Don Hillberg’s TandemMouse Helicopter Plans
We are still trying to gather more information on the TandemMouse Helicopter from Don Hillberg of Ventura, C.A. Please contact us if you can assist. Don has described it as a Cobra 1/2 scale helicopter as seen in the following photos not yet fitted with it’s transmission.
TYPE: 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 information appear below.
FLYING CONTROLS: Auto-governed hydro-mechanical flying controls. Optional rotor brake.
STRUCTURE: Aluminium alloy (2024-T3) monocoque fuselage, bulkheads and keel; stainless steel engine deck and firewall.
LANDING GEAR: Fixed steel cross-tube skid type.
SYSTEMS: 24V 60A electrical system; Electrocraft alternator.
EQUIPMENT: Optional cargo hook.
TYPE: EH 1-02A
Development of EH 1-02: has 313kW Rolls-Royce 250-C20B with 681 liter fuel tank.
All photos courtesy Don Hillberg.
I (Don Hillberg) can be reached at 2681 Barnacle Cove Port Hueneme California 93041 (805) 394-0860
Oxnard Air Port Hangar C-40
Mr Hillberg
Do you have any plans to put the TandemMouse on the market in kit form or offer plans?
I’ve read that the prototype has flown, how far did the flight testing get?
I’m looking for another project (as soon as I get a house sold)
I’ve built a Smith Super Cub before, but I’ve been interested in helicopters for quite some time
Thanks for your time and would it be OK for me to call you at the number listed?