Peres_Rafael

Hi! I have a Rotax 618 DCDI on my amphibious Corsario ultralight and i found an ignition coil trouble. They're not on the 230~280 Ohm measures. I need to replace or rewind them. My question: Did anyone rebuilt a ducati charging coil? How was it? I have some experience on eletrical systems, even being a mechanical engineer, and i'm seriously considering do this.... What copper wire should i use for the 2 pole coils for every iginition system? Thanks in advance.

That's true we use cropduster aircraft with 100% ethanol... All new cars since 2006 are both capable of burn gasoline and ethanol in any proportion. Since 2010, the mix ratio of auto gas and ethanol was lowered to 20%, instead of 25%, by market interests. Everybody uses auto gas or avgas here... all my friends fly auto gas with 2 strokes Rotax engines and it's normal... as i sad, the only concern is the reliability of the gas station, and believe me, it's true... I had a problem with the viton tip needle valve on bing, but it has about 100 hr of flying time and almost tree years in contact with the mixture... I Can't say if was caused by ethanol, therefore, is known that some rubber isn't compatible with ethanol (Dupont viton rubber too). For the 912, everybody uses the 100 octane automotive "BR Podium" or avgas. The automotive, at least don't show lead deposits in the engine. All gas hoses and tanks here are made to support ethanol too. In the Rotax, the mixture is the same recommended by manual and adjust chart of the bing carbs. No problems at all! Great flights to everybody! Hugs!

Good night everyone! I'm a frequenter of this forum to seven months and I like the way issues are discussed here, and how I can get knowing about the Rotax 2-stroke engines, following the discussions posted here. I would like to share my experience with the ethanol blended automotive gasoline used in experimental aircraft here in Brazil. As you know, the Brazilian automotive gasoline has been added to 20% ethanol for two decades as a way to improve its octane features instead of lead. We dispose of this mixture in any gas station (with due care regarding the quality of it in certain positions) at about 84 octane. As the Rotax 582 manual requires at least 90 octanes, I usually mix 30% of avgas (leaded) to reach the advice. About ethanol, I personally never had problems related to moisture. I make my own maintenance and decarbonization, following engine wear and promoting all the necessary measurements. My Rotax 582 counts 371 hours, with the original crankshaft and within specifications. Some troubles that I had reports about fuels, were caused by the unreliability of the dealers in the country. As for cost, I must say that automotive gasoline is attractive, even with the mix of avgas. Here we have another option, which is "BR Podium" gasoline with 100 octanes, also mixed with 20% ethanol, but it has detergents that harm the lubricating properties of oil added into the mix and cost similar to avgas, therefore, unfavourable. I hope had help you on some doubts about the experimental aircraft use of ethanol. I am available to everyone and sorry about my poor English! Hugs and good flights to everyone. Rafael Peres Uberaba-MG/Brazil [ATTACH]10974.vB[/ATTACH]

Flying over Brazil Flying a Flyer GT/582 over Uberaba/MG- Brazil. Photo taken from a Pelican. Note the wind shield reflections... [ATTACH]10967.vB[/ATTACH]

Hi! Once, my old garmin GPS III gone out of memory battery. This was a simple step for installing another one. Without that, when replacing the main batteries, you're going to loose all waypoints and trip data stored on it. Huggs!

I have already learned a lot about engines here! That's an amazing place! Thank you.

Funny! This is in portuguese! The name cames from a dinosaurs site near the field and my friends there, all over aged...

Yes, a beautiful place here. Take a look on my album. Hugs

I'm a ultralight pilot in Brazil. In case of need, i'll be pleased to help here!