Saturday, January 23, 2010
Sunday, January 10, 2010
This old Guillows stick and tissue model airplane, of the world famous 1927 Spirit of St. Louis aircraft, flown by Charles Lindbergh and credited with accomplishing the first non stop solo flight from New York to Paris. The Spirit was a highly modified Ryan M-2 Mail Plane. The model featured in the video clip, was once flown with a Cox .020 Pee Wee nitro engine and, has been resurrected and converted to brushless electric power. Using a 45 watt Indoor type, outrunner brushless motor. Radio Controlled with Rudder, Ailerons, Elevator, and Motor control, using a GWS micro radio with 50 gram servos, round out the set-up for this tiny 70 mm 34 inch WS model.....can hardly wait for the weather to warm, so that I can try flying it. The design is not that stable because of it's lack of wing dihedral angle and small tail surfaces. The Spirit was not always one of my favorite aircraft because of it's lack of windscreen or cabin windows. In time it's unique classic looks won me over and now I can say, it ranks away up near the top. I have a 7 foot WS model that I would fly from time to
See One Fly Here
This old Guillows stick and tissue model airplane which was once flown with a Cox .020 Pee Wee nitro engine has been resurrected and converted to brushless electric power.Using a 45 watt Indoor type Out Runner motor teamed up with a 10 amp ESC and 400 ma 7.4 volt Po-Li battery. Radio Controlled with Ailerons, Elevator, and Motor control, using a GWS micro radio with 50 gram servos, round out the set-up for this tiny 70 mm 27-1/2 inch WS model.
Wednesday, January 6, 2010
home made fuel
Number one fuel oil with an ignition temperature of 210 degrees C, looks like it would be a good candidate for replacing the lamp oil in my mixture. It may even work without any ether. I have read elsewhere that another name for fuel oil number 1 is kerosene. I recently bought a can and I plan to experiment with it soon.
|Fuel Oil No.1||210||410|
Modified SYNCHROGYRO Model Airplane as published in Model Builder Magazine in September 1979. Designed by George Chaulet to be flown with 2 channel RC control for the engine and rudder and said to be simple to fly. This is not what I have found. I managed to get into the air on one windy day but, found that I could not control it. The ship climbed away in an ever increasing right hand turn that eventually developed into a spiral dive when I throttled back because I was fearing the inevitable. Since that time I have increased the rudder area installed elevator control and added a headlock gyro to add some directional stability on the ground and hopefully in the air should that occasion ever arise again. Taxi testing proved that the headlock gyro will hold a heading, now I have to train myself to keep my hands off the rudder stick and let the headlock do it's job before attempting to fly it some windy day.It seems strange for an RC flyer to be hoping for a windy day to fly..... Maybe I can figure a way to spin up the rotor mechanically or use an electric motor perhaps. Watching my video I learned that I was hand spinning the rotor in the reverse direction during the ground trials. I have to keep reminding myself that this is not a helicopter, it's an auto gyro.....it is supposed to auto rotate in order to develop enough lift to fly. The rotor takes energy form the air like a windmill or a sail boat.
Testing continues as the wind speed increases from 5 to 15 kph. The copter manages a takeoff during ground trials but, a blade strike on landing caused the testing to be suspended while design changes are contemplated.I have come to the conclusion that maybe Cierva was right when he stated that the rotor must be of the articulated type for successful controlled flight of an autogyro aircraft. Initially I believed that since the Synchrogyro had two inclined rotors, it would be capable of controlled flight in the same way as a fixed wing airplane with high dihedral was rudder controllable. Now I am beginning to look for a simple way to modify the Synchrogyro rotors to articulating type.