Back Hillberg Rotermouse EH 1-01
1993

Hillberg Rotermouse EH 1-01

Company founded 1990 to provide maintenance and modification services to helicopter operators, and moved into kit and experimental fields to help builders.

Hillberg has also developed the four-seat 1-04, which awaits funding for production. Produces a retrofit kit for the RotorWay Exec, upgrading it to turbine power with a Solar T62-T32 of 112kW and reducing empty weight to 340kg; at least 13 delivered by October 2003.

HILLBERG EH 1-01 ROTERMOUSE and EH 1-02 TANDEMMOUSE

TYPE: Single-seat helicopter kitbuilt; two-seat helicopter kitbuilt.

PROGRAMME: Design and construction of prototype began in August 1990; first flew (N10TE) August 1992. Construction of first production aircraft began in September 1996. Type is currently certified as experimental by FAA.

CURRENT VERSIONS:

  • EH 1-01 RoterMouse: Single-seat version. Description applies to EH 1-01 except where indicated.

  • EH 1-02 TandemMouse: Tandem two-seat version; under development; was due to fly 1999; this date slipped, but this version is believed to have flown by early 2001. Powered by 112kW Solar T62-T32 turbine engine. Provisional figures appear below.

  • EH 1-02A: Development of EH 1-02; has 313kW Rolls-Royce 250-C20B with 681 litre fuel tank.

  • CombatMouse: Proposed military version.

CUSTOMERS: By June 2002, 31 had been ordered, of which at least four had been built.

COSTS: Kit: EH 1-01 US$68,000 (2003) ex-works US$100,000; EH 1-02 US$120,000; all prices encompass everything bar radio equipment (2003).

DESIGN FEATURES: Forward fuselage resembles Bell AH-1 HueyCobra. Stub-wing behind cockpit for carriage of external loads. Main rotor speed 510rpm; tail rotor 3,250rpm.

FLYING CONTROLS: Auto-governed hydromechamcal flying controls. Optional rotor brake.

STRUCTURE: Aluminium alloy (2024-T3) monocoque fuselage, bulkheads and keel; stainless steel engine deck and firewall. Rotor has Gyrodyne QH-50 modified blades of NACA 1200 aerofoil section with 8 twist and block tip caps. Modified Robinson R22 hub and transmission. Conventional tail rotor using aluminium-skinned blades.

LANDING GEAR: Fixed steel cross-tube skid type; floats optional.

POWER PLANT: One 108kW Honeywell 36-55-C turboshaft engine driving a non-folding, two-blade, semi-rigid wood-laminated main rotor. Engines in range 108-186kW are suitable. Single 125 litre crash-resistant bladder fuel tank around transmission; refuelling point behind main mast. Optional 76 litre fuel tank on stub-wing. EH 1-02 has 170 litre fuel capacity.

ACCOMMODATION: Single pilot in enclosed cockpit. Entry through upward-hinged port and starboard side windows. Baggage compartment behind seat.

SYSTEMS: 24V 60A electrical system; Electrocraft alternator.

EQUIPMENT: Optional cargo hook.

HILLBERG EH 1-04 Baby Huey

TYPE: Four-seat helicopter kitbuilt.

PROGRAMME: Work is continuing on a proposed development of RoterMouse/TandemMouse with four seats and external cabin styling resembling Bell UH-1 Huey. Max take-off weight 1,134kg.

Jane's All the World's Aircraft, 2004-2005

In addition to helicopter maintenance and modification, Hillberg Helicopters offers the RotorMouse EH 1-01 as a single-seat turbine experimental-category helicopter for construction from a kit (first flown August 1993), RotorMouse EH 1-02 tandem two-seat version, and RotorMouse (Baby Huey) four-seater. Also built the T-4 Turbine as a four-seat turbine helicopter (not in production at time of writing), and produces a retrofit kit for the RotorWay Exec to provide a turbine engine (first flown 1997).

D.Mondey "The New Illustrated Encyclopedia of Aircraft", 2000

Links:

Technical data for EH 1-01

Main rotor diameter: 6.10m, tail rotor diameter: 0.91m, overall length, rotors turning: 7.32m, fuselage length: 6.35m, height overall: 2.26m, max. take-off weight: 621kg, empty weight: 295kg, max level speed: 257km/h, cruising speed: 209km/h, vertical rate of climb: 823m/min, service ceiling: 4,495m, range with max payload: 555km, range with max fuel: 1287km

Comments 
Antonio Mariscal, e-mail, 02.11.2015

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don, e-mail, 27.10.2015

Sure has been a slow economy,,,race relations in the tank

Bet that Nigger Obama has something to do with it. . .

ABUSES WITH THE IRS BLM DOJ NSA etc. etc. etc.

George Soros buying protesters , votes and congress

Projection of power in the Pacific- Just like Hillarys Arab Spring and Benghazi- a total fuck up from the top down.

Obozo turning America into a criminal state .

Indonesia Islamic POTUS sure has a track record of our enemies......Fuck him.

Don Hillberg, e-mail, 12.04.2013

The proto 1-02 is in storage, I don't have a FW certificate , Thanks for the offer. Just had another 1-01 finished in the south pacific, my # is on the Youtube "RotorMouse.mov Will be getting special procedures for the back, Hope it works,My Back will never be better, Just less screwed up.

Bearman, e-mail, 12.02.2013

Don....that trade that I'm thinkin about for the Smith Super Cub would be for an EH1-02 KIT! Not a completed EH1-02! Thanx again! Bearman (Barry)

Bearman, e-mail, 12.02.2013

Hi Don....hope you're feeling better with that back, I know what you're going thru. Anyway....what's going on with the EH1-02? I may be retiring to my Missouri farm soon and need a project.
I have a completed and flown Smith Super Cub with too much to list that I may be intrested in a trade with somebody with an EH1-02 that he/she may wanna trade. Just a thought.
Thanx....Bearman (Barry)

Don Hillberg, e-mail, 15.08.2012

Every things on hold, I suffered a major Back injury some time ago & It was at work (Ventura County Sheriff Department Air Unit) Doing my job on the ground & not in the air,Had my Certificates from 1979 & be damned I got screwed up removing a Simplex water tank from a Huey. & not drilling a hole through mother earth in the RotorMouse.

shoes, e-mail, 20.09.2011

cost of a small helcopter would cost... not just one but a wide veriety of small choppers. THANK YOU!

Don Hillberg, e-mail, 31.08.2011

Transfering to digital format,Plans sold with revisisons as required.See rotormouse.mov for contact information.

Jerry Salisbury, e-mail, 18.08.2011

What is the cost of plans for this helicopter Eh1-01?
What is the cost for the kit? Can you buy different kits as you build?

Thanks
Jerry

Don Hillberg, e-mail, 14.06.2011

Go to YOU TUBE-Rotormouse.mov phone # is listed on video.

soccer, e-mail, 11.06.2011

Are you still producing this helicopter and its plans. I cant find much info on them and would like to know if you are still in the business. Thank you

Don Hillberg, e-mail, 16.02.2011

I'm workin on it....Prices to come,Have to get off my butt.

W. J. Derrick, e-mail, 11.02.2011

I am of the understanding that you have plans available for most if not all of our models. What do you actually have and what is your price scheme. Other than the prototype... how many have actually flown? What is the availability of components and their average costs?

Thanks...

W. J. Derrick, USAF (RET)

Don Hillberg, e-mail, 29.06.2010

Use this e mail address for contact & see you tube "rotormouse.mov and Oshkosh 1995" to see it.also see hangarrats the movie for mouse action and no plot line.

Don Hillberg, e-mail, 07.05.2010

Rotorway owners group has pix of my latest design and You Tube has the Rotormouse, look for Rotormouse.mov or Oskosh 1995.mov prices change helicopters are never cheap,

Jeremy, e-mail, 01.05.2010

Don why don't you have a Web Site made with more Pictures Kit prices Blueprint prices more information I have a friend who could build a site for you and he is currently trying to set up his own server I could talk to him on your behalf just say the word

don hillberg, e-mail, 27.04.2010

If your Intersted in my designs or any questions call 805-658-8245 Im still burnin and turnin Don Hillberg

George, e-mail, 16.04.2010

Has anyone successfully contacted the company lately?
Also what's the status of its 4-seat helicopter? will it be a kit helicopter? with RR 250 C20B engine? please kindly reply to my email address. Thanks & God bless

rishiraj singh, e-mail, 01.03.2010

wanna use it for personal use wanted to know the cost in india, or any other craft available 2 or 4 seater

Arnum, e-mail, 02.06.2009

How do i contact and find info on the Eh1-02. the phone no. for Hillberg Helicopters in CA. does not work.

Barry M, e-mail, 31.05.2009

How many EH 1-02's are flying and what's the safety record of the aircraft? Is the chopper still in production and what's the cost of a complete kit? What helicopter would you suggest for me to take flight training in that's closest to the flight characteristics to the tandem mouse? Is it low maintainence for a helicopter? Thanx!

Jake, e-mail, 05.02.2009

Dude this is a hectic helicopter its a mini army one lol i was thinkin of designin one just like it. This tops all mini copters if it had all the best equipment like spent lots of money on it.

Stevem, e-mail, 08.10.2008

Don,I would like more info on the mouse with a sky shark.I am interested in a single or two seater mouse.Thanks for the info.

Roger Nolan, e-mail, 04.10.2008

I am interested in your EH1-02 can this be built with on seat behind the other not side by side and how much would the kit cost

myles jessop, e-mail, 21.08.2008

i am very interested in small helicopters and i would like more information how to get a kit or if it comes whole. also i would like to know what the average cost of a small helcopter would cost... not just one but a wide veriety of small choppers. THANK YOU!

andrew, e-mail, 21.01.2008

I am interested in the 2 seater. Are you still producing this helicopter and its plans. I cant find much info on them and would like to know if you are still in the business. Thank you

Don Hillberg, e-mail, 31.10.2007

Flood, Mud, Moving, and more.The mouse is back with a sky skark. For information E-Mail me .

FARDIN, e-mail, 23.07.2007

I am from IRAN.
Is there a plans available , how much?
my email is engfardin@yahoo.com
tanks.
FARDIN

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