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Cox Engine of The Month
"With friends like this............I feel blessed!" My new engine.
Page 1 of 1
duke.johnson- Diamond Member
- Posts : 1734
Join date : 2012-11-05
Age : 52
Location : Rochester, Washington
Re: "With friends like this............I feel blessed!" My new engine.
Looks to me to be a Sportsman .15 nice find man I want one too! (bandit)
TDbandit- Platinum Member
- Posts : 897
Join date : 2014-12-01
Age : 52
Location : Riverdale Georgia
Re: "With friends like this............I feel blessed!" My new engine.
Does he need anymore friends? Nice engine.
NEW222- Top Poster
- Posts : 3892
Join date : 2011-08-13
Age : 45
Location : oakbank, mb
Re: "With friends like this............I feel blessed!" My new engine.
He also owns a hobby shop.
duke.johnson- Diamond Member
- Posts : 1734
Join date : 2012-11-05
Age : 52
Location : Rochester, Washington
Re: "With friends like this............I feel blessed!" My new engine.
Yep, Sportsman .15! Really nice collectors condition!
Re: "With friends like this............I feel blessed!" My new engine.
Collectors condition? I've been think of a plane to build and fly it.Admin wrote:Yep, Sportsman .15! Really nice collectors condition!
duke.johnson- Diamond Member
- Posts : 1734
Join date : 2012-11-05
Age : 52
Location : Rochester, Washington
Re: "With friends like this............I feel blessed!" My new engine.
nice condition. The only thing missing is the spring starter. If it truly is new it be best to sell or trade for a runner. But that's the collector in me talking. Avoid electric starters on this engine. There isn't a thrust washer used between the case and drive plate.
If you do run it be sure to sign up for the CEF loaner 15 piston reset tool. You're going to eventually need it.
If you do run it be sure to sign up for the CEF loaner 15 piston reset tool. You're going to eventually need it.
Jason_WI- Top Poster
-
Posts : 3123
Join date : 2011-10-09
Age : 48
Location : Neenah, WI
1/2A Nut- Top Poster
- Posts : 3426
Join date : 2013-10-20
Age : 60
Location : Brad in Texas
Re: "With friends like this............I feel blessed!" My new engine.
Nice !! , Duke if your not a collector then he probably intended on you to fly /run it ,, Nut were you get that lf. hand spring for yours ? Eric
getback- Top Poster
-
Posts : 10114
Join date : 2013-01-18
Age : 66
Location : julian , NC
Re: "With friends like this............I feel blessed!" My new engine.
These springs show up on ebay from time to time as OEM parts I do deep searches looking for all Cox related products as some folks don't list in the right category. A spring this size is neat to operate lol first time I loaded that big prop up was a real treat and the second and third and so on.
1/2A Nut- Top Poster
- Posts : 3426
Join date : 2013-10-20
Age : 60
Location : Brad in Texas
Re: "With friends like this............I feel blessed!" My new engine.
Jason_WI wrote:nice condition. The only thing missing is the spring starter.
....and my pocket around it...
balogh- Top Poster
-
Posts : 4745
Join date : 2011-11-06
Age : 65
Location : Budapest Hungary
Re: "With friends like this............I feel blessed!" My new engine.
I'll have to find a starter spring for it.
Getback- your right, he didn't give it to me to look at.
I wonder what plane I should match it up with? My first thought would be the Sig Akromaster. Maybe a Flying Clown?
Getback- your right, he didn't give it to me to look at.
I wonder what plane I should match it up with? My first thought would be the Sig Akromaster. Maybe a Flying Clown?
duke.johnson- Diamond Member
- Posts : 1734
Join date : 2012-11-05
Age : 52
Location : Rochester, Washington
Parts
I might have some parts for that motor . I'll check and post back tomorrow .
Mike1284
Mike1284
Mike1484- Gold Member
- Posts : 296
Join date : 2011-10-28
Age : 75
Location : Northern Ohio
Re: "With friends like this............I feel blessed!" My new engine.
Do you guys think the Sportsman would fly a Jr Ringmaster? I usually fly them on an OS 15FP.
duke.johnson- Diamond Member
- Posts : 1734
Join date : 2012-11-05
Age : 52
Location : Rochester, Washington
Re: "With friends like this............I feel blessed!" My new engine.
I was hoping to learn something and be able to answer your question, but I'm still not sure. I started looking at mh-aerotools.de and then Sceptreflight.net, but can't find any good power ratings.duke.johnson wrote:Do you guys think the Sportsman would fly a Jr Ringmaster? I usually fly them on an OS 15FP.
I did see one report on the slightly more powerful Olympic .15 claiming .287bhp@16,500 rpm. And .72bhp/ounce. I think both are pretty impressive engines. My guess is yes, it would pull the Ringmaster through loops and wingovers. The smaller but similar designed Space Hopper .049 is said to be nearly as powerful as an early Tee Dee .049, if that's any sort of clue. It's hard for me to believe the Sportsman can out-pull an OS .15fp though. The LA .15 has .410bhp@ 17,000 rpm.
That's all I've got. Not much help though.
Rusty
Last edited by RknRusty on Fri Jul 17, 2015 10:25 pm; edited 1 time in total
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Re: "With friends like this............I feel blessed!" My new engine.
http://www.sceptreflight.com/Model%20Engine%20Tests/Cox%20Olympic%20and%20Sportsman.html
Link will show it's power I have some Cox props made for the Sportsman they had them pitched for a CL plane.
Props are 6x6 for a CL Comanche
Year 1959:
8x4 at 13k
8x3 at 15k
Modern props at say 15% Nitro:
7x5 APC 14.6K (guess)
7x4 APC 15.8k
Olympic puts out an extra 500+ rpm in general as per the link.
Check out the weights: Shown with the Cox 6x6
7.4oz vs 4.72oz (less without the throttle)
Link will show it's power I have some Cox props made for the Sportsman they had them pitched for a CL plane.
Props are 6x6 for a CL Comanche
Year 1959:
8x4 at 13k
8x3 at 15k
Modern props at say 15% Nitro:
7x5 APC 14.6K (guess)
7x4 APC 15.8k
Olympic puts out an extra 500+ rpm in general as per the link.
Check out the weights: Shown with the Cox 6x6
7.4oz vs 4.72oz (less without the throttle)
Last edited by 1/2A Nut on Fri Jul 17, 2015 11:01 pm; edited 8 times in total
1/2A Nut- Top Poster
- Posts : 3426
Join date : 2013-10-20
Age : 60
Location : Brad in Texas
Re: "With friends like this............I feel blessed!" My new engine.
So long story short. Maybe
duke.johnson- Diamond Member
- Posts : 1734
Join date : 2012-11-05
Age : 52
Location : Rochester, Washington
Re: "With friends like this............I feel blessed!" My new engine.
Haha, yeah, you said it better than I did, with a lot less words.duke.johnson wrote:So long story short. Maybe
_________________
Don't Panic!
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
...and never Ever think about how good you are at something...
while you're doing it!
My Hot Rock & Blues Playlist
RknRusty- Rest In Peace
- Posts : 10869
Join date : 2011-08-10
Age : 68
Location : South Carolina, USA
Spring
Hi Duke,
Found a spring for the .15 along with some other parts . I have 2 needle valves and springs #1109 ,1 reed valve #1108 , 1 reed retainer#1107, 1propscrewand washer #1119 and what could be a muffler for the .15
but missing the spring steel part that goes around the out side ( controls exhaust flow and noise ).except for the muffler and spring everything is in the original packing envelopes . I would be willing to sell or trade .
Mike1484
M.E.C.A.4379
Found a spring for the .15 along with some other parts . I have 2 needle valves and springs #1109 ,1 reed valve #1108 , 1 reed retainer#1107, 1propscrewand washer #1119 and what could be a muffler for the .15
but missing the spring steel part that goes around the out side ( controls exhaust flow and noise ).except for the muffler and spring everything is in the original packing envelopes . I would be willing to sell or trade .
Mike1484
M.E.C.A.4379
Mike1484- Gold Member
- Posts : 296
Join date : 2011-10-28
Age : 75
Location : Northern Ohio
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