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HomeAircraftHelicopterHelicopter Main Discussion › This scale heli interests me!
06-14-2013 04:47 PM  5 years agoPost 1
red_z06

rrProfessor

Dumont, NJ

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Does anyone know if this is a kit?

www.JustinJee.com

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06-14-2013 05:41 PM  5 years agoPost 2
deanguy

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TX

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Robbe used to make it years ago I think.. you would be hard pressed to find one now

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06-15-2013 12:55 AM  5 years agoPost 3
Jim Patterson

rrApprentice

AREA 51 Roswell

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Man I thought that was a real ultralight helI until I blew up the pic. Guess I'd better get my eyes checked.

Highly addicted to carbon fiber.....

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06-15-2013 01:42 AM  5 years agoPost 4
Gearhead

rrMaster

Vt

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they did make it in a full size, the Roto Cycle, made by Hiller

http://www.hiller.org/files/i/rotorcycle.html

Jim
Buzz Buzz Buzz

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06-15-2013 01:48 AM  5 years agoPost 5
Gearhead

rrMaster

Vt

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another photo of the model

Jim
Buzz Buzz Buzz

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06-15-2013 02:22 AM  5 years agoPost 6
red_z06

rrProfessor

Dumont, NJ

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What scale was that thing?

www.JustinJee.com

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06-15-2013 02:27 AM  5 years agoPost 7
Gearhead

rrMaster

Vt

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I don't know, but the man in the photo is larger than he appears

Jim
Buzz Buzz Buzz

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06-15-2013 11:52 AM  5 years agoPost 8
Teeg

rrNovice

Monroe, NJ 08831

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Eh, too bad the Roto Cycle didn't come in a FBL version....

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06-15-2013 06:13 PM  5 years agoPost 9
jgunpilot

rrKey Veteran

Pollock, LA

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There is a prototype Rotocycle rotting away in an outbuilding at Ft. Rucker. It should be inside in the museum, but they have other priorities.

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06-16-2013 01:01 AM  5 years agoPost 10
stubbs

rrApprentice

Tuscon, AZ

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I wonder if the pilot's arms actually move with that cyclic thingy.

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06-16-2013 01:14 AM  5 years agoPost 11
BrokenlinkrrElite Veteran - Oakdale - My Posts: All  Forum  Topic

Another early Hiller helicopter

Jamie Griffith

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06-16-2013 07:41 AM  5 years agoPost 12
R.J.

rrVeteran

SF bay area, CA USA

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Does anyone know if this is a kit?
I believe it was a scratchbuilt heli by someone in Germany.

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06-16-2013 02:57 PM  5 years agoPost 13
stubbs

rrApprentice

Tuscon, AZ

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Wonder how that thing autoed (or not) in real life.

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06-16-2013 03:56 PM  5 years agoPost 14
red_z06

rrProfessor

Dumont, NJ

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Wonder how that thing autoed (or not) in real life.
I expect it to do just as well as any other heli.

www.JustinJee.com

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06-16-2013 09:04 PM  5 years agoPost 15
stubbs

rrApprentice

Tuscon, AZ

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I expect it to do just as well as any other heli.
So, all full scale helos (or at least those capable of carrying a person or persons) auto the same? Uh, sorry, no...

Do you know the overall weight of the airframe versus the swept rotor area to calculate disk loading? Do you know the weight of an individual main blade to figure out disk inertia and how fast Nr (head speed) would rise and decay with collective input on the way down? If so, please tell the rest of the class...

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06-17-2013 07:55 AM  5 years agoPost 16
GetToDaChopper

rrElite Veteran

Las Vegas , NV

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So, all full scale helos (or at least those capable of carrying a person or persons) auto the same? Uh, sorry, no...
Uh, sorry, yes...

Gravity pulls the heli downwards and the rotor disk stops that decent if done corectly.
Each type of helicopter has a specific airspeed and rotor rpm
at which a power-off glide is most efficient. The specific
airspeed is somewhat different for each type of helicopter, but
certain factors affect all configurations in the same manner
. In
general, rotor rpm maintained in the low green area gives more
distance in an autorotation. Higher weights may require more
collective pitch to control rotor rpm. Some helicopters need slight
adjustments to minimum rotor rpm settings for winter versus
summer conditions, and high altitude versus sea level flights. For
specific autorotation airspeeds and rotor rpm combinations for a
particular helicopter, refer to the Federal Aviation Administration
(FAA)-approved rotorcraft flight manual (RFM).
The specific airspeed and rotor rpm for autorotation is
established for each type of helicopter on the basis of
average weather, wind conditions, and normal loading.
When the helicopter is operated with heavy loads in high
density altitude or gusty wind conditions, best performance
is achieved from a slightly increased airspeed in the descent.
For autorotation at low density altitude and light loading,
best performance is achieved from a slight decrease in
normal airspeed. Following this general procedure of fitting
airspeed and rotor rpm to existing conditions, a pilot can
achieve approximately the same glide angle in any set of
circumstances and estimate the touchdown point.

class dismissed.......

    ▲
  ▲ ▲
▲ ▲ ▲ One of a Kind !!!

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06-17-2013 09:53 AM  5 years agoPost 17
1heliman

rrApprentice

us

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And all that handy dandy information was written in a notebook for the pilot to read as the helicopter plummeted towards tera firma. Give me a break.

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06-17-2013 01:05 PM  5 years agoPost 18
GetToDaChopper

rrElite Veteran

Las Vegas , NV

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Does that somehow make it invalid ? Give me a double break......

    ▲
  ▲ ▲
▲ ▲ ▲ One of a Kind !!!

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06-17-2013 01:30 PM  5 years agoPost 19
stubbs

rrApprentice

Tuscon, AZ

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So, with ALL those variables, this thing will auto "just like any other helo", huh?

FAIL

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06-17-2013 03:06 PM  5 years agoPost 20
GetToDaChopper

rrElite Veteran

Las Vegas , NV

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You did say "all full scale helos" ???

Double FAIL FAIL

    ▲
  ▲ ▲
▲ ▲ ▲ One of a Kind !!!

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HomeAircraftHelicopterHelicopter Main Discussion › This scale heli interests me!
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