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Balloon and Parachute

Posted: Mon Jun 13, 2016 5:15 pm
by JonnyAlpha
This is our first balloon flight and I have been researching but could I ask for some confirmation before we spend the last of our donated cash :-(

Target is 30,480 metres (100,000 feet)
Payload was aiming at 750g but now trying to keep it at 500g
Target ascent = 5m/s
Target decent <= 5m/s

Based on the above information / targets, according to my calculations we are going to need a Hwoyee HY-800 balloon and a 3ft RocketMan Parachute.

Am I correct?

Hoping to order tomorrow for a flight next Weds.

Tks

Re: Balloon and Parachute

Posted: Mon Jun 13, 2016 7:58 pm
by JonnyAlpha
Steve Randall
Random Engineering Ltd

Has replied suggesting an 800g balloon and 4ft chute (I was aiming for a 3ft chute) so I will go with that. Also sent a couple of videos on batteries, payload and glue :-)