# TCDS P-891: Hartzell Propeller Inc.

- Type: Type certificate data sheet
- Status: Current
- Holder: Hartzell Propeller Inc.
- Revision: 16
- Revised: December 22, 2014
- Product: Propeller
- Certification basis: Part 14, CAR 14
- Data sheet PDF: https://openairdocs.org/files/sha256/55/8d/558d5196918fde5c9108cbab1107f7c936b96d94b4c3185f039a260db0c06c8a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1CA997BDDB41C46E86257DEF007042BA.0001
- Page: https://openairdocs.org/tcds/P-891

## Models (4)

As the data sheet lists them.

- HC-93Z30-2
- HC-93ZF-2
- HC-93Z20-2
- HC-93Z20-1

## What the data sheet says

From the PDF's text layer, line by line; tables lose their columns. The PDF is the record.

```text
DEPARTMENT OF TRANSPORTATION P-891 
  FEDERAL AVIATION ADMINISTRATION Revision 16 
   Hartzell 
   HC-93Z 
  TYPE CERTIFICATE DATA SHEET NO. P-891 December 22, 2014 
 
Propellers of models described herein conforming with this data sheet (which is part of Type Certificate No. P -891) 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 appli cable portions of the Federal Aviation 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, OH 45356 
    Type Constant speed; hydraulic (see NOTES 3 and 4) 
 Engine shaft SAE Spline (see NOTE 1) 
 Hub material Alloy Steel 
 Blade material Aluminum Alloy 
 Number of blades Three 
 Hub models HC-93ZF-2; HC-93Z20-1, -2; HC-93Z30-2 (see NOTES 1 and 4) 
 
 
  Maximum   Diameter Approx. Max. Wt. Complete 
 Blades Continuous  Takeoff Limits (For Reference Only) 
 (See NOTES 2 and 6) HP RPM  HP RPM (see NOTE 2) (See NOTES 3 and 7) 
        Hub Models HC-93Z20-1, -2; HC-93Z30-2 
          9349-0 390 2330  420 2330 93” to 80” 105 lb. 
 to 9349-13      (-0 to -13)  
          9350-0 390 2330  420 2330 93” to 80” 105 lb. 
 to 9350-13      (-0 to -13)  
          10151-0 390 2180  400 2180 101” to 90” 108 lb. 
 to 10151-11      (-0 to -11)  
          10151C-0 390 2180  400 2180 101” to 90” 108 lb. 
 to 10151C-11      (-0 to -11)  
          10152-5 1/2 450 2300  450 2300 95 1/2” to 88” 119 lb. 
 to 10152-13      (-5 1/2 to -13)  
           11451-4 390 1700  390 1700 110” to 100” 122 lb. 
 to 11451-14      (-4 to -14)  
        Hub Model HC-93ZF-2 
         10151-8 300 2070  340 2140 93” to 90” 108 lb. 
 to 10151-11      (-8 to -11)  
         
 
 Certification Basis: Civil Air Regulations Part 14 effective March 5, 1953 with amendments 14-1 and 14-2 thereto. 
  Type Certificate no. P-891 issued July 22, 1955. 
     Date of application for type Certificate: April 13, 1955 
     The following models were included in the original certification basis: 
  HC-93Z20-2, HC-93Z20-1, HC-93Z30-2, and HC-93ZF-2 
   
 Production Basis: Production Certificate no. 10

P-891 2 of 5 
Revision 16 
 NOTE 1:   Hub Model Designation 
 
           HC  - 9    3    Z   20  - 2   B1 
         “1” denotes new split ring (AD 58-4-2) 
         L denotes left hand rotation 
         Any other character denotes minor change not affecting eligibility 
                   Denotes specific design features (see NOTE 4) 
                   20 denotes SAE no. 20 spline 
         30 denotes SAE no. 30 spline 
         F denotes special flange, 4” B.C. 
                   Hartzell blade shank size 
                   Number of blades 
                   Identifies basic design (see NOTE 6) 
                   Hartzell Controllable 
 
 NOTE 2:    Blade Model Designation 
 
             L   93  49  H  - 3Q 
       Number of inches cut off from basic diameter 
       Q when used denotes special 1” x 90 deg. factory-bent tip for cutoff diameter 
       R denotes rounded tip 
       Any other character denotes a tip shape not affecting eligibility 
               B or K when used denotes deicing boots 
       H denotes hard alloy (see NOTE 6) 
       N denotes shank modification (see NOTE 6) 
       Any other character denotes a minor modification not affecting eligibility 
               Basic model or template 
               Basic diameter in inches 
               Denotes left hand blades 
 
 
 NOTE 3:   Pitch Control 
     (a) Approved with Hartzell governors per drawings C-4770 and C-4772.      Wt.: 4.5 to 6 lb. (see NOTE 10) 
 
                          B  - 1  -  4    Z                                  Governor Model Designation 
       
      L when used indicates left hand rotation 
      Z when used indicates drive coupling type 
      Any other character denotes a minor change not affecting eligibility 
      
     Minor adjustment not affecting eligibility 
      
     Minor adjustment to obtain engine/propeller/governor compatibility 
      
     Basic body and major parts modification 
   
  (b) All models have counterweighted blades and use governor oil to decrease pitch.  (see NOTE 4) 
    (c) Governors must be approved as part of the aircraft installation regardless of manufacturer.  (see NOTE 10) 
    (d) Maximum control pressure for all models: 400 psig 
 
 NOTE 4: (a) Feathering The -1 models do not feather.  The -2  models incorporate feathering and unfeathering features. 
      (b) Reversing Not applicable

3 of 5 P-891 
  Revision 16 
 
 NOTE 5: Left-Hand Models 
    The left-hand version of an approved model propeller is approved at the same rating and diameter as listed for 
    the right-hand model.  (See NOTES 1 and 2) 
 
 
 NOTE 6: Interchangeability 
    (a) Blades  
       (1) 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. 
Group (1) 9349, 9350. 
     (2) Blades with the suffix “N” in the basic model number may replace those without an “N” either 
individually or as a set.  When the aircraft Type Certificate or Supplemental Type Certificate specifies 
blades with the letter “N” in the basic model number, the “N” character must be retained in all 
replacement blade models. 
  For 
example: 
Blades without the “N” suffix may be replaced by “N” suffix blades. 
Blades with the “N” suffix may only be replaced by “N” suffix blades. 
     (3) Hard and soft alloy blades of the same model designation are interchangeable.  (See NOTE 2) 
    (b) Propellers  
      Only propellers listed in this data sheet may be replaced by corresponding propellers listed in Type 
Certificate Data Sheet no. P-907 provided the propeller designations are the same except that the identifying 
basic digit “9” (see NOTE 1) is replaced by the letter “B”. See Table below (read across same row). 
 
   Prop models on TCDS P-891        may be replaced by Corresponding models on TCDS P-907 
   HC-93Z20-1 
HC-93Z20-2 
HC-93Z30-2 
HC-93ZF-2 
 HC-B3Z20-1 
HC-B3Z20-2 
HC-B3Z30-2 
HC-B3ZF-2 
      (c) Governors (See NOTE 3) 
      Hartzell governors with a “Z” suffix in their model designation may be used interchangeably with 
corresponding governors without the “Z”.  For example, the F-6-24Z is a replacement for the F-6-24 and the 
F-6-24 is a replacement for the F-6-24Z. 
      The Hartzell B-0 is the only model which is interchangeable with the Hamilton Standard 1M12 or 1Q12.  
Other Hartzell models are not interchangeable with any Hamilton Standard model without modification of 
the latter. 
      (d) Ice Protection Systems 
       Refer to Hartzell service Letter HC-SL-30-260 for ice protection system component interchangeability

P-891 4 of 5 
Revision 16 
 
 NOTE 7: Accessories  
     (a) Propeller ice protection system (weight of ice protection equipment extra) 
       (1) Propeller models listed in this data sheet are approved for use with propeller ice protection equipment 
listed in Manual 159 or in other Hartzell type design data. 
     (2) All propeller ice protection equipment must be approved as part of the aircraft installation regardless 
manufacturer.  (See NOTE 10) 
      (b) Propeller spinner (weight of spinner extra) 
    (1) Approved with Hartzell and other manufacturer's spinners when listed on Hartzell type design data. 
      (2) All propeller spinners must be approved as part of the aircraft installation regardless of manufacturer. 
(See NOTE 10) 
 
 NOTE 8: Shank Fairings Not applicable 
 
 NOTE 9: Special Limits 
 
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. 
 
The engine models listed below are the configurations on the engine type certificate unless specifically stated otherwise.  
Modifications to the engine or airframe that alter the power of the engine models listed below during any phase of operation have 
the potential to increase propeller stresses and are not approved by this list.  Such modifications include, but are not limi ted to, 
the addition of a turbocharger or turbonormalizer, incre ased boost pressure, increased compression ratio, increased RPM, altered 
ignition timing, electronic ignition, full authority digital engine controls (FADEC), or tuned induction or exhaust.  Also, a ny 
change to the mass or stiffness of the crankshaft/counterweight assembly is not approved by this list. 
 
 Hub Blade  Max. Dia. Min. Dia.  
 Model Model Engine Model (inches) (inches) Placards 
        HC-93Z20 9349 Lycoming R-680-9 
Lycoming R-680-13 
88 
88 
82 
88 
none 
none 
        HC-93Z20 9350 Lycoming R-680-9 
Lycoming R-680-13 
88 
88 
82 
88 
none 
none 
        HC-93Z20 10151 Lycoming GSO-480-A1A6 93 90 none 
        HC-93Z20 10151 Lycoming GO-480-G1D6 93 93 Avoid continuous operation 
between 3000 and 3350 engine 
RPM.  Avoid descents at high 
engine speeds with less than 15 
in. Hg manifold pressure. 
        HC-93Z20 10151C Lycoming GO-480-G1D6 101 95 none 
        HC-93Z30 10152-5 ½ 
 
P&WA R-985 with one 4 ½ order 
and one 9th order crankshaft 
damper 
95 ½ 
 
95 ½ 
 
none 
        HC-93Z30 10152-7 ½ 
 
P&WA R-985 with one 4 ½ order 
and one 9th order crankshaft 
damper 
93 ½ 
 
93 ½ 
 
Avoid continuous operation 
between 1600 and 1850 RPM

5 of 5 P-891 
  Revision 16 
 
 
 NOTE 10: The propeller installation must be approved as part of the aircraft Type Certificate and demonstrate 
compliance with the applicable aircraft airworthiness requirements. 
       Propeller models listed herein consist of basic hub and blade models.  Most propeller models include 
additional characters to denote minor changes and specific features as explained in NOTES 1 and 2.  Refer to 
the aircraft Type Certificate Data Sheet for the specific propeller model applicable to the installation. 
 
 NOTE 11: Retirement Time  
     (a) Life Limits and Mandatory Inspections 
      (1) Airworthiness limitations, if any, are stated in Hartzell Manual 114B or Service Letter 61( ). 
 
 NOTE 12: Special Notes 
    Refer to Hartzell Manual no. 202( ) for overspeed and overtorque limits. 
 
END
```

## ADs (6, in force first)

- [AD 2005-14-11](https://openairdocs.org/ad/2005-14-11): Failed propeller blade · Hartzell Propeller BHC-92W, BHC-92ZF-1, BHC-92ZF-3 and 391 more. Effective Aug 17, 2005
- [AD 67-06-04](https://openairdocs.org/ad/67-06-04): Blades · Hartzell Propeller HC-93Z30-2, HC-B3W30 and HC-B3Z30-2. Effective Mar 4, 1969
- [AD 63-13-03](https://openairdocs.org/ad/63-13-03): Blade Angle · Hartzell Propeller HC-93Z30-2 and HC-B3Z30-2. Effective Jul 23, 1963
- [AD 61-03-03](https://openairdocs.org/ad/61-03-03): Cylinders · Hartzell Propeller HC-93Z30-2 and HC-B3Z30-2. Effective Feb 13, 1961
- [AD 57-08-04](https://openairdocs.org/ad/57-08-04): Link Arm · Hartzell Propeller HC-83X20-1, HC-83X20-2, HC-83XF-1 and 8 more
- [AD 58-04-02](https://openairdocs.org/ad/58-04-02): Split Ring · Hartzell Propeller HC-93Z20-2 with STC SA4-2

## STCs approved under this data sheet (3)

- [STC SP01222WI](https://openairdocs.org/stc/SP01222WI): Installation of Aircraft Development propeller vortelators.. Aircraft Development Co
- [STC SP00582NY](https://openairdocs.org/stc/SP00582NY): Installation of Prop-Guard Polyurethane Protective Tape on the leading edge of metal propellers.. McFarlane Aviation, Inc.
- [STC SPW-2](https://openairdocs.org/stc/SPW-2): Modification of Hamilton Standard4A2-V5 propeller governor to NWP-D18 on aircraft with Pratt & Whitney R-985 engines.. Northwest Propeller Inc

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