TCDS TC 791

CURTISS C543S PROPELLER T.C. 791 Type Electrically controllable - feathering (see NOTES 3 and 4) Blade shank No. 3 Special Engine shaft SAE No. 50 Hub material Steel Blade material Steel Number of blades Hubs eligible C543S (See NOTE 1) Blades Propeller weight Eligible COmE IDOLS Takeoff Diameter Complete See NOTE 2 HP RPM HP RPM Limits (Max. Dia.) NOTES 14-1C3-1 1625 1275 2000 1350 1218" - 4309" 602 1b. 814-1C3-30 814-1C3-0 to 1500 1050 1700 1225 15'2" 1502" - 12"8" 604 1b. 814-1C3-30 814-3C3-18 to 1750 1275 2000 1350 13'6" - 12'6" 602 1b. 814-3C3-30 (-18 to -30) 814-4C3-18 to 1750 1275 2000 1350 13'6" - 12'6" 602 1b. 814-4C3-30 (-18 to -30) Certification basis Type Certificate No. 791 (Expired February 16, 1956. No propellers of this model manufactured after that date eligible for use on certificated aircraft.) TE 1. Hub Model Designatio A dash and a letter, or a dash and a letter and a number, added to the hub model signation indicates a minor change whic does not affect its eligibility. NOTE 2. to the basic model number. For hollow steel blades the model designation consists of a series of numbers and A change in the suffix indicates a minor change. Blades of the same model with minor changes are equally eligible, but only blades with a like suffix should be assembled in the same hub. NOTE 3. Pitch Control. Eligible only with Curtiss manual control, constant speed governor, or automatic NOTE 4. synchernizer Eligible with full feathering control and voltage booster installed in accordance with the propeller manufacturer's instructions. NOTE 5. Left Hand Model. The left hand version of an approved model propeller is eligible at the same rating and diameter limitations as listed for the right hand model. VOTE 6. Interchangeable Bgable only with Curtiss deicing slinger ring assembleis, Not applicable. NOTE 8. NOLE I. Cuffs are eligible only on those model blades specifically designated. Refer to the pertinent propeller specification and determine whether an assembly of the blade model in question is eligible to incorporate a cuff. (b) Refer to the pertinent aircraft specification and determine whether the same model blade with cuff is eligible in the propellers of that aircraft model. (c) When cuffs are installed, increase the propeller weight according to the following table: 814 blades, add 17 1b.