Pressure tap for a ducted fan?
07-09-2002, 02:29 PM
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Pressure tap for a ducted fan?
Can anyone tell me where or how to pressurize the fuel tank on my jet?It is a OS91 ducted fan with a byron fan and pipe and I would like to put a pressur nipple on the pipe but need to know where.Thanks Bill
07-09-2002, 04:46 PM
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pressure nipple
jethead is right on--widest part of the pipe.
You can use a long wire bent on the tip, tack glue a nut on the wire and stick it inside the pipe, line it up with the hole and thread the presure nipple into it using red locktite.....
You can use a long wire bent on the tip, tack glue a nut on the wire and stick it inside the pipe, line it up with the hole and thread the presure nipple into it using red locktite.....
07-14-2002, 01:32 AM
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Pressure tap for a ducted fan?
If your pipe is a muffled tuned pipe, the rear (or in the case of a Byron pipe-the forward rounded end) is the same diameter. Where the tapered section joins the straight section is normally, in an unmuffled pipe, where the widest section would be. That is the point where the pressure nipple should be placed.
Joe
Joe
07-14-2002, 07:54 AM
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Pressure tap for a ducted fan?
Why not use the Ramtec Pitot Pressure Tap which gets the pressure from the tank directly behind the fan. Doesn't use the exhaust.
07-14-2002, 05:05 PM
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Pressure tap for a ducted fan?
I used to run Byron systems without pipe pressure. 
After I had the line to the pipe fall off and my engine quit, I stopped using pipe pressure.
Just richen it up 'til it runs right and leave the vent line open to the atmosphere
After I had the line to the pipe fall off and my engine quit, I stopped using pipe pressure.
Just richen it up 'til it runs right and leave the vent line open to the atmosphere
