NavList:

Here is an acceptable hardcover Martelli tables (1916) copy for $18

http://www.amazon.com/gp/offer-listing/B001218AAS/ref=sr_1_3_cp_1_main_olp?s=books&ie=UTF8&qid=1356283260&sr=1-3&condition=collectible

I will be keeping my eye out for a hardcover Martelli in good condition to round out my library.

Greg Rudzinski

[NavList] Re: Martelli's Time-Sight Tables
From: Hewitt Schlereth
Date: 23 Dec 2012 08:49
Golly, Doug, I didn't think I had ordered Amazon's last copy. Going to A just
now it looks like there are a couple of copies of the paperback I have for
$10, and another old-fashioned looking hardback for $100. To find them you
have to enter most of the title, Short, easy . . . Just entering Martelli in
the search box doesn't cut it.

I'll be interested to hear the physical details of yours when it arrives -
from India! What a world we live in!

Merry Christmas,

Hewitt

Sent from my iPad

On Dec 23, 2012, at 7:51 AM, Dwmacpherson2000 <dwmacpherson2000---com> wrote:

> I ordered a copy from India by way of ABE books online. I will let you know how it turns out.
>
> Doug
>
>
>
> Sent from my iPhone
>
> On Dec 22, 2012, at 7:12 PM, Hewitt <hhew36---com> wrote:
>
>>
>> I ordered this book from Amazon and it came yesterday. Full title is
"Short, easy, and improved method of finding the apparent time at the ship."
>>
>> It's a trade paperback, and I have to say Hewlet-Packard made a nice
job of it. The signatures are stitched, so they shouldn't come loose. The
only shortcoming with my copy is the print on page 42 and pages 44 thru 47 of
Table V is light (but still quite legible).
>>
>> The tables are I thru VI and the method takes them in that order.
What you end up with is LHA expressed in time units, so you have to convert
to the angular units we are used to- 1 hour = 15*, 4 mins = 1* ...
>>
>> After working through his English example (the same data is used for
directions in French, German, Italian and Spanish), I ran the example through
my HP 35s using the sine/cosine formula and it gave an answer 1.0' less than
Martelli.
>>
>> Then I tried M's table with Greg's 12-17 time sight and again the difference was 1.0'.
>>
>> My 1972 Bowditch noted that Martelli's method was still popular.
Having been an active navigator then having tried it now, I can see why.
There are 6 tables, but they are short and logical. In neither of the cases I
tried did I have to do an interpolation.
>>
>> My one cavil is to wish M had set out the formulas he used. I have
the same gripe about the Concise SR table in the NA.
>>
>> Net of everything, though, Martelli's book is an agreeable stocking stuffer for myself.
>>
>> Hewitt
>>
>>
>> Sent from my iPad
>>
>
>
>

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