turn and burn

my reaper has a large main tank about 2.5 lt and a small headder tank. in the main tank i have a pick up pipe soft tigon tubbing with clunk and vent of the top .in the headder tank i have a fill point .pickup point for turbine small tube in the middle {3 pipe set up} and the feed from the main tank .i have pressured all the line no leaks but i keep getting air in the headder tank and the turbine flairs out not ever flight the model does get thrown around alot in the air but thats what they are for the turbine is a kj66 at 18lb fuel times from 6mins to 7.5 mins any ideas please as i never no if its going to flame out at with a low level inverted pass i dont need that at the back of my mind as well .

Erik R

My Feedback: (32)

d.j.,
Get a UAT.Spend the money,and stop having flameouts.Good luck!
Erik

turn and burn

sorry but what is a {uat} first jet but learning all the time have two more on the work bench i just set it up like i would my heli but i no there is no pressure .thanks

Shok

My Feedback: (28)

http://bvmjets.com/turbine/turb_parts/uat.htm

turn and burn

i order one and try it i have checked every thing else over 3 time .thanks all

Isaac F

I have one of this UAT in my Jet Copter and have a flame out. I fly the heli without the canopy to check why the UAT bottle was getting 3/4 full of air, then I find out why. I fill the system through the 3rd line in the U.A.T. and then when the tanks are full I put a screw in the fill line.
But some time if I dont putch the screw to the end in this fill line and the UAT was getting air thru that fill line. So be carfull when filling your gas tank.[:-]

Good luck

mr_matt

My Feedback: (10)

Exactly, we had a guy flame out the other day his main tanks were almost full, but UAT amlost empty. You have GOT to make sure the fill line and all connections on the fill line do not leak of you will drain the UAT and not the mains. I have seen that screw in the fill line trick, I do not like it, nor that simple plug. I like a good high quality (non festo) petcock.

bcovish

My Feedback: (8)

Screws make lousy plugs. They will really screw ya.

dbarrym

My Feedback: (47)

Mr. Matt - great idea! I like the idea of the petcock valve...the plugs get loose over time, especially the medium yellow Tygon tubing. Thanks!

Barry

Isaac F

Hey guys, sorry for my ignorance but can somebody show me what is a petcock valve. Is that a On/OFF valve???
Is there is a picture and a part number to order it. I live in central America and has to import everything[&o]

BTW, I am using that screw because thats the way the Jetcopter comes assembled RTF from were I order it [X(]

THX

dbarrym

My Feedback: (47)

Here ya go...JetCat sells them, as "4mm Ball-Cock Valve, Code: A1013, Price: $10.95" [link=http://sitewavesonline.net/Merchant2/merchant.mv?Screen=PROD&Store_Code=JetCat&Product_Code=A1013&Category_Code=TUBING]Ball-Cock Valve[/link]

I think it's an IM/Tetra part but have only seen it at the Jet-Cat site. Central Hobbies may also carry it.

Barry

hornet driver

My Feedback: (7)

one more thing to add....you can use a festo check valve for any engine under 20 lbs ....simply insert your fill line and fill.....but dont use it over 20 lbs or the turbine suction will open up the check valve and suck air too.......i use a plug and a festo cock valve and never deviate....and never flame

hornet driver

Isaac F

Hey guys, thank you. I will order one ASAP

THX