- Holder
- Dowty Propellers
- Revision
- 9
- Revised
- February 27, 2007
- Status
- Current
- Product
- Propeller
- Certification basis
- Part 21, CAR 10
- Models
- 5
The release keeps the latest revision of each data sheet. Model names are as the data sheet lists them.
On this page
Models · 5
| Model | Also known as | Note |
|---|---|---|
| (c) R148/4-20-4/ | Formerly Dowty Rotol Limited, then Dowty Aerospace Propellers | |
| (c) R141/4-20-4/ | Formerly Dowty Rotol Limited, then Dowty Aerospace Propellers | |
| (c) R130/4-20-4/ | Formerly Dowty Rotol Limited, then Dowty Aerospace Propellers | |
| (c) R147/4-20-4/ | Formerly Dowty Rotol Limited, then Dowty Aerospace Propellers | |
| (c) R179/4-20-4/ | Formerly Dowty Rotol Limited, then Dowty Aerospace Propellers |
Airworthiness directives · 9
ADs whose products are models on this data sheet, matched by model and maker.
STCs approved under this data sheet · 1
What the data sheet says
From the PDF’s text layer, line by line: tables lose their columns. The PDF is the record.
U.S. DEPARTMENT OF TRANSPORTATION
FEDERAL AVIATION ADMINISTRATION
TYPE CERTIFICATE DATA SHEET P-890
TCDS NUMBER P- 890
REVISION: 9
DOWTY PROPELLERS
MODEL/S: (c) R-/4-20-4/
February 27, 2007
Propellers of models described herein conforming with this data sheet (which is a part of type certificate no. 890) and other
approved data on file with the Federal Aviation Agency meet the minimum standards for use in certificated aircraft in
accordance with pertinent aircraft data sheets and applicable portions of the Civil Air Regulations/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 shaft No. 4 S.B.A.C.
Hub material Steel
Blade material Aluminum alloy
No. of blades 4
Design series eligible (c) R130, R141, R147, R148, R179 (see NOTES 1 and 9)
Blades
Eligible
Maximum
Continuous
Takeoff
Nominal
Approx Maximum
Weight Complete
(See NOTES 2 & 9) HP RPM HP RPM Diameter (For reference only)
RA25840 1120 1470 1400 1550 10' - 0" 295 lbs.
⎨ 1120 1470 1400 1550
RA25842 -- ⎨ or 10' - 0" 307 lbs.
⎨ 1365 1300 1600 1350
RA25910 1585 1350 1870 1395 10' - 0" 365 lbs.
Certification basis CAR Part 10, British Civil Airworthiness Requirements equivalent to CAR Part 14.
The FAA validated this product under U.S. Type Certificate Number P-890. 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: None
TC Application Date: May 23, 1955
TC Issued : June 13, 1955
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:
Page No. 1 2 3
Rev. No. 9 9 9
P-890 2
(1) This propeller conforms to its United States type design (TC No. P-890) and is
in a condition for safe operation.
(2) This propeller has been subjected by th e manufacturer to a final operational check
and is in a proper state of airworthine ss. 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, Ai rworthiness Certification of Civil Aircraft,
Engines, Propellers and Related Produc ts, Imported into the United States.
NOTE 1. Propeller Model Designation. The model designation of a complete Rotol propeller assembly (which
includes all rotating parts and the brush gear group but excludes the spinner front shell 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 147 / 4 -20 -4 / 20 E
Indicates propeller suitable for use with oil to
Spec'n.D.ENG. R.D. 2487 or Aviation Esso 35. Suffix
used after 3-21-58 since only synthetic oil (2487) will
be used.
S u f f i x n u m b er denotes interchangeable design standard
E n g i n e s h a f t N o . 4 S . B . A . C .
B l a d e S h a n k s i z e N o . 2 0
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. 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 only with Rotol constant speed control and synchronizing equipment.
NOTE 4. (a) Feathering. Eligible only with Rotol feathering unit and approved switches installed in
accordance with propeller manufacturer's instructions.
(b) Reversing. Not applicable.
NOTE 5. Left-Hand Model. These propellers are designed and manufactured for left-hand tractor only.
NOTE 6. Not applicable.
NOTE 7. Accessories.
(a) Propeller deicing. Eligible with only Rotol electric deicing equipment installed in accordance
with the propeller manufacturer's instructions.
(b) Spinners. Eligible only with spinners designed and supplied by Rotol.
NOTE 8. Not applicable.
3 P-890
NOTE 9. Approved Installations. Propellers listed in this specification are approved only for use in the
engine-aircraft combinations shown below:
Propeller
Model
Aircraft
Model
Engine
Model
CAA
Specifications
Aircraft Engine
(c)R130/4-20-4/12 E Vickers Rolls Royce A-814 E-283
Viscount 745D Dart 510
(c)R179/4-20-4/33 Vickers Rolls Royce A-814 E-297
Viscount 810 Dart 525, 525F
(c)R148/4-20-4/21E Vickers Rolls Royce A-814 E-283
Viscount 744 Dart 506
NOTE 10. The "word" eligib le as used herein does not signify approval.
In approval, compliance with the applicable aircraft airworthiness requirement is necessry.
NOTE 11. Propeller component life lim its are as quoted in Dowty Rotol Service Bulletin No. 61-54.
NOTE 12. 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....