# TCDS P61GL: Dowty Propellers

- Type: Type certificate data sheet
- Status: Current
- Holder: Dowty Propellers
- Revision: 5
- Revised: February 27, 2007
- Product: Propeller
- Certification basis: Part 21, Part 35
- Data sheet PDF: https://openairdocs.org/files/sha256/1d/6f/1d6f3da9aae695be919a3f03dbfe61f88408572715bde9dcf6cf4a4fe67afb01
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/65018BEDE6EAC64F862576710057F986.0001
- Page: https://openairdocs.org/tcds/P61GL

## Models (4)

As the data sheet lists them.

- (c) R.334
- (c) R.333
- (c) R.321
- (c) R.324

## What the data sheet says

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

```text
U.S. DEPARTMENT OF TRANSPORTATION 
 
FEDERAL AVIATION ADMINISTRATION  
 
TYPE CERTIFICATE DATA SHEET P61GL 
 
TCDS NUMBER  P61GL 
REVISION:  5 
 
DOWTY PROPELLERS 
MODEL/S:  (c) R321, (c) R324,  
                    (c) R333, (c) R334 
 
February 27, 2007
 
Propellers of models described herein conforming with this data sheet (which is part of Type Certificate No. P61GL) and other 
approved data on file with the Federal Aviation Administration, meet the minimum standards for use in certificated aircraft in 
accordance with the pertinent data sheets and applicable 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  Dowty Propellers 
    Anson Business Park 
    C heltenham Road East 
    Gloucester, GL2 9QH, England  
 
Type Constant speed; hydraulic (see Notes 3 and 4) 
Engine Flange AS 880 
Hub Material Aluminum Alloy 
Blade Material Aluminum Alloy 
Number of Blades 4 
Design Series Eligible (c)R.321, (c)R.324, (c)R.333, (c)R.334 
 
Blades 
Eligible 
Maximum 
Continuous 
 
Takeoff 
 
Nominal 
Approx. Max. 
Wt. Complete 
(See Note 2) HP RPM HP RPM Diameter (for reference only) 
       
660709317 1100 1591 1100 1591 106 ins. 187 lbs. 
660709314 1100 1591 1100 1591 110 ins. 189 lbs. 
 
Certification Basis FAR 21.29 and British Civil Airworthiness Requirements Section C5 equivalent to 
 FAR 35 effective February 1, 1965, through amendment 5 effective October 14, 1980. 
 
Civil Aviation Authority (UKCAA) originally certificated propellers (c)R321 and (c) R324 under 
letter dated April 1981, propeller; (c) R333 under its Type Certificate Number 108; and propeller 
(c)R334 under its Type Certificate Number 115. The FAA validated this product under U.S. Type 
Certificate Number P61GL. Effective September 28, 2003, the European Aviation Safety Agency 
(EASA) began oversight of this product on behalf of the United Kingdom of Great Britain and 
Northern Ireland. 
 
TC (Import) No: UKCAA Type Certificate No. 108 for (c) R333  
 UKCAA Type Certificate No. 115 for (c) R334 
 
TC Application Date: November 5, 1980 
 
TC Issued : April 13, 1981,   
 Amended May 28, 1982, to add model (c)R.333,  
 Amended November 19, 1982, to add model (c)R.334 
 
Import requirements: To be considered eligible for installation on U.S. registered aircraft, each propeller to be 
 exported to the United States shall be accompanied by a Certificate of Airworthiness  
 for export endorsed by the UKCAA on behalf of the European Community which  
 contains the following language: 
 
 (1) This propeller conforms to its United States type design (TC No. P61GL) and is  
  in a condition for safe operation. 
 
Page No. 1 2 3 
Rev. No. 5 5 5

P61GL 2 
 (2) This propeller has been subjected by the ma nufacturer to a final operational check and is  
  in a proper state of airworthiness. Refe rence FAR Section 21.500 which provides for the  
  airworthiness acceptance of aircraft engines or propellers manufactured outside the U.S. for  
  which a U.S. type certificate has been issu ed.  Additional guidance is contained in FAA  
  Advisory Circular 21-23, Airworthiness Certif ication of Civil Aircraft, Engines, Propellers  
  and Related Products, Imported into the United States. 
 
 
Note 1. Propeller Model Designation.  The model designation of a complete Dowty Rotol propeller assembly 
 consists of the basic model designation with prefix and suffix letters and numbers as shown below: 
 
                P r e f i x  
                B a s i c  m o d e l  d e s i g n a t i o n  
                S u f f i x  
                 
  (c) R 321 /   4 -82 -F /  13  
                S u f f i x  n u m b er denotes interchangeable design standard 
                Engine Flange Mounted 
                B l a d e  S h a n k  s i z e  N o .  8 2  
                N u m b e r  o f  b l a d e s  -  4  
                Prefix number denotes non-interchangeable design standard 
                R o t o l  ( m a n u f a c t u r e r )  
                Civil (non-military) 
 
The prefix number indicates the design series, and propellers with different prefix numbers are not generally interchangeable.  
Certain models may be interchanged as complete aircraft sets on the advice of the propeller manufacturer only. 
 
The suffix number is used to record minor alterations which do not affect interchangeability. 
 
Note 2. Blade Model Designation.  Dowty Rotol propeller blades are identified by a serialized part number only 
 which does not constitute a model designation.  A dash number following the part number indicates the 
 type of finish. 
 
Note 3. Pitch Control.  Eligible with Woodward Governor type 210749 (AiResearch P/N 897410-2 or -4). 
 
Note 4. (a) Feathering.  Model incorporates feathering and unfeathering features by means of  
  counterweights and Motor/Pump Unit.   
 
 (b) Reversing.  Model incorporates reversing feature. 
 
Note 5.  Left Hand Model.  These propellers are designed and manufactured for left hand tractor only. 
 
Note 6. Interchangeable Blades.  Only blades of the same part numbers are interchangeable and may be 
 incorporated in the same propeller. 
 
Note 7. Accessories. 
 (a) Propeller Deicing.  Eligible with blade deicing to Dowty Rotol Drawing 660000902.   
 (b) Spinners.  Eligible with spinner (c) SB 10/4/1 and backplate 664005201 of Dowty Rotol design. 
 
Note 8. Not applicable.

3 P61GL 
 
Note 9. Approved Installations.  Propellers listed in this data sheet are approved only for use on the engine- 
 aircraft combinations shown below: 
 
 
Propeller Model
 
Aircraft Model
 
Engine Model
FAA Specification 
or TC Data Sheet
   Aircraft Engine
     
(c)R.321/4-82-F/8 Fairchild Swearingen Garrett-AiResearch A8SW E4WE 
 SA 227-AC TPE-331-11U-601G   
  TPE-331-11U-611G   
     
(c)R.321/4-82-F/8 Fairchild Swearingen Garrett-AiResearch A5SW  
 SA 227-AT TPE-331-11U-601G   
  TPE-331-11U-611G   
     
(c)R.324/4-82-F/9 Fairchild Swearingen Garrett-AiResearch   
 SA-227-TT TPE-331-10U-503G   
  TPE-331-10U-513G   
     
(c)R.333/4-82-F/12 Jetstream 3100 Garrett-AiResearch   
  TPE-331-10UF-501H,   
  511H, 512H, 513H   
  TPE-331-10UR-513H   
  TPE-331-10UG-513H   
  TPE-331-10UGR-513H   
     
(c)R.334/4-82-F/13 CASA.212 Garrett-AiResearch   
  TPE-331-10-501C   
 
Limitations: 
Propellers (c)R.321/4-82-F/8 and (c)R.324/4/-82-F/9. 
 
The engine minimum ground idle speed must not be less than 70 (seventy) percent of the rated takeoff speed. 
 
Propeller (c) R.333/R-82-F/12. 
 
The engine minimum ground idle speed must not be less than 68 (sixty-eight) percent of the rated takeoff speed. 
 
 
Note 10. The word "eligible" as used herein does not signify  approval as part of this type certificate.  "Eligible 
 accessories and pitch controls must be approved as part of the aircraft type certificate upon compliance 
 with the applicable aircraft airworthiness requirements." 
 
Note 11. Service Information.  Each of the documents listed below must state that it is approved by the European 
 Aviation Safety Agency (EASA) or – for approvals made before September 28, 2003 – by the  
  UKCAA. Any such documents are accepted by the FAA and are considered FAA approved.  
   • Service bulletins,  
   • Structural repair manuals,  
   • Vendor manuals,  
   • Aircraft flight manuals, and  
   • Overhaul and maintenance manuals.  
 
....END....
```

## ADs (7, in force first)

- [AD 2005-25-10 R1](https://openairdocs.org/ad/2005-25-10-R1): Propeller hubs · Dowty Propellers (c) R.321, (c) R.324, (c) R.333 and 1 more. Effective Oct 11, 2011
- [AD 2006-23-10](https://openairdocs.org/ad/2006-23-10): Blade counterweight capscrew holes · Dowty Propellers (c) R.321, (c) R.324, (c) R.333 and 1 more. Effective Nov 24, 2006
- [AD 2005-25-10](https://openairdocs.org/ad/2005-25-10) (historical): Propeller hubs · Dowty Propellers (c) R.321, (c) R.324, (c) R.333 and 1 more. Effective Dec 27, 2005
- [AD 2005-20-12](https://openairdocs.org/ad/2005-20-12) (historical): Propeller hub · Dowty Propellers (c) R.321, (c) R.324, (c) R.333 and 1 more. Effective Oct 28, 2005
- [AD 2004-13-01](https://openairdocs.org/ad/2004-13-01) (historical): Propeller Hubs · Dowty Propellers (c) R.321, (c) R.324, (c) R.333 and 1 more. Effective Jul 27, 2004
- [AD 2002-01-28](https://openairdocs.org/ad/2002-01-28) (historical): Propeller Hub · Dowty Rotol (c) R.334. Effective Feb 14, 2002
- [AD 70-16-02](https://openairdocs.org/ad/70-16-02) (historical): Link and Eyebolt Fork · Dowty Aerospace Propellers CR 289/3-110-F/1, CR 289/3-110-F/11, CR 289/3-110-F/12 and 34 more. Effective Aug 21, 1972

## STCs approved under this data sheet (3)

- [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 SP00574SE](https://openairdocs.org/stc/SP00574SE): Installation of SMR Technologies electrothermal propeller deicer P/N SMR6890 as a replacement for Safeway electrothermal propeller deicer P/N Safeway 6890 (R.333 /4-82-F/12). SMR Technologies
- [STC SP00659SE](https://openairdocs.org/stc/SP00659SE): Installation of SMR electrothermal propeller deicer P/N SMR6885 as a replacement for Safeway electrothermal propeller deicer P/N Safeway 6885.. SMR Technologies

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