Springdale, Pennsylvania. Springdale is a borough and township in Allegheny County, Pennsylvania, 18 miles (29 km) northeast of Pittsburgh along the Allegheny River. The population was 3,405 at the 2010 census.
how many miles per hour can you drive on a spare tire? Most spares recommend that you do not drive over 50 mph, and you do not drive more... how fast can you drive on a donut (spare tire)? Normally speed on a spare tire is rated to 50mph.
To get there in half the time we should start out moving about twice as fast. The HTO requires us to start with about 33 km/s speed from near Earth. To get there twice as fast weâd need to start out around 60 km/s. That would mean delta-vee around 30 km/s instead of 3. This is ten times larger D v, or ten times more fuel! Weâd also have a big increase in the amount of fuel needed at Mars to slow down from such a high speed.