One distinction that has not been defined is that the request is for "Engineering Drawings", whereas the technical issue is really to get the...
Some real numbers, approximate but with accuracy OK for your original question. This data is fundamental, and works for all size hulls. Solar...
"No free lunch just with the throttle." Is that so? According to my training there is a huge saving in fuel with just the throttle. For...
I consider myself a fairly active retired person, launching my boats frequently from trailers, repairing roof parts on our 1693 house, etc....
Cruising with 4 adults - Electric Javelin
I built a small all electric cruiser years ago, and believe your goals are easily met. I converted a 14 foot O'Day Javelin sailboat hull, a...
I have used common tubing compression fittings, with an O-ring inserted instead of the metal furrel to seal the shafts of a few large model boats....
The data and equations I presented are correct for a displacement speed hull, without towing a net full of debris. The youtube video you used to...
Looks like the manufacturer gets to improve its product at your expense? Did they stand behind replacements? Too bad such an expensive device...
In English Units Draft(feet) = Displacememt (Lb) / (Length(ft) x Beam(ft) x Cb x 64(Lb seawater per ft^3) ), In Metric Units Draft(Meter)...
From Barry: "Not sure what wall thickness you took for the aluminum" I was just answering the original question as presented on the first post:...
"Anyone know? If you have a wood 2 x 4 supported each end spanning 9' alongside an aluminum tube 2x4 (1/8" walls?) spanning 9' and you stood on...
I designed and built the Margaret S (Steamboat) in 2010. Penna. registration was no problem as a powered homebuilt boat. The rules at that time...
Quick and very approximate numbers for displacement craft. Displacement speed (knots) = 1.2 * SQRT( Length Waterline (Feet)) At that speed normal...
I have articulating paddle wheels on my big steamer (paddles constantly change attitude during rotation), with 72 moving joints in the water. I...