For Dragon craning, we had pretty big bits of crane which cost serious money – and would be too much for many FF Clubs to consider. And so I was delighted when Richard Blaquiere wrote in from Perth W.A. ….
I’ll try and get a picture of the FF crane at Freshwater Bay. I’ll also get some basic measurements. Height of the boom of the ground, and its length. I did a design of a small ff15 crane for our club, before they built the new facilty. It was very simple, similar to the small cranes they use to lift dingys off large boats. Remember a heavy 15 is 350 kgs. on weight 15 is about 315 kgs. Have a look on EBay for a small material lift, that has SWL (safe working load) of about 750 – 1000 kgs. The material lifts need 240v single phase power. ie stand power point. They all usually have a hand held pendant that controls the up / down of the hook. They are very cheap in Aust. I would think they also quiete cheap in the UK. The design I had done used one of these material lifts. The gantry was made from 150 x 50 x 3 RHS, and the base swivelled on a Wheel hub and a stub axel. All hot dip gal after fabrication.
I’ll see if i can find the sketch that i did.
cheers, Richard Blaquiere
Richard also pointed me at the type of motor that an FF crane would need. I was amazed to see that we’re only talking a couple of hundred pounds. This is what they look like… not large at all.