Results of experimental flights at high altitudes with Daimler, Benz and Maybach engines to determine mixture formation and heat utilization of fuel (1923)
NASA Technical Reports Server (NTRS) · leaf 12
Thousands of ft- Thousands of ft. 5 10 15 5 10 15 Daimler D IVa
NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
