YS 63 FZ RPM
10-20-2008, 10:31 PM
#26
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RE: YS 63 FZ RPM
I am building a G&P 104" PBY-5A, 23-25lbs...It was suggested to use two of these on it...The biggest prop would be in the 12" range...Would the concensus be that these would provide plenty of power to fly it off water as well at "scale speeds". Would using 3-bladed props be an advantage over the standard 2-blades. Keep in mind that I would be flying this aircraft at 5800ft here in the Denver area...MTIA...Kevin in Denver
10-21-2008, 12:48 AM
#27
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RE: YS 63 FZ RPM
Kevin,
This question does not belong in the "Tachometer Readings" forum... Neither does it apply to this specific thread.
It belongs in general discussion, since you are neither asking about the RPM this engine is capable of, nor are you reporting the same...
It belongs not in the engines forum, but in an open flying discussion forum.
I will report it, since you are very new here.
Welcome aboard!
This question does not belong in the "Tachometer Readings" forum... Neither does it apply to this specific thread.
It belongs in general discussion, since you are neither asking about the RPM this engine is capable of, nor are you reporting the same...
It belongs not in the engines forum, but in an open flying discussion forum.
I will report it, since you are very new here.
Welcome aboard!
05-31-2009, 10:50 PM
#28
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RE: YS 63 FZ RPM
i have a Y S 63 on a mojo it turns a APC 14X4W at 12300 on cool power omega 15% medium smoke and the motor head temp is 260 F. the low speed needle is out alot but is pulls great . i live at 750 asl . thanks swanny wa hoo brother
05-31-2009, 11:45 PM
#29
Senior Member
RE: YS 63 FZ RPM
ORIGINAL: iflyrc12
I have a YS .63FZ on a Mojo. It turns an APC 14X4W at 12,300 RPM, on Cool Power Omega 15% nitro, medium smoke and the motor head temp. is 260°F. The low speed needle is out a lot but is pulls great . I live at 750 ft. ASL . Thanks Swanny wa hoo brother.
I have a YS .63FZ on a Mojo. It turns an APC 14X4W at 12,300 RPM, on Cool Power Omega 15% nitro, medium smoke and the motor head temp. is 260°F. The low speed needle is out a lot but is pulls great . I live at 750 ft. ASL . Thanks Swanny wa hoo brother.
Your engine will run better on 20% nitro, or more.
The altitude you fly at is irrelevant (the RPM does not change significantly at greatly differing altitudes) and the actual value of the head temperature is equally unimportant... If the engine runs well; its head temperature is 'correct'...
Yes, 'correct' is the right numerical value for an engine's head temperature and it does not have to be quoted, or measured (if you were suckered into buying that piece of junk (IRT)).
If the head is too cold, or too hot; the engine will be a bad dog...
12-19-2009, 08:15 AM
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RE: YS 63 FZ RPM
Hello,
I have 2 63S and use them with Master 13x6 and Graupner sonic 13x6, I get a peak of 11.200 that I lower to 10.900 for flying. I use homemade fuel with 22% KL198 and 25% nitro.
Also in a 53fz with same prop and same fuel I get 10.050 peak and 9700 for flying.
Awesome engines i think.
Carlos
I have 2 63S and use them with Master 13x6 and Graupner sonic 13x6, I get a peak of 11.200 that I lower to 10.900 for flying. I use homemade fuel with 22% KL198 and 25% nitro.
Also in a 53fz with same prop and same fuel I get 10.050 peak and 9700 for flying.
Awesome engines i think.
Carlos
