CONCEPT
Cumulo-Granite
Cumulo-Granite
- Cumulo-granite is a humorous, dark aviation slang term used by pilots to describe clouds that conceal solid terrain or mountains inside them.
- A stark reminder to instrument pilots flying in mountainous regions like the Pacific Northwest to rely strictly on verified navigation charts, minimum en route altitudes (MEA), and cockpit instruments rather than visual assumptions.
- See Flying My Family IFR to Tacoma Narrows and the Full-Moon Night ILS.
These facts are as Randal recalls them, but much time has passed for most of this. If you find a factual error, please email realmerlyn@gmail.com.