Estimados VGM y foristas
Especialmente VGM THUNDER
Respecto del tema de los tanques/cilindros/botellas, de O2 del A4 Skyhawk:
This photo shows a PPCP (Pilot's Personal Cargo Pod) being studied for a Weather Survey Pod.
The A4 in the 7X10 foot transonic wind tunnel at the David W Taylor Model Basin in Carderock, MD circa 1961-64. Above picture, I believe, is with a Walleye. Donald Henry
Variant
A4D-1 A4D-2 A4D-2N A-4L
A4D-5 A-4F
A-4M Drwg1 TA-4F TA-4J
A-4A A-4B A-4C A-4E
A-4M Drwg2
Length 39'4" 39'4" 40'1" 40'1" 41'3" 41'3" 41'3" 43'7" 43'7"
Wing Span 27'6" 27'6" 27'6" 27'6" 27'6" 27'6" 27'6" 27'6" 27'6"
Main Lndg Gr Width 7'9.5" 7'9.5" 7'9.5" 7'9.5" 7'9.5" 7'9.5" 7'9.5" 7'9.5" 7'9.5"
Empty weight (lbs) 8,4 9,146 9,728 9,728 9,853 10,448 10,465 10,602
Engine Curtiss-Wright J65-W-16A Curtiss-Wright J65-W-16A Curtiss-Wright J65-W-16A Curtiss-Wright J65-W-20 Pratt Whitney J52-P6A Pratt Whitney J52-P8A/8B Pratt Whitney J52-P408 Pratt Whitney J52-P8A/8B Pratt Whitney J52-P6A
Static Thrust (lbs) 7,7 7,7 7,7 8,4 8,5 9,3 11,2 9,3 8,5
Engine Upgrade (some) None J65-W-20 J65-W-20 J52-P-8A, 8B J52-P-8A, 8B J52-P-408 None J52-P-8A, 8B None
Intakes Flush Flush Flush Separated Separated Separated Separated Separated Separated
Max level mph 664 661 649 649 673 673 673 675
Elevator Boosted Powered Powered Powered Powered Powered Powered Powered Powered
Extendable Control Stick Yes Yes No No No No No No No
Nose Wheel Steering No No No No No Yes Yes Yes Yes
Drag Chute No No No No No No Yes No No
Internal Fuel (gal) 810 810 810 810 810 810 670 670
Wng Fuel Sensors 2 2 6 6 6 6 6 6 6
Refueling Probe No Yes Yes Yes Yes yes yes Yes Yes
Stabilizer Trim (degrees) 12up,1dwn 11up,1dwn 11up,1dwn 11up,1dwn 12.25up,1dwn 12.25up,1dwn 12.25up,1dwn 12.25up,1dwn 11up,1dwn
Spoilers No No No Yes No,(AFC442) Yes Yes Yes Yes
Ext. Stations 3 3 3 5 5 5 5 5 3
JATO No No Some Provisions Only Partial Provisions Some Provisions Only Partial Provisions Complete Provisions Partial Provisions Some Provisions Only
Oxygen 5 Litre 5 Litre 10 Litre 10 Litre 10 Litre 10 Litre 10 Litre 10 Litre 10 Litre
Variant A-4A A-4B A-4C A-4L A-4E A-4F A-4M TA-4F TA-4J
Upper Avionics Bay No No No Yes Yes Yes Yes No No
AFCS No No Yes Yes Yes Yes Yes Yes Yes
Radar No No
AN/APG-53A AN/APG-53A AN/APG-53A AN/APG-53A AN/APG-53A, AN/APG-53A
Provisions Only
Video IP-936/AXQ No No No Some Provisions Only Provisions Only Provisions Only No Provisions Only
Comm Gear RT-355/ RT-355/ RT-355/ RT-355/ AN/ARC-51A AN/ARC-51A AN/ARC-51A AN/ARC-51A AN/ARC-51A
ASQ-17 ASQ-17 ASQ-17 ASQ-17 AN/ARR-69 AN/ARR-69 AN/ARR-69 AN/ARR-69 AN/ARR-69
(AN/ARC-27A) (AN/ARC-27A) (AN/ARC-27A) (AN/ARC-27A) AN/ARR-114 (VHF-FM)
Nav Cmptr None AN/ASN-19A AN/ASN-19A AN/ASN41 AN/ASN-19A/AN/ASN41 AN/ASN41 Provisions Only Provisions Only AN/ASN-19A
IFF RT-354/ RT-354/ RT-354/ AN/APX-64(V RT-354/ AN/APX-64(V) AN/APX-72(V) AN/APX-64(V) <="" td="">
(AN/APX-6B)ASQ-17 (AN/APX-6B)ASQ-17 (AN/APX-6B)ASQ-17 (AN/APX-6B)ASQ-17 AN/APX-72
APC AN/ASN-54 No No Yes Provisions Only Yes Yes Provisions Only Provisions Only Yes
Doppler AN/APN-153 No No No Yes Some Yes Provisions Only Provisions Only No
TACAN AN/ARN-21D No No Yes Some Yes Provisions Only Provisions Only No
RADAR Altimeter No AN APN-141 AN APN-141 AN APN-141 AN APN-141 AN APN-141 AN APN-141 AN APN-194 AN APN-141 AN APN-141
AIMS No No AFC-482 Partial Provisions AFC-482 Partial Provisions Provisions Only Partial Provisions AFC-482
ECM No No Provisions Only Some Provisions Only Provisions Only Provisions Only No Provisions Only
Variant A-4A A-4B A-4C A-4L A-4E A-4F A-4M TA-4F TA-4J
Guns 20MM 200rds 20MM 200rds 20MM 200rds 20MM 200rds 20MM 200rds 20MM 200rds 20MM 400rds 20MM 200rds 20MM 200rds
Ext. Stations 3 3 3 5 5 5 5 5 3
LABS AERO 18B AERO 18B AN/AJB-3 AN/AJB-3A AN/AJB-3A / 3A AN/AJB-3A AN/AJB-3A Provisions Only AN/AJB-3A
CP-741/A No No No Yes Yes Yes Yes Provisions Only Yes
Special Weapons Yes Yes Yes Yes Yes Yes Yes Yes Yes
Sidewinder No No Some No No Two Stations No No Some
AFC-203A AFC AFC-203A
Bullpup No Provisions Only Provisions Only Provisions Only Provisions Only Provisions Only Provisions Only No Provisions Only
GCBS No Some Provisions Only Provisions Only Provisions Only Provisions Only Provisions Only Yes No Provisions Only
Shrike No No Limited Yes Yes Yes Yes Provisions Only/td> Yes
Walleye No No No Some Provisions Only Provisions Only Provisions Only Provisions Only No Provisions Only
Arg. A-4P (B) Arg A-4C Arg. Navy A-4Q (B)
A-4AR (M) A-4KU (M) A-4G (F) A-4K (F)
A-4H (E) A-4H (F) A-4PTM (B) A-4S (B) A-4PTM (C) A-4S (C) AF-1
OA-4AR (TA-4F) TA-4G TA-4H TA-4K TA-4KU TA-4PTM AF-1A
OA-4FEA-4F
Mongoose and Super-Fox ModificationsSample parts list.
A-4A thru A-4E Integrated Electronics Pack
Mock-up of CNI installation A4DA-4L Throttle
Image of the horizontal stabalizer.
Cutaways of Rudder/Elevator and Wing Areas
If You Aint Ordnance You Aint ----!
VariantA-4AA-4BA-4CA-4LA-4EA-4FA-4MTA-4FTA-4J
Guns20MM 200rds20MM 200rds20MM 200rds20MM 200rds20MM 200rds20MM 200rds20MM 400rds20MM 200rds20MM 200rds
Ext. Stations333555553
LABSAERO 18BAERO 18BAN/AJB-3AN/AJB-3AAN/AJB-3A / 3AAN/AJB-3AAN/AJB-3AProvisions OnlyAN/AJB-3A
CP-741/ANoNoNoYesYesYesYesProvisions OnlyYes
Special WeaponsYesYesYesYesYesYesYesYesYes
SidewinderNoNoSome
AFC-203ANoNoTwo Stations
AFCNoNoSome
AFC-203A
BullpupNoProvisions OnlyProvisions OnlyProvisions OnlyProvisions OnlyProvisions OnlyProvisions OnlyNoProvisions Only
GCBSNoSome Provisions OnlyProvisions OnlyProvisions OnlyProvisions OnlyProvisions OnlyYesNoProvisions Only
ShrikeNoNoLimitedYesYesYesYesProvisions Only/td>Yes
WalleyeNoNoNoSome Provisions OnlyProvisions OnlyProvisions OnlyProvisions OnlyNoProvisions Only
Skyhawk Ordnance Page
Non-Domestic Variants
Arg. A-4P (B)Arg A-4CArg. Navy A-4Q (B)
A-4AR (M)A-4KU (M)A-4G (F)A-4K (F)
A-4H (E)A-4H (F)A-4PTM (B)A-4S (B)A-4PTM (C)A-4S (C)AF-1
OA-4AR (TA-4F)TA-4GTA-4HTA-4KTA-4KUTA-4PTMAF-1A
CHAPTER 7SEAT SURVIVAL KITLearning Objective: Upon completion of this chapter, you will be able toidentify, inspect, and maintain the RSSK-8 seat survival kit.The ejection seat survival kit is designed foruse in ejection seat equipped aircraft only.Ejection seat survival kits are designated RigidSeat Survival Kit (RSSKs) -1, -1A, -3, -6B2, -7,-8, and -9; Survival Kit Unit (SKUs) -2A, -3A,and 4A; and Semirigid Restraint and Life SupportAssembly (IULSA) -1. The RSSK-8 is discussedin this chapter.RSSK-8 SERIES SEAT SURVIVAL KITThe Rigid Seat Survival Kit-8 Series (RSSK-8series) is designed for use with DouglasESCAPAC ejection seats and functions as a seatcushion for the aircrewman as well as a containerfor an emergency oxygen system, life raft and sur-vival equipment (shown in figures 7-1 and 7-2).There are three manufacturers of these kits—Rocket Jet Engineering Corp., Scott AviationCorp., and East-West Industries. The illustrationsin this chapter show the latest configuration ofthe RSSK-8 manufactured by Scott AviationCorporation.The RSSK-8 has a bonded fiber glass body andan extruded metal lip interconnecting the upperand lower containers. The upper container houses
Nuestros FAA A4 B Skyhawk utilizaban un cilindro o esfera de Oxigeno de 5 litros de capacidad, para alimentar el sistema de asistencia respiratoria del piloto.
Nuestros FAA A4 B Skyhawk utilizaban en sus asientos ejectables un cilindro de Oxigeno dentro del contenedor de emergencia que acciona el inflado del asiento, e de forma U, probablemente de 500 cc de capacidad.
Nuestros FAA A4 B Skyhawk utilizaban en sus asientos ejectables un cilindro de Nitrogeno para la maniobra de separación del asiento y encarrilado del mismo para el vuelo desde la cabina.
No he encontrado lamentablemente nada sobre el fabricante o material de los cilindros y/o esferas presurizados que contenian los gases mencionados.
Haciendo memoria (Koinorr me va a llamar ciruja otra vez) hace muchos años, en nuestro entorno se vendian cilindros rezagos de la FAA, que admitian una carga de 100 kg/cm2 muy poco para un buceo seguro, pero muy baratos.
Estos que eran de diseño aeronautico probablemente de acero para soportar la diferencia de presión a altitudes mayores que el nivel del mar estaban revestidos por un encordado encolado alrededor del cilindro que prevenia deformaciones por la mencionada diferencia de presión.
Esta acotación me lleva a plantear que los cilindros presurizados de los A4 probablemente, tambien de acero, una vez vacios, pudiesen tener flotabilidad neutra, o ligeramente negativa, ahora si estos estaban adheridos a mangueras o por ejemplo al kit de supervivencia o el traje anti-g si pudiesen estar en cierto equilibrio de flotabilidad en la superficie. Comparativamente, y hablando de material de buceo, los viejos cilindros de acero de 12 litros de capacidad, una vez vaciado el contenido, solo alcanzaban flotabilidad neutra, nunca positiva para flotar por si mismos.
Cordialmente
bagre
Fuentes:
www.a4skyhawk.org
www.ejectionsite.com