Yep, flying off the beach is a kick! We also have a 1000' by 500' strip we have the use of, but the beach is more fun. We use a large piece of carpet laid out to start and tune the engines. Then we are just careful to get them rolling a bit at low throttle before nailing it. No air filters and no problems. We've been doing it for quite a while... I have had a few engines apart after crashes and no evidence of dirt ingestion. We're pretty careful.

AV8TOR