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Cox Engine of The Month
some thoughts for bernie
Page 1 of 2
Page 1 of 2 • 1, 2
some thoughts for bernie
Bernie have you considered manufacturing cox 010? and 020 ? just a thought? what are the pros and cons? is it worth it?
I'm not trying to be nosey just a thought considering...
Greg
I'm not trying to be nosey just a thought considering...
Greg
cox24711- Platinum Member
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Age : 21
Location : Noosa Queensland Australia
Re: some thoughts for bernie
Greg,
That topic was brought up many times in the past. In short the cost of producing them would be too much to make any money off of new engine sales.
Believe it or not, very few Cox engines get actually flown even less so for the .010's and .20's.
People would rather collect them and reminisce about the good ol' days.
That topic was brought up many times in the past. In short the cost of producing them would be too much to make any money off of new engine sales.
Believe it or not, very few Cox engines get actually flown even less so for the .010's and .20's.
People would rather collect them and reminisce about the good ol' days.
Cribbs74- Moderator
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Age : 50
Location : Tuttle, OK
Re: some thoughts for bernie
In some cases hoard them.......
Probably be north of $200/ea if produced new today with the precision involved and NRE tooling costs for the plastic molds. The ROI would be decades long. Just not feasible.
Probably be north of $200/ea if produced new today with the precision involved and NRE tooling costs for the plastic molds. The ROI would be decades long. Just not feasible.
Jason_WI- Top Poster
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Re: some thoughts for bernie
Jason_WI wrote:In some cases hoard them.......
Probably be north of $200/ea if produced new today with the precision involved and NRE tooling costs for the plastic molds. The ROI would be decades long. Just not feasible.
yeah that too...
Suppose that came off a little snarky, All I mean't is that more people collect than use.
Cribbs74- Moderator
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Posts : 11907
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Re: some thoughts for bernie
Cribbs74 wrote:Jason_WI wrote:In some cases hoard them.......
Probably be north of $200/ea if produced new today with the precision involved and NRE tooling costs for the plastic molds. The ROI would be decades long. Just not feasible.
yeah that too...
Suppose that came off a little snarky, All I mean't is that more people collect than use.
Not snarky at all. I bet less than 100 TD .010 engines are in regular use today. Probably more TD .020 engines used with the FF guys than the .010 engines.
Jason_WI- Top Poster
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Re: some thoughts for bernie
but i would use one !
cox24711- Platinum Member
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Location : Noosa Queensland Australia
Re: some thoughts for bernie
Greg,
I think you will find that the .049 is more versitile and more practical for day to day use. However, if you are patient and hang around in the hobby for a long time you will eventually own one.
Assuming Jason doesn't buy all of them...
I think you will find that the .049 is more versitile and more practical for day to day use. However, if you are patient and hang around in the hobby for a long time you will eventually own one.
Assuming Jason doesn't buy all of them...
Cribbs74- Moderator
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Posts : 11907
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Re: some thoughts for bernie
Cribbs74 wrote:
Assuming Jason doesn't buy all of them...
I think they multiply in my mailbox. Every once and a while one or two appear.
Jason_WI- Top Poster
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Posts : 3123
Join date : 2011-10-09
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Re: some thoughts for bernie
These days we have CNC machines sure they wont churn out products super fast but once the
software is set up you can just feed them metal and let the tech do the work. Man power would
be reduced to a handful of folks. The smaller the engine the faster the cutting is completed.
Imagine a micro Cox .0049 RC (simple throttle sleeve) and CL versions. With today's 1.5g servos one could
fly a nice 3ch plane right in the back yard with minimum noise. Round the pole 2ch or CL with 12ft lines.
RC airboats in the pool
Simple TD engine design with remote fuel tank to reduce production cost. Simple bladder tank out of
surgical tubing. No micro size reeds or associated machining. An engine that size wont require much beef
to stay together and crashes will be hard to break anything at all.
- all aluminum case integrated carb.
- bronze sleeve for the crank
- no plastic carb body no integrated assemblies needed up front.
Micro Parts:
Sleeved Case / Carb - $18
Back plate $4
NV assembly - $7
Crank with threads up front - $11
Prop plate could be a simple washer with a spinner nut. $4
Piston / Rod - $14
Cylinder - $9
2 fin glow plug $9 / no gasket needed
Throttle sleeve $5
Wrench for: glow plug, back plate and prop nut $4
$85.00 RC / $80.00 CL / FF
If 2000 units sold $170k if all RC
If Vendor Cost $95k / Revenue $75k
Props 3 for $10
2Dx1P RC / CL
2.5x.75 FF / CL / RC
3x.5 FF
Imagine how long a Quart of 25% nitro will last.
1 screw per each beam to mount the engine.
software is set up you can just feed them metal and let the tech do the work. Man power would
be reduced to a handful of folks. The smaller the engine the faster the cutting is completed.
Imagine a micro Cox .0049 RC (simple throttle sleeve) and CL versions. With today's 1.5g servos one could
fly a nice 3ch plane right in the back yard with minimum noise. Round the pole 2ch or CL with 12ft lines.
RC airboats in the pool
Simple TD engine design with remote fuel tank to reduce production cost. Simple bladder tank out of
surgical tubing. No micro size reeds or associated machining. An engine that size wont require much beef
to stay together and crashes will be hard to break anything at all.
- all aluminum case integrated carb.
- bronze sleeve for the crank
- no plastic carb body no integrated assemblies needed up front.
Micro Parts:
Sleeved Case / Carb - $18
Back plate $4
NV assembly - $7
Crank with threads up front - $11
Prop plate could be a simple washer with a spinner nut. $4
Piston / Rod - $14
Cylinder - $9
2 fin glow plug $9 / no gasket needed
Throttle sleeve $5
Wrench for: glow plug, back plate and prop nut $4
$85.00 RC / $80.00 CL / FF
If 2000 units sold $170k if all RC
If Vendor Cost $95k / Revenue $75k
Props 3 for $10
2Dx1P RC / CL
2.5x.75 FF / CL / RC
3x.5 FF
Imagine how long a Quart of 25% nitro will last.
1 screw per each beam to mount the engine.
Last edited by 1/2A Nut on Fri Jan 29, 2016 2:14 am; edited 1 time in total
1/2A Nut- Top Poster
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Re: some thoughts for bernie
then how come they were made so cheap in the 90'S?
cox24711- Platinum Member
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Location : Noosa Queensland Australia
Re: some thoughts for bernie
Jason_WI wrote:Cribbs74 wrote:Jason_WI wrote:In some cases hoard them.......
Probably be north of $200/ea if produced new today with the precision involved and NRE tooling costs for the plastic molds. The ROI would be decades long. Just not feasible.
yeah that too...
Suppose that came off a little snarky, All I mean't is that more people collect than use.
Not snarky at all. I bet less than 100 TD .010 engines are in regular use today. Probably more TD .020 engines used with the FF guys than the .010 engines.
Even if these are the rarest in NIB condition and maybe the most expensive I keep using them. Practically indestructible critters. I mean I have looooooooooong hours on some of them with virtually no sign of use. I put a few vids about my RC TD 010 bird Roaring 20 on you tube https://youtu.be/Z1k8YTLegTo
balogh- Top Poster
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Re: some thoughts for bernie
Because they had the molds and tools, which are now worn out, or have been either discarded or destroyed.cox24711 wrote:then how come they were made so cheap in the 90'S?
_________________
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
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Re: some thoughts for bernie
balogh wrote:
Even if these are the rarest in NIB condition and maybe the most expensive I keep using them.
"Born to Run"
Kim- Top Poster
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Location : South East Missouri
Re: some thoughts for bernie
Muwahahaha backatcha!
https://youtu.be/wXL2t4eKn-I
HOLY CRAP, 2,299 views
https://youtu.be/PUZz-uQNZN4
Hard to believe that plane is still one of my frequent fliers. My RR1 doesn't have the cool ribbed crankcase, but it's still an RR1, a badass little runner! Mudhen gave me that engine on my birthday just because he thought I'd have fun with it... He was right.
Rusty
https://youtu.be/wXL2t4eKn-I
HOLY CRAP, 2,299 views
https://youtu.be/PUZz-uQNZN4
Hard to believe that plane is still one of my frequent fliers. My RR1 doesn't have the cool ribbed crankcase, but it's still an RR1, a badass little runner! Mudhen gave me that engine on my birthday just because he thought I'd have fun with it... He was right.
Rusty
_________________
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
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Re: some thoughts for bernie
Nice flyin Rusty. that looked like a blast
akjgardner- Diamond Member
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Re: some thoughts for bernie
Hi Gardner, yeah I've gotten a lot of fun out of that Satan. The addition of a Tee Dee .049 on pressure really lit it up. Whenever I want to fly 1/2A, it comes along. Right now the clevis is broken off the control rod, so I need to do a little fixing. That linkage takes a lick every time it lands.akjgardner wrote:Nice flyin Rusty. that looked like a blast
Rusty
_________________
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
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Location : South Carolina, USA
Re: some thoughts for bernie
RknRusty wrote:Hi Gardner, yeah I've gotten a lot of fun out of that Satan. The addition of a Tee Dee .049 on pressure really lit it up. Whenever I want to fly 1/2A, it comes along. Right now the clevis is broken off the control rod, so I need to do a little fixing. That linkage takes a lick every time it lands.akjgardner wrote:Nice flyin Rusty. that looked like a blast
Rusty
As you fix it put a chunk of silicone fuel line on to soften the blow to the clevis... but I might be misunderstanding the problem.
Phil
pkrankow- Top Poster
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Re: some thoughts for bernie
That's probably a good idea. It broke off right behind the clevis.pkrankow wrote:As you fix it put a chunk of silicone fuel line on to soften the blow to the clevis... but I might be misunderstanding the problem.
Phil
The biggest thing is, last time I landed, for some reason it was being impossible to control, and I came in on final at 90 mph.
I thought maybe the lines were sticking together. It had happened once before in the rain and I blamed wet lines. That time, it suddenly started flying fine after the first minute. But when it did it again, this was a dry day. Old dirty spiderwire seemed like a good explanation. Maybe something else was wrong, like maybe the clevis was breaking during flight. Both times, the loops were unusually large too. In any case, I will throw those 45' lines away and start fresh. Sounds too long for a Satan, but this one really hauls ass with the TD.
Have we hijacked the thread yet? I think it's a dead thread anyway.
Rusty
_________________
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
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Re: some thoughts for bernie
then why don't they make them with separate fuel tanks and metal carburettor body's ?if it is just the plastic that they cannot produce then don't use plasticRknRusty wrote:Because they had the molds and tools, which are now worn out, or have been either discarded or destroyed.cox24711 wrote:then how come they were made so cheap in the 90'S?
cox24711- Platinum Member
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Re: some thoughts for bernie
The machinery is more than likely long gone and the cost to reproduce it would not offset the return. Smaller engines are generally more money than larger engines. The tolerances have to be better and truthfully there just isn't a market for it. The return would require thousands just to capitalize on the initial investment. Ken
Ken Cook- Top Poster
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Re: some thoughts for bernie
3D Printing technology is to the point to where you could probably print you one. Don't know how the metallurgy would be on it. Im sure it would have to be heat treated, Just thinking out loud
akjgardner- Diamond Member
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Re: some thoughts for bernie
You could try the idea on kickstarter and see how the public likes it it could be a hit!
cox24711- Platinum Member
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Re: some thoughts for bernie
Ken Cook wrote: The machinery is more than likely long gone and the cost to reproduce it would not offset the return. Smaller engines are generally more money than larger engines. The tolerances have to be better and truthfully there just isn't a market for it. The return would require thousands just to capitalize on the initial investment. Ken
Right, Greg, that's what I meant in my answer, I was talking about the metal parts as well. Maybe when Starfleet allows public access to replicators, we can make all we want. Not holding my breath though Lol.
Rusty
_________________
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: some thoughts for bernie
Modern micro engine CNC tolerance solved.
Small engine means less metal and faster CNC completion.
Aluminum:
- Case with integrated venturi and bronze sleeve
- Threaded Back plate
- Simple prop plate
- 2 fin glow plug
Steel:
Crank with front induction
Cylinder
Ball socket piston / rod
Throttle sleeve
NV with brass housing
These engines can be made with a profit easy as
we are all conditioned to pay higher prices these days.
Small engine means less metal and faster CNC completion.
Aluminum:
- Case with integrated venturi and bronze sleeve
- Threaded Back plate
- Simple prop plate
- 2 fin glow plug
Steel:
Crank with front induction
Cylinder
Ball socket piston / rod
Throttle sleeve
NV with brass housing
These engines can be made with a profit easy as
we are all conditioned to pay higher prices these days.
1/2A Nut- Top Poster
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Re: some thoughts for bernie
RknRusty wrote:Ken Cook wrote: The machinery is more than likely long gone and the cost to reproduce it would not offset the return. Smaller engines are generally more money than larger engines. The tolerances have to be better and truthfully there just isn't a market for it. The return would require thousands just to capitalize on the initial investment. Ken
Right, Greg, that's what I meant in my answer, I was talking about the metal parts as well. Maybe when Starfleet allows public access to replicators, we can make all we want. Not holding my breath though Lol.
Rusty
Dang it. Now you know how I got all my engines.
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