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November-2020
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Post  batjac on Thu Aug 27, 2020 1:05 am

a betancourt wrote:Does anybody have information on the Wen-Mac stick control like the one on the bottom right of the ad?

I actually managed to find and purchase one of these a few years ago. I just pulled it off the shelf to look at again. Unfortunately, it's such an intricate piece of machinery that you'd need a full machine shop to replicate. I'll try to make time tomorrow to take pictures of the assembly and the operating instructions.

The Remote Mark
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Post  aspeed on Thu Aug 27, 2020 9:19 am

I like that remote stick idea.  Always thought it would be good for flying speed models that I had trouble keeping up with. There was another attempts at making one.  One was called Revolution that was about $200 not too long ago.  It seems to have vanished, or is not being advertised any more.  There was an older version many years ago that was well made, and likely expensive in the day.  https://www.facebook.com/PhillyFliersCL/photos/a.513142608755878.1073741825.513140418756097/731890976881039/?type=1&theater  The yellow part of it was pretty much the handle.
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Post  Amclaussen on Sat Nov 07, 2020 9:17 pm

rsv1cox wrote:First flip starting?  15 second start from mount to fuel?  I once cranked on one of the little darlings for a half hour becoming so frustrated that I almost did a Wen hurl even before I knew of a Fox hurl.

Seriously, immediately thereafter I found a Cox Babe Bee which thankfully started right off renewing my faith in glow engines.  Smile

Bob

ABSOLUTELY! A dear uncle bought me a Wen-Mac 049 powered control-line, kind of "Jet" when I was seven years old, a beautiful plane that had swept back wingswith wing-tip tanks and a triangular shaped stabilizer, tricycle landing gear and a canopy. (BTW:Someone knows it's name?). One day my dear father decided it was time to "Break-in the engine", so he took a good reading at the instruction sheet... Perhaps too good, as the damn little engine refused to start for a good full couple of hours of futile attempts! As it happened; at our high altitude of 7,350 ft asl here in Mexico City, resulted in a wrong needle valve setting (I don't remember exactly, as I was under 7 years old and it was around 1962!), but probably the instructions dictated something like "three and a half turns open", but at that "golden" setting the engine was too rich and never started. some days latter, my father took me to a local Hobby Shop (that was like being in Heaven!), where an experienced gentleman was able to get it perfectly running in less than three minutes... it happened that the "instructions sheet, like most printed materials of that era, in a probable attempt to show "how easy" it was, lacked any indications about both a flooded engine or a too lean one... and the needle setting was quite critical and had to be adjusted between two and two and a quarter turns only, and VERY carefully adjusted to max the RPMs.

In a sharp contrast, my neighbor received a Cox olive green P-51B model with a Cox product engine, and even in our too inexpert hands, we were able to get it running after less than half an hour without any help from our older relatives. As it seems, the Reed Valve of the Cox engines was easier to start than any Wen-Mac or rotary valve Tee Dees or Medallions ever were!
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Post  rsv1cox on Sun Nov 08, 2020 8:57 am

Amclaussen wrote:
rsv1cox wrote:First flip starting?  15 second start from mount to fuel?  I once cranked on one of the little darlings for a half hour becoming so frustrated that I almost did a Wen hurl even before I knew of a Fox hurl.

Seriously, immediately thereafter I found a Cox Babe Bee which thankfully started right off renewing my faith in glow engines.  Smile

Bob

ABSOLUTELY!  A dear uncle bought me a Wen-Mac 049 powered control-line, kind of "Jet" when I was seven years old, a beautiful plane that had swept back wingswith wing-tip tanks and a triangular shaped stabilizer, tricycle landing gear and a canopy.  (BTW:Someone knows it's name?). One day my dear father decided it was time to "Break-in the engine", so he took a good reading at the instruction sheet... Perhaps too good, as the damn little engine refused to start for a good full couple of hours of futile attempts!  As it happened; at our high altitude of 7,350 ft asl here in Mexico City,  resulted in a wrong needle valve setting (I don't remember exactly, as I was under 7 years old and it was around 1962!), but probably the instructions dictated something like "three and a half turns open", but at that "golden" setting the engine was too rich and never started.  some days latter, my father took me to a local Hobby Shop (that was like being in Heaven!), where an experienced gentleman was able to get it perfectly running in less than three minutes... it happened that the "instructions sheet, like most printed materials of that era, in a probable attempt to show "how easy" it was, lacked any indications about both a flooded engine or a too lean one... and the needle setting was quite critical and had to be adjusted between two and two and a quarter turns only, and VERY carefully adjusted to max the RPMs.    

In a sharp contrast, my neighbor received a Cox olive green P-51B model with a Cox product engine, and even in our too inexpert hands, we were able to get it running after less than half an hour without any help from our older relatives. As it seems, the Reed Valve of the Cox engines was easier to start than any Wen-Mac or rotary valve Tee Dees or Medallions ever were!

Hey amc, I don't know whether to welcome you, or ask - where ya been.  Join 2017 with 2 posts.  Smile

Funny, I have rotary valve engines that start right off Testors etc. yet some that never will, same compressions and NV settings.  

7,350 feet is up there, we are at a mere 1400 feet here in West Virginia.  

Don't stay away so long.
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Post  roddie on Mon Nov 09, 2020 9:13 pm

rsv1cox wrote:
Amclaussen wrote:
rsv1cox wrote:First flip starting?  15 second start from mount to fuel?  I once cranked on one of the little darlings for a half hour becoming so frustrated that I almost did a Wen hurl even before I knew of a Fox hurl.

Seriously, immediately thereafter I found a Cox Babe Bee which thankfully started right off renewing my faith in glow engines.  Smile

Bob

ABSOLUTELY!  A dear uncle bought me a Wen-Mac 049 powered control-line, kind of "Jet" when I was seven years old, a beautiful plane that had swept back wingswith wing-tip tanks and a triangular shaped stabilizer, tricycle landing gear and a canopy.  (BTW:Someone knows it's name?). One day my dear father decided it was time to "Break-in the engine", so he took a good reading at the instruction sheet... Perhaps too good, as the damn little engine refused to start for a good full couple of hours of futile attempts!  As it happened; at our high altitude of 7,350 ft asl here in Mexico City,  resulted in a wrong needle valve setting (I don't remember exactly, as I was under 7 years old and it was around 1962!), but probably the instructions dictated something like "three and a half turns open", but at that "golden" setting the engine was too rich and never started.  some days latter, my father took me to a local Hobby Shop (that was like being in Heaven!), where an experienced gentleman was able to get it perfectly running in less than three minutes... it happened that the "instructions sheet, like most printed materials of that era, in a probable attempt to show "how easy" it was, lacked any indications about both a flooded engine or a too lean one... and the needle setting was quite critical and had to be adjusted between two and two and a quarter turns only, and VERY carefully adjusted to max the RPMs.    

In a sharp contrast, my neighbor received a Cox olive green P-51B model with a Cox product engine, and even in our too inexpert hands, we were able to get it running after less than half an hour without any help from our older relatives. As it seems, the Reed Valve of the Cox engines was easier to start than any Wen-Mac or rotary valve Tee Dees or Medallions ever were!

Hey amc, I don't know whether to welcome you, or ask - where ya been.  Join 2017 with 2 posts.  Smile

Funny, I have rotary valve engines that start right off Testors etc. yet some that never will, same compressions and NV settings.  

7,350 feet is up there, we are at a mere 1400 feet here in West Virginia.  

Don't stay away so long.

Hey Robert, Smile I couldn't find the 1st quote.. (First flip starting?) in this thread.. but wanted to reply to that. The Hurl thing made me chuckle.. although I'm sorry that you've had some bad luck. I probably have one of those engines. You sent me several for-parts engines in box a few years ago. I've since come into a few more.

I tried (also unsuccessfully..) to start a later model Testors/McCoy variant (FRV). I can't blame the "engine"... I didn't give it much of a chance. I honestly think that new-condition head-gaskets would make a difference. The Cox .049/.051 engines can utilize that awesome Tee Dee Aluminum spinner for quick-blips with an electric starter. It gets an engine that's down on compression; going again. Tougher to get a strong-enough spinner, for attachment with a prop-nut.. like the Wen-Mac/McCoy-Testors. They have a 6-32 externally-threaded crankshaft. A 6-32 threaded spinner-nut would be slick.. and probably aid in starting these engines by spinning-over with a 1/2A electric starter.

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Post  roddie on Tue Nov 10, 2020 8:30 pm

I don't hear much talk about propellers when it comes to these particular .049 glow-engines. I have a good supply of 5 and 6 inch diameter propellers.

I currently have a 6"d. X 3"p. Zinger-brand woody, mounted on an early Testors/McCoy FRV engine.

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Most all of my 1/2A propellers have a 1/8" diameter hub-hole, sized for a 5-40 threaded prop-screw (ala Cox/OK Cub.. and probably others). This engine's crankshaft OD is .160" and the nearest "commonly available" drill-bit size is 11/64" (.173") which is a little over-size so I had to enlarge the hub-hole. A #20 (Machinist) drill-bit has a .161" diameter. That's probably what I used to enlarge the hub-hole in the Zinger prop. I think that it's well-worth having a set of #1-60 (Machinist-size) drills.. if you spend a good amount of time in this hobby.

If the engine is capable of running well.. is that propeller "too much" for it?

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Post  getback on Wed Nov 11, 2020 7:05 am

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