Fail safe mode

[Andy Meade]

Ballistic recovery chutes are becoming en vogue again for larger multirotors, it seems.

For the slope, I set my airbrakes out and left rudder. Never had fs trigger on anything as yet though (touch wood!).

[Chris Walby]

AM "Ballistic recovery chutes " as if we don't have enough dangerous components in the models already, why not add a "air bag" type charge !...Gives a whole new meaning to failing a range check...large bang and little model left... that will be a fail then.

Seriously I was reading an AAIB report on a gilder accident that had a ballistic charge that had not been operated and it gave the emergency services quite an issue during the recovery process.

PS might have saved my model (all up cost £80), but only if it opened in less that 50ft!

[J D 8]

I was involved in the early days of microlights in the 70's and one balistic chute system being developed at the time was deployed by a large spring that threw the chute out into the airstream.

A smaller model version could be developed I should think.

[The Wright Stuff]

Posted by Jon Harper - Laser Engines on 17/09/2017 12:28:24:

2. the slowly turning prop will slow the model down more than a static one so impact speed is reduced, even if only a bit.

Hi Jon, this is counter-intuitive: do you have an explanation, or source? I'm not arguing with you, just genuinely interested.