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McDonnell XF-88 Voodoo


Escort Fighter / Penetration Fighter Prototype


United States | 1948



"Though a failed design in itself, the McDonnell XF-88 Voodoo did go on to become the successful F-101 Voodoo aircraft of the Cold War years."



Authored By: Staff Writer | Last Edited: 11/18/2017 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
World War 2 (1939-1945) showcased to American warplanners the importance of "escort fighters" for their bomber forces when traversing over enemy terrain. The value added by such platforms as the North American P-51 "Mustang", the Republic P-47 "Thunderbolt", and the Lockheed P-38 "Lightning" was as much a deciding factor for the Allies in the bombing campaign against Germany and Japan as wee the bombs dropped by Consolidated B-24 "Liberator" and Boeing B-17 "Flying Fortress" bombers. As technology forced the hand of aeronautics into the jet age, the idea of escorting long-range bombers followed along. The McDonnell XF-88 "Voodoo" was prototyped in an effort to find a suitable counterpart to the growing list of long-range penetration bombers joining the inventory of the United States air service.

The XF-88 was classified as a "penetration fighter" and designed around a 1946 USAAF (United States Army Air Forces) requirement envisioning an aircraft with exceptional operational ranges. The resulting McDonnell design was granted two working prototypes in the form of the "XP-88" (the Air Force designation model would effectively change that to "XF-88" by 1948). The XF-88 featured swept-back wings fitted to streamlined fuselage with triangular intakes mounted at the wing roots. The jet exhaust would pass under the tail unit which featured a conventional arrangement - a single vertical fin being fitted with mid-mounted horizontal planes. An early model form sported a "Vee" tail but this approach was dropped when wind tunnel testing showed instability issues. The aircraft was crewed by one with the cockpit seated well-forward of midships, aft of a nose cone assembly. Proposed armament was 6 x M39 20mm cannons giving the fighter a considerable punch.

Only two flyable prototypes were ever produced for the program as it lost steam when the Air Force decided to go a different route, eventually dropping the idea of a penetration fighter. As such, the program was cancelled even after a North American design was initially selected to fulfill the requirement, the winner then itself dropped in favor of the McDonnell design. Completed Voodoo models were in the form of the XF-88, XF-88A, and the XF-88B.

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XF-88 marked the initial prototype fitted with a Westinghouse J34-13 turbojet of 3,000 lb thrust and lacking armament. XF-88A then followed and installed a Westinghouse J-34-22 turbojet which featured an early version of afterburn. Armament for this airframe came later. XF-88B was given an Allison XT38 turboprop engine in its nose outputting 2,500 horsepower - this in addition to its turbojet engine installation - making it a "compound fighter" design relying on two propulsion methods. First flight of this form came on April 14th, 1953.

Though the direct XF-88 Voodoo design came to naught, the aircraft and its name were resurrected a time later when it became the McDonnell F-101 "Voodoo" venture. This aircraft, introduced in 1957 and seeing 807 examples produced, retained much of the form of the XF-88 including its sleek design, single vertical tailfin, and triangular air intakes and went on to see considerable combat service in the Vietnam War (1955-1975). The F-101 was a dimensionally larger, missile-armed aircraft modified for a new requirement.

The completed XF-88 prototypes carried serial numbers 46-525 and 46-526.

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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 McDonnell XF-88A Voodoo Escort Fighter / Penetration Fighter Prototype.
2 x Westinghouse J34-WE-22 turbojet engines developing 3,600 lb of thrust each with afterburner (3,000 lb dry).
Propulsion
705 mph
1,135 kph | 613 kts
Max Speed
39,403 ft
12,010 m | 7 miles
Service Ceiling
1,727 miles
2,780 km | 1,501 nm
Operational Range
8,000 ft/min
2,438 m/min
Rate-of-Climb
City-to-City Ranges
Operational range when compared to distances between major cities (in KM).
NYC
 
  LON
LON
 
  PAR
PAR
 
  BER
BER
 
  MOS
MOS
 
  TOK
TOK
 
  SYD
SYD
 
  LAX
LAX
 
  NYC
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the McDonnell XF-88A Voodoo Escort Fighter / Penetration Fighter Prototype.
1
(MANNED)
Crew
54.1 ft
16.50 m
O/A Length
39.7 ft
(12.10 m)
O/A Width
17.2 ft
(5.25 m)
O/A Height
12,147 lb
(5,510 kg)
Empty Weight
18,519 lb
(8,400 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 McDonnell XF-88 Voodoo Escort Fighter / Penetration Fighter Prototype .
STANDARD, FIXED:
6 x 20mm M39 cannons
Variants
Notable series variants as part of the McDonnell XF-88 Voodoo family line.
XF-88 - Initial prototype; fitted with Westinghouse J34-13 turbojet engines; sans cannon armament.
XF-88A - Second prototype completed; fitted with Westinghouse J-34-22 turbojet engines featuring early-form afterburners; armament to be added later.
XF-88B - Initial prototype modified to accept the Allison XT38 turboprop engine in nose assembly; appearing in April 1953.
F-101 "Voodoo" - Production Voodoo represents a larger design based on the initial XF-88 model prototypes - see F-101 Voodoo entry for model specific details.
Operators
Global customers who have evaluated and/or operated the McDonnell XF-88 Voodoo. Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 2 Units

Contractor(s): McDonnell Aircraft Corporation - USA
National flag of the United States

[ United States ]
Relative Max Speed
Hi: 750mph
Lo: 375mph
Aircraft Max Listed Speed (705mph).

Graph Average of 563 MPH.
Era Crossover
Pie graph section
Showcasing Aircraft Era Crossover (if any)
Max Alt Visualization
Small airplane graphic
Production Comparison
2
36183
44000
Entry compared against Ilyushin IL-2 (military) and Cessna 172 (civilian) total production.
MACH Regime (Sonic)
Sub
Trans
Super
Hyper
HiHyper
ReEntry
RANGES (MPH) Subsonic: <614mph | Transonic: 614-921 | Supersonic: 921-3836 | Hypersonic: 3836-7673 | Hi-Hypersonic: 7673-19180 | Reentry: >19030
Aviation Timeline
EarlyYrs
WWI
Interwar
WWII
ColdWar
Postwar
Modern
Future
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Image of the McDonnell XF-88 Voodoo
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Image of the McDonnell XF-88 Voodoo
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Image of the McDonnell XF-88 Voodoo

Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to airborne requirements.
AIR-TO-AIR COMBAT
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.
Going Further...
The McDonnell XF-88 Voodoo Escort Fighter / Penetration Fighter Prototype appears in the following collections:
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