AIRCRAFT WEIGHT AND BALANCE (PA34-200) PFC-QA-103
Piper PA-34 Seneca III · Weight And Balance
Overview
This document provides the weight and balance information for the Piper PA-34-200 Seneca III. It includes details on standard empty weight, maximum takeoff and landing weights, and passenger weight calculations. The document is essential for pilots to ensure that the aircraft is loaded within safe limits for flight operations. It also outlines standard passenger weights for different seasons and provides formulas for calculating Vref and landing weight. This information is critical for maintaining the aircraft's performance and safety during operations.
- Standard Empty Weight: Includes unusable fuel and full oil.
- Maximum Takeoff Weight: 4200 lbs.
- Maximum Landing Weight: 4000 lbs.
- Total Fuel Capacity: 93 gallons (6.0 lbs/gallon).
- Standard passenger weights vary by season: 206 lbs male in summer, 212 lbs in winter.
Document
Source
Originally published by www.pacificflying.com. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type
- Weight And Balance
- Year
- 2022
- Pages
- 2
- File size
- 365 KB
- Publisher
- www.pacificflying.com
Specifications & performance
Extracted from this document.
Specifications
- Fuel capacity (gal)
- 93.6
- Max takeoff weight (lb)
- 4,200
Weight & balance
- Baggage allowance (lb)
- 100
- Max landing weight (lb)
- 4,000
- Max takeoff weight (lb)
- 4,200
Most owners only have the POH. Here's the essential set for the Piper PA-34 Seneca III.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins
- Type Certificate (TCDS)
More Piper PA-34 Seneca IIImanuals & documents
See all 16 →- TYPE CERTIFICATE DATA SHEET NO. A7SOType Certificate
- PILOT’S OPERATING HANDBOOK AND FAA APPROVED AIRPLANE FLIGHT MANUALPilot's Operating Handbook
- AIRWORTHINESS BULLETIN Piper PA 34 Seneca Fuel Shutoff / Selector ValveService Bulletins
- Piper PA-34 Seneca III Systems DescriptionSystems Description
- AIRPLANE PARTS CATALOGParts Catalog
- SCHEDULE OF AIRWORTHINESS DIRECTIVESAirworthiness Directives
- Piper Seneca Service ManualService Manual
- SCHEDULE OF AIRWORTHINESS DIRECTIVESAirworthiness Directives
- Airworthiness Directives; Piper Model PA-28-150/160, PA-28-180, PA-28-181, PA-28-235, PA-28-236, PA-28-201T, PA-28R-180, PA-28R-200, PA-28R-201, PA-28R-201T, PA-28RT-201, PA-28RT-201T, PA-32-260, PA-32-300, PA-32R-300, PA-32RT-300, PA-32RT-300T, PA-32-301, PA-32-301T, PA-32R-301, PA-32R-301T and PA-34-200T AirplanesAirworthiness Directives
- Specifications for the Piper PA-34 Seneca IIISpecifications
- Airplane Flight Manual for Piper PA-34 Seneca IIIFlight Manual
- Training Manual for the Piper PA-34 Seneca IIITraining Manual
In this document
Weight and Balance Summary
The document outlines the standard empty weight of the PA-34-200 Seneca, which includes unusable fuel and full oil. It provides a breakdown of weights for the pilot, front passenger, rear passengers, and baggage, along with maximum limits for zero fuel weight and takeoff weight.
Fuel Calculations
Fuel calculations are provided, including total fuel capacity of 93 gallons, with a conversion factor of 6.0 lbs per gallon. It specifies the fuel required for start, taxi, and run-up, and outlines the trip fuel burn.
Standard Passenger Weights
Standard weights for passengers are provided, varying by season. For summer, the weights are 206 lbs for males, 172 lbs for females, 75 lbs for children, and 30 lbs for infants. Winter weights are slightly higher.
Vref Calculation
The document includes a formula for calculating Vref based on landing weight and flap configuration. It provides specific values for Vso and the corresponding Vref for both 0 flap and 40 flap configurations.
Weight vs. Center of Gravity Envelope
A note on the moment change due to retracting landing gear is included, indicating a change of 32 in-lbs, which is important for maintaining the center of gravity within safe limits.
Safety notes
- Ensure that the aircraft is loaded within the specified weight limits for safe operations.
- Use actual weights for passengers when possible to ensure accurate calculations.
Full document text
AIRCRAFT WEIGHT AND BALANCE (PA34-200) PFC-QA-103 PFC-QA-103 Weight & Balance-PA34-200 Page 1 of 2 Issue Date: 01 Jun 2022 Revised: Initial Issue Aircraft Type: PA34-200 Seneca Registration: ITEM WEIGHT (LBS) ARM (In-Aft) MOMENT (In-Lbs) Standard Empty Weight (Unusable Fuel and Full Oil Included) Pilot and Front Passenger ** 85.5 Passengers (rear seats) ** 155.7 Baggage Forward (Max 100 Lbs) 22.5 Baggage Aft (Max 100 Lbs) 178.7 Zero Fuel Weight (4000 Lbs Max) Total Fuel (Mains = 93 Total) ( Gallons x 6.0 lbs/US gal) 93.6 Fuel for Start, Taxi, and Run-Up (2.5 Gallons x 6.0 lbs/US Gal) -15 93.6 -1404 Takeoff Weight (4200 Lbs Max) Trip fuel burn (Gals x 6 Lbs/US Gal) 93.6 Landing Weight (4000 Lbs Max) IAS Vref at Landing Weight Air time flown to get to landing weight ___________Hrs ** See Over for Standard Passenger Weights Vref Calculation Vso PA34 Vso x 1.3 = A _____________ 0 Flap 76 40 Flap 69 Landing Weight Square Root (√) √𝐿𝑎𝑛𝑑𝑖𝑛𝑔 𝑊𝑒𝑖𝑔ℎ𝑡 𝐺𝑟𝑜𝑠𝑠 𝑊𝑒𝑖𝑔ℎ𝑡 = B ______________ Gross Weight 0 Flap A x B = Vref CAS ___________________ IAS 70 80 90 CAS 72 82 92 40 Flap IAS 70 80 90 CAS 70 80 90 AIRCRAFT WEIGHT AND BALANCE (PA34-200) PFC-QA-103 PFC-QA-103 Weight & Balance-PA34-200 Page 2 of 2 Issue Date: 01 Jun 2022 Revised: Initial Issue STANDARD WEIGHTS (Actual Weights Should be Used When Possible): Standard Passenger Weights Summer (15 Mar – 14 Dec) Winter (15 Dec – 14 Mar) 206 Lbs Male/Gender X (>12 Yrs) 212 Lbs 172 Lbs Female (>12 Yrs) 178 Lbs 75 Lbs Child (2-11 Yrs) 75 Lbs 30 Lbs *Infant (<2 Yrs) 30 Lbs *Add in where infant exceeds 30 Lbs Reduce weight by 13 Lbs if no carry-on baggage for male/female WEIGHT VERSUS C OF G ENVELOPE Moment Change due to retracting Landing Gear = 32 in-lbs.