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The Bixel Gem Experiment
2005

After having mucked about with 'Russian'- type PAR models for a while I thought I'd have a  go at some other configurations.

This new model was built to explore some of the reports by Mr Chuck Bixel (USA).  He has been playing with his 'Double-Wing' concept for some time.

Another reason for building the model was to explore the air cushion takeoff aid concept, similar to that used by my friends at Fischer Flugmechanik.

This is only the first model of this type that I have built, and it is clear that I have much to learn.

Having spent four year thinking about it, doing a whole load of sketches, building the model over about one year, it became obvious within two minutes of putting the model on the water that there were many faults.   The model does not work properly yet (if only things worked first time!) so many modifications are needed.
Still, that is the nature of experiment engineering.

Here are some photos I'll share with you.....

basic construction
Early construction photo
 
side view
The profile
front no skirt


An air cushion is formed between the hulls
front with skirt
The bow skirt has been fitted
fancy underside
The fancy shape of the underside - without skirt
on the water
On the water
underway
Under way - first trials
Under way 1
Early trials - cushion not effective.

Modified with ducted fans and bow skirt fitted.

 

Bow skirt inflated - but still a lot of drag, and not much thrust.

Air cushion working here.

Another modification - this time to remove the ducted fans and fit part-ducted twin propellers - the thinking being this would give more effective static thrust.

The replacement bow.