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Conference vmszoo::rc

Title:Welcome To The Radio Control Conference
Notice:dir's in 11, who's who in 4, sales in 6, auctions 19
Moderator:VMSSG::FRIEDRICHS
Created:Tue Jan 13 1987
Last Modified:Thu Jun 05 1997
Last Successful Update:Fri Jun 06 1997
Number of topics:1706
Total number of notes:27193

1414.0. "Glow plug current" by CSSREG::SPILLER () Thu Mar 19 1992 09:36

    
    
    
    What is the "normal" current of a glow plug @ 1 1/2 volts. I measured
    3.8 amps with 1.25 volts taken right at the engine block and the clip
    of the glow plug. 
    
    Any one else ever take this measurement? I looked under all the glow
    plug topics and found no information on glow plug current values.
    
    Jim
    
     
T.RTitleUserPersonal
Name
DateLines
1414.1Yup, that's about rightCLOSUS::TAVARESJohn-Stay low, keep movingThu Mar 19 1992 10:003
That's about right, though it seems that 3.0 amps is a little closer
to nominal.  Makes you appreciate the job that our glow plug warming
gear does!
1414.2About RightLEDS::WATTThu Mar 19 1992 16:2211
    That's in the right ballpark.  It will change greatly if you're engine
    is flooded, and cold plugs run a higher current than hot plugs. 
    Basicaly, you can't afford any extra resistance in the glow plug
    circuit if you want it to work well.  I bought an onboard glow system
    from Great Planes, and it barely lit the plug because of the wire
    resistance.  I had to replace all of the wire with much heavier guage
    wire to get it to work properly.  The clip on ni-starters are best with
    no long wires to get in the prop or to drop the voltage.
    
    Charlie