RCU Forums

RCU Forums (https://www.rcuniverse.com/forum/)
-   RC Jets (https://www.rcuniverse.com/forum/rc-jets-120/)
-   -   Fuel additives (https://www.rcuniverse.com/forum/rc-jets-120/11178672-fuel-additives.html)

rc4flying 08-02-2012 10:47 AM

Fuel additives
 
I am new to jets and had my first flame out yesterday. I am trying to track down as to why this happened. . Is it common to use a fuel anti-static to the fuel mix,and if so how much to 5 gals?

Harley Condra 08-02-2012 11:30 AM

RE: Fuel additives
 
Check your ECU for the engine shutdown condition. The engine manual can tell you what the shutdown was caused by in most cases.

Fuel system additives:
In very low humidity conditions, the movement of the fuel through the tanks and fuel lines can sometimescause a static electricity build up and discharge. When this occurs, the engine ECU might get stupid and shut the engine down.
The RC system rceiver can also be disabled. The electrostatic charge imbalance is caused by the relative motion of two non-conductive materials such as fuel flowing through tubing, or fuel sloshing in a epoxy/Kevlar or plastic tank, and is compounded by low humidity conditions.
BVM and JetCat worked together to find a solution for this phenomena, and we found it and JetCat fixed it.

We offer an Anti-Static Addiditve, P/N PA-QC-0001 for $12.00. All it takes is a couple of capfulls to five gallons of kerosene or Jet-A.
Call Patty at 407-327-6333 tomorrow morning and we can ship it to you the same day.

Even though the humidity in Florida and the rest of the south, the mid west and eastern seaboard where we fly is usually pretty high, we never fly without it.

rc4flying 08-02-2012 04:24 PM

RE: Fuel additives
 
Harley,

Thank You for taking the time to answer my question.

I had read about static being created with fuel flows and much of what you just explained.

I did talk to Bob Wilcox a little earlier today and he had me go through the last 4 seconds of the ECU readings. After talking numbers so much, Bob asked for me to send him a DOC. showing all the reading to see them in print. I was going to send them off to him when I called my buddy and he mentions something about the TX failsafe settings. I looked into my program and now think that the RX may have had a loss of signal just long enough to shut the ECU down. I will do a ground check run up and failsafe test again to verify this.

I have an order cominf from BVM yesterday, so I will have to place an order for this on the next order.

Again, Thanks for your time.

Harley Condra 08-03-2012 03:41 AM

RE: Fuel additives
 
No problem.
As a side note, the formula that BVM sells is exactly the same formula as specified and developed by JetCat.

Why deviate?

Vincent 08-03-2012 05:54 AM

RE: Fuel additives
 
Joe,
I have never used to additive but it cant hurt to try it as a precaution. A fellow club member here is Az. was having some serious shut down (static) problems last year with his Ultra Lightening and jetcat motor. The fuel additive did not work in his jet because the static was not generated by the fuel flow. We found out it was being caused by a tire slightly rubbing on the strut while the jet was rolling. Anti static spray on the wheels would work fine every time but the final fix was to repair the rubbing tire and run a ground wire to all of the gear and terminate it at the tail pipe where the static was discharged thru a small soild tube. After that was done there were no more shut downs.
Vin...


All times are GMT -8. The time now is 09:13 AM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.