My best advice here is to look around where you fly and see what tank capacity others are using for similarly sized engines. You also must consider how they fly as compared to your style. For our purposes, I am using a 16oz Du-Bro tank that needed a replacement gasoline-compatible stopper.
A common problem is a clunk line that is too long and hangs up on the back of the tank. Dead sticks will follow. Locating the fuel tank is simple. Usually the instructions for the plane indicate the best position for the tank in that airframe. I try to locate the tank so its centerline is on the same level as the centerline of the engine. The idea is to prevent having to suck the fuel uphill for any great distance.
Pumping carburetors will pull fuel uphill but it is not wise to count on that any more than is necessary. In this case, close usually works just fine. Another consideration with tank location is its effect on the CG center of gravity. To reduce the chance of a tank rubbing against the airframe and developing a hole, tanks are usually mounted on a layer of foam rubber.
I also put a strip of the double-sided tape between the tank bottom and the foam to further keep everything in place. Double straps made from hook and loop material hold the tank firmly but allow it to be removed if necessary.
Between the foam, tape and straps my tanks have stayed in place no matter what I have done with the plane in the air. Two or Three Lines? All fuel systems must have a line to the carburetor and a vent line. As fuel is drawn out of the tank it must be replaced with air at normal atmospheric pressure through a separate line. This vent line prevents the tank going into a vacuum state that shuts off the fuel flow to the carb. Foam under the tank isolates it from some vibrations and helps prevent it from rubbing a hole in the tank of the surrounding wood.
The first step to having a successful flight is installing your fuel system properly! Hope you found this helpful! What are you waiting for? Go fly something! Your email address will not be published. Save my name, email, and website in this browser for the next time I comment. Do you have a video to share with Model Airplane News? Submit your video here. Profile Data. In an effort to better serve you, our reader, and ensure a rich and relevant experience please help us by completing this Airplane interest profile.
Show ad. Show offer. Lost your password? Please enter your email address. You will receive mail with link to set new password. Subscribe Button Subscribe. Gerry Yarrish. Featured News , How-tos. I used a 2-line tank installation and used a DuBro fueler fitting shown above. Leave a Reply Cancel reply Your email address will not be published. Featured Video. Sitewide Ads. Profile Form Profile Data Profile Form In an effort to better serve you, our reader, and ensure a rich and relevant experience please help us by completing this Airplane interest profile.
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Turn the ignition kill switch off, and close the choke. To draw fuel into the carburetor, flip the prop until you see gas flowing through the fuel line and into the carburetor.
Open the throttle fully, turn on the ignition system but keep the choke closed. Close the throttle, advance the throttle trim fully and open the choke. Flip the propeller a few times and the engine should start. Engine exhaust gives off carbon monoxide so open the door for proper ventilation. It is also a good idea to wear eye protection. Ronald Mountcastle. September 23, at PM. Very informative, just what i needed since i am a novice with my gas engine.
Chuck Lackey. September 24, at AM. Frank gruseitz. September 26, at PM. Enjoyed the article. Mark Silzle. September 28, at PM. Leave a Reply Cancel reply Your email address will not be published. Featured Video. Sitewide Ads. Profile Form Profile Data Profile Form In an effort to better serve you, our reader, and ensure a rich and relevant experience please help us by completing this Airplane interest profile. Own A Plane.
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