What is the FAR 23 Climb Requirements?

From Chapter 1, part 3, page 129 through 131, it can be seen that a twin engine aeroplane with a take off weight less than 6000 Lbs and a stall aped of less than 61 kts is required to meet the following requirements, for FAR 23 certification.

Take off climb AEO (All Engines Operating)

• Minimum climb rate of 300 ft/min at sea level

• A steady climb angle of at least 1:12

Configuration: gear up, take off flap, max cont. power all engines.

Balked landing climb AEO

• A steady climb angle of at least 1:30

Configuration: gear gown, landing flap, take-off power all engines.

Take off climb OEI (One Engine Inoperative)

For multi engine (reciprocating type) aeroplanes with a MTOW < 6,000 Lbs and with a V_so < 61 kts, the requirement is only that a steady climb rate at 5000 ft must be determined. 

Configuration: gear up, take off flap, max cont. power all engines.

Balked landing climb OEI

Note a positive climb performance is not required!

Configuration: gear gown, landing flap, take-off power all engines.