I began my journey with hang gliding shortly after completing my military flight training. Slipping the surly bonds in a jet was a great adventure as I whisked through the cloud layer on a grey day, only to break through the clouds to bask in the sunshine. This in itself has always reminded me that when things seem grey or difficult, just a few thousand feet above through the clouds is a brilliant blue sky and abundant sunshine. This drove me to fulfill dreams that were continuous as a child, to fly like a bird.
Naturally, hang gliding was the next step as a young officer full of piss and vinegar. Not to have my ass strapped to two jet engines, but fly through the sky in silence.
I recommend that you begin your adventure into the world of hang gliding with a seasoned instructor as the consequences of failure can be severe, if not fatal. It is called tandem hang gliding. The question that I would have for your instructor or the place where you learn is how many accidents have you had (I would ask this same question if you want to learn to skydive as well). The best answer is zero, I might accept one if they have a long track record.
A hang glider is made of an aluminium alloy or composite frame covered with synthetic sailcloth that are woven polyester fabrics, and composite laminated fabrics. There are generally two types of gliders, topless gliders (no kingpost) and Rigid wing gliders that have a king post that supports the wires that are supporting the wing. Speeds in a glider are generally between 20 – 80 MPH (miles per hour) with a good glide speed at about 35 MPH.
One of the measures of performance of the glider that the pilot should be aware is known as the glide ratio, for every X feet (meters) of vertical height the glider will fly Y feet (meters) lateral; 1:15 means for every foot of altitude, the vehicle (glider) will glide 12 feet laterally. Today 1:15 and 1:20 are more common and rigid gliders have a better glide ratio.
When you hang glide, you fly in a harnesses that supports your body. There are a few different types of harnesses from the pod harness (like a jacket with the leg part behind the pilot). There is a cocoon harness is slipped over the head and lies in front of the legs during launch; a knee hanger harness, and a seated (supine) harness.
The A frame of the glider is called the triangle control frame (TCF) and consists of the down-tubes (left and right bars extending from the point above your head) and the horizontal bar known as the control bar or base bar.
Generally your hang gliding skills are built incrementally as your confidence builds. If you are already a pilot, learning is generally much quicker. You will begin with moving around with the glider on flat ground. When you pick up the glider, you balance it on your shoulders (with the down bar resting on your upper arm where it meets the shoulder) and your hands about 1/3 up from the base bar.
Next are basic launch skills. After you can balance the glider, you must learn to accelerate (walk, jog, run) you run and maintain the proper angle of attack (position of the nose relative to the ground (relative wind), for the engineers and pilots out there it is the angle between a reference line on a body (often the chord line of the airfoil) and the vector representing the relative motion between the body and the fluid (air) through which it is moving). You want to lead with a forward step (on the balls of your feet) and your shoulders. As you accelerate you allow the glider to lift up and the harness line connecting your body to the glider will tighten. In general a light touch is a good thing (like flying a jet). Your grip is normally like you are holding a grape vine (grapevine grip). You allow the glider to support some of your weight as you take longer strides. You want to have a target to aim for in the distance (like having a reference point on land when you are surfing). As you want your head up for Situational Awareness (SA for a pilot is crucial). You will learn to steer the glider as you run on the ground in a straight line toward your target as you shift your weight.
Next you need to learn to flare by pushing the down-tubes forward and up until your arms are fully extended (with open palms for a loose grip), at this point your nose is pointed closer to the sky. Now it is time to go the baby hill and get a feel for basic flight.
There are a few types of launches techniques that include foot-launching from a hill, tow-launching from a ground-based tow system, aerial towing (behind a powered aircraft), powered harnesses, and being towed up by a boat. I have heard of drops from hot air balloons, but I have never observed one.
Normally you will launch on a hill or on a platform extending from a hill. You launch into the wind just like an airplane. Launching with a ramp is the best, but ramps are not as common and you simply have the drop-off of the hill.
Not being in control of the hang glider close to the ground is among the most challenging of situations. Shortly after lift-off you will put your feet and slip your body in a bag helps minimize drag. Drop down low and swing your hips, shifting your weight, use your forearms to control the airframe (TCF)
A glider in flight is continuously descending. To achieve an extended flight, the pilot must seek air currents rising faster than the sink rate of the glider. You need the updraft of the mountains or the thermals of flat surfaces in warmer climates. The thermal rises until it either forms into a cumulus cloud or hits an inversion layer. Once the pilot locates a thermal, he circles within the area of rising air to gain height. There are a 3 general lift with which you should be familiar.
Ridge lift occurs when the wind encounters a mountain, cliff or hill. The air is pushed up the windward face of the mountain, creating lift. The area of lift extending from the ridge is called the lift band. Providing the air is rising faster than the gliders sink rate, gliders can soar and climb in the rising air by flying within the lift band and at right angle to the ridge. Ridge soaring is also known as slope soaring. Mountain waves or lee waves occur near mountains. The obstruction to the airflow can generate standing waves with alternating areas of lift and sink. The top of each wave peak is often marked by lenticular cloud (spaceship) formations. Convergence results from the convergence of air masses, as with a sea-breeze front.
Today most gliders have an instrument called a variometer (a very sensitive vertical speed indicator) which shows visually (and often audibly) the presence of lift and sink.
After you have gained some altitude and you want to accelerate, you normally pull the base bar toward your stomach in order to increase your speed.
You can perform aerobatics with serious practice or glide cross-country for hundreds of miles. Today hang gliders have parachutes that can deploy if you get into a spin or out of control situation. A glider will probably cost $4,000 - $5,000 for a basic beginner glider and the higher tech rigid gliders can be closer to $20,000. The altitude record is over 38,000 feet and the distance record is over 475 miles.
If I were a young man today, I would probably be into flying with jet powered hang gliders and wing suits; who knows maybe someday if I am bored, I will give it a go.