with a hole or opening away from its central axis. When the disc rotates the opening in the disc lines up with a corresponding opening allowing the flow to take place then shuts it off as the disc rotates on. These have to rotate to work. This type can also be called a drum valve although I tend to think of drum valves as being more tubular.
This is the type of valve in this engine
There’s bound to be someone on here can explain it better than I have. I’m sure I’ve got a spare RR1 rotary valve somewhere. I’d post a picture of it for you but at the moment I can’t find it.
This reminds me of a Kawasaki I was riding that suddenly and explicably stopped as though the key had been turned off. Later examination found that the big-end brass thrust washer had broken and as murphy’s law would have it the remains were passing through the disc valve opening but hadn’t quite made it all the way through when the opening closed. The outer part of the disc was fibre and when the piece of washer jammed itself in there the fibre disc promptly stopped and sheared itself off from its drive collar and that was the end of that.
Strictly speaking I wasn’t exactly right saying disc although that’s the closest definition between your question disc or reed.
Loosely speaking a disc valve can be any circular part of a device that shuts, opens or moderates flow. These can do this by moving edgeways across the flow or rotating through their axis. They can also do it in a manner very similar to a reed valve, for example a crankcase venting valve, negative crankcase pressure, disc valve sucked shut, positive crankcase pressure disc valve pushed open. You see the similarity here. If a reed valve was a circular shape you could call it a disc valve. A disc valve although it may move around a bit does not need to rotate to perform its function
A rotary valve is exactly that. It’s a disc with a hole or opening away from its central axis. When the disc rotates the opening in the disc lines up with a corresponding opening allowing the flow to take place then shuts it off as the disc rotates on. These have to rotate to work. This type can also be called a drum valve although I tend to think of drum valves as being more tubular.
This is the type of valve in this engine
There’s bound to be someone on here can explain it better than I have. I’m sure I’ve got a spare RR1 rotary valve somewhere. I’d post a picture of it for you but at the moment I can’t find it.
This reminds me of a Kawasaki I was riding that suddenly and explicably stopped as though the key had been turned off. Later examination found that the big-end brass thrust washer had broken and as murphy’s law would have it the remains were passing through the disc valve opening but hadn’t quite made it all the way through when the opening closed. The outer part of the disc was fibre and when the piece of washer jammed itself in there the fibre disc promptly stopped and sheared itself off from its drive collar and that was the end of that.
Davenz13- Platinum Member
- Posts : 591
Join date : 2013-11-28
Age : 68
Location : Palmerston North, New Zealand
balogh- Top Poster
-
Posts : 4739
Join date : 2011-11-06
Age : 65
Location : Budapest Hungary
getback- Top Poster
-
Posts : 10028
Join date : 2013-01-18
Age : 66
Location : julian , NC
balogh- Top Poster
-
Posts : 4739
Join date : 2011-11-06
Age : 65
Location : Budapest Hungary
Re: *Cox Engine of The Month* Submit your pictures! -May 2017-
Old pic there together now , my display is not unfortunately the glasses for my display (shelving) got broken all but one
getback- Top Poster
-
Posts : 10028
Join date : 2013-01-18
Age : 66
Location : julian , NC
KariFS- Diamond Member
- Posts : 1993
Join date : 2014-10-10
Age : 52
Re: *Cox Engine of The Month* Submit your pictures! -May 2017-
Mark Boesen wrote:10?
Hey Mark, if you wanted to submit a pic, I wouldn't mind withdrawing mine. I thought I'll take a break this month but then just submitted one so that we'll get the poll going
KariFS- Diamond Member
- Posts : 1993
Join date : 2014-10-10
Age : 52
Re: *Cox Engine of The Month* Submit your pictures! -May 2017-
Yep, looks like we have 10.
I'll get to poll set up later today.
I'll get to poll set up later today.
Re: *Cox Engine of The Month* Submit your pictures! -May 2017-
KariFS wrote:Mark Boesen wrote:10?
Hey Mark, if you wanted to submit a pic, I wouldn't mind withdrawing mine. I thought I'll take a break this month but then just submitted one so that we'll get the poll going
no, but thanks anyway, i was just stating it looks like 10 :^ )..
Similar topics
» *Cox Engine of The Month* Submit your pictures! -April 2017-
» *Cox Engine of The Month* Submit your pictures! -February 2017-
» *Cox Engine of The Month* Submit your pictures! -August 2017-
» *Cox Engine of The Month* Submit your pictures! -October 2017-
» *Cox Engine of The Month* Submit your pictures! -November 2017-
» *Cox Engine of The Month* Submit your pictures! -February 2017-
» *Cox Engine of The Month* Submit your pictures! -August 2017-
» *Cox Engine of The Month* Submit your pictures! -October 2017-
» *Cox Engine of The Month* Submit your pictures! -November 2017-
Page 1 of 1
Permissions in this forum:
You cannot reply to topics in this forum