2 × Wright R-1300-4,-4A Cyclone 7 radials , 800 hp (600 kW) each
Rate of Climb (ft/min)
Not Stated
Service Ceiling (ft)
14000 ft
Military/Afterburner Speed (kt)
70 kn
Cruise Speed (kt)
50 kn
Supercruise
No
Ferry Range (nm)
Not Stated (greater than M-Class)
Endurance (min)
over 200 hours
Takeoff / Landing Distance (m)
VTOL
Fuel Capacity (kg)
Not Stated (greater than M-Class)
Sensors
ZPG-2W
AN/APS-20 radar with its antenna installed beneath the gondola.
AN/APS-69 height-finding radar antenna was mounted on top of the envelope.
ZPG-3W Vigilance
AN/APS-70 Radar with its antenna installed ab ovethe gondola in the envelope.
AN/APS-69 height-finding radar antenna was mounted on top of the envelope.
Patrol Models
AN/APS-20 radar with its antenna installed beneath the gondola.
Others as per K & M-Class
Mounts
Patrol Models Only
1x M2 12.7mm HMG
Loadout Options
Ferry
SZ-1 Aircraft as following K and M Class
ASW
Maritime Patrol
SAR
Minespotting
Minelaying
Cargo
EZ-1 Series
-AEW
Comms/Datalinks
UHF/VHF
Aircraft Codes
HIFR Capable, Night Navigation (Ferry, Air-to-Air, Air-to-Surface Missiles), Night Navigation/Attack (Incl. Bomb, Rocket Delivery), Bombsight - Basic
Comments
Follow on to M-Class with 50% increase in volume.
Initial Designation - ZPN-1, to ZPG-1 in 1954, and then to SZ-1A in 1962, 1x Unit
Initial Desination - ZP2N, re-designated in 1954 as the ZPG-2, 12x units total, 3x Units converted to AEW, 1x used as testbed for ZPG-3W. to SZ-1B in 1962
Initial Designation - ZP2N-1W (but at delivery were designated ZPG-2W). Their designation was changed to EZ-1B in 1962. 5x units total, 3x converted from ZPG-2.
Initial Designation - ZPG-3W Vigilance, to EZ-1C 1962, 4x United Total
PygmalionOfCyprus
commented
1 year ago
DB Selector
CWDB
Baseline
Aerostat
Hypothetical
No
Name
N Class Airship (See Designations Below)
Country
United States
Service
Navy
In Commission
1952-1962
Number in Service
18x total across all variants
Length (m)
104.57 m
Wingspan (m)
23.17 m
Height (m)
32.62 m
Empty Weight (kg)
Not Stated (greater than M-Class)
Maximum Takeoff Weight (MTOW) (kg)
Not Stated (greater than M-Class)
Payload Weight (kg)
Not Stated (greater than M-Class)
Crew
21-15x
Propulsion
2 × Wright R-1300-4,-4A Cyclone 7 radials , 800 hp (600 kW) each
Rate of Climb (ft/min)
Not Stated
Service Ceiling (ft)
14000 ft
Military/Afterburner Speed (kt)
70 kn
Cruise Speed (kt)
50 kn
Supercruise
No
Ferry Range (nm)
Not Stated (greater than M-Class)
Endurance (min)
over 200 hours
Takeoff / Landing Distance (m)
VTOL
Fuel Capacity (kg)
Not Stated (greater than M-Class)
Sensors
ZPG-2W AN/APS-20 radar with its antenna installed beneath the gondola. AN/APS-69 height-finding radar antenna was mounted on top of the envelope.
ZPG-3W Vigilance AN/APS-70 Radar with its antenna installed ab ovethe gondola in the envelope. AN/APS-69 height-finding radar antenna was mounted on top of the envelope.
Patrol Models AN/APS-20 radar with its antenna installed beneath the gondola. Others as per K & M-Class
Mounts
Patrol Models Only 1x M2 12.7mm HMG
Loadout Options
SZ-1 Aircraft as following K and M Class ASW Maritime Patrol SAR Minespotting Minelaying Cargo
EZ-1 Series -AEW
Comms/Datalinks
UHF/VHF
Aircraft Codes
HIFR Capable, Night Navigation (Ferry, Air-to-Air, Air-to-Surface Missiles), Night Navigation/Attack (Incl. Bomb, Rocket Delivery), Bombsight - Basic
Comments
Follow on to M-Class with 50% increase in volume.
Initial Designation - ZPN-1, to ZPG-1 in 1954, and then to SZ-1A in 1962, 1x Unit
Initial Desination - ZP2N, re-designated in 1954 as the ZPG-2, 12x units total, 3x Units converted to AEW, 1x used as testbed for ZPG-3W. to SZ-1B in 1962
Initial Designation - ZP2N-1W (but at delivery were designated ZPG-2W). Their designation was changed to EZ-1B in 1962. 5x units total, 3x converted from ZPG-2.
Initial Designation - ZPG-3W Vigilance, to EZ-1C 1962, 4x United Total
Sources
https://en.wikipedia.org/wiki/N-class_blimp https://lynceans.org/wp-content/uploads/2021/08/Goodyear_N-class-blimps-converted-compressed.pdf https://www.patriotspoint.org/news-and-events/first-practical-sonobuoy-1942/#:~:text=A%20K%2D5%20blimp%20used,NC%2C%20in%20World%20War%20II. https://www.globalsecurity.org/wmd/systems/zpg-2.htm https://www.defensemedianetwork.com/stories/a-very-short-history-of-postwar-military-airships/ http://www.blimpinfo.com/wp-content/uploads/2012/01/Images-of-ZPG-3W-Blimps.pdf https://www.thisdayinaviation.com/tag/goodyear-zpg-2/ https://www.history.navy.mil/content/dam/nhhc/research/histories/naval-aviation/navys-lighter-than-air-experience-monograph/pdfs/lta-10.pdf https://www.naval-airships.org/post-war-cold-war https://airshiphistory.com/wp/1-page-postwar-era/
ZPG-3W