Trevor meets aerospace engineer Sophie Robinson, who's working on groundbreaking eVTOL, electric vertical take-off and landing, aircraft that will change the way we travel in the future. Writer Tony White's inspirational story 'The Hotwells Cold Water Swimming Club’ captures perfectly what Sophie gets up to in her spare time - she’s a self-confessed mermaid! - and the ethical dilemmas she has faced at work.  See acast.com/privacy for privacy and opt-out information.