Lockheed Little Dipper

Model 33 Little Dipper

Role	Single-seat utility monoplane
National origin	United States
Manufacturer	Lockheed
Designer	John Thorp
First flight	August 1944
Status	Scrapped
Number built	1

The Lockheed Model 33 Little Dipper was an American single-seat monoplane, designed by John Thorp and built by Lockheed at Burbank, California, only one was completed.^[1]

1 Development
2 Design
3 Specifications
4 References
5 External links

Development

The Model 33 design was originally started as a private venture two-seat light aircraft by John Thorp, a Lockheed engineer.^[1] In April 1944 the company agreed to build the aircraft as the Lockheed Model 33.^[1] Due to wartime restrictions on materials the company gained the interest of the United States Army in the aircraft as an aerial flying motorcycle under the name Air Trooper.^[1] The Army authorised Lockheed to build two prototypes of the Model 33 and the first flew in August 1944, the aircraft flew well but the Army had lost interest.^[1] Lockheed intended to market the Little Dipper as an inexpensive light aircraft but without any interest the prototype and the partly completed second aircraft was scrapped in January 1947 for tax reasons.^[1]

Design

The Model 33 was a low-wing cantilever monoplane with a fixed nosewheel landing gear.^[1] Originally with an open cockpit it was later fitted with a fully enclosed canopy.^[1] Powered by a 50 hp (37 kW) Franklin 2A4-49 engine it had STOL performance.^[1]

Specifications

Data from ^[1]

General characteristics

Crew: 1
Length: 17 ft 6 in (5.33 m)
Wingspan: 25 ft 0 in (7.62 m)
Height: 7 ft 0 in (2.13 m)
Wing area: 104 sq ft (9.7 m²)
Empty weight: 425 lb (193 kg)
Gross weight: 725 lb (329 kg)
Powerplant: 1 × Franklin 2A4-49 2-cyl. air-cooled horizontally opposed piston enginepiston engine, 50 hp (37 kW)
Propellers: 2-bladed

Performance

Maximum speed: 100 mph; 87 kn (161 km/h)
Cruising speed: 91 mph; 79 kn (146 km/h)
Range: 210 mi (182 nmi; 338 km)
Service ceiling: 16,000 ft (4,877 m)
Rate of climb: 900 ft/min (4.6 m/s)
Take off in 100ft (31m) with clearance of 50ft (15m) obstacle in 400ft (122m)

References

Notes

Bibliography

External links

Lockheed and Lockheed Martin aircraft

Manufacturer
designations

Basic Model Numbers	L-1 L-2 L-3 L-4 L-5 L-6¹ L-7 L-8 L-9 L-10 L-11 L-012 L-13¹ L-014 L-015 L-016 L-017 L-018 L-019 L-020 L-021 L-022 L-023 L-024 L-25¹ L-026 L-027 L-28¹ L-029 L-030 L-031 L-032 L-033 L-034 L-035 L-36¹ L-037 L-38¹ L-39¹ L-040 L-041 L-042 L-044 L-045 L-049 L-050 L-051 L-052 L-060 L-061 L-062 L-075 L-080 L-081 L-082 L-083 L-084 L-085 L-086 L-087 L-088 L-089 L-090 L-091 L-092 L-093 L-094 L-092 L-099 L-100 L-133 L-140 L-141 L-193 L-245 L-246 L-300 L-301 L-329 L-351 L-382 L-500 L-645

Lockheed-California Temporary Design Numbers	CL-282 CL-288 CL-295 CL-320 CL-325 CL-329 CL-346 CL-379 CL-400 CL-407 CL-475 CL-595 CL-704 CL-760 CL-823 CL-901 CL-915 CL-934 CL-981 CL-984 CL-985 CL-1026 CL-1195 CL-1200 CL-1400 CL-1600 CL-1700 CL-1800 CL-1980

Other projects	SR-72

By role

Airliners and civil transports	Vega Sirius Altair Orion Electra Electra Junior Super Electra Lodestar Constellation (L-049 L-649 L-749) Super Constellation (L-1049 L-1249) Starliner Saturn Electra L-402 JetStar L-100 L-1011

Military transports	Y1C-12 Y1C-17 Y1C-23 Y1C-25 C-36 C-37 C-40 C-56 C-57 C-59 C-60 C-63 C-66 C-69 UC-85 UC-101 C-104 C-111 C-121 C-130 / C-130J / HC-130 / KC-130 / LC-130 / MC-130 C-139 C-140 C-141 C-5 JO XRO R2O R3O XR4O R5O R6O / R6V R7O / R7V R8V / GV / UV TriStar

Attack and bombers	Y1A-9 A-28 A-29 XB-30 B-34 B-37 AC-130 A-4AR F-117 FB-22

Drones/UAVs	Q-5 Q-12/D-21 AQM-60 MQM-105 P-175 RQ-3 RQ-170 See also: DC-130

EW and reconnaissance	O-56 F-4 F-5 F-14 YO-3 EC-121 EC-130 / EC-130H WC-130 EP-3 RB-69 U-2 / TR-1 A-12 SR-71 PO / WV XW2V

Fighters	XFM-2 XPB-3 YP-24 P-38 XP-49 XP-58 P-80 F-80 XF-90 F-94 F-97 F-104 (F-104 variants) YF-12 F-16 YF-22 F-22 F-35 FO XFV

Helicopters	CL-475 XH-51 AH-56 VH-71

Maritime patrol	PBO PV P2V P-2 P3V P-3 P-7 S-3 CP-122 CP-140

Trainers	AT-18 T-33 T-40 TO / TV T2V / T-1

Experimental	M-21 NF-104A QT-2 Senior Prom XC-35 XF-104 VZ-10 / XV-4 X-7 X-17 X-26B X-27 X-33 X-35 X-44 X-55 X-56

Names

¹ Not assigned.

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Accidents/incidents	Commercial airliners by location Fatalities by death toll General aviation Military

Records	Airspeed Altitude Distance Endurance Firsts Large Most-produced aircraft Most-produced rotorcraft

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Lockheed Little Dipper