• Hi Guest! Forum rules have been updated. All users please read here.

Groen Brothers « Monsoon », a Hercules-based gyroplane

hesham

ACCESS: USAP
Senior Member
Joined
May 26, 2006
Messages
27,787
Reaction score
4,942
Hi,

is that a really design or not ?,and what is this ?.
 

Attachments

  • unknown.jpg
    unknown.jpg
    68.3 KB · Views: 320

Antonio

ACCESS: Top Secret
Staff member
Senior Member
Joined
Jan 22, 2006
Messages
3,541
Reaction score
326
Hi Hesham,

It is a real but unbuilt design from Groen Brothers

http://www.groenbros.com/
 

Kim Margosein

ACCESS: Confidential
Joined
Feb 10, 2007
Messages
101
Reaction score
5
What is with gyroplanes? It seems like such a no-brainer idea, but the projects and the companies that promote them seem to dry up and blow away. What is the inherant flaw?
 

Vahe Demirjian

I really should change my personal text
Joined
Mar 1, 2013
Messages
624
Reaction score
293
I saw an artist's conception of a Groen design for a military gyroplane transport based on the Hercules in an edition of Janes All-the-World's Aircraft.
 

taildragger

You can count on me - I won a contest
Joined
Nov 2, 2008
Messages
326
Reaction score
207
What is with gyroplanes? It seems like such a no-brainer idea, but the projects and the companies that promote them seem to dry up and blow away. What is the inherant flaw?
Their inherent limitation is their inability to maintain a sustained hover because the rotor system is, in a pure autogyro, unpowered. VTOL takeoffs and landings are conducted with the rotor driven by inertia and constantly slowing so these operations must be completed very precisely. Mechanisms to drive the rotor were introduced but the result starts to get as complex as a helicopter and so erodes the type's main virtue: mechanical simplicity. They seem to have an advantage over fixed wing aircraft in STOL operations but introduce the complexity and speed limitations of a rotor.
 

Similar threads

Top