Weight & Balance for Mooney M20B Mark 21
Mooney M20B Mark 21 · Weight And Balance
Overview
This document provides essential weight and balance information for the Mooney M20B Mark 21 aircraft. It is intended for pilots and aviation enthusiasts who need to understand the weight limitations and balance requirements for safe operation of the aircraft. The document outlines the maximum weight capacities, loading configurations, and methods for calculating weight and balance to ensure compliance with safety regulations. Proper weight and balance management is critical for flight safety, performance, and handling characteristics of the aircraft.
- Maximum takeoff weight: 2,800 lbs
- Maximum landing weight: 2,800 lbs
- CG limits: 34.0 inches to 40.0 inches from datum
- Fuel weight: 6 lbs per gallon
- Ensure weight distribution keeps CG within limits
Document
Source
Originally published by hartzellprop.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Weight And Balance
- Pages
- 7
- File size
- 211 KB
- Publisher
- hartzellprop.com
Specifications & performance
Extracted from this document.
Specifications
- Propeller
- HC-C2YR-1BFP/F7497
Common. Rarer than 3% of the aircraft models we track.
Most owners only have the POH. Here's the essential set for the Mooney M20B Mark 21.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
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In this document
Weight Limits
The maximum takeoff weight for the Mooney M20B Mark 21 is 2,800 lbs. The maximum landing weight is also 2,800 lbs, ensuring that the aircraft remains within safe operational limits during all phases of flight.
Center of Gravity (CG) Limits
The CG limits for the Mooney M20B Mark 21 are between 34.0 inches and 40.0 inches from the datum. It is crucial to ensure that the CG remains within these limits to maintain proper aircraft handling.
Loading Instructions
The document details specific loading instructions, emphasizing the importance of distributing weight evenly throughout the aircraft. Passengers and cargo should be loaded in a manner that keeps the CG within the specified limits.
Weight Calculation Procedures
Procedures for calculating weight and balance are provided, including the use of a weight and balance chart. Pilots are instructed to record the weight of passengers, baggage, and fuel to accurately determine the aircraft's total weight and CG position.
Fuel Weight
The weight of fuel is calculated at 6 lbs per gallon. This is an important factor in determining the overall weight and balance of the aircraft.
Safety notes
- Always verify weight and balance before flight.
- Improper loading can lead to loss of control during flight.
Full document text
Hartzell Propeller Inc. One Propeller Place Piqua, OH 45356 INST_011007 Page 1 of 7 1/10/07 Revision E, 10/13/10 INSTRUCTIONS FOR INSTALLATION OF A HARTZELL HC-C2YR-1BFP/F7497 PROPELLER ON MOONEY M20(A-G,J) AIRCRAFT STC SA02414CH-D LOG OF REVISIONS Revision Revised Description of Revision Date Pages New All Original Release 1/10/07 A All Added original type-certificated spinner models 835- 8/15/08 20(P) and 835-33(P) to M20A through M20G aircraft models for clarification B All Added STC compatibility note on page 2, re- 10/16/09 paginated C All Corrected typographical error in dates on page headings, and added "End" to page 6. 12/11/09 0 All 1/7/10 E 2,3,4,6 Added clarification Note 3, page 2; 103585 composite spinner model option, pages 2 and 3; 103585 spinner weight and balance data, page 6; Revision D header, all pages; repaginated. Added "blunt" aluminum spinner model 835-58(P) that is equivalent to the 835-20(P) and 835-33(P) models. NOTE: All changes are indicated by a black vertical line along the left margin. FAA Approved B-Emy Brian E. Meyer STC ODA administrator Hartzell STC ODA-100082-CE 10/13/10 Date OCTOBER 15, 2010 Page 2 of 7 1/10/07 Revision E, 10/13/10 INST_011007 INSTRUCTIONS FOR INSTALLATION OF A HARTZELL HC-C2YR-1BFP/F7497 PROPELLER ON MOONEY M20(A-G,J) AIRCRAFT STC SA02414CH-D COMPATIBILITY NOTES: 1) The HC-C2YR-1BFP/F7497 propeller is compatible with all pressure-to-increase pitch governor models listed in the Aircraft Type Certificate Data Sheet (TCDS) 2A3 or Hartzell Propeller TCDS P-920. 2) This STC is compatible with the following Power Flow Systems, Inc STCs for tuned exhaust systems: Mooney M20B, M20C, M20D, M20G: Mooney M20E, M20F, and M20J: STC SA02549AT STC SA02871AT 3) Hartzell spinner models 835-20(P) and 835-33(P) are approved under the aircraft Type Certificate 2A3 and are compatible with this STC. 4) Hartzell spinner assembly model 835-58(P) is approved and is equivalent to spinner models 835-20(P) and 835-33(P). The 835-58(P) assembly consists of a 103937(P) dome and C-4549-1(P) bulkhead adapter. Application Table Airplane Model S/N Range M20A 1201 - 1700, 1700A Engine O-360-A1(A,D) 1701 - 1851 M20B O-360-A1(A,D) 1853-1939 1852, 1940 – 3466 - 670001-670123 670125-670134 670136-670149 680001-680077 M20C 680079-680099 O-360-A1(A,D) 680101-680198 690001 – 690096, 690098 700001-700052 700055 - 700089, 700091 20-0001-20-1258 M20D* 1, 101-260 Table continued on next page O-360-A1D Spinner Model** 835-20(P), 835- 33(P), 835-54(P), 835-58(P), 103585 835-20(P), 835- 33(P), 835-54(P), 835-58(P), 103585 835-20(P), 835- 33(P), 835-54(P), 835-58(P), 103585 835-20(P), 835- 33(P), 835-54(P), 835-58(P), 103585 Airplane Model M20E M20F Page 3 of 7 1/10/07 Revision E, 10/13/10 INST_011007 INSTRUCTIONS FOR INSTALLATION OF A HARTZELL HC-C2YR-1BFP/F7497 PROPELLER ON MOONEY M20(A-G,J) AIRCRAFT STC SA02414CH-D S/N Range 101-400 470 - 1217 1219, 1221 1223-1308 670001-670062 690001-690073 700001-700039 700041 - 700043 700045 - 700052, 700055, 700056, 700060, 700061 21-0001-21-1180 660002 - 660004 670001-670363 670365-670385 670387-670482 670484670539 680001-680206 690003 – 690090, 690092 700001-700061 700063-700066 700070 - 700072 22-0001-22-1439 680001-680164 M20G 690001690020 700001 - 700006 M20J 24-0002 and up Engine IO-360-A1A IO-360-A1A Spinner Model** 835-20(P), 835- 33(P), 835-54(P), 835-58(P), 103585 835-33(P), 835- 54(P), 835- 58(P), 103585 O-360-A1D 10-360-A(1,3)B6(D) 835-20(P), 835- 33(P), 835-54(P), 835-58(P), 103585 A-2295-5(P) *Fixed pitch installation on M20D must first be converted to constant-speed configuration for eligibility. **Models M20(A-G) with M20J-style cowling modifications may require the A-2295-5(P) spinner 1. Remove the original propeller and spinner per the applicable Mooney Service Manual. 2. NOTE: Some Hartzell steel-hub propellers incorporate a phenolic spacer between the propeller and engine-mounting flange. When installing an aluminum hub propeller, this spacer is to be discarded. The aluminum hub propeller mounting o-ring is located on the inside diameter of the propeller hub. There should not be an o-ring on the engine flange when installing an aluminum hub propeller. Install new propeller and spinner in accordance with Hartzell Owner's Manual Number 115N. Follow installation instructions for "Installation of "K" and "R" Flange Propellers" in Section 3 of Manual 115N. 3. Page 4 of 7 1/10/07 Revision E, 10/13/10 INST_011007 INSTRUCTIONS FOR INSTALLATION OF A HARTZELL HC-C2YR-1BFP/F7497 PROPELLER ON MOONEY M20(A-G,J) AIRCRAFT STC SA02414CH-D NOTE: Follow the instructions for “Spinner Bulkhead to Propeller Hub Installation" in the “Spinner Pre-Installation" section of Manual 115N for the A-2295-5(P) spinner. Use the "Spinner Adaptor to Starter Ring Gear Installation" instructions for the 835-20(P), 835-33(P), 835-54(P) and 835-58(P) spinners. Attach applicable Hartzell Propeller Inc. Airplane Flight Manual Supplement AFMS_011007_(1,2, or 3) to the existing M20( ) Pilot's Operating Handbook / FAA Approved Airplane Flight Manual. 4. Based on aircraft model, re-mark tachometer as shown below: 5. For M20A-D, G, J (models with 180 Hp O-360-( ) or damped 200 Hp 10-360-( )1( )6 engines) Radial Red Line (Rated) Green Arc 2700 RPM 2100-2700 RPM For M20E, F (models with un-damped 200 Hp IO-360-( )1( ) engines) Radial Red Line (Rated) Green Arc 2700 RPM 2100-2350 RPM & 2550-2700 RPM Yellow Arc - No continuous ops >24" MP 2350-2550 RPM NOTE: The HC-C2YR-1BFP/F7497 STC propeller alleviates the requirement to comply with the RPM restrictions of Hartzell Propeller AD 77-12-06R2 (superceeded), AD 2002-09-08, and/or Mooney AD 65-12-03. The colored arcs can be marked with Operating Range Decals from Aircraft Spruce and Specialty (www.aircraftspruce.com), P/N 10-03905 or equivalent green decal, tape, or paint. If needed, Advisory Circular AC 20-88A provides guidelines on marking aircraft powerplant instruments.
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On M20E, F models only (un-damped 200 Hp IO-360-( )1( ) engines), install the following placard near the tachometer. Placard is either supplied with STC documentation or can be fabricated by the installer. Continuous operation is prohibited above 24" MP between 2350 - 2550 RPM 6. Revise weight and balance records to show: Page 5 of 7 1/10/07 Revision E, 10/13/10 INST_011007 INSTRUCTIONS FOR INSTALLATION OF A HARTZELL HC-C2YR-1BFP/F7497 PROPELLER ON MOONEY M20(A-G,J) AIRCRAFT STC SA02414CH-D Removal of the original Type Certified propeller and spinner. Reference the Mass Properties table below for the appropriate weight and moment arm. Mooney Type Certificated Propellers Mass Properties M20A or B Type Certified Propeller 2D36C14/78KM-4 Aircraft Model Weight Moment Arm McCauley 59 lbs -31.5 D-2135/2136 Spinner 3 lbs -31.5 Hartzell HC-92ZK-8D/8447-12A 65 lbs -29.5 835-6 Spinner 3 lbs -28.0 Hartzell HC-C2YR-1()/( )7666( )-2 53.75 lbs -30.16 835-20 Spinner 3.25 lbs -29.18 M20C or D McCauley 2D34C53-A/74E-0 49.25 lbs -30.31 D-2808/3148 Spinner 3.28 lbs -29.18 Hartzell HC-C2YR-1()/( )7666( )-2 53.75 lbs -30.16 835-20 Spinner or 3.25 lbs -29.18 835-33 for S/N 69-0001 & up M20E Hartzell HC-C2YR-1( )/( )7666( )-2 Mooney 680014-000 Spinner 53.75 lbs -30.16 3.6 lbs -29.18 Mooney 680014-501 Spinner 3.6 lbs -29.18 or 835-20 or 835-33(P) Spinner 3.25 lbs -29.18 M20F or G Hartzell HC-C2YR-1()/( )7666( )-2 Mooney 680014-501 Spinner 53.75 lbs -35.16 3.6 lbs -34.18 or 835-20 or 835-33(P) Spinner 3.25 lbs -34.18 McCauley 2D34C53-A/74E-0 49.25 lbs -35.31 D-2808/3148 Spinner 3.28 lbs -34.18 M20J McCauley B2D34C212/78CDA-4 Hartzell HC-C2YR-1()/( )7666( )-3Q or B2D34C214/90DHB-16E(P) Mooney 680031-505 Mooney 680031-507 Spinner 49.5 lbs -35.5 4.8 lbs -35.0 54.25 lbs -35.5 4.8 lbs -35.0 Page 6 of 7 1/10/07 Revision E, 10/13/10 INST_011007 INSTRUCTIONS FOR INSTALLATION OF A HARTZELL HC-C2YR-1BFP/F7497 PROPELLER ON MOONEY M20(A-G,J) AIRCRAFT STC SA02414CH-D Installation of Hartzell HC-C2YR-1BFP/F7497 propeller and spinner per the Application Table (pages 2 & 3). Use the weights provided in the following table and the moment arms provided in the Mass Properties table for the propeller and spinner you are replacing. STC Propeller & Spinner Hartzell HC-C2YR-1BFP/F7497 Weight 58.1 lbs 835-20(P) Spinner 3.25 lbs 835-33(P) Spinner 3.25 lbs 835-54(P) Spinner 4.1 lbs 835-58(P) Spinner 3.1 lbs 103585 Spinner (composite) 3.35 lbs Or A-2295-5P Spinner 5.8 lbs M20J weight and balance example: Remove - Weight of Hartzell HC-C2YR-1()/()7666()-3Q propeller = -54.25 lbs Moment arm = -35.5 inches (forward of datum) Weight of spinner 680031-507 = -4.8 lbs Moment arm = -35.0 inches Install - Weight of HC-C2YR-1BFP/F7497 propeller = +58.1 lbs Moment arm = -35.5 inches Weight of spinner A-2295-5(P) = +5.8 lbs Moment arm = -35.0 inches 7. Perform ground engine run for a functional and leak check of the Hartzell propeller installation. 8. Make the appropriate logbook entries and return aircraft to service with FAA Form 337 referencing STC. 9. 10. Page 7 of 7 1/10/07 Revision E, 10/13/10 INST_011007 INSTRUCTIONS FOR INSTALLATION OF A HARTZELL HC-C2YR-1BFP/F7497 PROPELLER ON MOONEY M20(A-G,J) AIRCRAFT STC SA02414CH-D Fly a functional check-flight using normal procedures, note maximum RPM setting and readjust governor high-RPM stop if necessary. Post-installation dynamic balance of the propeller/engine combination is recommended, but not required, per Section 61-00-15 of Hartzell Owner's Manual 115N. END