Spin Recovery Altitude

[Thumper45]

Must recover by 2000AGL.
So to be entering a spin for training you should be at least 3000AGL to allow for 1000ft loss of altitude in a 1 turn recovery. In my experience recovery is often before 1000ft of altitude loss but if you are training you need room for error.

According to the POH it should be allowed 1000ft of altitude loss for each turn.

Keep in mind this is on a 172M to be exact. It would depend on the aircraft as some take longer times to recover.

[Big Pistons Forever]

All of the C 172 POH's specify that spins should be entered at a high enough altitude that recovery will be at, at least 4000 ft AGL

[Aviatard]

All of the C 172 POH's specify that spins should be entered at a high enough altitude that recovery will be at, at least 4000 ft AGL

Cessna 172N POH, Section 4 Normal Procedures:

It is recommended that, where feasible, entries be accomplished at high enough altitude that recoveries are completed 4000 feet or more above ground level. At least 1000 feet of altitude loss should be allowed for a 1 turn spin and recovery, while a 6-turn spin and recovery may require somewhat more than twice that amount. For example, the recommended entry altitude for a 6-turn spin would be 6000 feet above ground level. In any case, entries should be planned so that recoveries are completed well above the minimum 1500 feet above ground level required by FAR 91.71.