Cub Crafters CC11-100 Pilot Operating Handbook page 148

SECTION 7
AIRCRAFT AND SYSTEMS
It is important that the pilot become knowledgeable about
carburetor icing and the use of the carburetor heat. Cub
Crafters recommends the following publication, available
from the FAA website:
Advisory
Precautions and Procedures to be taken in
Preventing Aircraft Reciprocating Engine
Induction System and Fuel System Icing
Problems.
AS CARBURETOR ICE ACCUMULATES, IT
PRODUCES AN EXCESSIVELY RICH AIR/FUEL
MIXTURE. THE ENGINE MAY START TO LOSE
POWER OR STOP COMPLETELY. AT THIS POINT,
THERE MAY NOT BE SUFFIECIENT HOT AIR IN THE
ENGINE COMPARTMENT TO MELT THE
ACCUMULATION OF CARBURETOR ICE, EVEN
WHEN THE CARBURETOR HEAT CONTROL IS IN
In general, follow these practices:
When icing conditions exist, apply carburetor heat often
in all flight regimes. The main symptom of icing in the
induction system will be loss of power.
Never use partial carburetor heat. Partial heat could
make matters worse. Remember, full heat or nothing.
Be especially vigilant at lower power settings. It is good
practice to use carburetor heat during any descent where
you have reduced power, especially for landing.
In conditions conducive to icing or if ice was noted during
engine run-up, perform another carburetor heat check
REPORT SC10000AFM
Page Number: 7-6
Circular
WARNING
THE FULL "HOT" POSITION.
CUB CRAFTERS
20-113 -
Issued: 08/01/06
Date of Revision: 11/23/18
CC11-100
Pilot