careful of excess pressure build-up. 3. Wear eye protection. Gasoline can cause severe chemical burns to sen- sitive tissue. 4. ... aircraft for any period of time.
TESTING AUTO FUEL FOR ALCOHOL First, some precautions: 1. Gasoline and alcohol are flammable - extremely so. 2. Gasoline when shaken will vaporize and cause a pressure build-up in a closed container. Don't use a closed container - hold your hand over it to contain the fuel and be careful of excess pressure build-up. 3. Wear eye protection. Gasoline can cause severe chemical burns to sensitive tissue. 4. Wear appropriate clothing. This is a messy process. 5. Gasoline is an extremely efficient
solvent. Use containers that can resist chemicals. You may find a suitable container at a photo store. 6. If you use a glass container - be careful of containing pressure - do not cap with anything other than your hand. 7. We suggest you protect your hands with fuel-resistant gloves. Next, the proper procedure for fuel testing is contained in the EAA Avia-
tion Foundation Field Information No. 306. This is included in the Auto Fuel Summary available from: EAA Flight Research Center, 1145 W. 20th Ave., Oshkosh, WI 54901, phone 414/4264843, Fax 414/426-4881. Now, to the actual testing. You will find it is hard to get thorough mixing of water, the alcohol and the fuel. We suggest you put a drop or two of food coloring in the water used to make it visible. As the Field Information 306 suggests, mark your container. Ours was 1000 ML or 1 liter container with graduations. We used 900 ML of auto fuel known to contain alcohol. 100 ML of colored water was added and the container was stirred and shaken . . . see all the above precautions. We ended up with an apparent volume increase in the water of 50 ML. Our formula is from the EAA Aviation Foundation Field Information No. 306: (V-100) 100 - %(900)
Where V= final apparent volume of water V = 150, then (150-100) 100 = 5.6% (900) This is the sample of the field test for determining the presence of alcohol in gasoline. Under 1% apparent alcohol in the gasoline will probably not have any adverse effect. Up to 5%, we suggest you don't leave it in the aircraft for any period of time. On a f i n a l note, grain alcohol or cthynol is C2H5OH, the stuff we occasionally drink. Wood alcohol is Methanol, CH2(OCH3)2. (Used in antifreeze, as a fuel and a solvent.) When alone, each form of alcohol has a d e f i n i t e and distinct odor. When mixed in gasoline it is very difficult to tell by odor which alcohol is in the fuel. Methanol is a strong solvent and may attack gaskets, hoses
and composite floats in the fuel system. It would be considered the "worst" of the two alcohols in its effect on the substances.
1
900 ML of gasoline known to contain alcohol. 98 AUGUST 1993
900 ML of gasoline plus 100 ML of colored water added. The apparent volume increase in the quantity of water after mixing. The alcohol and the water combined as alcohol has a greater affinity for water than it does for gasoline.
USING AUTO FUEL IN YOUR ROTAX TWO CYCLE AIRCRAFT ENGINE. (A) INTRODUCTION ... ENGINE DATA SHEET. - POWER ... MINIMIZE CRANKCASE AND COMBUSTION. CHAMBER DEPOSITS AS WELL AS SPARK PLUG. FOULING ...
We have always done a lot of testing at RotorWay. ... zen. Because of RotorWay's decision the Scorpion is a much improved craft today over what it was 5 years ...
test: x=[2, 3, 5]; y = 2. // test: x=[0, 1, 0]. //. Expected = 0. //. Expected = 2 ... Java compiler â the number of potential inputs to the compiler is not just all Java.
Jun 6, 1973 - input, shape and weight distribution of the total .... however, reduction of airspeed is para- mount. .... fying than a medical check-up with a.
The moment of inertia of the beam is given by: I = bh3. 12 ... For example, quarter-sawn. Douglas fir ... Wash., won first place in the 1962 EAA Design Contest.
er does not have at least 100 hours flying time and ex- ... aircraft to be test flown is a prototype of a new design ... In other words, what he reads is the indicated.
tying it down at fly-ins would be a lot easier using this device. ... 3A32C Series. P21EA. D3A32C Series. P21EA. 3AF32C. P22EA. D3AF32C. P22EA. 3AF34C.
sirable colors to paint an engine. For opti- ... cooling but the color of the paint doesn't. The second .... AGILEâ Light, smooth controls make aerobatics a joj.
Inspecting the fit of tubing joints on the bottom side. (side nearest the plywood panel ... The angle finder makes for a more versatile device, however. FIGURE 2.
MAGNETO IS essentially a small AC generator, constructed so that the ... A typical 4 cylinder installation with a Bendix mag, (2 ..... Good Luck and Good Flying.
sary but often expensive special tools needed to properly ... terials, tools or techniques they think would be of interest ... tool box in its 2" x 2" storage box.
time to make some repairs and repaint it, I decided to reskin all ... I read all of the FAA and EAA books and articles I could ... of scrap aluminum. I then examined it.
Aircraft wood is best cut with sharp tools, and sandpaper ... EAA member John ... wood. The technician told him that those are fine as long as the dust is removed ...
size and re-build and seal closed the box with DUCT. TAPE. (Greatest .... lease wax and a coat of P.V.A. film release. ... safety equipment and ventilation. A good ...
A few miles from his home field he ran out of gas. ... who hasn't run out of gas or on some occasion had a low tank. ... It takes only one little bee to plug a vent.
Now tape 3 or 4 sheets together lengthwise, depending on the length of the airfoil, keeping the lines nice and straight. Now, obtain the airfoil coordinates.
item is taken care of by the manufacturer of both the engine and the mags. ... The breaker is set to open just after this point is reached. This is called the "E Gap ... time you have prop started an engine, the loud click you hear as you pass the ..
thick fabric or short lengths of reinforc- ing tape between the stitches and to al- most completely eliminate any bumps from the stitches when hidden rib stitch-.
over 650 feet per minute. How much prop thrust do you think you might be getting out of the. 115 hp, which is pulling you slowly into the "wild blue yonder." 550.
