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HeliHobby . Ron’s HeliProz South . Century Helicopter

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Got Jet Fuel? Turbine Helicopters > JetCopter questions...
 
 
Bill Ludwig
Veteran
Location: Tucson, AZ

As I am impatiently waiting for my JetCopter to arrive, I've been asking a lot of questions. I've heard of two recent incidents that involved forgetting to unplug one or both of the kerosene tank vent lines. My questions regarding this are:

1) Can't the two tanks be connected to a common vent so you only have to unplug one line?

2) Why plug the vent lines at all in an unpressurized system?

3) Assuming you need to plug/unplug the vents, why not have a solenoid do that for you - just like the Powermax/Kerosine solenoids do? It seems the ECU could 'remember' to do that job more reliably than most of us.

Just trying to eliminate as many variables as possible.

- Bill 'waiting impatiently' Ludwig
02-19-2003 Over year old.
 
 
Jetkopter
Heliman
Location: Putnam Valley , New York

Hi Bill, the reason we plug the vent line is so we do not spill Jet A in the car during transport. I guess you could run both vents to a common shut off, I do not do that on mine. I have a ball valve on each vent line. The reason you need the valves is becuase the tanks are mounted high on the heli and tend to leak out of the vent when near capacity.I also close one vent during refueling to equalize the tanks if I have to.The are enough parts on a turbine already so I dont think you would want to add another mechanical part such as a solenoid to control the vent.The simple solution would be to write yourself a preflight check list and stick to it.
Brg,
Don DeSandre

Don DeSandre, JetCat rep
02-19-2003 Over year old.
 
 
Phil Cole
Veteran
Location: Redwood City CA

I used to plug my vent, mainly to keep the smell inside the tank from getting inside the van, if you know what I mean. The plug would also stop the drips if I overfilled. I could never suck all the fuel out of the vent when defuelling at the end of the day.

Deodorised heating kero doesn't smell too much, and I lost the plug, so now I don't bother.

If I did forget to remove the vent plug, the usual result was the filler tube fitting would blow, spraying kerosene all over the place. So, I never had the experience of flying with a plugged vent.

I had only one vent with the fuel tank arrangement I had. With teed feedlines, I don't see why you can't tee the vents. If you are going to use Jet-A the smell might be enough to warrant plugging it up if other people share your ride.
02-19-2003 Over year old.
 
 
Bill Ludwig
Veteran
Location: Tucson, AZ

Thanks for the explanations, guys.

- Bill
02-19-2003 Over year old.
 
 
DStJohn
Senior Heliman
Location: Ft. Collins, CO

Patience my boy Patience, all good things take time!

Dan St.John
East Coast Scale Helicopters Vario Field Rep
02-19-2003 Over year old.
 
 
Bill Ludwig
Veteran
Location: Tucson, AZ

I just spoke with Taylor at Vario today. He has test flown my JetCopter and shipped it out today. I'll get it Monday!! Thanks for the update on the exhaust system.

Good luck on that EX 135!

- Bill
02-21-2003 Over year old.
 
 
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MTA Hobbies . Model Rectifier Corp . Heli Wholesaler

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Got Jet Fuel? Turbine Helicopters > JetCopter questions...
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