New-York tribune., 1886-08-13

actually run to 78.563 knots, an average OF 1917
knots per hour, for the 4.5s25 hours required 70
run over the course Her speed asst year over the
sarle course, on the basis that the Hood ana epD
tides neutrazed each other, was 1856 KNOTS per
hour. that her speed this year Was about tlres %
elghths of knot faster than last Tins calcnlatioh
with the tides considered confirms In very gratiiy
ing manner the remarkable speed reported Ior @ tils
vessel in previous years VIXEN some douDtng oies %
thought it probable tDat the speea SHOWN ""' ""0
to the state OF the tide -, -
All of tie second-class yachts which ran ran
over tn = course have been altered during the
year, and the speeds shown may be o anao
ivzed to ascertain if any improvements have
been made. The Radha. which had new Doileis ~
during the winter. Withdrawn at the Ii 81
moment to protect ner deck over tie boilers more
thoroughly The Meteor. which has never Deeh
completed in practical shape until this year, was
entarad hut ran entirely on her course and some
other Yachts entered last year did not enter ms.
The contest for second-cass yachts was pT'c'ca,i
the Inanda. which is the Rival of last year
with hor trunk cabins removed and man dessk
raised TO form flush deck nearly lore a.n a,i aii
The JnConda ran the course assisted by the tull
ebb tide and resisted by the first quarter OF Tue
flood The average assistance from the tide was %
of knot per hour and the actual distance Iun 1
76 IG knots The speed, therefore, duriDg the
3 S94 hours occupied in going over the course "as
on the average l2.o73 knots, AS against lS'noo S'o
knots in 1888. showing gain tins year OF iess ,
than one-tenth of knot. although last year the
blowing engine of the vessel was broken down anu
presumably this year with the changes ~n'c1 dhe
blower increases the power 80 per cent as per
Uaswells rule this percentage represents me Joss
due to the change in the machinery, but II tno
| blower were used only to force the vesseI 10
speed of II knots, could readily have been uohe
with the former machinery, the loss que 10 t ont
change s over one knot per bonr and 2O4i per cent
| of poVeI The changes were made at the sugecs
| ton of the builders of the machinery without tne
knowledge OF the engineer ana consisted III .;nn en-
larnr the cylinders and varying their proportion
| to those approved ten years ago when 80 TO oo
| pou1ds of steam were considered high pressnres
| The enlargement OF the cylinders and changing on
| the proporton simply forced the machinery 10 ne
| operated at II lower steam pressure reduced the
exnans;nn and increased the difficulty of keeping up
| the steam supply. All recent developments IN the
steam en- ginc have been in the direction OF hlghef
steam pressures and greater expansion instead ol
| the contrary The changes doubtless nadc lnc
vessel smarter for short spurts, ana the toni'ho-
dore had expressed himself So confidently thaI an
improvement had been made that some ci HIS nis
| friends incorrectly supposed that he would run
! trnmphantlv through the wnole fleet. ,
| Tho Inanda was run over the course IN 6oOl
| hours Tins meeting enough OF the flood tide to re-
duce the mean assistance from tide To one-thlrd OF
| knot Her actual distance through the water WAS
therefore 7.s3 knots. an average OF llso3 KNOTS
| per honr Last year. when called the Rival. bhe
made . O92 knots per hour. She Therefore lost -
of a knot per hour on account OF the greatly III
creased weight due to the material increase III
| accommodations n loss which would seem 10 haNe
been warranted by the gain effected.
The Oriental had new boilers asi year but was not
| entered as her crcu atng pump would rot furnish
water sufficient 10 condcnse all the steam the
hoiIor would make. She was however. run over
the course making the distance IN a.ios honis.
|
| Inc ~ Lrot per hour. 50 the actnal distance
through the water was 1927 knots. giving, an
average speed of 1899" knots per hour, whlf
is remarkable for yacht OF her size. ihe
stranger Norma. and some other yachts
accompanied the yachts over part OF the course
| The Scutinel AMI : o2ha did not appear
| The high speeds shown 10y the varions yachts even
when the condition of the tide is considered VIII he
| very gratifying to all who are familiar with the
subject II Is to be hoped that another year all
the yachts IN the vicinity will be- induced to JON
| in HE regatta to increase rs interest.
| The writer Is Of the opinion that future develop
mcnts will be more in the directio of lncreas ng
the accommodations of yachts than IN increasing
speed English naval architects have ior many
wears realized that a roOny heavy vessel could he
dr,cn as rapidly as a lighter one Of the same
length. and although they have CARED 'nls 10 al
| eytrcme 10 suit particular conditions requiring
extra engine power which tine heavy vessels were
| well able 10 carry. the experience OF the writer
tends 10 show that reasonable Increase IN weight
| with large increase in accommo iation can he
obtained with at least n very moderate increase OF
engine power CHARLES f. EMERY.
| Ner- Ioyl August - lN~ii.