Welcome to Diamond Helicopter Developments. This section of our web site is to provide information on a new range of helicopters, which we are currently developing. The photos on this page show some of our Diamond Nitro 90 prototypes being assembled. These helicopters incorporate the latest technology and have the highest quality components. Our aim is to produce the highest performance machines on the market, exceeding all current benchmarks for weight and manoeverability. Please keep checking back to see developments as they happen. We hope to have the Nitro 90 available late summer with a gas version utilising the Zenoah G260PUH engine following quickly on. A turbine (Wren MW 54) and an electric derivative utilising the Plettenberg HP 370/40/A2 motor should be available by the end of the year.

Latest News: (Updated 27th April 2007)

The 4eccpm version of the Diamond 90 Nitro continues to undergo flight tests. These tests are progressing well and the minor bugs you expect with new products are being identified and rectified with a degree of urgency. In parallel with this test program the 3eccpm version is developing well. Many lessons learnt from the 4eccpm model have been incorporated in the design, plus many 'wish list' items requested by experienced pilots have been accommodated. All models will take advantage of new manufacturing suppliers and techniques, and to  this end very few items are now 'borrowed' from other commercially available kits.

3eccpm brief overview:

Rear mounted fuel tank with quick fit piping system.

Quick remove 'power pack' engine assembly for easy on field maintenance.

Quick remove 'control pack' covering all RC equipment and batteries making assembly and service very easy.

Top quality combined sprague / radial ball bearing auto-rotation bearing assembly.

High cyclic swashplate design.

Short throw control system.

Option for either 120° or 140°  eCCPM control.

Compound 5mm / 4mm flybar system utilising latest plain bearing technology.

10mm /12mm hybrid main shaft.

High C of G with mass centralisation.

Anticipated flying weight less fuel is 4kg.

Latest CAD photos added shown integral servo mount version.

Model will be known as KATANA 69N.
Download area updated with latest drawings (27th April 2007).

 

We warmly welcome people to contact us by either phone or email to discuss latest progress and availability.