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Speed,Combat,Scale,Racing => Speed Talk => Topic started by: C.T. Schaefer on January 22, 2018, 04:02:44 PM

Title: Fuel for Brodak .35 Speed Events?
Post by: C.T. Schaefer on January 22, 2018, 04:02:44 PM

Question for Paul.  It is understood that we will use 5% nitro fuel this year but will fuels with different oil contents be available or just one for everything?  If one,  how much oil??   Thanks, TS

Title: Re: Fuel for Brodak .35 Speed Events?
Post by: Paul Smith on January 22, 2018, 07:00:04 PM

I'll go with one fuel per the last Saint Louis rules.

Title: Re: Fuel for Brodak .35 Speed Events?
Post by: Skip Chernoff on January 23, 2018, 07:12:38 AM

Paul I'm finishing up my Sportsman Speed plane,looking great . I'm not familiar with St. Louis rules .What fuel will I be putting thru my 1960s OS Max III ? How much Nitro ,how much oil? Thanks,PhillySkip

Title: Re: Fuel for Brodak .35 Speed Events?
Post by: Paul Smith on January 23, 2018, 11:56:00 AM

I will host three speed events:

Perky & Fox 35 will use the fuel that the rules specify.

The Sportsman event is a Brodak-only event without established rules.  I will provide a few different 10% fuels with different oil contents. 
Perky has 20% oil.  Fox 35 Stunt has 25%.  Brodak Clown & Foxberg use 22%.  So if I bring some 29%, that should cover anything anybody wants.
20, 22, 25 and 29.

Title: Re: Fuel for Brodak .35 Speed Events?
Post by: Skip Chernoff on January 23, 2018, 12:40:19 PM

Thanks Paul.What do you think would be best for my old OS MaxIII? 10/25?

Title: Re: Fuel for Brodak .35 Speed Events?
Post by: Skip Chernoff on January 23, 2018, 06:00:39 PM

Thanks MM

Title: Re: Fuel for Brodak .35 Speed Events?
Post by: Skip Chernoff on January 23, 2018, 06:10:52 PM

Here's a pic of my Sportsman Speed entry for Brodak's this year. A Brodak Shoestring,OS MaxIII mill .She's almost ready for primer. Monokoted wings,elevator and stab. Fuse has 6/10 oz glass cloth. Micro balloons and finishing resin for wing fillets,tail plane,and cheek cowl. She's light and straight......Skip

Title: Re: Fuel for Brodak .35 Speed Events?
Post by: bob whitney on January 24, 2018, 06:50:17 PM

ok my head is spinning are we using 5% on all the speed class's ???

Title: Re: Fuel for Brodak .35 Speed Events?
Post by: Paul Smith on January 25, 2018, 08:03:27 AM

Quote from: bob whitney on January 24, 2018, 06:50:17 PM

ok my head is spinning are we using 5% on all the speed class's ???

No.  We will use the published rules for each event.

For Perky, 10-20-70
For Fox 35, 5-25-70
For Sportsman, any blend with 10% nitro.

I have avoided changing the rules of Perky and Fox 35 Stunt. 
Sportsman is my unique event, created at the request of those who want to compete without machining a special Fox 35.

Title: Re: Fuel for Brodak .35 Speed Events?
Post by: bob whitney on January 25, 2018, 10:37:37 AM

got it thanks

Title: Re: Fuel for Brodak .35 Speed Events?
Post by: Paul Smith on January 25, 2018, 10:51:53 AM

Quote from: Skip Chernoff on January 23, 2018, 06:10:52 PM

Here's a pic of my Sportsman Speed entry for Brodak's this year. A Brodak Shoestring,OS MaxIII mill .She's almost ready for primer. Monokoted wings,elevator and stab. Fuse has 6/10 oz glass cloth. Micro balloons and finishing resin for wing fillets,tail plane,and cheek cowl. She's light and straight......Skip

The Max III was a powerhouse for a plain bearing blackfin engine.  Not much good for hot starts, but that's no problem in Speed.  There might be a good number of healthy old ones around, since they were retired by the ST C35 & the G21.

Title: Re: Fuel for Brodak .35 Speed Events?
Post by: C.T. Schaefer on January 25, 2018, 11:42:58 AM

Thanks Paul

Title: Re: Fuel for Brodak .35 Speed Events?
Post by: Skip Chernoff on March 24, 2018, 09:45:38 PM

I've got my Sportsman Speed ship all finished. Waiting for clear weather to do some testing. I had some trouble with the decals, as the decals refused to lay down on a slightly curved surface.Has anyone experienced this with Brodak water slide decals? In any case the bird finished up at 28oz rtf. Pics to follow.....Skip