I have had a troubling question ever since I became interested in rotary flight and I know I must be careful with words so as not to be miss interpreted here. My understanding is that the major secret that Cierva uncovered was that the movement of the rotor blade in an up and down motion as it...
I am wondering if anyone out there has any ifnormation about the building of a rotorblade of perhpas 20 feet in overall length of mainly carbon fiber and fiberglass and some small amounts of aluminum. I would be interested in hearing comments about the idea. This would not be a rotorblade that...
I am searching for any plastic extruder that might be producing an airfoil shape (as in autogiro rotors---flat on bottom). My concerns are for model type autogiros and would have a width of 1 inch to 4 inches.
I am renewing my search on how to go about finding a plastics firm that could provide me with some test units of a model rotor blade that I need for a new type of flying Autogiro Rotorkite that I am patenting. The blades on the rotor would be 24 inches long x 1/4 thick and 1.5 inches in width...
I have not met with any success in trying to bend 5/8 (.625) OD, 6061 aluminum tube with a wall thickness .035. I have tried both hot and cold bends and the inside of the 70 degree and 20 degree bends always kinks badly which weakens the overall strength of what I am making.
I am wondering if...
I have designed a successful model autorotation flying machine that I call a Rotorkite. Two of my smaller models have rotor spans of 29 and 50 inches respectively which means the rotor blades are 14.5 and 25 inches in length. I intend on making an effort to market my efforts and of course the...
I have been searching all over the internet for some time now for manufacturers of pultruded graphite tubing in the size of around .250 outside diameter X 32 inches in length and cannot for the life of me find anything. I have been to dozens of sites that google or yahoo comes up with but cannot...
I have always been fascinated with the swash plate used to control the rotor on a helicopter and have even built several in my machine shop. But I continue to be a bit mystified by just how it is they operate with the various actions they perform without those actions interfering with one...
I have developed a flyable and controllable model of a flying rotor. I am exploring the possibilities of the airfoil for one of these models (presently built out of wood 1.5" X 24" X .250) being produced in a hollowed out configuration that would be extremely light and yet quite...
I have been working for some years in an effort to develop a flyable and controllable rotorkite. That is, a unit with a rotor spun by the normal wind that will create lift and thus fly. I have met with much success and many problems as most probably any engineer can envision.
What I need to...
I am wondering if anyone out there knows of the availability of plastic sheeting that could be used as the material for model rotor blades. I am thinking of an ideal dimension of 3.5 inches wide by 24 inches long by ¼ inch thick. Of course it would be ideal if they were at least roughly shaped...
I am wondering if anyone out there knows of the availability of plastic sheeting that could be used as the material for model rotor blades. I am thinking of an ideal dimension of 3.5 inches wide by 24 inches long by ¼ inch thick. Of course it would be ideal if they were at least roughly shaped...
For experimental purposes I want to build a rotorblade that is as light
as possible for the purpose of being able to pick up 200 pounds. My
plan is to build a blade (I built one a few years ago out of steel
(welded)) out of aluminum. I plan to cut the airfoil shape
(asymmetrical) from aluminum...
