# TCDS P31NE: Dowty Propellers - Type: Type certificate data sheet - Status: Current - Holder: Dowty Propellers - Revision: 1 - Revised: February 27, 2007 - Product: Propeller - Certification basis: Part 21, Part 35 - Data sheet PDF: https://openairdocs.org/files/sha256/75/30/753033fef51e62c9d66c00afa93dc046635d4f07c281d2d54ceaebebfd243b1a - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D5495528ECD1917C862576710057BDCC.0001 - Page: https://openairdocs.org/tcds/P31NE ## Models (1) As the data sheet lists them. - (c) R. 390 ## 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 P31NE TCDS NUMBER P31NE REVISION: 1 DOWTY PROPELLERS MODEL/S: (c)R. 390 February 27, 2007 Propellers of models described herein conforming with this data sheet (which is part of Type Certificate No. P31NE) 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 Federal Aviation Regulations provided they are installed, operated, and maintained as prescribed by the approved manufacturer's and other approved instructions. Type Certificate Holder Dowty Propellers Anson Business Park Cheltenham Road East Gloucester, GL2 9QH, England Type Constant speed; hydraulic (See Notes 3 and 4) Engine flange Special flange with 12 bolts and 2 dowels (all at 5.125 inches P.C.D.) Hub material Aluminum alloy Blade material: Composite glass and carbon re-inforced plastic Number of blades 4 Design series (c) R.390 BLADES (See Note 2 ) MAXIMUM CONTINUOUS HP RPM HP RPM NOMINAL DIAMETER APPROXIMATE WEIGHT 660714214-6 1,700 1,384 1,750 1,384 132 inches 216.0 lbs. CERTIFICATION BASIS: FAR 21.29 and FAR 35 effective February 1, 1965, Amendments 35-1 through 35- 6. Compliance established by equivalency to British Civil Airworthiness Requirements (BCAR) Section A Issue 24 Chapter A3-2 (Grey Paper No. A44 3 June 1980). Section C Issue 12 Chapters C1-1, C1-2, and sub-section C5, together with the installation requirements of JAR 25, Change 13, Paragraphs 33,901(c) 905, 907, 933(c), 937 and 1337, also Special Requirements detailed in CAA letter ref 9/216/11 dated 5 June 1981. Civil Aviation Authority (UKCAA) originally type certificated this propeller under its Type Certificate Number 113. The FAA validated this product under U.S. Type Certificate Number P31NE. 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 Number 113 TC APPLICATION DATE: October 5, 1992 Page No. 1 2 3 Rev No. 1 1 1 P31NE Page 2 TC ISSUED: October 15, 1992 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 (Type Certificate number P31NE) and is in a condition for safe operation. (2) This propeller has been subjected by the manufacturer to a final operational check and is in a proper state of airworthiness. Reference 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 issued. Additional guidance is contained in FAA Advisory Circular 21-23, Airworthiness Certification of Civil Aircraft, Engines, Propellers and Related Products, Imported into the United States. NOTES NOTE 1. Propeller Model Designation (c) R / 4 -123 /- F390 27 The model designation of a complete Dowty Aerospace Propeller assembly consists of the basic model designation with prefix and suffix letters and numbers as shown below: Prefix Basic model designation Suffix Suffix number denotes interchangeable design standards. Engine flange mounted Blade shank size No. 123 Number of blades - 4 Prefix number notes non-interchangeable design standard. Dowty Aerospace 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 Aerospace 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: Propeller pitch control unit. woodward governor type 663006008, 663006009, 663006010 Page 3 P31NE NOTE 4: (a) Feathering: (b) Reversing: Model incorporates feathering and unfeathering features by means of counterweights and motor/pump unit, Dowty Aerospace type (c)RFP/34. Model incorporates reversing feature. NOTE 5: Right-hand model: (c) R.390 These propellers are designed and manufactured for right- 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 De-icing: Electrical de-icing with blade de-icing to Dowty Aerospace drawing 660000929 for R390/4-123-F/27 . (b) Spinners: Dowty Aerospace spinner design (c) SB.25/4/1 and backplate 664005244 of Dowty Aerospace design. NOTE 8: 8.1 8.2 Propeller types (c) R390/4-123-F/27 supersedes propeller type R375/4-123-F/21 and features a new hub assembly. MANUALS Propellers 61-10-39 Spinner 61-10-40 Feathering Pump 61-20-26 Woodward PCU 61-20-27 Woodward OSG 61-20-28 NOTE 9: Approved installations: Propellers listed in this data sheet are approved from a vibration standpoint 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. 390/4-123-F/27 Saab SF340A SF340B Max. T/O weight: 29,000 lbs. Genl Electric CT7-5A2 CT7-5A3 CT7-9B A52EU E8NE NOTE 10: Aircraft installations must be approved as part of the aircraft type certificate and demonstrate 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 (3, in force first) - [AD 2010-05-09](https://openairdocs.org/ad/2010-05-09): Propeller blade · Dowty Propellers (c) R. 389, (c) R. 390, (c) R.354 and 1 more. Effective Apr 7, 2010 - [AD 2003-04-25](https://openairdocs.org/ad/2003-04-25): Hub joint mating surfaces · Dowty Propellers (c) R. 389, (c) R. 390, (c) R.354 and 1 more. Effective Apr 8, 2003 - [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 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.