Federal Aviation Regulations
Sec. 23.1097 — Carburetor deicing fluid system capacity.
(a) The capacity of each carburetor deicing fluid system—(1) May not be less than the greater of—
(i) That required to provide fluid at the rate specified in §23.1095 for a time equal to three percent of the maximum endurance of the airplane; or
(ii) 20 minutes at that flow rate; and
(2) Need not exceed that required for two hours of operation.
(b) If the available preheat exceeds 50 °F. but is less than 100 °F., the capacity of the system may be decreased in proportion to the heat rise available in excess of 50 °F.
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