Gas prop on an elecric plane?
12-05-2008, 10:41 PM
#1
Gas prop on an elecric plane?
New to electric flight but I have flown C/L for 35 yrs and R/C for 3. Just finished building a Barnstormer manufactured in the mid 90's and intended for a .30 size glow engine. I have hung a Turnigy C4240-900 on the front. My question is, can I use a glow prop on this plane? I have a bunch of 9X4 and 9X6 glow props and several other sizes, that I would like to use up.
12-06-2008, 04:50 AM
#2
Senior Member
RE: Gas prop on an elecric plane?
I've done that on a couple of my electrics with no problems. The glow props aren't quite as efficient as the electric versions, but will work fine if you can get the right hole size in the prop for your prop adapter.
12-06-2008, 07:47 AM
#3
RE: Gas prop on an elecric plane?
The prop hole diameter is no problem. The emotor shaft is 8mm so I would have to ream the prop anyway. After thinking about it, the prop shouldn't care whether the 8000 rpm came from a piston or a magnet. 8K rpm is 8K rpm. Thanks for your input.
12-06-2008, 01:55 PM
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RE: Gas prop on an elecric plane?
I thought that E props were thinner and less pitch to allow for higher rpm. This reduces the load on the motor, thus less amps drawn, thus prolongs battery and motor life.
12-06-2008, 02:49 PM
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RE: Gas prop on an elecric plane?
E props are built lighter.,...
a glow prop in the 9x6 range would be waaaay too heavy for an electric application needing a 9x6 E prop...
you are using valuable resources just to get the prop spinning and keep it spinning.. hard on the motor, hard on the battery...
a glow prop in the 9x6 range would be waaaay too heavy for an electric application needing a 9x6 E prop...
you are using valuable resources just to get the prop spinning and keep it spinning.. hard on the motor, hard on the battery...
12-06-2008, 04:08 PM
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RE: Gas prop on an elecric plane?
bgerth, use what you have, I have been using the Turnigy C5055-600 motors on my converted aircraft and just using standard APC props. I use 6cell 5000mah packs in all of them and get almost 30 min flight time with no overheating of either the motor or battery. All you have to watch is that you are not over drawing the battery or over loading the motor. I think the you are right 8k is 8k no matter how you get it. I have tried "E props" and found NO difference in Amp draw or RPM and NO extra flight time.
Cheers
Cheers
12-22-2008, 07:34 PM
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RE: Gas prop on an elecric plane?
BGerth
Look at two props of the same indicated size and pitch, you will see a definite difference in pitch for the same size. Most elec have a higher pitch and are of lighter construction. A glow prop will work, but will not work well.
Look at two props of the same indicated size and pitch, you will see a definite difference in pitch for the same size. Most elec have a higher pitch and are of lighter construction. A glow prop will work, but will not work well.
