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Rockoons Long Duration Flight SL1 Rocket and Avionics Sky Launch 1 Rocket and Avionics Rockoon Mission Rockoon Flight Profile Mobile rocket motor test stand Nitrous Oxide/rubber Hybrid Motor 1500 lbf Thrust Test Balloon Testing High Altitude Subsystem Testing

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RockoonsLong Duration Flight


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SL1 Rocket and Avionics

Sky Launch 1 Rocket and Avionics






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Balloon Testing

High Altitude Subsystem Testing

Telemetry and command/control link testing with latex balloons

Zero pressure plastic balloon tests of igniter electronics and nitrous tank


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Rocket ground test

Ground Launch of Hybrid Rocket

Rocket ascended to over 20,000 feet


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SL1 Launch

Launch of Sky Launch 1 Rockoon

Rocket ascended to over 30 nautical miles


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Launched from the North Carolina Shoreline

Rocket ignited at 70k plus feet while 120 miles out to sea


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SL1 rocket

Rockoon Rocket That Made Guinness Book of World Records

Apogee: 36 miles; 14 miles short of our goal.

Record stood for 7 years until broken by CSXT rocket in 2004.


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SL2 on deck

Moving up to larger Sky Launch 2

  • 100 miles from shore in the Gulf of Mexico

  • Sea-launch, like those pioneered by Dr. Van Allen

  • Sea launch greatly reduces risk and liability concerns

  • NASA provided use of ocean-going barge for our first test

  • Ability to reel the balloon straight up vertically out of the box

  • Minimal boat deck area required for medium to large sized balloons

  • Boat speed completely cancelled out surface wind


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BLRV Rocket Glider


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Oil PlatformUtility Boat


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BLRVGround Stationon Boat Deck


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BLRV Launch


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CATS Prize

The Cheap Access To Space (CATS) Competition was established in 1997.

Goal: First non-governmental rocket to put 2 kg to an apogee of 200 km by November 8, 2000.

Our CATS rocket was launched 200 miles out to sea off the Florida coast on October 29, 2000.


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CATS Rockoon Command, Telemetry and Video Downlink Modules


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CATS Rockoon200 miles from shore – 14 foot rocket, 400 pound gondola



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CATS Rocket on it’s way

  • Rocket launched from 75k ft

  • Additional Advantages of Boat Launched balloons:

  • Hazardous Payloads can be flown that would be difficult to fly over land.

  • Greatly increased launch windows due to surface wind cancellation

  • Ability to fly from remote locations without need of land-based ground support


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Boat launches also help prevent theseground-based launch and recovery issues


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Come on up, the view is great!

  • 100,000 feet high, 400 miles to the horizon


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Coverage area of a balloonPropagation map prior to liftoff



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Coverage area of a balloonDigipeater Reception List – (K5IS-11 Texas balloon)


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Long Duration Balloons

  • Polyethylene Zero Pressure

  • If vented, can stay aloft at float altitude for several days with ballast drop each night

  • Expensive to buy

  • - Difficult to make


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Long Duration Balloons

  • Cylinder Balloon (helium or hydrogen filled)

  • Vent at bottom, can stay aloft several days with ballast drop each night

  • Relatively easy to make with a heat sealer

WB8ELK launch of ES-OS cylinder balloon built by NG0X


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Solar Balloons– only Hot Air(one day flight)

  • Can be assembled with Scotch Tape

  • - Inflated with a fan

  • Sun does the rest

  • Can stay at float altitude all day long until sunset

  • Tetroon only takes 3 seams and approximates a sphere

KC8UCH

http://mail.gpacademy.org/~rochter/

Solar Tetroon and Cylinder

http://www.solar-balloons.com


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Long Duration floater flights

  • LATEX Floaters

  • Vent valve in balloon neck

  • Ballast drop

  • - Several hours to 20+ hrs

  • UV degradation of latex will limit time aloft when sunlit

  • Low-tech idea proven out by Dr. Jean Laby:

  • ( tie string to top of balloon to lift ping-pong style valve in balloon neck)


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Long Duration floater flights

  • No vent valve

  • No ballast

  • 20 plus hour flights

  • Standard latex balloons

  • Low free lift

  • Released a few hours before sunset

  • Ascent stops at balloon sunset

  • HiBall Launch Video




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Launched from Huntsville, AL1400 miles downrange in 20 hours

Green = Daytime portion Violet = Nighttime portion


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Long Duration floater flights

Using READY HYSPLIT to predict flight paths for multi-day missions

- Registration required by FAXing in request on your group’s letterhead

- Once registered, can do long range forecasts at various float altitudes

- Can run archived data without registration


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Long Duration floater flights

JANUARY Flight Paths

(72 hours aloft)

Float altitudes:

Red – 45,000 feet

Blue – 60,000 feet

Green – 75,000 feet


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Long Duration floater flights

MARCH Flight Paths

(72 hours aloft)

Float altitudes:

Red – 45,000 feet

Blue – 60,000 feet

Green – 75,000 feet


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Long Duration floater flights

JULY Flight Paths

(72 hours aloft)

Float altitudes:

Red – 45,000 feet

Blue – 60,000 feet

Green – 75,000 feet


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Long Duration floater flights

OCTOBER Flight Paths

(72 hours aloft)

Float altitudes:

Red – 45,000 feet

Blue – 60,000 feet

Green – 75,000 feet


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Long Duration floater flights

NOVEMBER Flight Paths

(72 hours aloft)

Float altitudes:

Red – 45,000 feet

Blue – 60,000 feet

Green – 75,000 feet


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20th Anniversary of ARHAB(Amateur Radio High Altitude Ballooning)

August 11, 2007

Findlay, Ohio

Multiple Launches

http://www.wb8elk.com

Great Plains Superlaunch Conference and Launch

Grand Island, NE

July 6-8, 2007

Conference and Multiple launch

http://www.superlaunch.org


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The Future of Balloon Technology?

Launch Video

http://www.wb8elk.com


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