See! You can gain 10 MPH by switching back to MPH!




;)

knots
 

simple: Knots

I am ambidextrous and can use all three systems in various situations. For flight planning, I use 150 knots along with knotical miles which makes it easy to roughly guess trip/leg durations. On the rare occasion I have to file a flight plan...knots.

Airspeed indicator...MPH.

Easy: knots are for airplanes and boats, mph are for cars...

Just ask any aircraft company (Boeing, Airbus, General Dynamics, Lockheed, etc...)

Since all charts are in NM, it makes sense to use knots both for planning and flying.

Yep...Harbor Pilots (and its a good gig, from all reports!)

and...Nope...not MPH (they'd be tossed out of the bridge, and overboard...in which case it wouldn't be such a good gig!) :eek:

Where's the popper?! ;)

Cheers,
Bob

We should use Strawberries
 

We should use strawberries. After all it is just a number. Just make sure you use one number, stick with it, and have an easy way to convert to other measurements.

I use the numbers in the POH for the plane I am flying and ensure the ASI is referenced as to what it indicates. I do not mind doing the calculations between knots, statute miles or kph as I have flown all three many times.

I do prefer knots though as 1 nautical mile is one minute of arc on a great circle track.

I will use knots in my RV-4 as that is the standard here in Europe.

The use of knots has come out of maritime history and being British I am kinda proud of our history of circumnavigation, measurements of time and other discoveries.

Older General Aviation/Military/Non Aviation Civilians
 

Older General Aviation/Military/Non Aviation Civilians

Started flying: General Aviation aircraft were with ASI's in MPH.

Military: Knots

Non Aviation Civilians: MPH

Best way that I have found is to fly using knots, now a days.

Exception: If aircraft is using an ASI carded with MPH. Many still are MPH.

Know the simple conversion: 1.15/0.87

A Knot equals one minute of latitude. That's a pretty fundamental link to what you see on your charts.

Did you mean "nautical mile" instead of "knot?"

Yes, clearly.

Another reason that I like nm (and, just to be clear about it, by extension, nm/hr or "knots") is that it is very close to exactly 2 km (similarly, 2 km/hr), which is the Canadian standard for speeds on the road. So when I talk to my non-aviation friends it makes the conversion to road speeds extremely easy to approximate in my head.