TCDS P-845

Page No. 1 2 3 4 5 Rev. No. 18 18 18 18 18 DEPARTMENT OF TRANSPORTATION FEDERAL AVIATION ADMINISTRATION P-845 Revision 18 Hartzell HC-12X January 1, 1977 TYPE CERTIFICATE DATA SHEET NO. P-845 Propellers of models described herein conforming with this data sheet (which is a part of type certificate no. 845) and other approved data on file with the Federal Aviation Administration meet the minimum standards for use in certificated aircraft in accordance with pertinent aircraft data sheets and applicable portions of the Civil Air Regulations provided they are installed, operated and maintained as prescribed by the approved manufacturer's manuals and other approved instructions. Type Certificate Holder Hartzell Propeller, Inc. Piqua, Ohio Type Constant speed; hydraulic (see NOTES 3 and 4) Engine shaft SAE #20 spline Hub material Alloy steel Blade material See below No. of blades Two Hub models eligible HC-12X20-1, -2, -3, -4, -5, -6, -7, -8, -9 (see NOTES 1, 4, and 9) Approx. Max. Maximum Wt. Complete. Blades Eligible Continuous Takeoff Diameter (For ref only) (See Note 2) HP RPM HP RPM Limits (See Notes 3 & 7 Blade Construction 8046-6 to 8046-14 145 2700 145 2700 74" - 66" (-6 to -14) 60 lb. Special fabric base plastic; stainless steel or brass tipping. 8428+2 to 225 2600 225 2600 86" - 75" 62 lb. Special fabric base plastic; 8428-9 or 240 1920 260 2180 (+2 to -9) stainless steel or brass tipping. 8428C-0 to 215 2600 215 2600 84" - 75" 62, 65 lb.* Special fabric base plastic; 8428C-9 or 240 1920 260 2180 (-0 to -9) stainless steel or brass tipping. 8428CR to 215 2600 215 2600 84" 62, 65 lb.* Special fabric base plastic; 8428R or 240 1920 260 2180 62 lb. stainless steel or brass tipping. 8427+2 to 215 2600 215 2600 86" - 80" 65 lb. Special fabric base plastic; 8427-4 (+2 to -4) stainless steel or brass tipping. 8433-0 to 225 2600 225 2600 84" - 75" 67, 69 lb.* Aluminum alloy. 8433-9 (-0 to -9) 8433Z-0 to 225 2600 225 2600 84" - 78" 67, 69 lb.* Aluminum alloy. 8433Z-6 (-0 to -6) 8833-0 to or 225 2600 225 2600 87-7/8" - 83-7.8" 70, 75 lb.*** Aluminum alloy. 8833-4 260 2180 260 2180 (-0 to -4) P-845 2 Approx. Max. Maximum Wt. Complete. Blades Eligible Continuous Takeoff Diameter (For ref only) (See Note 2) HP RPM HP RPM Limits (See Notes 3 & 7 Blade Construction 9333C-0 to 260 2180 260 2180 93" - 86" 73, 79 lb.** Aluminum alloy 9333C-7 (-0 to -7) 10133D-0 to 260 2180 260 2180 101" - 95" 76 lb. Aluminum alloy 10133D-6 (-0 to -6) 10230-9 to 240 1920 260 2180 93" - 88" 70 lb. Special fabric base plastic; l0230-14 (-9 to -14) Stainless steel or brass tipping 10235-0 to 240 1995 245 2055 102" - 88" 72 in. Aluminum alloy 10235-14 *Higher weights apply to hub models -7B, -7C, and -8C. **Higher weight applies to hub model -9C. ***70 lb. for -8C model, 75 lb. for -9C model. Certification basis CAR 14 effective October 19, 1945, as amended by 14-1. Type Certificate No. 845 issued May 8, 1946. Production basis Date of application for Type Certificate January 5, 1946. Production Certificate No. 10 NOTE 1. Hub Model Designation Hub model designation HC - 1 2 X 20 - 2 AC Denotes minor change not affecting eligibility "C" denotes C-157 hub spider and associated parts "L" denotes left-hand rotation Denotes specific design features (see NOTE 4) SAE #20 spline Hartzell Blade shank size Number of blades Identifies basic design Hartzell controllable Type -1, -2, -4, -5, and -6 hubs can be used only on installations with powerplant oil pressure of 50 p.s.i. or above. A -10 following the hub serial number identifies that oversize tubes are pressed into the spider in order to accommodate worn blade bushings. 3 P-845 NOTE 2. Blade Model Designation Blade model designation L 84 27 C H R - 4 + Number of inches added to basic diameter - Number of inches cut off from basic diameter Denotes that an 8428+2 plastic blade has been reworked to 84" diameter. Used in an aluminum blade model designation denotes hard alloy. Dimensional modification from original design. (For plastic blades, "C" denotes substitute plastic.) Basic model or template Basic diameter in inches Denotes left-hand blade Diameter limits shown are nominal diameters of the assembled propeller and do not include the +1/4 inch to -1/8 inch manufacturing tolerance permissible. NOTE 3. Pitch Control. Eligible with Hartzell manual or constant speed control. Constant speed control includes the Hartzell governor Model A-1. Additional weight of governor is 3.75 lb. (NOTE: Some installations require a T-drive adapter for the governor. Additional weight of the Hartzell Model C-137 adapter is 2.5 lb., and of the Hartzell Model C-253 adapter is 2.7 lb.). NOTE 4. (a) Feathering. The -9 model incorporates a snap action feathering feature, and cannot be unfeathered in flight. (b) Reversing. The -2, -3, and -5S models incorporate hydraulically controlled reversing. NOTE 5. Left-Hand Models. The left-hand version of an approved model propeller is eligible at the same rating and diameter as listed for the right-hand model. (See NOTES 1 and 2.) NOTE 6. Interchangeability. (a) Blades. Only blades listed in the same group of the following listed groups are sufficiently similar aerodynamically and vibrationwise to permit interchangeability in the same diameter without a flight test provided all blades in the propeller are the same model. Group (1) 8428, 8428C Group (2) 8428R, 8428CR Group (3) 8433, 8433Z, 8433A Blades 8428R and 8428CR have been balanced against master blades at the factory; therefore, when one 8428R or 8428CR blade is used in an assembly, the assembly must balance statically without the use of more than 8 balancing slugs (Hartzell Part NO. A-48) attached to either blade clamp. Hard and soft alloy aluminum blades of the same model designation are interchangeable but only on seaplanes and amphibious aircraft. (b) Propellers. Only propellers listed in this data sheet may be replaced by corresponding propellers listed in Type Certificate Data Sheet No. P-917, provided the propeller model designations are the same except that the identifying basic design digit "1" (see NOTE 1) is replaced by the letter "D". P-845 4 NOTE 7. Accessories. (a) Propeller de-icing (1) Aluminum alloy blades eligible with Goodrich "Icex" shoes, when applied in accordance with Goodrich instructions. Hartzell recommends that the maximum length be limited to .7 x blade radius, measured from center of hub. (b) Propeller spinners. (1) Eligible with Hartzell Model D-164 spinner. Additional weight 3 lb. The -9 model includes a spinner. NOTE 8. Not applicable. NOTE 9. Table of Propeller-Engine Combinations Approved Vibrationwise for Use on Normal Category Single-Engine Tractor Aircraft The maximum and minimum propeller diameters that can be used from a vibration standpoint are shown below. No reduction below the minimum diameter listed is permissible, since this figure includes the diameter reduction allowable for repair purposes. Blade Model Engine Model Max. Diameter (in.) Min. Diameter (in.) Placards 8427 Franklin 6A8-215-B8F 84 82 None Franklin 6A8-215-B9F 84 82 None 8428R Continental E-185 84 82 None 8428 Continental E-185-3 84 82 None Warner Super Scarab 165 84 82 None Warner R-550-3 84 84 None Ranger 6-440-C2 84 82 None Ranger 6-440-C5 84 82 None Ranger 6-440-C2 and C5 84 82 None Lycoming 0-435C and -A 84 76 None 8433 Continental E-185 84 76 Dampened engine only, not to exceed 2600 r.p.m. at takeoff. Franklin 6A8-215-B8F 84 84 None Franklin 6A8-215-B9F 84 84 None Continental E-225 (Two 6th order dampers 84 82 Not to exceed 2600 r.p.m. at takeoff Continental E-225 (One 5th and One 6th Order Damper 84 82 Not to exceed 2600 r.p.m. at takeoff Franklin 6A8-215-B8F & B9F 84 84 None Lycoming O-435-A and -C 78 75 None Lycoming O-435-A2 78 76 None Lycoming O-435-C1 78 76 None 8628 Ranger 6-440-C2 86 86 None 8833 Ranger 6-440-C5 88 88 Avoid continuous operation between 1250 and 1600 and between 1950 and 2200 r.p.m. Continental E-225 88 86 Avoid continuous operation on ground between 1400 and 1700 and also between 1900 and 2100 r.p.m. Avoid continuous operation on ground and flight between 2450 and 2550 r.p.m. 5 P-845 (cont'd) Blade Model Engine Model Max. Diameter (in.) Min. Diameter (in.) Placards 9333C Lycoming GO-435-C2 93 91 Avoid continuous ground operation between 1675 and 2150 engine r.p.m. Lycoming GO-435-C2 90 86 None Lycoming GO-435-2-M1 93 93 Avoid continuous ground operation between 1675 and 2150 engine r.p.m. 10133D Lycoming GO-435-C2 101 101 Avoid continuous operation between 2600 & 2940 r.p.m. Lycoming GO-435-C2 98 95 None NOTE 10. Special Notes. The word "eligible" as used herein does not signify approval. For approval, compliance with the applicable aircraft airworthiness requirements is necessary. ....END.....