Spin Behavior
i. Test Matrix.
A limited investigation of the SR20 spin behavior has been completed and results are contained in Cirrus Design reports 12419, title, and 15568, title. The incipient spin and recovery characteristics were examined during more than 60 total spin entries covering the following configurations. [see original for chart]
1. All spins conducted at gross weight.
2. Also evaluated accelerated entries, 30 degree banked turn entries, and effects of ailerons against the spin direction.
ii. Results.
The aircraft recovered within one turn in all cases examined. Recovery controls were to reduce power, neutralize ailerons, apply full rudder opposite to spin, and to apply immediate full forward (nose down) pitch control. Altitude loss from spin entry to recovery ranged from 1,200 – 1,800 feet. Detail results can be found in the above referenced reports.
iii. Comments.
No spin matrix less than that prescribed in AC23-8A or AC23-15, can determine that all configurations are recoverable. It must be assumed that the SR20 has some unrecoverable characteristics. In the SR20 proper execution of recovery control movements is necessary to affect recovery, and aircraft may become unrecoverable with incorrect control inputs. These spins enabled Cirrus to gain additional understanding of both the stall departure characteristics of the airplane and the necessary spin recovery techniques.