LTL HABMM
Issue 2.0
Page 5
Balloon Type
Volume
FAI Class
cu.m.
cu.ft.
Racer 56
1,590
56,000
AX6
Racer 65
1,840
65,000
AX7
The Series 1 and Racer range are smooth 24 gore envelopes. There are several models in the Series 1
range from 70,000 cubic ft (1,982 cu.m) to 310,000 cubic ft (5,100 cu.m). See Figure 1a, 1b and 1c
(Appendix C) for a typical Series 1 envelope.
3.2 BASKET
Wicker is the preferred material for the passenger compartment basket of a hot air balloon because it is
sturdy, flexible and relatively lightweight. The flexibility of wicker helps with balloon landings and
cushions some of the impact force at landing. The basket contains the fuel tanks, instruments, pilot, and
passengers.
Flexible nylon poles, in conjunction with stainless steel cables, located on the upper portion of the
structure transfer the basket load to the envelope attachment points and support the burner assembly.
Basket skids affixed to the floor add rigidity and provide a point of abrasive resistance to the floor.
Sidewalls surround and protect the passengers, equipment and fuel tanks. Single-T baskets have
padded basket dividers or partitions to form passenger compartments. For more details on basket
occupancy see Flight Manual Section 2.1.8.
3.3 BURNER
The Lindstrand Vortech burner is effectively the engine of the hot air balloon. The burner system consists of
burners (two), and fuel lines that carry LPG from the fuel tanks to the burners. The burners convert ambient
air into hot air, which in turn provides the lift required for flight.
The fuel is supplied to the burner assembly through the fuel hoses that connect the fuel tanks to the
burner assembly. The fuel system also provides fuel to the pilot light. The LPG fuel is diverted from the
main supply line at the burner via a pilot shut-off valve. The fuel goes through a vapour converter and
regulator and is distributed through a pilot head. A piezo-electric system ignites the vapour.
The burner coil is manufactured from stainless steel tubing. The fluid rises to the top of the coil and then
descends into the jet ring. The jet ring is equipped with a combination of removable jets and machined
holes.
The main liquid tank valve controls the flow of LPG fuel to the burner, while the main squeeze trigger
valve controls fuel flow at the burner. With the liquid tank valve open, opening the burner blast valve
permits LPG to enter the heat exchange coil where it is vaporised. After exiting the heat exchange coil
through the jet ring in the lower portion of the coil, the propane is ignited by the pilot light.
Summary of Contents for Racer 56
Page 47: ...LTL HABMM Issue 2 0 Page C1 4 Figure 2 Overview of Vortech Double Burner ...
Page 48: ...LTL HABMM Issue 2 0 Page C1 5 Figure 3 Load Tape Repairs ...
Page 49: ...LTL HABMM Issue 2 0 Page C1 6 Figure 4 Overlying Tape Repairs ...
Page 50: ...LTL HABMM Issue 2 0 Page C1 7 Figure 5 Envelope Cable Loop Repairs ...
Page 51: ...LTL HABMM Issue 2 0 Page C1 8 Figure 6 Bowline Knot ...