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The Crew Briefing
Crew briefings vary from a few last minute instructions (to an experienced, regular crew), or a long, detailed discourse on how to layout, assemble, inflate, chase, recover, and pack a balloon. [Figure 6-4] A pilot can give crew briefings by telephone the night before, or in the chase vehicle on the way to the launch site, but most crew briefings are done at the launch site prior to the flight. It is important for the pilot to remember who is ultimately responsible for the entire operation and that the crew is the pilot’s representative on the ground.
Whether this is the crewmembers’ first time or one-hundredth time crewing, they should be briefed before each flight. Instructions contained in the briefing may be less detailed for an experienced crew. The following instructions should be given for each flight:
• Estimated length of flight and any information that aids the chase and recovery
• Anticipated direction of flight
• Position and duties during inflation
• Duties once the balloon has reached equilibrium
A typical flight briefing may be “I intend to make a 1 hour flight and I have about 2 hours of fuel on board. From my weather briefing and the pibal, I should travel in a southeasterly direction; but if I go west, I will land before getting to the freeway. I will probably do a lot of contour flying, but may go up to 2,000 feet to look around. Let’s use channel six on the radio. There is a county road map on the front seat.”
“Patricia, you will be the crew chief for today’s flight, as well as the driver. The keys to the van are in the ignition, and there is a spare set in the console. I would like you and Bob to do the mouth this morning. Bob, you will be on the side away from the fan. Pat will show you what needs to be done, and I will double check you during the inflation. You will also be navigating, so we will have a look at the map together in a minute. Susan, you will be on the fan. Be sure to keep people away from the plane of the fan, and please do not move the fan while it is running. Leslie, you are on the crown line today. You have done it before, so I know that you know the procedures, but as a reminder, do not wrap any lines around your hand, arm, or body. I will check with you a couple of times during the inflation to make sure you are positioned properly.”
“Any questions? Good. Sleeves down, gloves on, and let’s go!”
The Crown Line
The duty of the crown line crewmember is to hold the end of the line, lean away from the envelope, and use body weight to stabilize the envelope. As the air is heated and the envelope starts to rise, the crewmember holding the crown line should allow the line to pull him or her towards the basket, putting only enough resistance on the line to keep the envelope from swaying or moving too fast. Release the tension slowly after the envelope is vertical. [Figure 6-5]
6-6
End of crown line
Basket
Figure 6-5. Crew can often stabilize a rolling envelope by taking a single crown line 45° off of downwind and walking directly upwind on stand-up.
Figure 6-6. Double crown lines forming a 90° or wider angle offer the greatest inflation stability provided crew walk them directly upwind on stand-up.
The crown line varies in length. Some pilots let the line hang straight down; some pilots connect the end of the line to the basket or burner frame. Other pilots keep the line only long enough to assist with a windy inflation, or deflation in a confined area. Usually, there are no knots in the crown line, but you might find a type of loop attached to it. Some pilots put knots in their line, or attach flags or other objects. These may snag in trees and cause problems. Lines tied to the basket form a huge loop that may snag a tree limb and should be secured with a light, breakaway tie.
To improve control, some pilots use a double crown line during very windy conditions. This technique, as shown in Figure 6-6, allows for better control of the envelope when winds may be gusting, but still within reasonable flight limits, as may be present in an afternoon launch. Many pilots launch in afternoon winds, knowing that winds generally decrease significantly as sunset approaches. One advantage of this technique is that the balloon can be kept stable in fairly gusty winds, even if held on the ground for an extended period of time. This may be helpful for the pilot who may be doing a static (non-flying) tether, or perhaps during an evening “balloon glow” when winds may remain gusty until well after sunset. Launch Site
When selecting a launch site, factors to consider are obstacles in direction of flight (powerlines, buildings, towers, etc.), available landing sites, and the launch site surface. Location and Obstacles
The launch site is selected based on surface winds and winds aloft, in conjunction with the desires of the balloon pilot. Consideration is given to what type of flight is being made and to the overall goal of the flight. Upon arriving at a particular launch site, most pilots release another pibal to verify the wind direction, and ensure that the forecasts or earlier readings have not changed significantly.
　
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