With The Night Mail Part 4

VALKYRIE (racing plane), A. J. Hartley owner, New York (twice warned).

GEISHA (racing plane), S. van Cott owner, Philadelphia (twice warned).

MARVEL OF PERU (racing plane), J. X. Peixoto owner, Rio de Janeiro (twice warned).

_For the Board_:

LAZAREFF } MCKEOUGH } _Traffic._ GOLDBLATT }

NOTES

Notes

High-Level Sleet

The Northern weather so far shows no sign of improvement. From all quarters come complaints of the unusual prevalence of sleet at the higher levels. Racing-planes and digs alike have suffered severely--the former from unequal deposits of half-frozen slush on their vans (and only those who have "held up" a badly balanced plane in a cross wind know what that means), and the latter from loaded bows and snow-cased bodies. As a consequence, the Northern and Northwestern upper levels have been practically abandoned, and the high fliers have returned to the ign.o.ble security of the Three, Five, and Six hundred foot levels.

But there remain a few undaunted sun-hunters who, in spite of frozen stays and ice-jammed connecting-rods, still haunt the blue empyrean.

Bat-Boat Racing

The scandals of the past few years have at last moved the yachting world to concerted action in regard to "bat" boat racing.

We have been treated to the spectacle of what are practically keeled racing-planes driven a clear five foot or more above the water, and only eased down to touch their so-called "native element" as they near the line. Judges and starters have been conveniently blind to this absurdity, but the public demonstration off St. Catherine's Light at the Autumn Regattas has borne ample, if tardy, fruit. In future the "bat"

is to be a boat, and the long-unheeded demand of the true sportsman for "no daylight under mid-keel in smooth water" is in a fair way to be conceded. The new rule severely restricts plane area and lift alike. The gas compartments are permitted both fore and aft, as in the old type, but the water-ballast central tank is rendered obligatory. These things work, if not for perfection, at least for the evolution of a sane and wholesome _waterborne_ cruiser. The type of rudder is unaffected by the new rules, so we may expect to see the Long-Davidson make (the patent on which has just expired) come largely into use henceforward, though the strain on the sternpost in turning at speeds over forty miles an hour is admittedly very severe. But bat-boat racing has a great future before it.

CORRESPONDENCE

Correspondence

Skylarking on the Equator

TO THE EDITOR--Only last week, while crossing the Equator (W. 26.15), I became aware of a furious and irregular cannonading some fifteen or twenty knots S. 4 E. Descending to the 500 ft. level, I found a party of Transylvanian tourists engaged in exploding scores of the largest pattern atmospheric bombs (A. B. C. standard) and, in the intervals of their pleasing labours, firing bow and stern smoke-ring swivels. This orgy--I can give it no other name--went on for at least two hours, and naturally produced violent electric derangements. My compa.s.ses, of course, were thrown out, my bow was struck twice, and I received two brisk shocks from the lower platform-rail. On remonstrating, I was told that these "professors" were engaged in scientific experiments. The extent of their "scientific" knowledge may be judged by the fact that they expected to produce (I give their own words) "a little blue sky" if "they went on long enough." This in the heart of the Doldrums at 450 feet! I have no objection to any amount of blue sky in its proper place (it can be found at the 2,000 level for practically twelve months out of the year), but I submit, with all deference to the educational needs of Transylvania, that "sky-larking" in the centre of a main-travelled road where, at the best of times, electricity literally drips off one's stanchions and screw blades, is unnecessary. When my friends had finished, the road was seared, and blown, and pitted with unequal pressure-layers, spirals, vortices, and readjustments for at least an hour. I pitched badly twice in an upward rush--solely due to these diabolical throw-downs--that came near to wrecking my propeller.

Equatorial work at low levels is trying enough in all conscience without the added terrors of scientific hooliganism in the Doldrums.

Rhyl. J. VINCENT MATHEWS.

[We entirely sympathize with Professor Mathews's views, but unluckily till the Board sees fit to further regulate the Southern areas in which scientific experiments may be conducted, we shall always be exposed to the risk which our correspondent describes. Unfortunately, a chimera bombinating in a vacuum is, nowadays, only too capable of producing secondary causes.--_Editor_.]

Answers to Correspondents

VIGILANS--The Laws of Auroral Derangements are still imperfectly understood. Any overheated motor may of course "seize" without warning; but so many complaints have reached us of accidents similar to yours while shooting the Aurora that we are inclined to believe with Lavalle that the upper strata of the Aurora Borealis are practically one big electric "leak," and that the paralysis of your engines was due to complete magnetization of all metallic parts. Low-flying planes often "glue up" when near the Magnetic Pole, and there is no reason in science why the same disability should not be experienced at higher levels when the Auroras are "delivering" strongly.

INDIGNANT--On your own showing, you were not under control. That you could not hoist the necessary N. U. C. lights on approaching a traffic-lane because your electrics had short-circuited is a misfortune which might befall any one. The A. B. C., being responsible for the planet's traffic, cannot, however, make allowance for this kind of misfortune. A reference to the Code will show that you were fined on the lower scale.

PLANISTON--(1) The Five Thousand Kilometre (overland) was won last year by L. V. Rautsch, R. M. Rautsch, his brother, in the same week pulling off the Ten Thousand (oversea). R. M.'s average worked out at a fraction over 500 kilometres per hour, thus const.i.tuting a record. (2) Theoretically, there is no limit to the lift of a dirigible. For commercial and practical purposes 15,000 tons is accepted as the most manageable.

PATERFAMILIAS--None whatever. He is liable for direct damage both to your chimneys and any collateral damage caused by fall of bricks into garden, etc., etc. Bodily inconvenience and mental anguish may be included, but the average jury are not, as a rule, men of sentiment. If you can prove that his grapnel removed _any_ portion of your roof, you had better rest your case on decoverture of domicile (See Parkins _v_.

Duboulay). We entirely sympathize with your position, but the night of the 14th was stormy and confused, and--you may have to anchor on a stranger's chimney yourself some night. _Verb.u.m sap!_

ALDEBARAN--War, as a paying concern, ceased in 1967. (2) The Convention of London expressly reserves to every nation the right of waging war so long as it does not interfere with the world's traffic. (3) The A. B. C.

was const.i.tuted in 1949.

L. M. D.--Keep her dead head-on at half-power, taking advantage of the lulls to speed up and creep into it. She will strain much less this way than in quartering across a gale. (2) Nothing is to be gained by reversing into a following gale, and there is always risk of a turn-over. (3) The formulae for stun'sle brakes are uniformly unreliable, and will continue to be so as long as air is compressible.

PEGAMOID--Personally we prefer gla.s.s or flux compounds to any other material for winter work nose-caps as being absolutely non-hygroscopic.

(2) We cannot recommend any particular make.

PULMONAR--For the symptoms you describe, try the Gobi Desert Sanitaria.

The low levels of the Saharan Sanitaria are against them except at the outset of the disease. (2) We do not recommend boarding-houses or hotels in this column.

BEGINNER--On still days the air above a large inhabited city being slightly warmer--i. e., thinner--than the atmosphere of the surrounding country, a plane drops a little on entering the rarefied area, precisely as a ship sinks a little in fresh water. Hence the phenomena of "jolt"

and your "inexplicable collisions" with factory chimneys. In air, as on earth, it is safest to fly high.

EMERGENCY--There is only one rule of the road in air, earth, and water.

Do you want the firmament to yourself?

PICCIOLA--Both Poles have been overdone in Art and Literature. Leave them to Science for the next twenty years. You did not send a stamp with your verses.

NORTH NIGERIA--The Mark Boat was within her right in warning you up on the Reserve. The shadow of a low-flying dirigible scares the game. You can buy all the photos you need at Sokoto.

NEW ERA--It is not etiquette to overcross an A. B. C. official's boat without asking permission. He is one of the body responsible for the planet's traffic, and for that reason must not be interfered with. You, presumably, are out on your own business or pleasure, and should leave him alone. For humanity's sake don't try to be "democratic."

REVIEWS

Reviews