Fuel supplies

[Al Hobbs]

I bought some Prope years ago to help when a race was held in cold weather. The stuff does scare me because I had to buy it through a laboratory and they spen 30 minutes gtelling me about how dangerous it was.

If you are faced with running in cold weather, Ronson lighter fluid will get the job done for you.

 

[Mark Grannis]

Dad & I ran Propylene Oxide intermittently for 25 years (1975 - 2001) for the most competitive national races. It is a way to gain some extra speed. It was stored in metal container in the garage fridge and taken to the pond in it's own playmate cooler usually in the pint size K&B thinner container. We then mixed in the 1 gal fuel in the am and for each additional gallon at the races. Only used 2.5%-4% depending on air temp and air density.

This stuff evaporates every time you open the fuel jug and even when the plastic jug is sealed...very volatile. Never proven, but Dad had some concern that this is nasty stuff may have caused his fatal brain tumor at 62 years old. He asked me to dispose of it before passing and suggested I find other ways to go faster.

MG

 

[scottnewkirk]

Don is correct with his assessment of Propylene Oxide and what it was used for. Back when I was in high school ( 1960's ) my Dad brought a glass bottle of prope home from work. I assumed he had gotten it from a chemist there. This was during the summer and in a matter of a week or so it exploded sending glass all over the floor. No wet spot left because the prope had quickly evaporated. Prope should always be kept in a metal can! The controline speed guys would mix the proper amount of nitro/prope for the next flight mainly because the prope evaporated quickly. Back in the 1980's I had a metal gallon can that was about 1/3 full of prope that I kept in my work room in a closet in my house ( not a good idea ). I would have to "burp" the can about every few weeks because it would build up pressure. If I didn't do this the can would expand and make a "bang" noise and scare the heck out of the wife and the dogs, especially if it did it at night. Anyway, the prope had to go and I never got to fly my pulse jet, which I still have. It's an early all aluminum "Ironsides " by Jerry Thomas with the upright engine. And if I'm not mistaken Ed Fisher ( NAMBA Hall of Famer ) use to fly the jets for Jerry in the Washington state area.

**** Tyndall

Yes, Jerry and Ed flew together for many years. I was usually on the starter. We all worked together in the wind tunnel at Boeing.

After Jerry died, I got all of his tooling and parts for the "Ironsides" kits that he had been making. So many fliers died or dropped out of speed flying, I never sold a single one.

 

[Zimmerman]

Anybody ever tried benzoyl peroxide? It is the main ingredient in OTC acne products. I got the idea many years ago from Bert Keebler of tether car fame. The stuff is not easy to come by, but, as luck would have it, I had a pharmacist friend in St. Louis who was in the R&D department of Louis Howe Co. the mfr of Oxy 5 acne treatment. He managed to smuggle me about 4 oz of the pure white powder. Freely soluble in alcohol, but must be stored moistened with water in a tight glass container. If allowed to dry out it becomes shock and temp change sensitive ... BOOM! If you get heavy handed on the fuel% it is a great way to burn holes in pistons. Nasty stuff. Only made a couple runs with it and wound up pouring what I had left into the Mississippi river.

 

[Wasted wages]

Anybody ever tried benzoyl peroxide? It is the main ingredient in OTC acne products. I got the idea many years ago from Bert Keebler of tether car fame. The stuff is not easy to come by, but, as luck would have it, I had a pharmacist friend in St. Louis who was in the R&D department of Louis Howe Co. the mfr of Oxy 5 acne treatment. He managed to smuggle me about 4 oz of the pure white powder. Freely soluble in alcohol, but must be stored moistened with water in a tight glass container. If allowed to dry out it becomes shock and temp change sensitive ... BOOM! If you get heavy handed on the fuel% it is a great way to burn holes in pistons. Nasty stuff. Only made a couple runs with it and wound up pouring what I had left into the Mississippi river.

I wonder what organic peroxide would do,,,

The pure stuff is very unstable and has to be kept below 0 degrees…
It is the “kicker” for making the hardener for bondo, fiberglass resin and the like..

I did the refrigeration at a plant in Houston, and actually saw the results from several mishaps…. The stuff provides it’s own oxygen and burns extremely hot, so hot and fast that I’ve seen it burn in plastic and cardboard containers and consume itself, and leave the packaging intact..

If left in an ambient temperature, it self ignites,
So the trailers that haul the stuff have 2 refrigeration units and a backup liquid nitrogen
Spray system in them. And yet I’ve seen trailers that have burnt to the ground.

The worst one was when an employee misread the shipping manifest and loaded 5 pallets of the product in a walk in cooler instead of a freezer. The resulting explosion blew the cooler to pieces and lifted the roof of the warehouse and blew out the walls, luckily no one was killed or injured..

So, I was just wondering if a few drops of the clear liquid fiberglass resin “kicker” would do anything in fuel…

 

[scottnewkirk]

So, I was just wondering if a few drops of the clear liquid fiberglass resin “kicker” would do anything in fuel…

Interesting thought. I have a bunch of old engines it might be worth trying on and not caring what happens to them.

If I do try it, I'll let you know the results

 

[Dave Gilles]

I wonder what organic peroxide would do,,,

The pure stuff is very unstable and has to be kept below 0 degrees…
It is the “kicker” for making the hardener for bondo, fiberglass resin and the like..

I did the refrigeration at a plant in Houston, and actually saw the results from several mishaps…. The stuff provides it’s own oxygen and burns extremely hot, so hot and fast that I’ve seen it burn in plastic and cardboard containers and consume itself, and leave the packaging intact..

If left in an ambient temperature, it self ignites,
So the trailers that haul the stuff have 2 refrigeration units and a backup liquid nitrogen
Spray system in them. And yet I’ve seen trailers that have burnt to the ground.

The worst one was when an employee misread the shipping manifest and loaded 5 pallets of the product in a walk in cooler instead of a freezer. The resulting explosion blew the cooler to pieces and lifted the roof of the warehouse and blew out the walls, luckily no one was killed or injured..

So, I was just wondering if a few drops of the clear liquid fiberglass resin “kicker” would do anything in fuel…

I used to work an a polymer factory and the organic peroxide was stored in bomb style bunkers buried in gravel. One night at 2am the refrigeration failed and the sensors were already on the fritz. it got to 85f in there if I remember right and I was 70 yards away. they had to call in emergency nitrogen trucks. thermal runaway happens at like 98f I think. something like that.