Extreme Speed Prop Planes Discuss the need for speed with fast prop planes (Screamin Demon, Diamond Dust, Shrikes or any REAL sound breakin'''' plane)

Javelin II and prop

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Old 09-01-2004, 02:14 PM
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freebird1
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Default Javelin II and prop

The Javelin currently has a GWS 47 with a long pipe. I am useing a 10x6 master air. I was thinking of going with a 9x8 APC. What do you think. The nearest Hobby store is 25 miles and will make the trip if it will add some SPEED.
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Old 09-01-2004, 02:20 PM
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Default RE: Javelin II and prop

A 9x7 or 9x8 APC will definitely add some speed but the Javelin is a pattern plane right? Don't you want some vertical for your up-lines?

A gent. put retracts in his F-4 so there should be a thread or two on that- try a search...

Cheers!
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Old 09-01-2004, 02:36 PM
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Default RE: Javelin II and prop

I thought you might say that. The plane is a super flier and turns on a dime, and a super pattern plane, but We race from time to time at the field. The plane works well in an all out two pylon race. We do this for fun so 3 planes up and then catch me if you can. after 5 mins the one in the lead wins. This is super fun and exciting for the crowed as well as the pilots too at 100+. There is one guy at the field giving me some trouble. I am faster than him, but his plane will hit itself in the rudder it turns so fast. If I can gain a little more MPH in the straights then bye bye.
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Old 09-01-2004, 04:25 PM
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Default RE: Javelin II and prop

9x8 apc, 20% nitro
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Old 09-04-2004, 03:40 PM
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Default RE: Javelin II and prop

You'll have to experiment to get the most speed. It might not come on
the pipe with the 9-8 APC, and you could lose speed.

As an example....awhile back I started out with a 10-6 APC on a long
pipe Rossi .45 in a F-20 Tigershark. I was only getting 14,000 prm. I
switched to a 9 1/2-6 MAS, and it jumped to 18,100 rpm. The speed
increase was dramatic....about 20-25 mph.

The moral of the story is, you'll have to find out for yourself.

Dave.
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Old 09-04-2004, 03:51 PM
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Default RE: Javelin II and prop

I'd be careful taking this plane too fast. My fuselage was weak where it meets the trailing edge. I used an APC 10x7 on mine and it flew nice while I had it. If your interested, I still have the cowl and the fiberglass part of the canopy. They are a little dinged up, but all I want is 10.00 to ship them.
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Old 09-04-2004, 04:37 PM
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Default RE: Javelin II and prop

On the pipe Dave? That Tower muffler?

He is right about experimenting but you will have to judge it on performance not RPM- I do have 1 airplane with a MA prop on it thanks to Dave and Gary, but that is the exception not the rule

When I get the chance to fly her again I will try some diff. props of the grey variety so I can have the MA for epoxy mixing-
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Old 09-06-2004, 11:02 PM
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Default RE: Javelin II and prop

Stick with the grey props, James....

....that will assure you of third place....

FBD.
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