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care when sliding the fabric across the ground to avoid causing damage.
All balloons have an even number of load tapes. By using the number on the load tape when spreading the envelope, the envelope can be arranged in a proper position for inflation. With one crewmember on each side of the envelope fabric, start at the mouth and travel the length of the appropriate load tape, pulling the fabric taut up to the equator. This allows the bottom to be laid out flat. Be careful to handle only the load tapes when positioning the envelope because pulling on the fabric could cause damage. Holding a load tape and flapping up and down gently helps avoid tears and other damage while spreading the envelope. This action traps a small bubble of air which floats, rather than drags fabric and keeps the balloon cleaner and easier to pull. [Figure 6-11]
Check the deflation system at this time and properly position it in accordance with the balloon flight manual. While the envelope is filling with air, the crew can assist the process by lifting upward on the load tapes, allowing more cold air to pack the envelope. This method allows the envelope to deploy smoothly and easily, even with a small inflation fan.Strip Layout
When inflating on pavement or a small or narrow launch site, many pilots prefer not to deploy the envelope on the ground. Instead, they prefer to pull the envelope straight out from the basket, making sure the top gore is on top its full length, and to inflate the envelope entirely with the fan. This may require a larger fan, depending on the size of the balloon and envelope material. [Figure 6-12]
Once the balloon is stretched out, ensure the control lines (deflation, cooling, or rotating) are correctly attached to the
6-12
Figure 6-14. Determining correct inflation fan placement. Note that the strips of tape are generally pointing into the mouth. In this case, the pilot would do well to incline the fan slightly towards the right side of the mouth, in order to better “seal” the envelope opening, and get a more efficient inflation.
Figure 6-13. Placement of the inflation fan.
back to allow the airflow to “seal” the throat. This allows the most efficient use of the fan.
A method pilots use to determine the best placement of the fan is to attach small pieces of fabric or surveying tape on the lower portion of the mouth, using safety pins in such a manner as to not create damage or holes. Then, the crew holds the mouth of the balloon open with the fan running; if all pieces of the tape are pointing into the envelope, then the fan is properly placed; however, if any of the tapes are fluttering back out the mouth of the envelope, this demonstrates that the airflow is going into the envelope and coming back out again. This does not allow for a good inflation, and the fan should be adjusted to correct this deficiency. This demonstration should be done without use of the burner, as the pilot may inadvertently cause damage or start a fire. [Figure 6-14]
It is generally better to pack the balloon full of cold air. This makes a tighter mouth, which avoids burning fabric, and the balloon may be less affected by a light wind when it is round and tight. Safety Restraint/Quick-Release
The quick-release or safety restraint should be secured, with little or no slack in the line, to prevent possible damage or injury in the event of a break or premature release. Every major balloon manufacturer specifies the approved method for tying off. Balloon baskets, suspensions, load plates, and burner supports have been destroyed by improper tie-off in light winds. When tying down for inflation, reference the balloon’s flight manual for the recommended procedures and techniques. The use of a safety restraint is a recommended procedure for enhanced safety.Passenger Briefing
Prior to inflation, a pilot should give passengers their first briefing for behavior during the flight and landing. Inform passengers that during the landing they should stand in the rear of the basket where shown by the pilot (based on wind conditions), facing the direction of flight, with feet and knees together, knees slightly bent, and holding tightly to the sides of the basket. They are not to exit the basket until instructed by the pilot to do so. This procedure allows the passengers to see the landing sequence, and is generally accepted throughout the ballooning community. In larger balloons, which usually have compartmentalized baskets, some pilots encourage the passengers to face away from the direction of flight. Either procedure is acceptable, as long as it is briefed prior to flight, and reinforced prior to landing.
The balloon is ready for inflation when the preflight preparation is complete. Excess equipment is stowed in the basket and chase vehicle, and a radio check is completed. Inflation
The inflation procedure takes the balloon envelope from a pile of fabric to an aircraft capable of lifting a load. The pilot’s goal should be a smooth, controlled inflation that does not damage the environment, balloon, or harm the crew. At the end of the inflation, the balloon should be upright, close to equilibrium, and ready to fly.Inflation Styles
　
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本文鏈接地址：Balloon Flying Handbook(79)