Hi Mark, Any thoughts on the obvious progression of what you have done so far as far as higher speed boating is concerned... ie hydrofoils? MW
On 30 Dec 2013, at 21:27, Mark Hanson wrote: > Hi Folk's, > Jerry made the www.evalbum.com/2749 cat that I added the electric guts to, I > took a 9.9hp johnson & put an Etek-Rt on at 48V with 100ah of T-Sky LiFePO4 > for a max speed of 7mph for about 5 hours or 35 miles. The displacement hull > type cat is the most efficient for HP (like ocean going ships) but must stay > at or below the hull speed that's 1.3 x the square root of the hull length. > At 18 feet it's about 7 mph. > So you can't H2o ski behind it so I ended up selling it on Ebay to a guy in > Wisconsin & bought a aluminum 1200lb 6.5 x 16' Starcraft and put a > www.hondamarine.com lean burn BFP60 on and H2o slalom-ski for about 6-8 hours > using 5 gallons of gas (instead of 20gal like most fiberglass 3600lb > glug-glug boats). There's electric speedboats made in Europe I found but + > $30k and run like a bat out of hell for 30 minutes H2o skiing. Essentially > you have a gallon of gas stored in batteries and plowing through the water > with a planing hull is not an efficient process. The best hull is a Cat for > electric but is you want to H2o ski or get around a large lake quickly the > best set-up is a lightweight alum hull with a lean burn Honda or similar. > Best regards,Mark in Roanoke, VAwww.REEVAdiy.org RE & EV's community service > _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
