WWYK263009_65 Design Analysis_Part25.pdf

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Bomber Agile Common Hangar; 4-Dock Hangar at Tinker Air Force Base
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W912BV25S0014
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About this file

This file contains mechanical design calculations for the air system sizing, building airflow, chilled water hydronic, and heated water hydronic systems for the Bomber Agile Common Hangar (BACH) project at Tinker Air Force Base.

The calculations detail specifications for multiple air handling units (AHUs) and fan coil units (FCUs), with AHU-D sized for 38,601 CFM serving a 34,508 square foot hangar bay area with 15,529 CFM of outdoor ventilation air. The hydronic calculations include comprehensive pipe sizing, control valve specifications, and heat exchanger details for both chilled and heated water systems. The design includes over 400 pipes ranging from 0.822 to 7.981 inches in diameter, multiple control valves sized for specific flow rates between 0.4-67 gal/min, and heat exchangers configured for constant heat rate operation. The mechanical systems are designed to maintain specific temperature and pressure parameters, with the chilled water system using 30% propylene glycol at 42°F and the heated water system operating at 140°F.

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Air System Sizing Summary for AHU-D (In Alternative: Proposed Building BACH)

Project: TAFB BACH HAP6.2 11/04/2024

Prepared by: LARSON DESIGN GROUP 11:02 AM

Air System Information Air System Name AHU-D Equipment Class CW AHU Air System Type SZCAV

Number of zones 1 Floor Area 34508.3 sqft Location Tinker Afb, OK, USA

Sizing Calculation Information Calculation Months Jan to Dec Sizing Data Calculated

Zone CFM Sizing Sum of space airflow rates Space CFM Sizing Individual peak space loads

Central Heating Coil Sizing Data Max coil load 1464.6 MBH Coil CFM at Design Heating 38601 CFM Max coil CFM 38601 CFM Water flow @ 20.0 F drop N/A

Load occurs at Design Heating BTU/(hr sqft) 42.4 Ent. DB / Lvg DB 57.2 / 93.8 F

Supply Fan Sizing Data Design CFM 38601 CFM Design CFM/sqft 1.12 CFM/sqft

Fan motor BHP 21.14 BHP Fan motor kW 16.77 kW Fan total static 2.00 in wg

Outdoor Ventilation Air Data Design airflow CFM 15529 CFM CFM/sqft 0.45 CFM/sqft

CFM/person 310.57 CFM/person

Hourly Analysis Program 6.2 Page 71 of 81

Zone Sizing Summary for AHU-D

Project: TAFB BACH HAP6.2 11/04/2024

Prepared by: LARSON DESIGN GROUP 11:02 AM

Air System Information Air System Name AHU-D Equipment Class CW AHU Air System Type SZCAV

Number of zones 1 Floor Area 34508.3 sqft Location Tinker Afb, OK, USA

Sizing Calculation Information Calculation Months Jan to Dec Sizing Data Calculated

Zone CFM Sizing Sum of space airflow rates Space CFM Sizing Individual peak space loads

Zone Terminal Sizing Data

Zone Name

Design Supply Airflow

(CFM)

Minimum Supply Airflow

(CFM)

Zone CFM/sqft

Reheat Coil

Capacity

(MBH)

Reheat Coil

Water gpm

@ 20.0 F

Zone Htg Unit

Coil Capacity

(MBH)

Zone Htg Unit Water gpm

@ 20.0 F

Mixing Box Fan Airflow

(CFM)

Hangar Bay - D 38601 38601 1.12 0.0 0.00 0.0 0.00 0

Zone Peak Sensible Loads

Zone Zone Zone

Cooling Time of Heating Floor

Sensible Peak Sensible Load Area

Zone Name (MBH) Cooling Load (MBH) (sqft)

Hangar Bay - D 0.0 January 8:00 1193.4 34508.3

Space Loads and Airflows

Zone Name / Space Name

Cooling Sensible

(MBH)

Time of Peak

Sensible Load

Air Flow

(CFM)

Heating Load

(MBH)

Floor Area (sqft)

Space CFM/sqft

Hangar Bay - D

000 Hangar Bay D 0.0 January 8:00 38601 1193.4 34508.3 1.12

Hourly Analysis Program 6.2 Page 72 of 81

Air System Heat Balance Summary for AHU-D

Project: TAFB BACH HAP6.2 11/04/2024

Prepared by: LARSON DESIGN GROUP 11:02 AM

Table 1. System Loads

DESIGN COOLING - JULY 15:00 DESIGN HEATING

OA DB / WB 100.4 F / 73.5 F OA DB / WB 0.0 F / 0.0 F

COMPONENT LOADS Details Sensible [BTU/hr]

Latent [BTU/hr]

Details Sensible [BTU/hr]

Latent [BTU/hr]

Zone Conditioning - 100380 19016 - 1208565 0

Plenum Load - 0 0 - 0 0

Return Fan Load 38601 CFM 0 - 38601 CFM 0 -

Ventilation Load 15529 CFM -159019 -18961 15529 CFM 312063 0

Supply Fan Load 38601 CFM 57224 - 38601 CFM -57224 -

Zone Fan Coil Fans Load - 0 - - 0 -

>> Total System Loads - -1416 55 - 1463404 0

Central Heating Coil - 0 - - 1464610 -

>> Total Conditioning - 0 0 - 1464610 0

Key:

Positive values are cooling loads Negative values are heating loads

Positive values are heating loads Negative values are cooling loads

Table 2. Zone Heat Balance Loads

DESIGN COOLING - JULY 15:00 DESIGN HEATING

OA DB / WB 100.4 F / 73.5 F OA DB / WB 0.0 F / 0.0 F

Zone Heat Balance Component Details Sensible [BTU/hr]

Latent [BTU/hr]

Details Sensible [BTU/hr]

Latent [BTU/hr]

Exterior Wall Convection 25613 sqft -15328 - 25613 sqft 124290 -

Roof Convection 741 sqft -331 - 741 sqft 3006 -

Window Convection 2808 sqft -4666 - 2808 sqft 40845 -

Skylight Convection 0 sqft 0 - 0 sqft 0 -

Door Convection 10737 sqft -10443 - 10737 sqft 94224 -

Floor Convection 34508 sqft -19267 - 34508 sqft 102421 -

Interior Wall Convection 36907 sqft -28623 - 36907 sqft 89255 -

Ceiling Convection 33768 sqft -102422 - 33768 sqft 349388 -

Overhead Lighting Convection 28297 W 40842 - 0 W 0 -

Task Lighting Convection 0 W 0 - 0 W 0 -

Electric Equipment Convection 69016 W 176621 - 0 W 0 -

People Convection 50 4425 22750 0 0 0

Infiltration 1809 CFM -34232 -22242 2245 CFM 151307 0

Miscellaneous Equipment - 0 0 - 0 0

Air Internal Energy Change - -6575 - 0 0

Safety Factor 15% / 10% 0 51 25% 238684 0

>> Total Zone Loads - 0 559 - 1193419 0

Key:

Positive values are cooling loads Negative values are heating loads

Positive values are heating loads Negative values are cooling loads

Note 1: Surface convection line items show the combined effects of conductive heat gain to the surface and radiative heat gains absorbed at the surface which are then convected to room air.

Note 2: Lighting, equipment, and people line items include only the direct convective heat gain from the heat source to the room air. The radiative portion of the heat gain is first absorbed by surfaces in the room and then later convected from the surface to the air.

Therefore the effect of the radiative portion of the heat gain is found in the surface convection line items.

Note 3: Solar heat gain is absorbed by surfaces in the room, re-radiated to other surfaces, and finally convected from the surfaces to room air. Therefore, the effect of solar heat gain is found in the surface convection line items.

Hourly Analysis Program 6.2 Page 73 of 81

System Psychrometrics for AHU-D

Project: TAFB BACH HAP6.2 11/04/2024

Prepared by: LARSON DESIGN GROUP 11:02 AM

WINTER DESIGN HEATING

TABLE 1: SYSTEM DATA

Dry-Bulb Specific Sensible Latent Temp Humidity Airflow CO2 Level Heat Heat Component Location (F) (lb/lb) (CFM) (ppm) (BTU/hr) (BTU/hr)

Ventilation Air Inlet 0.0 0.00082 15529 400 -312063 0

Air-to-Air Energy Recovery Outlet 45.5 0.00082 15529 400 -730961 0

Vent - Return Mixing Outlet 57.2 0.00082 38601 400 - -

Central Heating Coil Outlet 93.8 0.00082 38601 400 1464610 -

Supply Fan Outlet 95.3 0.00082 38601 400 57224 -

Cold Supply Duct Outlet 95.3 0.00082 38601 400 - -

Zone Air - 65.0 0.00082 38601 400 -1208565 0

Return Air Outlet 65.0 0.00082 38601 400 - -

Air Density x Heat Capacity x Conversion Factor: At sea level = 1.080; At site altitude = 1.031 BTU/(hr-CFM-F) Air Density x Heat of Vaporization x Conversion Factor: At sea level = 4746.6; At site altitude = 4529.3 BTU/(hr-CFM) Site Altitude = 1291.0 ft

TABLE 2: ZONE DATA

Zone Terminal Zone Sensible Zone Zone Zone CO2 Heating Heating Load T-stat Cond Temp Airflow Level Coil Unit Zone Name (BTU/hr) Mode (BTU/hr) (F) (CFM) (ppm) (BTU/hr) (BTU/hr)

Hangar Bay - D -1208565 Heating -1208565 65.0 38601 400 0 0

Hourly Analysis Program 6.2 Page 74 of 81

Building Airflow Calculations

Zone Name /

Space Name cfm/sqft cfm/unit

Storage Chemical Hazardous 1.5

Restrooms 2 70

1-1

119 DOCK OFFICE 8.6 398 400 1.6 425.7 0.93 0.94 58.80 130 0 0

127A MT 2.2 102 110 0.6 84.2 1.21 1.31 10.00 50 0 0

ZONE TOTAL 510 180 0

1-2

118A CORRIDOR 7.6 353 360 2.8 794.5 0.44 0.45 47.70 105 0 0

118VEST. 2.5 114 120 0.8 110 1.04 1.09 6.60 50 0 0

121 MENS 5.6 257 250 1.8 390.6 0.66 0.64 0.00 0 2 780

122 JAN 1.3 58 50 0.4 48.2 1.20 1.04 0.00 0 1 50

123 WOMENS 3.6 168 200 1.4 284.6 0.59 0.70 0.00 0 2 570

124 WELL 2.1 97 100 0.6 96.5 1.01 1.04 5.80 50 0 0

126 VEST. 9 417 420 8.8 202.7 2.06 2.07 12.20 50 0 0

ZONE TOTAL 1500 255 1400

1-3 Printer/Copy 0.5

107 PSC 18.7 864 870 15.6 942.2 0.92 0.92 130.10 150 0 0 Break Rooms 0.3

107A Corridor 3.2 148 150 1.3 147.6 1.00 1.02 8.90 50 0 0 Janitor 1

ZONE TOTAL 1020 200 0

1-4 Maintenance Areas 0.5

105 CORRIDOR 11.7 541 540 10.9 1129.9 0.48 0.48 67.80 100 0 0

108 DOCK OFFICE 9.8 452 460 1.8 504.3 0.90 0.91 69.70 100 0 0

ZONE TOTAL 1000 200 0

1-5

104 TOOL CRIB 26.9 1243 1600 18.3 1837.5 0.68 0.87 380.70 400 0 0

1-6

103 TOOL CHECKOUT 6.1 282 290 1.7 368.3 0.77 0.79 27.10 60 0 0

104C TC OFFICE 3.3 155 160 0.9 144.1 1.07 1.11 13.60 50 0 0

ZONE TOTAL 450 110 0

1-7

104A COMPOSITE 38 1757 1760 30.1 1861.3 0.94 0.95 385.00 500 0.5 931

1-8

100 VEST. 2.2 101 110 0.7 75.1 1.34 1.46 4.50 7 0 0

100A CORRIDOR 7.5 346 350 8.5 306.4 1.13 1.14 18.40 28 0 0

101 FOM STORAGE 14.3 658 1200 17.7 1547.6 0.43 0.78 92.90 200 0 0

101A FOM OFF. 4.7 215 370 1.8 406.3 0.53 0.91 29.40 70 0 0

ZONE TOTAL 2030 304 0

FCU-3

128 LO STOR 3194.3 206 210 0 0

129 EKIT PASSAGEWAY 232.80 0

FCU-4

127 PMD 2244.2 310

FCU-5

125 BRK RM/TORNADO SHELTER 1216.8 310 350 310

125A CLOSET 61.1

125B M 88.6 100 120 100

125C W 85.00 100 120 100 VENT EXHAUST

3270 2850

Totals 146.4 6762 9870 109.3 9270.6 0.73 1.06 2085.20 3259 2841

Ratio 1.50

Pressurization

Adj

(x1.1) 3125

DOAS-1

AHU-1 AIRFLOW CALCULATIONS AHU-1 VENTILATION/PRESSURIZATION CALCULATIONS

Exhaust Requirements

Adj Space

CFM/sqft

Uncorrected

Outdoor Air

(CFM)

Adj Outdoor Air

(CFM)

Exhaust Rate

(CFM/sqft)

Exhaust

(CFM)

Space

CFM/sqft

Cooling

Sensible

(MBH)

Air Flow

(CFM)

Adj Air Flow

(CFM)

Heating

Load (MBH)

Floor Area

(sqft)

Storage Chemical Hazardous 1.5

Restrooms 2 70

2-1 Printer/Copy 0.5

026 DLA/IPV 19.3 892 1100 12.6 921.6 0.97 1.19 127.3 150.0 0 0 Break Rooms 0.3

027 VEST. 2.3 106 110 0.8 85.2 1.24 1.29 5.1 50.0 0 0 Janitor 1

028 CORRIDOR 5 233 240 4.5 223.6 1.04 1.07 13.4 50.0 0 0 Maintenance Areas 0.5

ZONE TOTAL 1450 250.0 0

2-2

025 COMPOSITE 19.8 914 1200 13.9 1032.7 0.88 1.16 235.9 750.0 0 0 x1.1

2-3

018 VEST. 1 64 70 0.5 85.8 0.75 0.82 5.1 10.0 0 0

019 CORRIDOR 1.7 107 150 1.2 335.8 0.32 0.45 20.1 1170.0 0 0

020 JAN 1.1 67 70 0.5 90.3 0.74 0.78 0 0.0 1 90

022 MENS 3.5 221 250 1.9 460.6 0.48 0.54 0 2 930 WEST Vent Total

023 WOMENS 2.5 155 200 4.6 337.1 0.46 0.59 0 2 680 2195.0

024 VEST. 1.5 97 100 3.8 91.7 1.05 1.09 5.5 15.0 2 190

ZONE TOTAL 840 1195.0 1890

2-4

007 CORRIDOR 14.7 679 680 22.2 1524.7 0.45 0.45 91.5 100.0 0 0

012 DOCK OFFICE 18.4 851 860 9.2 840.9 1.01 1.02 116.1 120.0 0 0 x1.1

ZONE TOTAL 1540 220.0 0 1270.5

2-5

008 DOCK OFFICE 5 269 450 2.1 467.4 0.57 0.96 33 50.0 0 0

009 MENS 1.5 80 80 1.1 302.3 0.26 0.26 0 0.0 2 605

010 JAN 0.2 13 50 0.2 43.9 0.28 0 0.0 0 0

011 WOMENS 2.5 134 170 5.2 272.4 0.49 0.62 0 0.0 2 550

ZONE TOTAL 750 50.0 1155

FCU-6

021 BRK RM/TORNADO SHELTER 1404.2 584 590.0 0.3 420

021A WELL 116.1

021B W 103.5 120

021C M 100.1 120 VENT EXHAUST

021D CLOSET 104.60 4385.0 3705.0

53.6 2673 5780 6595.6 0.41 0.88 1237 4385.0 0

Ratio 3.29

Pressuriza tion Adj

(x1.1) 4075.5

DOAS-2

Must Provide More Makeup air on the west side of the building to meet pressurization and exhaust requirements

WEST Exhaust Total

EAST Exhaust Total

AHU-2 AIRFLOW CALCULATIONS AHU-2 VENTILATION/PRESSURIZATION CALCULATIONS

Heating

Load (MBH)

Adj Air Flow

(CFM)

Air Flow

(CFM)

Cooling

Sensible

(MBH)

Adj Outdoor Air

(CFM)

Uncorrected

Outdoor Air

(CFM)

Adj Space

CFM/sqft

Space

CFM/sqft

Floor Area

(sqft)

Exhaust RequirementsExhaust

Rate

(CFM/sqft)

Exhaust

(CFM)

Storage Chemical Hazardous 1.5

Restrooms 2 70

WORKSHOP 0.5

3-1

006 SHEET METAL 27.8 1286 1440 18.8 1519.4 0.85 0.95 323.5 330.0 280.0

3-2

005 TIRE SHOP 21.7 1005 1200 15.4 1128.2 0.89 1.06 253.1 260.0 230.0

3-3

004 ENGINE SHOP 23.9 1104 1240 16.9 1254.9 0.88 0.99 275.9 280 230

3-4

001 VESTIBULE 2.3 106 120 0.8 86.1 1.23 1.39 5.2 50.0 40.0

002 CORRIDOR 5.5 253 280 4.8 243.2 1.04 14.6 50.0 90.0

003 LANDING GEAR SHOP 31.8 1470 1600 22.5 1728.1 0.85 0.93 361.1 360.0 360.0

ZONE TOTAL 39.6 1829 2000 28.1 2057.4 460.0

TOTALS 5224 5880 5959.9 0.88 0.99

1233.4 1330.0 1230.0

AHU-3 AIRFLOW CALCULATIONS AHU-3 VENTILATION/PRESSURIZATION CALCULATIONS

Exhaust Requirements

Adj Space

CFM/sqft

Uncorrected

Outdoor Air

(CFM)

Adj Outdoor Air

(CFM)

Transfer Air Rate

(CFM/sqft)

Space

CFM/sqft

Cooling

Sensible

(MBH)

Air Flow

(CFM)

Adj Air Flow

(CFM)

Heating

Load (MBH)

Zone Name (VAV Serving Zone) /

Space Name cfm/sqft cfm/unit

Storage Chemical Hazardous 1.5

4-01 Restrooms 2 70

218J CONF 16.5 763 770 11.3 234 3.27 3.30 89 100 0 0 Printer/Copy 0.5

4-02

218I CONF 16.1 745 760 5.6 417 1.79 1.82 100 100 0 0 Break Rooms 0.3

4-03 Janitor 1

218E OFFICE 3.6 168 170 4.3 139 1.21 1.22 13.4 20 0 0

218F OFFICE 3.3 154 160 1.2 138 1.12 1.16 13.3 20 0 0 Maintenance Areas 0.5

218G OFFICE 3.7 173 180 4.5 142 1.22 1.26 13.5 20 0 0

ZONE TOTAL 510 60 0

4-04

218A OFFICE 3.4 155 160 1.3 139 1.12 1.15 13.3 20 0 0

218B OFFICE 3.4 155 160 1.3 139 1.12 1.15 13.3 20 0 0

218C OFFICE 3.4 155 160 1.3 139 1.12 1.16 13.3 20 0 0

218D OFFICE 3.3 154 160 1.3 137 1.12 1.17 13.2 20 0 0

ZONE TOTAL 640 80 0

4-05

218 AMXS (1) 31.4 1451 1460 19.4 2083 0.70 0.70 296.7 300 0 0

4-06

218 AMXS (2) 31.4 1451 1460 19.4 2083 0.70 0.70 278.6 300 0 0

218H COPY 7.7 358 360 1.3 132 2.71 2.73 12.9 0 0.5 70

ZONE TOTAL 1820 300 70

4-07

214C COMMAND SUITE 8.5 391 400 5.4 326 1.20 1.23 54.6 60 0 0

4-08

214 RECEPTION 3.2 148 150 3.7 211 0.70 0.71 17.7 20 0 0

214A DEPUTY 3.1 143 150 2.5 118 1.21 1.27 12.1 20 0 0

214B DEPUTY 3.4 157 160 5.4 122 1.29 1.32 12.3 20 0 0

ZONE TOTAL 460 60 0

4-09

215 BRK 24.6 1136 1140 27.2 746 1.52 1.53 252.1 260 0.3 230

4-10

201 CORRIDOR 7.4 342 350 11.4 662 0.52 0.53 39.7 80 0 0

211 JAN 1.1 53 60 1.2 41 1.30 1.47 2.4 0 1 50

212 WOMENS 4.5 207 210 4.8 250 0.83 0.84 0 0 2 500

213 STOR 1.2 56 60 1.2 43 1.31 1.41 2.6 0 0

216 M 1.5 71 80 1.6 71 1.00 1.13 0 0 2 150

217 W 1.6 72 80 1.7 72 1.00 1.11 0 0 2 150

ZONE TOTAL 840 80 850

4-11

205 STOR 3.6 165 170 1.9 168 0.98 0 0 0 0

210 MENS 5.1 234 240 6 335 0.70 0.72 0 0 2 670

219 CORRIDOR 5.9 272 280 4.7 424 0.64 0.66 25.4 50 0 0

ZONE TOTAL 690 50 670

4-12

209 SCHED OFF 27.8 1341 1360 36.2 1369 0.98 0.99 189.1 200 0 0

4-13

209A OFFICE 2.5 113 120 1.5 131 0.86 0.92 12.8 25 0 0

209B OFFICE 3.7 172 180 4.8 142 1.21 1.27 13.5 25 0 0

ZONE TOTAL 300 50 0

4-14

206 CTR TRNG 17.4 803 810 11.8 845 0.95 0.96 116.7 130 0 0

4-15

203 SFTWR 7 322 330 2.5 408 0.79 0.81 39.5 50 0 0

4-16

202K COLLAB 10.5 487 490 10.3 394 1.24 1.24 54.4 60 0 0

4-17

202B OFFICE 3.6 167 170 4.3 137 1.22 1.24 13.2 20 0 0

202C OFFICE 3.6 167 170 4.3 137 1.22 1.24 13.2 20 0 0

202D OFFICE 3.6 166 170 4.2 135 1.23 1.26 13.1 20 0 0

ZONE TOTAL 510 60 0

4-18

202E OFFICE 3.7 169 170 4.4 140 1.20 1.21 13.4 25 0 0

202F OFFICE 5 232 240 8.2 151 1.53 1.59 14.1 25 0 0

ZONE TOTAL 410 Total: 50 0

4-19

202H OFFICE 3.8 183 180 4.5 139 1.32 1.30 13.3 20 0 0

202I OFFICE 3.7 180 180 4.3 135 1.33 1.33 13.1 20 0 0

202J OFFICE 5.3 257 260 8 143 1.80 1.82 13.6 20 0 0

ZONE TOTAL 620 60 0

4-20

202 OPEN OFFICE (1) 19.3 890 890 11.6 1079 0.82 0.82 144.6 170 0 0

202G COPY/FILE 7.5 346 350 1.8 124 2.80 2.83 12.4 0 0.5 70

ZONE TOTAL 1240 170 70

4-21

202 OPEN OFFICE (2) 19.3 890 890 11.6 1079 0.82 0.82 153.4 160 0 0

VENT EX

Totals 16214 16450 15963 1.02 1.03 2132.8 2440 3551

1.83

Pressuriz ation Adj

(x1.1) 3906

DOAS-3

AHU-4 AIRFLOW CALCULATIONS AHU-4 VENTILATION/PRESSURIZATION CALCULATIONS

Exhaust Requirements

Exhaust

Rate

(CFM/sqft

Adj Space

CFM/sqft

Uncorrected

Outdoor Air

(CFM)

Adj Outdoor Air

(CFM)

Exhaust

(CFM)

Space

CFM/sqft

Cooling

Sensible

(MBH)

Air Flow

(CFM)

Adj Air

Flow (CFM)

Heating

Load (MBH)

Building Hydronic Calculations

Hydronic Diagrams

CThompson Text Box Chilled Water Calculations

Diagram

B

CThompson Text Box A

CThompson Line

CThompson Line

CThompson Line

CThompson Line

CThompson Line

Line

B

CThompson Text Box A

CThompson Line

CThompson Line

CThompson Line

CThompson Line

CThompson Line

Heated Water Calculations

Diagram

A

CThompson Text Box B

CThompson Text Box C

CThompson Text Box D

CThompson Text Box E

CThompson Text Box F

CThompson Text Box G

CThompson Text Box H

CThompson Text Box I

CThompson Text Box J

CThompson Text Box K

CThompson Text Box L

CThompson Text Box M

CThompson Text Box N

CThompson Text Box O

CThompson Text Box P

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File details come from the government source that posted it. Updated .