active

air

aircraft

airplane

amateur

briefing

check

course

crew

equipment

flight

fly

flying

guy

helmet

hobby

instructing

instructor

leisure

lifestyle

light

male

man

member

person

pilot

piloting

plane

preparation

preparing

protection

protective

ready

recreation

regulation

safety

secure

security

sitting

small

sport

team

teamwork

trainer

training

transport

transportation

unprofessional

vehicle

young