Metric To Us Conversion

Honeywell Record Flight Brings Biofuel To Paris

Honeywell’s corporate Gulfstream G450 made bizav history when it landed at Le Bourget in time for the Paris Air Show after the first transatlantic flight using biofuel, a trip that resulted in net equivalent savings for the seven-hour flight of roughly 5.5 metric tons of CO2.

For the record-setting, nonstop flight from Morristown, N.J., to Paris, the fuel system was set up so that the number-one engine burned a 50-50 blend of “Honeywell Green Jet Fuel” and standard jet-A fuel while the number-two engine consumed only jet-A.

The Gulfstream was not the only “greener” aircraft at the show. A Boeing 747-8i using Honeywell’s biofuel blend in all four engines arrived at Paris after a nonstop flight from Seattle.

The transatlantic G450 flight accomplished two goals, according to James Rekoske, v-p and general manager of renewable energy and chemicals for Honeywell UOP, the division responsible for the two-and-a-half-year biofuel development program. First, it demonstrated the willingness of the business aviation industry to participate in the search for more environmentally friendly fuel sources, and, second, it signaled the importance of moving ahead toward the expected FAA approval of the 50/50 Green Jet Fuel blend in the middle of next month. The fuel received ASTM (American Society of Testing Materials) approval last month.

‘Feedstock-Flexible’ Fuel

The fuel is produced for UOP under license by a Houston refinery. It was developed under a grant from the U.S. Defense Advanced Research Projects Agency (Darpa) and is based on hydro-processing technology commonly used in today’s refineries to produce transportation fuels.

The process works by adding hydrogen to remove the oxygen from the natural plant oils. It is further refined to produce a bio-synthetic kerosene, which is then blended with standard jet fuel for use in flight.

Biofuel production typically involves a half-dozen sources, from algae to the jatropha plant common in Brazil. UOP used the camelina plant, a hardy, inedible species with high oil content, to create Green Jet Fuel, but according to Rekoske the technology is feedstock-flexible, meaning it can work with any natural oil. Camelina is indigenous to both North America and Europe and provides up to 150 gallons of oil per acre.

Metric Conversion From US Stitches Per Inch | The Temecula Valley ...

All of the sewing machines that I have seen that were made in the last 10 or 15 years have stitch length settings that are in millimeters. Back when sewing machines were still being made in the US, most of our sewing machines had stitch length settings that were in stitches per inch. The picture to the right shows the stitch length knob of an old Singer sewing machine model 750.

Most of the world uses the metric system, and it probably won’t be long before the US does too. For now, if you don’t want to learn the metric system, you can simply do a little math to convert the number of stitches per inch that you desire to the metric equivalent used by your sewing machine.

While browsing the Janome Forum this morning, I saw that a forum member had asked how to convert the metric stitches to stitches per inch. It’s a really easy conversion to do, and you can do it with a calculator.

In English that equation reads, “25.4 divided by X equals Y”. X is the number of stitches per inch you want, and Y is the setting in millimeters for your sewing machine. You will probably have to round your answer to the nearest tenth of a millimeter, because sewing machines don’t have higher accuracy than that. In some cases, your sewing machine may only increment it’s stitch length setting in half millimeters, so you would round up or down as needed.

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