Log in
Search
Latest topics
» Foam hand kids glider converted to 0.049 CLby roddie Today at 4:33 am
» Cox PT-19 Wing
by latole Today at 4:28 am
» Roddie-Rigger.. a 2005 original design
by roddie Today at 2:54 am
» Golden Bee basic running problem
by roddie Yesterday at 10:51 pm
» Simple Gliders
by rdw777 Yesterday at 6:25 pm
» Weird search for a single comic from an old Mad Magazine
by Kim Yesterday at 1:44 pm
» Scientific "Zipper" Build...Zipper Flys!.
by getback Yesterday at 7:27 am
» Cox .049 Tee Dee engines back in stock (limited availablility)
by GallopingGhostler Yesterday at 1:05 am
» Very off-topic.........Time passes and not always for the best......
by rsv1cox Thu Jul 25, 2024 2:47 pm
» Jim Walker Bonanza etc.
by rsv1cox Wed Jul 24, 2024 6:30 pm
» Throttles for Cox Tee Dee .049 / .020 / .010 engines --- videos
by sosam117 Wed Jul 24, 2024 8:54 am
» Introducing our Cox .049 TD Engines
by Admin Tue Jul 23, 2024 2:00 am
Cox Engine of The Month
July-2024
robot797's
![](https://i.servimg.com/u/f95/15/46/86/41/3_robo10.jpg)
"ULTIMITE COX 010: it has a clutch, E starter, throttle, exhaust, aluminum tank, aluminum venturi, gearbox with forward and reverse, and now its on a custom drawn and printed stand"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
robot797's
![](https://i.servimg.com/u/f95/15/46/86/41/3_robo10.jpg)
"ULTIMITE COX 010: it has a clutch, E starter, throttle, exhaust, aluminum tank, aluminum venturi, gearbox with forward and reverse, and now its on a custom drawn and printed stand"
![](https://i.servimg.com/u/f95/15/46/86/41/sponso12.png)
PAST WINNERS
tractor 5x3 propellers
Page 1 of 1
tractor 5x3 propellers
I'm not certain as to why these are not available but I can't seem to locate them. I recently purchased the Master Airscrew versions which are absolute crap. They have no blade area, no drive and are utterly useless. I sent them a e-mail and they said no one ever complained about them. Those who purchased them never used them obviously. On my twin, one engine running with a two bladed prop was faster than both running with the MA props. They're so thin bladed I even emailed them to find out if these were even the correct prop I ordered. Useless turds which are not exactly inexpensive.
I had about 12 three bladed Cox props brand new, all of them when flexed cracked. They went into the trash. All I see now is pushers available. I'm not certain if I'm correct on this but are pushers square tip and tractors radius tipped?
I had about 12 three bladed Cox props brand new, all of them when flexed cracked. They went into the trash. All I see now is pushers available. I'm not certain if I'm correct on this but are pushers square tip and tractors radius tipped?
Ken Cook- Top Poster
- Posts : 5542
Join date : 2012-03-27
Location : pennsylvania
Re: tractor 5x3 propellers
I have a couple of COX 3 bladed 5x3 tractor props with rounded blade tips and 5x3 triple bladed pushers with square tips. Luckily they do not show the micro-cracks some of the older black nylon COX props did that had to be discarded for fears of throwing blades when spinning.
Other than the 3bladed 5x3 COX props my favorites are the 2 bladed COX 5x4 that work very well for my sport flying purposes either on a beefed up 049 reedie or on a 049...051 TeeDee. They may flex a bit when spin at 22k+ but are very forgiving on harsh landings when the nose of the plane occasionally rubs the ground. Unlike the stiff and brittle, but aerodynamically superb APC-s, they never break. This is an important feature for me who usually fly over unmanicured grass, weed and rough terrain with no runway for small RC planes.
Other than the 3bladed 5x3 COX props my favorites are the 2 bladed COX 5x4 that work very well for my sport flying purposes either on a beefed up 049 reedie or on a 049...051 TeeDee. They may flex a bit when spin at 22k+ but are very forgiving on harsh landings when the nose of the plane occasionally rubs the ground. Unlike the stiff and brittle, but aerodynamically superb APC-s, they never break. This is an important feature for me who usually fly over unmanicured grass, weed and rough terrain with no runway for small RC planes.
balogh- Top Poster
Posts : 4803
Join date : 2011-11-06
Age : 65
Location : Budapest Hungary
Re: tractor 5x3 propellers
Ken Cook wrote:I'm not certain as to why these are not available but I can't seem to locate them. I recently purchased the Master Airscrew versions which are absolute crap. They have no blade area, no drive and are utterly useless. I sent them a e-mail and they said no one ever complained about them. Those who purchased them never used them obviously. On my twin, one engine running with a two bladed prop was faster than both running with the MA props. They're so thin bladed I even emailed them to find out if these were even the correct prop I ordered. Useless turds which are not exactly inexpensive.
I had about 12 three bladed Cox props brand new, all of them when flexed cracked. They went into the trash. All I see now is pushers available. I'm not certain if I'm correct on this but are pushers square tip and tractors radius tipped?
Hi Ken - assuming we are talking about the 3 blade ones here. The biggest issue with these is mold cost to run them. I've got some parts but it would basically require building a new frame for them (and custom at that since they are non standard inserts) with new hubs / ejector pins.
Unfortunately, I can echo your sentiments about the MA props.
![-](https://2img.net/i/empty.gif)
» Master Airscrew 3 blade tractor propellers
» All about your transportation
» Cox Pusher Props
» A actual tractor that has a motor that runs forward AND reverse!
» Please help me to identify this COX engine
» All about your transportation
» Cox Pusher Props
» A actual tractor that has a motor that runs forward AND reverse!
» Please help me to identify this COX engine
Page 1 of 1
Permissions in this forum:
You cannot reply to topics in this forum