Green Arc

[N-43121]

Re: Green Arc

Tim,

I think you should consider carefully what you are trying to accomplish with the "bottom of the green arc" marking. Depending on your stall speed under normal weight and landing configuration, you certainly wouldn't want the green arc to imply that it safe to fly at a lower airspeed than stall.

Rod

[Marv]

Re: Green Arc

Tim,

I think you should consider carefully what you are trying to accomplish with the "bottom of the green arc" marking. Depending on your stall speed under normal weight and landing configuration, you certainly wouldn't want the green arc to imply that it safe to fly at a lower airspeed than stall.

Rod

I agree with this. You may know your airplane stalls at 40 mph, but the markings are for anyone including a staranger to the airplane. How would you feel if a stranger was stealing your airplane and got killed in a crash because of the wrong markings on the airspeed. Ha Ha Marv

[Robert Lees]

Re: Green Arc

there are no specific airspeed indicator marking requirements under CAR 4. It appears to me that the DO NOT EXCEED 140 MPH placard was the only requirement related to airspeed limits under CAR 4

Correct.
But a red-line at the 140mph (in our case) ASI mark satisfies this requirement. For the life of me, I can't find the legal definition for this either, but my ad-hoc recollection is that the 140mph limit must be placarded, either on the instrument or by a separate placard in view of the pilot. Or words to that effect.

[Guest]

Re: Green Arc

check out CAR 4.743 and CAR 4.4632 regarding speed limitations