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Using the FAA registry: http://registry.faa.gov/aircraftinquiry/AcftRef_Inquiry.aspx

Total number of Cirrus are 4,600

Total number of Piper are 45,000

Given the age of the Piper fleet assume 25% are not flying that leaves about 34,000 assumed to be flying somewhat regularly.

All the Cirrus are new enough to be flying regularly.

NTSB for 2015:

18 Cirrus crashes, 5 fatal.

206 Piper crashes, 52 fatal.

The ratio holds for number flying, number crashing and number fatal. The Cirrus is no more crash-prone than any other aircraft…and the parachute reduces fatalities.

USFlyer wrote:

There are about 4,500 Pipers flying in the USA, 6,000 Cirrus.

USFlyer wrote:

Total number of Cirrus are 4,600

Total number of Piper are 45,000

So not only were the number of Pipers off by a factor of 10, but also you had about 30% too many Cirrus a/c?

USFlyer wrote:

Given the age of the Piper fleet assume 25% are not flying that leaves about 34,000 assumed to be flying somewhat regularly.

Even given this assumption, your original figure was off by a factor 7-8.

Last Edited by Airborne_Again at 24 Dec 20:05

Actually the **6000** Cirrus SR2x was about right ;-) COPA used that number this year.