1/2A Throttling
03-18-2017, 10:34 AM
#26
1/4th A
https://www.youtube.com/watch?v=ZKHoiI_dz3g
Published on Mar 11, 2017
TD .020 with RC Carb Cox 4.5Dx2P Prop
G-Mark .030 RC carb threaded to fit the aluminum carb body
Cox muffler, aluminum back plate, 1 shim, Cox 4.5Dx2P prop
17,472 best read open exhaust / 16.1k with muffler 8k idle.
Fuel tank was too elevated to be an ideal setup.
SPI cylinder needs to be shimmed. Stock muffler is restrictive
but nice and quite. A machined header for muffler options would
be a big treat. 30.8g as shown with prop and muffler.
The die to cut the threads is: 11/64 - 40. This thread was known
to be used with Singer Sewing Machines making part replacement
more exclusive to being sold by that company. Matt with EX Model Engines
provided the custom die.
http://www.exmodelengines.com/home.php
https://www.youtube.com/watch?v=ZKHoiI_dz3g
Published on Mar 11, 2017
TD .020 with RC Carb Cox 4.5Dx2P Prop
G-Mark .030 RC carb threaded to fit the aluminum carb body
Cox muffler, aluminum back plate, 1 shim, Cox 4.5Dx2P prop
17,472 best read open exhaust / 16.1k with muffler 8k idle.
Fuel tank was too elevated to be an ideal setup.
SPI cylinder needs to be shimmed. Stock muffler is restrictive
but nice and quite. A machined header for muffler options would
be a big treat. 30.8g as shown with prop and muffler.
The die to cut the threads is: 11/64 - 40. This thread was known
to be used with Singer Sewing Machines making part replacement
more exclusive to being sold by that company. Matt with EX Model Engines
provided the custom die.
http://www.exmodelengines.com/home.php
03-18-2017, 07:23 PM
#27
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1/2A starting incident.
Report: Oops! Forgot to loop the wires around to stop them from falling into the prop..
So I made a whole new 1/2A starter box this morning with a decent Cox clip on 24" plug in leads. It really helped when I peeled out the factory wires and soldered in some heavier parallel cord. The stock crimp connections were horrible.. the glow would waver brighter, dimmer at random.
Report: Oops! Forgot to loop the wires around to stop them from falling into the prop..
So I made a whole new 1/2A starter box this morning with a decent Cox clip on 24" plug in leads. It really helped when I peeled out the factory wires and soldered in some heavier parallel cord. The stock crimp connections were horrible.. the glow would waver brighter, dimmer at random.
