Spec. Page

Single Rotor:

B -->

 B211/B027/B193/B273/B472/B260

Mosquito

0303

Ultrasport - 254

0097

Revolution Mini 500-B

0162

Helicycle

0160

Masquito (2-seat) (Belgium)

0157

Robinson ~ R-22

0385

Kompress (2-seat)

0922

Sikorsky (concept)

1281

 Reverse Velocity Rotorcraft Proposal

ANKA 2-place Training Helicopter

ANKA

 (concept) ANKA ITU Proposal AHS2006

Sikorsky - VS-300

1607

Sikorsky - Electric Firefly

1930

Intermeshing:

1122

Flettner ~ FL-282 Kolibri

0474

Kellett ~ XR-8, XR-10

0896

Kaman ~ H-43 Huskie

0742

Kaman ~ K-MAX

0473

DeGraw ~ Hummingbird

0475

A one-off experimental homebuilt.

SNCAC NC.2001 "Abeille"

Outside Site

Built three prototypes of the "Abeille". June 1949

Ivo Zdarsky

Built and flown approximately 1990. It still exists. Collective set by engine torque.

Otto Reder

He designed a portable intermeshing helicopter in 1943. For sketch see [Source ~ HTR p.92] [Deutsches Museum: Numerous files consulted in the Sondersammlung, amongst which are Otto Reder's personal papers. No referencing system in place.]

CW-105 by Clybouw Willy

1459

in 1970, Belgium

Karel Horak in 1950.

Outside Site

in 1950. Czech.

Praga E.1

Outside Site

Also see [Source ~MDD p.188]

Stepniewski (concept)

1093

Synchropter, incorporating ABC principle by W.Z. Stepniewski

CalVert (concept)

Outside Site

Windstar (concept)

1284

Development project by outside party.

Interleaving:

1121

Landgraf H-4

1091

Mil V1-12 (Mi-12) Homer

1469

Bolkow B0 310

1742

 Derschmidt High-speed Rotor

Side-by-Side:

1120

"вертолёт поперечной схемы" ~ in Russian

Focke Fw-61

Outside Site

Rotation is inside forward. The two rotors have dihedral. See NACA TM 858. Have hard copy.

Focke-Achgelis Fa 223

Outside Site

Weir W-5

Flights 2 years before Sikorsky's VS-300

Weir W-6

For Weir see Vertiflite Fall 2002, page 66

Sud-Est SE 3000

Outside Site

Re-baptized German FA 223.

Platt-LePage, XR-1 & XR-1A.

Outside Site

 Another Outside Site

Kamov Ka-22 "Vintokryl"

Outside Site

The direction of rotor rotation was changed. The pictures show outside-forward.

Cornu, Paul, 1907 - First flight ~~ Actually - fore & aft configuration

1605

Evaluation of early a high weight/power ratio re the development of future electric rotorcraft.

Firth FH-1 (1952)

Outside Site

More Based on the Landgraf H-4 Interleaving

Kamov V-100

Outside Site

Kamov Ka-35

Outside Site

Quad Rotor:

De Bothezat

2115

Very high thrust/power blade profile.

IVO

Article 4-rotor

Picture & article of 4-rotor helicopter. Picture of 8-rotor.

Sir George Cayley

Cayley

An 1845 rotorcraft concept that may well be the harbinger of tomorrow's heavy lift transport.

Boeing (proposal)

Coaxial:

1119

Sikorsky ~ XH-59A ABC

0891

Sikorsky ~ X2TD ABC

1465

Kamov Ka 56

1009

Hiller XH-44 (rigid, 2-blades/rotor)

Outside Site

Hiller X-2-235 (rigid, 2-blades/rotor)

Outside Site

EzyCopter

Outside Site

Ultralight. Under development.

Little Zipster - B-9 and B-8MH

0055

Bensen

Pascal Chretien [Electric]

2071

 Outside Site

MicroLite:

Backpack & Foot landing:

1764

Overview of many.

Gen H-4 Rhyme BDH strap-on

Outside Site

Helicopter Disk and Power Specification

Heliofly

Outside Site

By Paul Baumgärtl Have hard copy of two articles.

Hoppicopter

Outside Site

By Horace Pentecost Have copy of patents.

PropRotor:

1685

Tandem:

1123