Hiller X-18

The X-18 was an experimental cargo transport aircraft designed to be the first testbed for tiltwing and VSTOL (vertical-short takeoff and landing) technology.

* Hiller X-18Hiller X-18The X-18 was an experimental cargo transport aircraft designed to be the first testbed for tiltwing and VSTOL technology.-Development:...1
* STRANGE HILLER X-18 HELICOPTER - HEAD ON VIEW * STRANGE HILLER X-18 HELICOPTER - WINGS 3/4 * STRANGE HILLER X-18 HELICOPTER - DIAGRAM 2
76/VZ-2 (1957), the twin-prop Hiller X-18 (1959) which never hovered and was scrapped, and the four-prop LTV-Hiller-Ryan XC-142 (1964).3
Hiller X-18 and Canadair CL-84 were the tiltwing prototypes tested. I don't understand why tiltwing research was stopped and tiltrotor gained popularity.4
In 1959 Hiller X-18 , was deemed to dengerous to attempt to put through the transition test, while the earlier Boeing Vertol VZ-2 had showed up the inherent drawback with 5

Made by Hiller Aircraft.

It is the successor of the Chase YC-122 Avitruc .

layout of the Hiller X-18 with the twin turboprop engines and the unique tail jet pipe for low/no speed pitch control.6
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X-19, Ryan XV-5, Doak 16, Hiller X-18, North American XFV-12A, Yak 36 and 141, LTV XC-142, and Lockheed XV-4A.8
The Hiller X-18 mounted engines on a tilting wing; the Curtiss Wright X-19 used tilting rotors. Both were flat failures.9
Jet Or Prop
both
Designer
Stanley Hiller
Predecessor
Chase YC-122 Avitruc
Engine(jet)
Westinghouse J34
Length Alt
19.2 m
Max Takeoff Weight Main
33000.0
Thrust Main
3400
Height Alt
7.5 m
Lists
* List of military aircraft of the United States* List of VTOL aircraft
Max Speed Alt
407.0
Type Of Prop
turboprop engines
Max Speed Main
253 mph
See Also
* Tiltwing* Tiltrotor
Developed From
Chase YC-122 Avitruc
Status
Max Takeoff Weight Alt
14850.0
Ceiling Main
35300.0
Number Built
1
Crew
2
Thrust Alt
15.2
Height Main
749.3
Span Alt
14.6 m
Plane Or Copter?
Power Alt
4100.0
Engine(prop)
Allison T40-A-14
Manufacturer
First Flight
24
Number Of Jets
1
Span Main
1463.04
Power Main
5
500 hp
Number Of Props
2
Type of jet
Empty Weight Alt
12150.0
Length Main
1920.24
Sequence
* X-15 - X-16 - X-17 - X-18 - X-19 - X-20 - X-21
Similar Aircraft
* LTV XC-142* Canadair CL-84
Related
* Chase YC-122 Avitruc
Empty Weight Main
26786.0
Ceiling Alt
10
800 m
Category

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