UPDATED: May 25th, 2009

To build a Flying Saucer the first thought that comes to mind, naturally, is how to make it fly? Electro Anti-Gravity systems head the list, but we have no captured alien vehicles to back engineer and not enough funds to develop our own.

The next logical system is a "frisbee" drive. This is to set the disc into rotation, or at least part of the disc into rotation, and use impeller blades to "screw" upward raising the vehicle. Then we would need to develop a stabilization system to place the disc into useful altitudes for course changes and directions.

Then there is always renting a helicopter and attaching a string from the copter to the disc to move it around!

Our project will be rocket powered and, based on the Pye Wacket concept, will use the fixed body shape to attain aerodynamic lift, or "fake" aerodynamic lift. While the Pye Wacket points to a vehicle extremely acceptable to SuperSonic and HyperSonic activity, our DARQUE SOL will be a SubSonic vehicle. As such it will be dependant on thrust and atmospheric density to effect lift and control surfaces to effect command.

Two test vehicles were decided upon: FGG-1 and FGG-2. These were named after Professor Francis G. Graham, Physics Instructor, founder of the Tripoli Rocketry Association and hard proponent of using smaller versions to test larger concepts.
FGG-1 is a symmetrical cross section circular design having identical top and bottom surface shells. Outboard ailerons and center surface flaps, similar to that shown in the AEDC59-0993 photo. It was hoped control may be affected at SubSonic speeds.

FGG-2 is an Asymmetrical cross section disc having a shallow convex bottom and a somewhat raised top surface to help create lift. Control surfaces would be built into both top and bottom shells to create a streamline body.

Testing of these two concepts proved complete failures! A report on these two tests can be viewed by clicking HERE. Needless to say it became apparent that a scaling of a Pye Wacket missile was not going to happen. An alternative configuration was arrived at that would possibly attain flight and stability in sub-sonic speeds and keep the hope of rocket powered lenticular flight a possibility. This new concept was dubbed FGG-3.

Research with some models and intelligent discussion with professional engineers and designers, and talks with people having experienced with RC fabrication and flying knowledge. Several actual computer simulations, using the simple and standard ROCKSIM software were conducted to establish some stability and flight requirements. At sub-sonic speeds the disk concept is not a viable aircraft. At super-sonic speed the disk is light years ahead of “normal” aircraft design. (This is already inferred in previously collected Pye Wacket data.) A disk configuration CAN fly at sub-sonic speed. A slightly modified version of the FGG-1 proves the best all around configuration. (No large stabilizer fins required!) Its symmetrical cross section is more advantageous than the asymmetrical cross section of the FGG-2.

The FGG-2’s generated lift would not be conducive to flight control under rocket power. In glide mode the FGG-2 would be great in sub-sonic flight. Under full power it would want to lift causing major control problems for the pilot trying to fly it to altitude. The symmetric FGG-1 would require minimal control by the pilot during the power phase and during the slower glide phase the pilot would have complete control over the vehicle’s attitude to maintain flight.

A solution for direction stability was also developed. The need for massive fins, as placed on the MINI DARQUE SOL, would not be required. The final vehicle configuration would maintain the circular symmetrical design and general appearance of the FGG-1, with some observable, but acceptable in keeping true to the concept, modifications.

Special rocket motors need to be designed and developed. At this time no one in the non-professional rocketry community even consider the required design. The government already uses this design in many weapons common even to public knowledge. (Maybe the public doesn’t know the motor design, but they know the “missiles”).

Based on the acquired knowledge collected at the Black Rock meeting I am proceeding with the construction of a near half scale version (3 ft diameter) of the DARQUE SOL. With any luck, and funds, it will be ready for testing by September 2007.

The illustration below presents another cross section with reference to the top view. The control surfaces are seen as well as the three internal rocket motor positions.

The menu above will take you to the documentation of constructing and testing of the FGG-3 vehicle, and the resulting conclusions.