Heli A1 Limited The AS 350 BA can carry 6 passengers plus pilot and the McDonald Douglas 500E which can seat four passengers plus pilot. These are ideal helicopters to carry out survey work, providing a comfortable environment to carry out tasks and with Davin’s expertise providing a ‘smooth ride’.Flight following is completed by staff on the ground.Heli A1 Operate a AS 350 BA capable of lifting 800kgs and a McDonald Douglas 500E which can lift 500kg. If required, we can organise bigger lifts on your behalf through associated operators. We can call out on site to discuss your requirements be it lifting fencing gear, water tanks, troughs, building material, stock feed etc.