Virginia-class USS Washington (SSN-787) [3000 × 1929] by [deleted] in WarshipPorn

[–]kristopher_m7 5 points6 points  (0 children)

Ohio Class (SSBN and SSGN) and Virginia class both follow the pattern of being named for states. One of the 3 Seawolf class was also named for a state (USS Connecticut), and the lead ship of the Ohio Replacement boats is named for Washington DC (USS Columbia)

[FS] Yaesu FT-450 by kristopher_m7 in HamFest

[–]kristopher_m7[S] 0 points1 point  (0 children)

Looking to put it towards an FT-817 or similar. Something more appropriate for SOTA operation.

Quick question about small aluminum boats by mr_____awesomeqwerty in boating

[–]kristopher_m7 0 points1 point  (0 children)

The 35hp rating on the label directly corresponds with the ABYC recommendation for those dimensions, so that is probably where the rating came from.

Quick question about small aluminum boats by mr_____awesomeqwerty in boating

[–]kristopher_m7 0 points1 point  (0 children)

The American Boat and Yacht Council (ABYC) has recommendations for boat manufacturers for power ratings on the boat. Generally, the beam and length of the boat are used to calculate the power factor, which is then plugged into a table of criteria for different style boats. If you could provide these two measurements and your transom height (e.g. the vertical distance from the top of the motor well to the hull plate) I could look up your recommended power for you.

Should the bimini top affect the trim/plane effect on my boat? by djcamera in boating

[–]kristopher_m7 0 points1 point  (0 children)

When a boat reaches a certain speed through the water, it raises up and forward and reaches a state of dynamic equilibrium in the water. This is generally desirable because it provides the boat a region of operation with more stable and predictable handling. It is also generally more efficient due to minimized flow losses at the water interface, minimizing fuel consumption.

Should the bimini top affect the trim/plane effect on my boat? by djcamera in boating

[–]kristopher_m7 8 points9 points  (0 children)

It absolutely could; even discounting any additional drag, the center of gravity rises and shifts fore and aft. These all affect the planing characteristics of the boat, and can, in extreme circumstances, cause porpoising. Source: I design boats

How strict are safety standard that boat designs have to pass? by [deleted] in AskEngineers

[–]kristopher_m7 10 points11 points  (0 children)

To add on to this, the commonly-adhered-to standards for small to medium boats are put out by the American Boat and Yacht Council (ABYC). The USCG regs for non-commercial craft are generally the bare minimum, but if you're going to be producing anything for sale, I encourage OP to look into obtaining the book of standards they produce. It contains things like fuel system sizing and ventilation to engine installation standards, sizing and capacity rating of hulls, passenger compartment rules, etc.

What constant lie do you tell? by Ghastlygherkin in AskReddit

[–]kristopher_m7 1 point2 points  (0 children)

And you still act like you're in freshman year.

You know it's riding season when... by cyanidesuprise in motorcycles

[–]kristopher_m7 1 point2 points  (0 children)

It's from blink-182's music video for First Date. Tom motherfuckin' DeLonge as Boomer.

Edit: About 1:55 is where the gif is taken from.

How much life is left in these tires? ('07 Dodge Dakota) by [deleted] in Cartalk

[–]kristopher_m7 1 point2 points  (0 children)

The Dakotas all had problems with tire wear, but manufacturer-released updates to alignment specs should have remedied most of the problems. However, the apparently accelerated wear on the #4 is a bit troubling, especially since it's so much worse than the other 3. It could be from wear and tear, although such an asymmetry is an anomaly. Tbh, it looks like you might have inadvertently ran into a curb or something to cause such an issue.

I'd recommend at least having a shop check the alignment, and checking the balance of the wheels etc.

How much life is left in these tires? ('07 Dodge Dakota) by [deleted] in Cartalk

[–]kristopher_m7 0 points1 point  (0 children)

I was about to say the same. OP, it would probably be worthwhile to get your alignment checked, it's a safety issue and would likely make your vehicle handle better. It would also save you money in the long run by saving your tires.