HANGAR 77 LLC· ICAO24 a510d0· last seen 2d ago

N4252 is a Boeing B-17G, a four-engine piston aircraft operated by HANGAR 77 LLC. SkyMeter has tracked 70 flights totalling 35 hours of airtime via ADS-B. The most frequent segment is 1K1 to 1K1. Service window in our records spans 400 days. The Boeing B-17G has a maximum takeoff weight of 65,500 lb, medium wake category.

About the Boeing B-17G

The Boeing B-17 Flying Fortress is the most iconic American heavy bomber of World War II, famous for its ruggedness, defensive firepower, and ability to absorb catastrophic battle damage and still bring crews home. First flown in 1935 and entering service in 1938, the B-17 became the backbone of the U.S. Eighth Air Force's daylight strategic bombing campaign over Europe, with the G-model representing the definitive production variant featuring a chin turret and improved defensive armament totaling thirteen .50-caliber machine guns. More than 12,700 B-17s were built, with the type flying some of the war's most famous and costly missions including the raids on Schweinfurt and Regensburg.

The Flying Fortress earned its legendary status through a combination of structural strength, redundant systems, and operational ceiling that allowed formation bombing from altitudes above 25,000 feet, beyond the effective reach of most flak and fighters early in the war. Its four Wright R-1820 Cyclone radial engines, each producing 1,200 horsepower, gave it a maximum speed of 287 mph and a combat radius exceeding 1,000 miles with a typical 4,000-pound bomb load. The aircraft's ability to remain airborne on two engines and limp home with massive structural damage became the stuff of legend, with countless accounts of B-17s returning to base with engines out, tail sections nearly severed, and gaping holes in wings and fuselage.

Today, fewer than a dozen B-17s remain airworthy worldwide, maintained by warbird organizations and museums as flying memorials to the 47,000 aircrew members killed flying them in combat. These survivors are meticulously restored to G-model configuration and operate under strict FAA limitations, typically powered by original or overhauled R-1820 engines and flown at weights well below the wartime maximum of 65,500 pounds. The type's stall characteristics remain demanding (power-on stalls can break sharply, and asymmetric thrust on two engines requires immediate corrective action), making current operators among the most experienced warbird pilots in the world.

SkyMeter has tracked flights across airframes and operators, with the largest observed operator.

FLIGHTS
70
all time
FLOWN HOURS
35
tracked time
📍
AIRPORTS VISITED
17
unique
📡
CALLSIGNS
1
18 routes
📅
SERVICE PERIOD
7/9/2025 → 8/14/2026
first → last
INCIDENT RATE
0.0%
0 flagged

Top routes

By flight count

10
1K1 1K1
10
1
1K1 K3AU
1
SN05 1K1
1
1
1K1 KEQA
1
1
1K1 K47K
1
KAAO 1K1
1
1

Flight numbers

Most-flown by this airframe

1

Aircraft specifications

Boeing B-17G

Engines
Quad Piston
Vref (approach)
90 kt
MTOW
65,500 lb
Wake category
M

Recent flights

Newest 35 operations of N4252

35
8/14/2026
23m
No alerts
8/8/2026
23m
No alerts
8/8/2026
31m
No alerts
8/6/2026
27m
No alerts
6/25/2026
29m
No alerts
6/22/2026
7m
No alerts
6/21/2026
35m
No alerts
6/21/2026
36m
No alerts
6/20/2026
6m
No alerts
6/20/2026
9m
No alerts
6/13/2026
6m
No alerts
6/13/2026
1h 9m
No alerts
6/7/2026
55m
No alerts
5/25/2026
13m
No alerts
5/25/2026
22m
No alerts
5/24/2026
40m
No alerts
5/10/2026
9m
No alerts
5/9/2026
40m
No alerts
4/2/2026
13m
No alerts
3/21/2026
22m
No alerts
3/21/2026
20m
No alerts
3/21/2026
55m
No alerts
3/20/2026
17m
No alerts
3/19/2026
7m
No alerts
3/19/2026
42m
No alerts
10/9/2025
1h 3m
No alerts
10/9/2025
16m
No alerts
10/8/2025
1h 21m
No alerts
10/8/2025
15m
No alerts
10/8/2025
28m
No alerts
10/8/2025
32m
No alerts
10/7/2025
54m
No alerts
7/23/2025
43m
No alerts
7/9/2025
40m
No alerts
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