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Curtiss VF-11B


Carrierborne Fleet Defense Fighter Proposal


United States | 1947



"The Curtiss VF-11B rounded out a trio of submissions to the United States Navy to cover a fleet defense fighter requirement down the road."



Authored By: Staff Writer | Last Edited: 06/06/2022 | Content ©www.MilitaryFactory.com | The following text is exclusive to this site; No A.I. was used in the generation of this content.
The Curtiss VF-11B was the third, and final, design proposal directed at a potential Untied States Navy (USN) fleet defense fighter requirement in the immediate post-World War 2 period. The first two offerings (detailed elsewhere on this site) were to rely on a tailed delta-wing planform with the original's (VF-11) twin-engine layout given up in favor of the subsequent (VB-11A) proposal's single Rolls-Royce Nene turbojet. By the time of the VF-11B, the aircraft was largely reworked to include swept-back wing mainplanes and a V-style tail arrangement with outward-canted fins.

The consistent qualities between the three designs were: turbojet powered propulsion scheme (with rocket-boosting for enhanced acceleration), tricycle undercarriage, expected carrier equipment / features (arrestor hook, folding wings), all-rocket armament (fired from the lower portside of the nose), and seating for a single crewman under a three-piece canopy.

The VB-11B was certainly the most conventional of the trio mainly due to the mainplanes, these being low-mounted along the sides of the fuselage and swept back at both their leading and trailing edges. The V-style tail unit was a considerable departure but implemented due to collected data championing weight-savings. The British Rolls-Royce "Nene" turbojet was carried over from the A-model proposal and this was to be aspirated by side-mounted intakes as in the first two designs - the expected thrust output rated at around 8,400lb and offering an afterburner capability. With the sloping nose assembly, the pilot was afforded excellent forward vision out-of-the-cockpit and the lowered dorsal line helped to achieve some rearward vision.

As drawn up, this Curtiss naval interceptor was to have a wingspan of 36 feet and a length of 36.2 feet. Maximum Take-Off Weight (MTOW) was to reach 12,000lb and maximum speeds were in the vicinity of 650 miles-per-hour. Rate-of-climb with rocket-boosting was to exceed 20,000 feet-per-minute.

Like the other submissions of the VF-11 series, the VF-11B did not advance beyond this paper stage.

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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 Curtiss VF-11B Carrierborne Fleet Defense Fighter Proposal.
1 x Rolls-Royce Nene afterburning turbojet engine developing 8,400lb of thrust.
Propulsion
646 mph
1,040 kph | 562 kts
Max Speed
485 mph
780 kph | 421 kts
Cruise Speed
50,033 ft
15,250 m | 9 miles
Service Ceiling
20,500 ft/min
6,248 m/min
Rate-of-Climb
Structure
The nose-to-tail, wingtip-to-wingtip physical qualities of the Curtiss VF-11B Carrierborne Fleet Defense Fighter Proposal.
1
(MANNED)
Crew
36.3 ft
11.05 m
O/A Length
35.9 ft
(10.95 m)
O/A Width
10,417 lb
(4,725 kg)
Empty Weight
11,905 lb
(5,400 kg)
MTOW
Armament
Available supported armament and special-mission equipment featured in the design of the Curtiss VF-11B Carrierborne Fleet Defense Fighter Proposal .
PROPOSED:
6 x 5" (127mm) High-Explosive, fin-stabilized aerial rockets fired from lower port side fuselage.
Variants
Notable series variants as part of the Curtiss VF-11B family line.
VF-11 - Base Fighter Proposal of 1946.
VF-11A - Revised proposal with squared-off vertical tail fin and single Rolls-Royce turbojet engine.
VF-11B - Revised proposal showcasing more traditional fighter design mainplane wing arrangement; outward-canted V-style tail unit.
Operators
Global customers who have evaluated and/or operated the Curtiss VF-11B. Nations are displayed by flag, each linked to their respective national aircraft listing.

Total Production: 0 Units

Contractor(s): Curtiss Aeroplane Company - USA
National flag of the United States

[ United States (cancelled) ]
Relative Max Speed
Hi: 750mph
Lo: 375mph
Aircraft Max Listed Speed (646mph).

Graph Average of 563 MPH.
Era Crossover
Pie graph section
Showcasing Aircraft Era Crossover (if any)
Max Alt Visualization
Small airplane graphic
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
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Image of the Curtiss VF-11B
Image copyright www.MilitaryFactory.com; No Reproduction Permitted.

Mission Roles
Some designs are single-minded in their approach while others offer a more versatile solution to airborne requirements.
AIR-TO-AIR COMBAT
INTERCEPTION
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.
Going Further...
The Curtiss VF-11B Carrierborne Fleet Defense Fighter Proposal appears in the following collections:
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