Jerry Airola Las Vegas
Jerry Airola Las Vegas
Jerry Airola Helicopter Pilot
The CRT screens that I described before serve several purposes. Not only are they for video viewing, target designation, and aircraft instrumentation, but they are also capable for being used for navigation (INS). The new "R" model aircraft manuals refer to it as "EGI/INS" (Embedded Global Positioning System/Inertial Navigation System). EGI now updates the INS, unless EGI isn't functioning, then manual updates must be performed over surveyed waypoints to correct for gyroscopic drift in the INS. By inserting lattitude and longitude information, and initializing the aircraft position, the navigation system will tell the pilot where he is if GPS information is not available. On the older models, before the GPS was available, the pilot had to periodically update positional information manually over known waypoints to keep the system accurate, and the navigation system could help him to accurately navigate at low levels. Now EGI will make those updates if available. It now gives even more accurate positional information critical to the adjustment of artillery as well.
This "Tilt-wing" design is unlike the "Tilt-Rotor" in that the whole wing tilts and not just the engine nacelles. A design like this loses the lift generated by the wing at lower speed and is less versatile than a pure "Tilt-Rotor" design. The engines could only lift it straight up and it had no form of helicopter controls.
Rotodyne
The Rotodyne used jet thrust at the rotor blade tips to propel the rotor to a high speed for takeoff and landing. The rotor would be unloaded in flight and the aircraft would fly like an airplane at cruise speeds. The major problem with this was the noise created by the jet powered rotor system.
How did they do this? Well first, you must understand "why" they did it. 58D-HoverThe Army needed a scout aircraft that would replace the aging fleet of OH-58 A and C model helicopters. It was not that the A and C models were bad aircraft, but they were older technology, and the modern battlefield needed a newer scout aircraft with capabilities far above those of the older OH-58 airframes. The Bell Helicopter company developed a new combat scout aircraft on their own with a mast mounted sighting system (MMS), and called it the OH-58D. What they did was to take an older A model OH-58 and totally refitted it with a new larger engine, heavier duty transmission, and a 4 bladed rotorsystem which was much quieter than the older two bladed system, and topped it with the MMS (Among other subtle changes). By filling the back seat area with complex electronics, the OH-58D became the scout aircraft that the Army wanted, and so desperatly needed.
If the Army were to put the "New Scout Project" up for bid, there would have been costly research programs, time consuming evaluation periods, and other companies would have to attempt to create something to compare with the OH-58D at a lower cost. That alone would have taken a long time for the other companies to scramble to design, build, and test the new aircraft. The resultant time period would have made the aircraft chosen almost obsolete before it could ever see combat. Also, there was a good chance that the Army would not get the OH-58D as it was. They would have had to eliminate some of the performance or capabilities in difference to lowering the production cost to be competitive with other manufacturers. Sometimes, the protections that we have imposed upon ourselves to save the Government money can work against us. So they just decided to "Improve" the existing fleet of OH-58A and C models to become OH-58D's (I have since been told that only "A" models were "Improved"). This helped the Army to bypass the limits of bidding wars, and allowed them to get the aircraft that they wanted. Thus the Army Helicopter Improvement Program of AHIP was born.
Autorotation
Autorotation Example Most people think that a helicopter will fall like a rock and the rotor system will stop once the engine fails. This is a totally false assumption. A helicopter can continue to fly without any power from the engine. "Autorotation" is the term used for "Gliding" a helicopter down after the engine fails or the throttle is retarded to the idle position.
If you look at a rotor blade from the tip of the blade toward the root, you will see it will twist laterally. At the tip of the blade, the leading edge may point down while at the root of the blade, the leading edge may point up. This allows different regions of the blade to perform different tasks, one of which is Autorotation. The outer portion of the blade, when the collective is lowered all the way to what is called "Flat Pitch", will drive the rotor system as the aircraft glides downward, increasing or maintaining the speed of the rotor system. The rotor system is driven normally by a centrifugal clutch which is positively engaged while the engine supplies power, but disengages when power is removed. The rotor system "Free Wheels", and continues to spin. The air traveling upward through the rotor system continues to drive the system and maintain rotor RPM.
The aircraft descends rather rapidly, but with a high rotor RPM, the aircraft can be cushioned to the ground effectively and landed without incident. Additional weights are housed in the tips of the rotor blades to increase the inertia of the rotor system, and aid in autorotation. The procedure for autorotation is to lower the collective immediately and put in full right pedal, and enter a steady state of autorotation. Full right pedal must be put in because the torque has stopped from the lack of engine power, and the tail rotor thrust is only necessary at this point to control aircraft trim. (By putting in right pedal, you effectivly neutralize the tail rotor, and it provides no thrust). The pilot must find a suitable landing area, and maneuver as necessary to make the intended landing area, making certain that the rotor RPM is within limits. At approximately 100 FT AGL (Above Ground Level) start a progressive deceleration to decrease forward airspeed, and about 15 FT AGL, lift the collective in a quick jerking motion to cushion the aircraft initially as a vertical brake. The initial collective pitch pull should be enough to retard the descent, and the rest of the collective pitch should be pulled in gradually and continually as the aircraft settles to the ground. You should land with little or no forward airspeed, and the landing should be relatively soft, depending on the surface you are landing to. A safer autorotational approach depends on where you land. If you land in a field where forward movement would be dangerous, you should plan for a shorter landing run. This requires a more vertical drop in the last part of the autorotation. If you have the room to slide, then a more shallow approach can be made and a longer ground run should be allowed. A more vertical drop is harder to accomplish and your timing needs to be alot more precise, where a shallower drop is more forgiving and you need to be less precise on your timing.
In a Chinook, the rear wheel locks are electrically operated. During autorotation, If the rotor RPM decreases below a certain value, the generators will fall off line, and the wheel locks will disengage. If this happens, the aircraft will most likely land aft wheels first, and without swivel locks engaged on the rear wheels, it could make for a very interesting ride.
This is the Advancing Blade Concept aircraft. Notice that it looks a lot like both an airplane and a helicopter. The side mounted jets were to push the aircraft along using jet thrust as the primary means of propulsion. It has contra-rotating (Contra...not counter) rotors mounted co-axially (One on top of the other)to eliminate retreating blade stall characteristics.
58D-HoverThe Army needed a scout aircraft that would replace the aging fleet of OH-58 A and C model helicopters. It was not that the A and C models were bad aircraft, but they were older technology, and the modern battlefield needed a newer scout aircraft with capabilities far above those of the older OH-58 airframes. The Bell Helicopter company developed a new combat scout aircraft on their own with a mast mounted sighting system (MMS), and called it the OH-58D. What they did was to take an older A model OH-58 and totally refitted it with a new larger engine, heavier duty transmission, and a 4 bladed rotorsystem which was much quieter than the older two bladed system, and topped it with the MMS (Among other subtle changes). By filling the back seat area with complex electronics, the OH-58D became the scout aircraft that the Army wanted, and so desperatly needed.
If the Army were to put the "New Scout Project" up for bid, there would have been costly research programs, time consuming evaluation periods, and other companies would have to attempt to create something to compare with the OH-58D at a lower cost. That alone would have taken a long time for the other companies to scramble to design, build, and test the new aircraft. The resultant time period would have made the aircraft chosen almost obsolete before it could ever see combat. Also, there was a good chance that the Army would not get the OH-58D as it was. They would have had to eliminate some of the performance or capabilities in difference to lowering the production cost to be competitive with other manufacturers. Sometimes, the protections that we have imposed upon ourselves to save the Government money can work against us. So they just decided to "Improve" the existing fleet of OH-58A and C models to become OH-58D's (I have since been told that only "A" models were "Improved"). This helped the Army to bypass the limits of bidding wars, and allowed them to get the aircraft that they wanted. Thus the Army Helicopter Improvement Program of AHIP was born.
Las Vegas Relocation Ideas Las Vegas Office Cleaning 702-804-2826 Office Cleaning In Las Vegas 702-804-2826 How To Choose A Las Vegas Office Cleaning 702-804-2826 Desperate In Las Vegas Best Way To Enlarge The Penis Effectively Without Injury Exposed! Natural Penis Male Enlargement Exercise May Cause You Some Extremely Serious Injuries! Commercial Floor Cleaning 702-804-2826 Las Vegas Las Vegas Window Cleaning and Pressure Washing Oil Stains Jerry Airola Las Vegas True Meaning of Las Vegas Foreclosures Using Las Vegas Odds Viva Las Vegas Office space: top fun facts