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line length for Fox .35

Stuka Stunt Main Forum · 20 of 20 known posts recovered

jfitzgerald · Jun 22, 2004 07:30 AM

#0 source
Just curious: What is the usual line length for a Fox. 35 powered Banshee? I have been using .015 x 57 and .015 x 60 footers.

John Fitzgerald

Bill Little · Jun 22, 2004 07:41 AM

#1 source
Hi John,
Those lengths are in the general ballpark. The main thing is that the plane is flying at it's correct speed, and you are comfortable with the lap times.
You should be, at least, flyable on either of those sets.
Bill <><

When the character of a man is not clear to you, look at his friends.
Japanese Proverb

jfitzgerald · Jun 22, 2004 05:42 PM

#2 source
LAST EDITED ON Jun-22-04 AT 05:43 PM (CDT)
 
It seems a little weak even on 57's if the engine is set to the rich-lean break. Only the last few laps it seems strong enough when it leans a little, then too little fuel to risk stunts. What about .012 x 52's? There wouldn't be anyone around to get hurt if they broke. But maybe these would be too short and make the ground too close on loops. I'm running a 10 x 6 master airscrew nylon composite. landing on rough grass so wood is out of the question.

John Fitzgerald

fox4evr · Jun 22, 2004 07:04 PM

#3 source
Hi John.
I also use Fox 35's on my 2 Banshees with 15/60 lines. I have plenty of line tension and what I would call more than enough power to do any manuver. I fly them both in 15 to 20 mph winds with no problems. I use APC 10/5 props. Lap times are usually around 5.2 with a good 4-2-4 engine break. Lee

shholt · Jun 22, 2004 07:05 PM

#4 source
Unless your Banshee is very heavy, the Fox should have plenty of power. You may be launching too rich. One trick we used (before tachs were available) is to set the engine to a fast 4 cycle, then abruptly point the nose up. If if broke into a good 2 cycle, we flew it that way. If it did not break, we leaned it out 1/2 turn on the needle and tried again.
Steve
The older I get, the better I used to fly!

F4FGuy · Jun 22, 2004 08:44 PM

#5 source
LAST EDITED ON Jun-22-04 AT 08:47 PM (CDT)
 
>It seems a little weak even on 57's if the engine is set to
>the rich-lean break. Only the last few laps it seems strong
>enough when it leans a little, then too little fuel to risk
>stunts. What about .012 x 52's? There wouldn't be anyone
>around to get hurt if they broke. But maybe these would be
>too short and make the ground too close on loops. I'm
>running a 10 x 6 master airscrew nylon composite. landing
>on rough grass so wood is out of the question.

Ron B.
F4Fguy

Go to a 10-5. Or go a click or two leaner,or both.
OOOrrr,go to a 10-3 1/2and a 2-2 run.

If you're still having trouble,(I assume the problem is tension)then I'd say your problem is not with the engine,but with the trimming of the plane.

Ron B.

Steve Scott · Jul 13, 2004 12:01 AM

#19 source
Did anyone ever try that funky paddle bladed CF prop GMA used to produce? It was pretty wild looking but he claimed it worked.

LeagueCityRalph · Jun 22, 2004 09:17 PM

#6 source
I learned from Lew McFarland (40 years ago) that the Fox .35 worked best with a slightly smaller prop, perhaps a TF 10x6 trimmed to 9-1/2 or maybe a bit less. Sometimes a paddle blade 9x6 or a 10x5 depending on the size and weight of the plane.

You have to play around with this and do what works for you/your plane/engine. Sometimes a little extra nitro makes a HUGE difference.

Ralph Wenzel

T.Durrill · Jun 23, 2004 08:04 AM

#7 source
I agree with Ralph. I have a Trixter Barnstormer, Fox .35 stunt, old wide blade Top Flite 10/5 propeller, 2 - 4 break run. I fly on 60 foot lines ... centerline of handle to centerline of plane. I always noticed that on overhead maneuvers the engine seemed slightly weak and line tension was not what I would have liked. For years, I had run 5% nitro/29% castor fuel. Late last summer, I started running 10% nitro/29% castor fuel and found that this made the difference. The plane is flying great now with good line tension at all attitudes. I am going to try an APC 10/5 prop, which so many Fox .35 people rave about, but haven't gotten around to that yet. In other words, a little more nitro will make a difference. You can go as high as 15% nitro in the Fox .35 stunt with no ill effects, but you will get more power and this may just take care of your problem.

T.Durrill

afml · Jun 23, 2004 10:13 AM

#8 source
Zinger makes a 10/6 EW prop that's perfect for the Fox 35 being flown in OTS. Try it! You'll like it!
Wes

jfitzgerald · Jun 25, 2004 11:08 PM

#9 source
Today I tried a Rev-Up 10-6 that is trimmed to 9-1/8". The Banshee had more tension with about the same lap speed. Needle setting was a tweak leaner too. I was able to do some loops and 8's comfortably without losing tension. It flies better in a mild breeze than in dead calm.

John Fitzgerald

phantomflier · Jun 26, 2004 12:42 AM

#10 source
LAST EDITED ON Jun-26-04 AT 00:46 AM (CDT)
 
If you can find them try the Rev-Up 10x6 EW trimmed to 9.5 inches the engine seems to like them.

The APC 10x5 is about an ounce heavier than the Rev-Up, everything else being equal this will give more line tension since the plane will be a little more nose heavy. Only downside is a more nose heavy plane is harder to turn.

Most planes will fly better in a slight breeze, adds a little to the downwind line tension, adds energy into the lazy 8's, and blows away the turbulance from previous maneuvers.

What nitro level are you running?
Are you using the standard needle valve assy or something else?

jfitzgerald · Jun 26, 2004 08:11 AM

#11 source
Fox Superfuel, 5%, Standard needle. I think everything is working as well as expected now. If I can get down to Fox sometime, I may pick up some nitro and spike some of my fuel.

John Fitzgerald

Brett Buck · Jun 26, 2004 08:17 AM

#12 source
>Fox Superfuel, 5%, Standard needle. I think everything is
>working as well as expected now. If I can get down to Fox
>sometime, I may pick up some nitro and spike some of my
>fuel.

Heck, just get some SIG 15% all-castor. That will really wake it up.

Brett

jfitzgerald · Jun 26, 2004 08:27 AM

#13 source
LAST EDITED ON Jun-26-04 AT 08:59 AM (CDT)
 
Fox is the only place within easy driving distance (one hour away) I can get C/L fuel. The only local shop only carries the 15% oil R/C fuel and is an R/C shop only. I might pick up some .014 solid lines also.

John Fitzgerald

JetJock · Jun 26, 2004 10:53 AM

#14 source
APC 9-7 worked well on my Flite Streak/Fox 35. Noticeably more line tension.

jfitzgerald · Jul 05, 2004 09:45 PM

RE: line length for Fox .35 - problem solved#15 source
I went with 57' x .015 stranded lines, increased the nitro to 10% by adding some pure nitro and castor to my fuel. The engine really woke up. With the new prop and extra nitro, lap speeds are up and overhead tension is pretty good. It's about all I'm going to get out of a Fox .35 without forcing it into a 2-2, which I don't want. It goes to a 2-2 anyway for about the last three laps, which is a good warning to get ready to land. I'm running a uniflo plumbed plastic clunk tank.

John Fitzgerald

Sparky12366 · Jul 05, 2004 10:03 PM

#16 source
I learned from Ron Otool and Tom Warden that a 9.75 x 5 revup EW worked the best for me.

Robert Storick
AMA 12366
Saint Louis,MO.

Jeff W · Jul 12, 2004 09:43 PM

#17 source

John:

Whatever it takes to get from the tank to the spraybar........

Jeff W

Is there a full moon tonight?

wmiii · Jul 12, 2004 10:35 PM

#18 source
I just remembered a comment Bob Gieskie made about Foxes and lines.
He said fly on the shortest lines your comfortable with.


Walter