SERVICE INSTRUCTION SIM20-133
Mooney M20R Ovation · Weight And Balance
Overview
This Service Instruction (SIM20-133) from Mooney International Corporation provides guidelines for the operation of overweight aircraft, specifically addressing the Mooney M20 series. It outlines the necessary precautions and procedures for safely operating the aircraft beyond its certified gross weight. The document emphasizes the importance of adhering to weight and balance limits, as well as the need for a Special Flight Permit when exceeding these limits. It also includes recommendations for inspections following hard or overweight landings, ensuring the aircraft's structural integrity and safety during operation.
- Maximum weight for overweight operations is 3870 lbs.
- C.G. limits for overweight operations: 48.0 in (forward) and 51.0 in (aft).
- Load factors allowed: +2.5G, -1G.
- Maneuvering speed (V_A) is 101.5 KIAS; V_Y is 115 KIAS.
- Stall speeds vary by weight and configuration, with detailed tables provided.
Document
Source
Originally published by mooney.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Weight And Balance
- Year
- 2018
- Pages
- 5
- File size
- 199 KB
- Publisher
- mooney.com
Specifications & performance
Extracted from this document.
Specifications
- Max takeoff weight (lb)
- 3,870
V-speeds
- VA
- 101.5
- VR
- 115
- VY
- 115
Weight & balance
- Max takeoff weight (lb)
- 3,870
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- 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 & Balance
The existing center of gravity envelope at and below 3368 pounds remains unchanged. The structural weight and balance envelope is expanded for overweight operations, with specific center of gravity (C.G.) points provided for weights up to 3870 pounds. The forward C.G. limit is 48.0 inches, and the aft C.G. limit is 51.0 inches.
Overweight Limitations
The document specifies load factors for overweight operations, allowing +2.5G and -1G negative. Maneuvering speed (V_A) is 101.5 KIAS, while the best rate of climb speed (V_Y) is 115 KIAS. Stall speeds are provided in a detailed table, varying with weight and flap configurations.
Recommended Inspections
Following a hard landing or overweight landing, several areas should be inspected, including the main landing gear, tail skid, and propeller for damage. Specific conditions to look for are detailed, ensuring that any potential damage is addressed before returning the aircraft to service.
Safety notes
- Weight cannot exceed specified limits in this Service Instruction.
- Installation of a recordable G-meter is recommended for flights exceeding certified gross weight.
- If load factors have been exceeded, contact Mooney support with recorded data.
Full document text
SERVICE INSTRUCTION 165 Al Mooney Road North Kerrville, Texas 78028 SERVICE INSTRUCTION SIM20-133 Date: AUGUST 30, 2018 MOONEY INTERNATIONAL CORPORATION MOONEY INTERNATIONAL CORPORATION - 165 Al Mooney Road North, Kerrville, Texas 78028 tel: 830-896-6000 www.mooney.com Page 1 of 5 SUBJECT: OPERATION OF OVERWEIGHT AIRCRAFT MODELS/ SN M20M - ALL AFFECTED: M20R - ALL M20S - ALL M20TN - ALL M20U - ALL M20V - ALL TIME OF AS REQUIRED COMPLIANCE: INTRODUCTION: In order to ferry an aircraft beyond the range of standard capacity fuel tanks and to carry re- quired survival equipment it becomes necessary to exceed the aircraft’s certified gross weight. The purpose of this Service Bulletin is to outline the limits of weight, center of gravity, aircraft’s velocity and load factors for flights exceeding certified gross weight. A Special Flight Permit is required and is downloaded from the FAA’s website at www.faa.gov Mooney recommends to review the most current revision of FAA AC No. 21- 4B and FAR 21.197(b) when required. The attached compliance card needs to be filled out and returned to Mooney Interna- tional Corporation upon compliance of this Service Instruction SIM20-133. WARNING: MOONEY AIRCRAFT WEIGHT CANNOT EXCEED THESE NUMBERS LISTED IN THIS SERVICE INSTRUCTION SIM20- 133. MOONEY RECOMMENDS THE INSTALLATION OF A RECORDABLE G-METER FOR FLIGHTS EXCEEDING CERTIFIED GROSS WEIGHT. INSTRUCTIONS: Read entire procedures before beginning work. WEIGHT & BALANCE: 1.1. The existing center of gravity envelope at and below 3368 pounds remains unchanged. The structural weight and balance envelope will be expanded as shown in Figure SIM20-133-1. POINT C.G (IN.). WEIGHT (LB) OVER WT. FWD. 48.0 3870 OVER WT. AFT. 51.0 3870 115% OVER WEIGHT C.G. POINTS TABLE 1.1 - CENTER OF GRAVITY SERVICE INSTRUCTION 165 Al Mooney Road North Kerrville, Texas 78028 SERVICE INSTRUCTION SIM20-133 Date: AUGUST 30, 2018 MOONEY INTERNATIONAL CORPORATION MOONEY INTERNATIONAL CORPORATION - 165 Al Mooney Road North, Kerrville, Texas 78028 tel: 830-896-6000 www.mooney.com Page 2 of 5 WEIGHT POUNDS FIGURE SIM20-133-1 - STRUCTURES CENTER OF GRAVITY ENVELOPE SERVICE INSTRUCTION 165 Al Mooney Road North Kerrville, Texas 78028 SERVICE INSTRUCTION SIM20-133 Date: AUGUST 30, 2018 MOONEY INTERNATIONAL CORPORATION MOONEY INTERNATIONAL CORPORATION - 165 Al Mooney Road North, Kerrville, Texas 78028 tel: 830-896-6000 www.mooney.com Page 3 of 5 OVERWEIGHT LIMITATIONS: 1.1. LOAD FACTORS: +2.5G, -1G negative 1.2. MANEUVERING SPEEDS: V A 101.5 KIAS 1.3. PERFORMANCE SPEEDS: VY 115 KIAS 1.4. STALL SPEEDS: See Table 1-2 - Stall Speeds Bank Angle 0 deg 30 deg 45 deg 60 deg Weight (lb) Gear and Flap Positions KCAS KIAS KCAS KIAS KCAS KIAS KCAS KIAS 3873 Gear Up, Flaps 0 deg 71.7 71.6 77.1 76.8 85.3 84.9 101.5 100.9 Gear Down, Flaps 10 deg 71.2 71.2 76.5 76.6 84.7 84.9 100.7 101.1 Gear Down, Flaps 33 deg 64.6 64.7 69.4 69.5 76.8 76.8 91.3 91.2 3368 Gear Up, Flaps 0 deg 66.9 66.8 71.9 71.7 79.6 79.3 94.6 94.1 Gear Down, Flaps 10 deg 66.4 66.4 71.4 71.4 79.0 79.1 93.9 94.2 Gear Down, Flaps 33 deg 60.2 60.4 64.7 64.8 71.6 71.7 85.1 85.1 3000 Gear Up, Flaps 0 deg 63.1 63.1 67.8 67.7 75.1 74.9 89.3 88.9 Gear Down, Flaps 10 deg 62.7 62.6 67.3 67.3 74.5 74.6 88.6 88.6 Gear Down, Flaps 33 deg 56.8 57.0 61.1 61.2 67.6 67.7 80.4 80.4 2700 Gear Up, Flaps 0 deg 59.9 59.9 64.4 64.3 71.2 71.1 84.7 84.3 Gear Down, Flaps 10 deg 59.5 59.3 63.9 63.8 70.7 70.7 84.1 84.3 Gear Down, Flaps 33 deg 53.9 54.1 57.9 58.1 64.1 64.2 76.2 76.3 TABLE 1-2 - STALL SPEEDS CAUTION: MOONEY RECOMMENDS THE INSTALLATION OF A RECORDABLE G-METER FOR FLIGHTS EXCEEDING CERTIFIED GROSS WEIGHT. IF LOAD FACTORS HAVE BEEN EXCEEDED, CONTACT MOONEY SUPPORT AT support@mooney.com WITH RECORDED DATA. RECOMMENDED HARD LANDING AND OVER WEIGHT INSPECTIONS 1.2.0 The following are areas recommended to be inspected when a “hard landing” or over weight landing has occurred. Since a “hard landing” is a relative term and an overweight landing may have occurred, it is up to the owner/operator to advise maintenance personnel when the inspections are to be accomplished. However, since this may be overlooked during preliminary discussions, the mechanic/technician should inspect the aircraft for the following: 1.2.1 Mud shield missing or damaged on either or both main landing gear. 1.2.2 Main landing gear shock biscuits condition, compressed or extruded rubber. 1.2.3 Tail skid damage or damage to bulkhead that attaches tail skid. 1.2.4 Propeller strike marks or other visual damage. 1.2.5 Engine or engine mount damage. SERVICE INSTRUCTION 165 Al Mooney Road North Kerrville, Texas 78028 SERVICE INSTRUCTION SIM20-133 Date: AUGUST 30, 2018 MOONEY INTERNATIONAL CORPORATION MOONEY INTERNATIONAL CORPORATION - 165 Al Mooney Road North, Kerrville, Texas 78028 tel: 830-896-6000 www.mooney.com Page 4 of 5 1.2.6 Nose landing gear leg assembly damage near steering lugs. 1.2.7 Pilot/Co-Pilot's seat adjustments supports/tubes bent from excessive G-loads. NOTE: If any evidence of damage or abnormal observations are found, it is recommended that a thorough inspection of all the above areas be done and repairs be made as necessary. Contact FAA personnel for incident report requirements. 1.3. Return aircraft to service. NOTE: Fill out compliance card and send by MAIL, FAX or EMAIL to Mooney International Corporation as indicated on the attached Compliance Card (see to Figure M20-133-2). 1.4. Procedure complete. WARRANTY: N/A REFERENCE 1. Mooney Service and Maintenance Manual (applicable A/C) DATA: 2. Mooney AFM/POH (applicable A/C) 3. Mooney MMR-51 115% Over Gross Ferry Weight Company Report 4. Federal Aviation Administration - Advisory Circular 21.4B 5. Federal Aviation Administration - FAR 21.197 - Special Flight Permits PARTS LIST: Refer to Mooney Service Parts Department for part procurement.
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Parts Kit P/N: Service Instruction Kit Item P/N Description Qty N/A SERVICE INSTRUCTION 165 Al Mooney Road North Kerrville, Texas 78028 SERVICE INSTRUCTION SIM20-133 Date: AUGUST 30, 2018 MOONEY INTERNATIONAL CORPORATION MOONEY INTERNATIONAL CORPORATION - 165 Al Mooney Road North, Kerrville, Texas 78028 tel: 830-896-6000 www.mooney.com Page 5 of 5 MOONEY INTERNATIONAL CORPORATION KERRVILLE, TEXAS 78028 - FAX 830- 257- 4635 SERVICE (BULLETIN) (INSTRUCTION) NO.________________HAS BEEN COMPLIED WITH ON AIRCRAFT MODEL _______________ SERIAL NUMBER ________________ Tach. Time: Owner: N-Number (Reg. No.) Date of Compliance: Complied By: Form 07-0001 Inspection Report: MOONEY INTERNATIONAL CORPORATION ATT’N: TECHNICAL SUPPORT 165 Al Mooney Road, North Kerrville, Texas 78028 PLACE STAMP HERE SEND TO: Mooney International Corporation 165 Al Mooney Road North Kerrville, TX 78028 FAX: (830) 257-4635 or EMAIL support@mooney.com Figure SIM20-133-2 - Compliance Card