Green Speed Cup – Year Two Final Results

Dean Sigler Sustainable Aviation Leave a Comment

Stemme’s Green Speed Cup, a speed and economy run that was to have sped over six days, ended on the fifth, with all five Stemmes still competing, but with a big break between the top three and the bottom five. Stemme’s web site explains the deletion of the sixth event.  “The final race of the 2012 GREEN SPEED CUP was a task of 246 km north of Berlin. Although the weather forecasts looked good this morning, the actual weather didn’t match the expectations. Thus the teams compared their powered flight capabilities as the weather didn’t offer too many possibilities for optimization.” Day five was a cat’s cradle of crossing triangles that added up to 248.2 kilometers (153.88 miles) and was …

Green Speed Cup – Year Two, Days Three and Four

Dean Sigler GFC, Sustainable Aviation 1 Comment

As the Stemme Green Speed Cup speeds into day five of a six-day series of challenges, the leaders are all – little surprise here – Stemme aircraft. Markus Scherdel took first place on day three’s task, a 346.1 kilometer (214.58 mile) triangle, with a new low in fuel consumption, 2.5 liters per 100 kilometers (94.08 mpg or 188.16 passenger miles per gallon) at an average speed of 142.2 kilometers per hour (88.16 mph). This is impressive because it comes close to requirements for Green Flight Challenge qualification. None of the five Stemmes competing managed less than 4.5 l./100 km. (52.26 mpg), right in Prius territory at much higher speeds. The Diamond DA40 TDI departed the contest because of other obligations …

Green Speed Cup – Year Two, Day Two

Dean Sigler Diesel Powerplants, Electric Powerplants, GFC, Sustainable Aviation Leave a Comment

The Green Speed Cup is a closed circuit race similar to the Green Flight Challenge, but with a more free-style approach to how each team flies the course. As reported yesterday, the first day’s competition was won by Markus Scherdel, test pilot for Solar Impulse. The second day’s competition was a complete turnaround of day one’s results, with Wolfgang Uhlig taking the crown and Markus sliding to fourth place. Most interesting, the Diamond DA40 TDI, a four-seat Diesel-powered aircraft flown by Daniel Hirth, took second place. A longer event than day one, the task required pilots to fly from Strausberg down the longest leg of a scalene triangle to Klix, a village in Saxony. From there, they turned northwest to …