Boeing Model 386

Carrierborne Medium-Altitude Fighter Aircraft Proposal

United States | 1943

"The Boeing Model 386 was another World War 2-era attempt by the company to sell the USN on a fighter centered on the Wasp Major radial engine."

Authored By: Staff Writer | Last Edited: 05/05/2020 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.

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The United States Navy (USN) went into World War 2 (1939-1945) with the Brewster "Buffalo" and Grumman "Wildcat" as its primary frontline fighters. However, the war quickly showcased the need for more modern fighting platforms and this gave rise to a slew of design studies put forth by the major and minor defense players of the day. While the Grumman "Hellcat" and Vought "Corsair" types ended as the service's workhorses (and ace-makers), there were other offerings which might have very well formed the new face of U.S. naval aviation.

Boeing drew up plans for what became the "Model 376" of 1943 (detailed elsewhere on this site). This single-seat, single-engine system was to be powered by the (then experimental) Pratt & Whitney R-4360 "Wasp Major" 28-cylinder air-cooled radial piston engine and the body of the aircraft was to have been rather slim and elegant. With an estimated speed of over 400 mph, the cannon-armed fighter (4 x 20mm) was to have utilized a low-mounted monoplane wing structure and tail-dragger undercarriage arrangement.

From this, the company developed an offshoot design along the same lines in what became the "Model 386". While the Model 376 was marketed for low-to-medium altitude work up to around 35,000 feet, the Model 386 was intended for sorties as high as 46,000 feet. Beyond the same powerful (and experimental) radial engine fit, the new fighter would sport contra-rotating propeller blades at the nose (2 x Three-bladed units spinning in opposite directions) - unlike the Model 376's single four-bladed unit.

All other facets of the fighter remained including its low-mounted monoplane wing members, single rudder fin at rear, and tail-dragger undercarriage. Armament was to the same as well: 4 x 20mm automatic cannons buried in the wings, two guns to a wing, and positioned outside of the spinning propeller blades and outboard of the main landing gear legs. The usual carrier-friendly qualities - folding wings (outboard of the twin wing cannons), arrestor hook - were in the plans as well. Like the Model 376 before it, the Model 386 never gained traction and fell to history.

Based on provided plans, the Boeing fighter was to have featured a running length of 41.11 feet, a wingspan of 55.3 feet, and a weight near 15,500lb. The PW R-4360 Wasp Major engine was to supply around 3,000 horsepower to the contra-rotating propeller arrangement at the nose. Estimated speed was 434 miles-per-hour (at just over 20,000 feet) with a service ceiling of 46,000 feet, and range out to 1,000 miles.

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Power & Performance
Those special qualities that separate one aircraft design from another. Performance specifications presented assume optimal operating conditions for the Boeing Model 386 Carrierborne Medium-Altitude Fighter Aircraft Proposal.

1 x Pratt & Whitney R-4360 "Wasp Major" 28-cylinder, 4-row, air-cooled radial piston engine developing 3,000 horsepower and driving 2 x Three-bladed propeller units at the nose in contra-rotating fashion.
Propulsion

435 mph
700 kph | 378 kts
Max Speed

46,014 ft
14,025 m | 9 miles
Service Ceiling

1,000 miles
1,610 km | 869 nm
Operational Range

2,100 ft/min
640 m/min
Rate-of-Climb

City-to-City Ranges
Operational range when compared to distances between major cities (in KM).

NYC

LON

PAR

BER

MOS

TOK

SYD

LAX

NYC

Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the Boeing Model 386 Carrierborne Medium-Altitude Fighter Aircraft Proposal.

1
(MANNED)
Crew

41.9 ft
12.78 m
O/A Length

55.3 ft
(16.85 m)
O/A Width

16.0 ft
(4.88 m)
O/A Height

12,125 lb
(5,500 kg)
Empty Weight

16,810 lb
(7,625 kg)
MTOW

Design Balance
The three qualities reflected below are altitude, speed, and range. The more full the box, the more balanced the design.

RANGE

ALT

SPEED

Armament
Available supported armament and special-mission equipment featured in the design of the Boeing Model 386 Carrierborne Medium-Altitude Fighter Aircraft Proposal .

PROPOSED:
4 x 20mm Automatic cannons in wings (two to a wing).

Variants
Notable series variants as part of the Boeing Model 386 family line.

Model 386 - Base Project Designation.

Operators
Global customers who have evaluated and/or operated the Boeing Model 386. Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 0 Units
Contractor(s): Boeing Company - USA

[ United States (abandoned) ]

Relative Max Speed

Hi: 500mph

Lo: 250mph

Aircraft Max Listed Speed (435mph).

Graph Average of 375 MPH.

Era Crossover

Showcasing Aircraft Era Crossover (if any)

Max Alt Visualization

MACH Regime (Sonic)

Sub

Trans

Super

Hyper

HiHyper

ReEntry

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Aviation Timeline

EarlyYrs

WWI

Interwar

WWII

ColdWar

Postwar

Modern

Future

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Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to airborne requirements.

AIR-TO-AIR COMBAT

MARITIME / NAVY

X-PLANE

Recognition
Some designs stand the test of time while others are doomed to never advance beyond the drawing board; let history be their judge.

Military lapel ribbon for the World War 2

Going Further...
The Boeing Model 386 Carrierborne Medium-Altitude Fighter Aircraft Proposal appears in the following collections:

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