Ranco airplane manifold pressure gauge * Model/Part Number: AN 5770-2 (also desi Click here to purchase or contact the seller of this item on eBay
Current Price: 49.00 USD

Manifold pressure Gauge worked when taking out of plane

This is a vintage dual manifold pressure gauge(AN 5770-2) manufactured by Ranco Inc.. Used in aircraft with multiple engines, this instrument measures the absolute pressure of the fuel/air mixture within the engine intake manifolds in inches of mercury (Hg). 

Key Specifications

• Model/Part Number: AN 5770-2 (also designated as AN 5770-2-12 or P/N 31854-12).
• Configuration: Dual-port indicator designed for twin-engine aircraft, providing independent readings for both engines.
• Range: Typically measures from 10 to 75 inches of mercury (in Hg).
• Historical Context: These gauges were common in WWII-era military aircraft, including bombers and transports like the B-25, B-26, C-47 (DC-3), and C-54.