What is the BACAR5 going to do this year?

We will approach at least 10 schools, of which one will be in the Freestate, one in Gauteng and six in Secunda area then suggestions for two more will be evaluated. The format of the school interaction will also adjusted with the learnings from last year.

This year we have to demonstrate our capability to flight test satellite payloads in the near space.

This year we will do at least one very lightweight floating balloon with the aim to fly over Australia, the balloon will depict the ZS6SRC logo, the BACAR logo and a Springbok rugby jersey :-)

Please send other ideas for evaluation to me.




The two major HAB directions

He says the following: Your first decision is what you want to do – photos from the edge of space or ride the Jetstream.


(1) Straight up, burst, down, latest, short flight (hours), very high altitude, video camera, GSM, etc, etc. Get nice 30000m edge of space photos and video. For example http://qrp-labs.com/flights/stella4 and is used very often by other hams.


(2) Very lightweight, cheap, mylar film “floater”, a long flight around the world maybe at 10000m that can go all the way around the world and last for weeks and months. Current hardware is a party balloon, assembled PCB=1.5gm, with battery and solar and antenna maybe 10gm total. This is custom made and not really “commercial” yet.


I have seen photos of both on his website and he has a good relationship with me so I’m sure we can twist some arms. Just remember these are lightweight implementations of his Ultimate 3S beacon kits, of which there are several in the country already. So if you want to decode / play / test / we can help.

BACAR 5 – Send your ideas

Therefore the approach this year would be a request for ideas from your side in terms of balloon payload experiments – be it atmospheric and weather science, biological science, physical science, computer science, data logging, amateur radio development, remote imaging, rocketry etc. etc. etc.

Please send your wildest ideas I will keep a log of the ideas and discuss it with the core team during the first week of Feb.

Please try and use the following headings when you send your ideas to me.

Idea Name:

Short description (Two paragraphs include drawings):


Can you get sponsorship for the cost:

I am really looking forward to your ideas.

1st Mpumalanga and BACAR4 conference

The 1st Mpumalanga and BACAR4 conference will be conducted on 28 November 2015 at the Highveld Sail Club conference facilities at Trichardtsfonteindamonspanningsoord.

Flight prediction 20150930

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The seedpod completed

Some seeds will fly on the BACAR3 mission

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Flight prediction if we launched on 19 and 20 September :-)

Some predictions lets how the winds change until launch on 3 October 2015 05:00 Z

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Method for attaching the payloads in a train


The payload frame is cube sat 1U size

Four pieces of very strong string 1,5 mm nylon braid is used through the holes in the payload frame

String length is Min 1.0 m and max 1.5 m

The payload rests on the bottom four key-rings

You may insulate the payload any way you find suitable

Preferred mass is 300g absolute max is 500g

Payloads will be attached in the train in descending weight.

Evander High School

Lectures at Evander High School and one of the learners practicing to assemble the 1U cube frame.

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