If you don’t have an app or E6-B, the POH provides a density altitude chart, where you can find the ambient DA by adjusting for field elevation using the numbers on the right side of the chart.

To top it all off, the lithium-air batteries with graphene bubbles are lighter in weight than current batteries. Less weight, less cost and more energy sounds like the future to us. Via PhysOrg ...

This is the third time when ATF prices have been reduced this year. Earlier on July 16, ATF prices were cut by 2.2 percent to Rs 138,147.93 per kl following softening in international oil prices. In ...

The misleading graph shows 0.8 civilian deaths per IDF air strike on Gaza since Oct. 7 in comparison to 11.95 per air strike in Raqqa, 17.1 in Mosul and 21.7 in Aleppo, and to a global average of ...

Experiments dropping raindrops onto ash combined with raindrop fossil imprints yield an upper limit for air density in the Archaean. About 2.7 billion years ago, towards the end of the Archaean ...

Proceedings of the Royal Society of London. Series A, Mathematical and Physical Sciences, Vol. 263, No. 1313 (Sep. 5, 1961), pp. 212-216 (5 pages) Variations in air density between day and night in ...