kingcat fuel question
 

Hello,

just pick up a kingcat, looks as if its built per bvmspec.....the fuel system consist of two kevlar tanks feeding a sullivan 18oz to a uat to the fuel pump.
My question is can i remove the 18oz tank running just the two kevlartanks to the uat to the fuel pump and still get 6min flights?
Thanks
Paul

RE: kingcat fuel question
 

Yes, I was able to fly an 8 min flight with just the 2 kevlar tanks.

RE: kingcat fuel question
 

With a 120 sized engine you can get 8+ mins flights just like Tony says. Now if you leave it hammered the full flight you might be pushing your luck, but the KingCat is basicly a flying fuel tank. I have had just the two main tanks in all of mine ( I use the center section for a smoke tank) and set my timer at 8 min and usually land with about an inch in both tanks. That is with a Titan SE, but I rarely use full throttle. Scotty

RE: kingcat fuel question
 

Paul
Are you gonna put smoke on the KingCat? If so, Gary Mueller makes a 48oz tank that fits in the area where the 16oz was. I've seen you fly, that being said, you might want to start off with 6 min on the first flight and adjust upwards as needed to get the most flight time.
If this weather ever settles down, Dan and I are gonna make to Ft. Bend.
If not, see ya at Mississippi.

RE: kingcat fuel question
 

My KC is powered by a Titan SE set for 117,000 RPM maximum. It is overpowered at this RPM setting. A P-120 is plenty in this airframe here at sea level (Central Florida).

My flight timer is set for 9 minutes, and I try to land before it expires. The remaining fuel level is usually the near the aluminum adapters in the mains, seldom going below the plywood tank retainer.
I feel that it is smart to allow an amount of reserve fuel for a couple of missed approaches or slpw orbiting in case the runway is not available for a minute or two.

I usually throttle back to about 75% power after take off and only use full power for verticals.

A P-120 would be more fuel efficient.

RE: kingcat fuel question
 

Aircraft International also sells a 51oz tank that fits perfectly in the rear section of the KingCat which you can use for smoke or fuel. You can buy it here:

http://www.aircraftinternational.com...7/Default.aspx

Looks like this:

RE: kingcat fuel question
 

Craig are you running the Mueller center tank also? I found the jet lands best when the mains were relatively dry and Mueller center tank was full.

RE: kingcat fuel question
 

Thanks for the info guys......my kc has a 120 on the business end, I can only really fly for about 6min.......after the 6min mark the passes get to low lol
Very excited as this is my first kc( older comp arf version i think) also the lines in the tank seem older, it looks like a real flexable line and would like to know where to get some?
Thanks
Paul

RE: kingcat fuel question
 

Paul,

Do you want me to make it all better and ready fo you to terrorize????:D Let me know... the bench is fixing to open up !!;)


Danno

RE: kingcat fuel question
 

Bob danno, come whenever yall like.......weather is still cold but the sun is starting to shine more!
Also I am new to jetcat and would like to know if the filter coming from the selinoid to the engine is absolutely needed?
Thanks
Paul

RE: kingcat fuel question
 

Hey Buck,
I just used the stock Sullivan or whatever it was in the center. I usually landed with about the same amout of fuel so I can't say I ever really noticed a difference. Course all my landing are good anyway.............that's how us airline guys do it:D

RE: kingcat fuel question
 

Hi Paul,

the standard Jetcat setup is running the JC filter after the pump, before the solenoid. no other filter is needed.

Kirk

RE: kingcat fuel question
 

Paul, use a filter and put it where Kirk suggested, JetCat recommended for years of trouble free use.

RE: kingcat fuel question
 

Paul,
The inside the tank fuel line is available from BVM. P/N 2804 price $6.00 for three feet. This is by far the best line for inside tank use.
As a note of caution, this line will grow lengthwise about 3/4" with exposure to JetA or kerosene. If the tubing is too long, after it grows, you will have limited clunk action.
Since the jet is an older one, it is possible that the feed tube between the flexible tubing has not been changed from brass to 5/32" stainless steel. The SS tubes are avail form BVM. Use P/N PSTU003 Price is $5.00 for the pair including mailing anywhere within the continental US.

This change was the subject of an addendum in 2006.
The new heavy brass clunk weights are a welcome improvement. They are 2 1/2 times the weight of the old nickle plated clunk weights and fit through the brass adapter fitting. P/N PS-SP-0073 Price is $3.95 per set of two.

Check out the addendums on www.bvmjets.com
click on Jet Kits, KingCat, KingCat AD's, and accomplish any AD's that pertinant to your particular jet.
Hope this information is helpful.

RE: kingcat fuel question
 

haaa haaa nice:D

RE: kingcat fuel question
 

Thanks guys,

This will be the first Jetcat that I have flown after years of AMT......so there is alittle learning curve that i have to figure out since the turbine starts it self, no scuba required....I will miss my workout days with out a scuba.

I dont know what version ecu is curent but the one I have is a 5.0.........Number 1699 scratched into the turbine
Thanks for the help.
Paul

RE: kingcat fuel question
 

Version 6.0J2 is current.

RE: kingcat fuel question
 

Gary Mueller's center line kevlar tank was originally plugged by one of our club members, Paul Jacques in Oshkosh, WI, who, as a pro builder, has plugged conformal tanks for several of his creations. You can see his tank designs on Gary's website.

The KC centerline tank was initially fitted to our buddy Brian French's KC cuz he like smoke thruout most of the flight. It can be purchased in the French size, which actually holds 90 oz and just fits, front to back and side to side.

Brian at the time flew it with a P-120. His style was much like today's EDF flight profile with lots of hot low passes with pull to vertical maneuvers, followed by going to idle on the downwind, turning altitude into speed for the next pass. That was he could fly up to 12 minutes on the stock tanks into a UAT.

Only caution was that if he flamed out occasionally early in the flight, gotta be ready cuz it is coming down......most guys ended up using the 1/2 size version of 45 oz for smoke or more primary gas.

In my old KC, I stuffed a 24 0z Dubro rectangular tank in the midline....fits perfectly and 8 0z more than BV's stock 16 oz centerline tank. For a while I had a P-180 on it and it was good for 6.5 minutes the way I fly. Now I am back to a Wren 160 and am good for 8 minutes full tilt most of the time with about 30 oz left.

RE: kingcat fuel question
 

I have a 32 oz standard dubro tank angled in the back of my kingcat right on the CG for Smoke. It slides right in.

I have the 16oz center tank between the kevlar. It holds 4 liters or something like that. I saw no harm in keeping the 16 oz tank in place for insurance in case I ever cavitated a side tank and they quit feeding. Yes it weighs one pound more but... the thing hauls absolute bootie with a Wren 120 on it that was turned down to 25lb. we radared it at 195-200 several times. the huge wing and it still slows down with the extra weight.

So my opinion... keep the 16oz center tank, put a 32oz or so smoke tank, and fly your butt off... Another reason I like the extra fuel: I take off first and land last during multiship gaggles.... Thats worth it.. if someone has an issue: I can sit up there and hold for 20min if I have to..

gives me alot of options...

Love the JET!! Still getting used to it, but its sure a sweetie to fly..

RE: kingcat fuel question
 

Hey Tom,
Tell him about the bigger tank you had made in Texas. How many ozs was that one?

Jack

RE: kingcat fuel question
 

That right Jack......forgot about that one.

Jack also makes a very nice tank that was in the KC for a while and ended up in my UB as a smoke tank.

I think it held about 64oz.......right Jack?

RE: kingcat fuel question
 

I had the Jet Tech center tank from Garry on my KingCat and it was powered by a rather thirsty AT400 (40 lbs engine) .. I would get around 10 min flights on it, and i am definitely not light on the throttle ;) ... A 50oz dubro tank with a gasoline fitting fit nicely all the way in the back for plenty of smoke ..


~V~