[DOC] [TLE] Hot Air Balloon Physics - Real World Physics Problems [PAR] A hot air balloon consists of a large bag, called an envelope, with a gondola or ... 
in the basket and is used to heat the air inside the envelope through an opening. 
... which states that any object (regardless of its shape) that is suspended in a 
fluid, ... With this in mind we can calculate the density of the heated air at a given
... [DOC] [TLE] Airship - Wikipedia [PAR] An airship or dirigible is a type of aerostat or lighter-than-air aircraft that can 
navigate through ... Most airships built since the 1960s have used helium, though 
some have ... typically housed in one or more "gondolas" suspended below the 
envelope. .... This also raised them above the ground, reducing the risk of a 
propeller... [DOC] [TLE] Engineering Fundamentals of Balloons - Springer [PAR] Consider the increase in the upward force if a buoyant gas of volume V is 
injected ... are used, the balloon will float to an altitude at which the weight of the 
balloon .... Main balloon. Shroud. Gondola. Suspended reinforcing curtain. Fig. [DOC] [TLE] Patent US4729750 - Flying toy controllable in three dimensions ... [PAR] Mar 8, 1988 ... A gas inflatable envelope preferably a helium filled balloon is ... (b) a gondola 
suspended from said balloon and having a vertical central axis; .... balloon, 
minimizing sized motors are all that is required to raise the toy .... The flying toy of 
the present invention can be used either outdoors or indoors, if desired. [DOC] [TLE] Could it be possible to launch a rocket from a balloon? - Space ... [PAR] Aug 28, 2013 ... Could a balloon be used as a launch platform for space-bound rockets? ... High 
altitude balloons would suspend large pulleys that are basically ... to use at least 
three and a gondola system that keeps them well separated, ..... this idea: 
launching the Helen 2 rocket from a helium balloon raised at 14.000m. [DOC] [TLE] Balloon - New World Encyclopedia [PAR] Modern balloons can be made from materials such as rubber, latex, ... When 
rubber balloons are filled with helium so that they float they can hold ... Large 
balloons filled with hot air or buoyant gas have been used as flying ... Julian Nott 
designed and built a balloon using woven cotton fabric and a Torta reed gondola, 
both... [DOC] [TLE] The two Explorer balloon missions - an article by Greg Kennedy [PAR] At the time, balloons could fly higher and remain aloft longer than airplanes. ... 
Explorer used two different weights of fabric. ... While the balloon and gondola 
were being built, Kepner and Anderson searched for a launch site. .... With the 
spectrograph suspended 500 feet below the capsule, Kepner and Stevens 
climbed... [DOC] [TLE] LTL - Lindstrand Technologies Ltd [PAR] This Manual has been prepared for the following balloon system: Serial No: ..... 
As an option an internal illumination system can be used with the HiFlyer System. 
.... lifted and the switch raised to the manual position the Helium valve may now 
be controlled manually ... The gondola is suspended from the lower outer side. [DOC] [TLE] HIFLYER BALLOON MAINTENANCE MANUAL [PAR] Even if there are no holes or pinpricks, Helium will still diffuse through balloon 
fabric as ... valves may also be used for purging of the Helium. A top-up hose ... of 
the load ring. The gondola is suspended from the lower outer side of the ring and 
the main winch .... Start winch and raise gondola approx 1.5m (5 ft).  Stop ascent. [DOC] [TLE] Digital aerial images from kites or balloons - Paul Illsley [PAR] Recording digital aerial images from a kite or balloon is actually very simple. ... 
This will increase the depth of field and hopefully reduce blur due to camera ... to 
the top of the container, these were used to create the Picavet leveling system. ... 
Helium has nearly the same lifting potential as hydrogen but is much safer to... [DOC] [TLE] Frequently Asked Questions on Balloon Rides - HotAirBalloon.org [PAR] The gondola is connected to the envelope by stainless steel suspension cables.

Question: Helium or this can be used to raise a balloon from which a gondola is suspended
Answer: hot air