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Yes, if you are on land and your observations are correct and your time is correct and your charts are accurate and you have a good instruments you should be dead on. However, the whole purpose of that instrument is to let you know where you are when there are no landmarks available to the...

One very good reason for teaching this is the vulnerability of our satellites in orbit. Its also a good discipline to understand the basic function of electronic navigation as they are based on the same principle. And for the record a sextant is a different instrument then a transit. The...

Of all the high temperature rotating equipment I have been around they all used metal for couplers. I think with your machining skills you could easily make one they are designed for expansion and will accept slight misalignment of the shafts. The only polymer ones used were on lower...

You might consider trying to locate the winding diagrams if possible. Would give you a head start. Ac motors require a method of starting in singe phase operation which can be either start windings or capacitors. You would get better performance if the windings were working together. A rotor...

I know of at least one commercial boiler made of stainless. It is still in operation. Went in to a facility that supplied starch product to a major brewery. However, you still have to maintain could water treatment same as all the other boilers in existence. It is however a costly material...

I looked at the burner configuration. There is no way it could not choke. Not enough clearance to the furnace top. Probably would work very well if the nozzles were turned 90 degrees toward the stack. I suspect if it was modified to be larger and placed in a short venturi the gases would act...

The simple answer is no. You would reduce the safety factor by over half. ( If there is one). Here is a simple explanation. The simple formula for calculating the stress in a cylinder not including other factors is wall stress S is equal to the Presure times the inside radius divided by the...

Ok, that definition makes sense but I have operated turbines where the throttle valves were split into as many as four sections so that the wheel actually saw a fairly high proportion of nozzles to the blades on the wheel. Never thought about the percentage. These valves worked together. You...

I have read your comments and would kindly ask for what you consider the definition of partial admission. Most of my experience does not deal with that term and converging diverging nozzles are delt with in terms of Mach numbers with consideration of choke flow. In general flow through turbines...

k2 There are three types of pumps you are asking a question about. They all require a clearance tolerance. The oil pumps are displacement pumps. Each gear revolves in opposite direction so the space between the gears is capturing the fluid and delivering it to the exit chamber. The contact...

I thought I would give my two cents worth on dust collection of having spent most of my career dealing with dust collection systems of all sorts out of necessity. I will start with particle size and ignore its flammable characteristics a criteria essential in dealing with something like grain...

adjusting back gears from south bend manual for 9, 10k, 10 and 141/2 only 1. Engage back gears using eccentric shaft lever and allow mating gears to bottom. Then back off back gears until you feel a slight rock between mating gears and tighten screw set screw( on housing by handle) Tighten...

Have worked on several big ones burning wood. Type of wood and moisture is key to how they perform. Also ash fusion temperature will make a big difference. Can cause clogging of grates. Grate is similar to coal but combustion gases are a lot higher in moisture. This causes higher efficiency...

I have been helping someone with using a servo like you describe with the mechanics for a different purpose. Numerous problems with powering from the arduino. I did not do the programming so cant speak to that. I think there are probably better ways to mechanically design a system for your...

As a side note if you were the one growing the corn you would shell it and burn the cobs. They were stored in a small shed appropriately named the cob shed. The old hand driven corn sheller tore the kernels of and spit the cob out of a chute on the bottom. Corn would usually go to the...

You have done some excellent work. It is impressive because its difficult to go from a design to a working model. What is impressive you have the numbers to go with it although I tend to use imperial because I grew up with it. One question I have and its purely theoretical has to do with the...

I have looked at Mr Hansen's design very closely. Its not the injector but the fuel delivery system and how the fuel is controlled by the injector pump with the throttle. He showed how he tested the spray pattern and the amount. However, I am of the opinion that controlling the flow is more...

I once looked very closely at nozzle and droplet size. Specifically for fuels you need a liquid mass of some amount because vapor alone can not give enough mass for the energy that is delivered. The smaller the sphere the more surface area is available for the chemical reaction and it goes...

Grain is moved by elevator buckets, but on the horizontal moved by screws, they can be a very dangerous system to be around. In waste treatment plants you can often find Archimedes screws. Spiral fluted pumps are used to compress products to a higher pressure. The spiral narrows at the exit...

You can change pressure angle of all the gears are made to the same pressure angle. But you cannot mix and match. But if these gears are used for timing purposes then switching from imperial gear to a metric gear could cause issues.