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Ref.:
CO 537/1427
THE NATIONAL ARCHIVES
restrictions. Further information is given in the enclosed Terms and Conditions of supply of National Archives' leaflet. Please note that this copy is supplied subject to the National Archives' terms and conditions and that your use of it may be subject to copyright
1
00174
11.
III
IV
CATURES
Ping Shen lies in a wiley running `N.N.E. to S.$ a
The valley
is bounded o: ita southern enda by ranges of high hills on both sides. These kills are up to a height of 900 fest at 2.000 yaris from the proposei omtre line of the main rummy on the ast side of the strip est side and are 703 fest at 3,000 yards from the centre line on the of the strip. The loontion is shown at point I in Appendix A.
he
The Southern approach ru a through a valley at the entrance of which is a nåll know as Castle "bak. Castle eak is 1,600 feet high at approximately 2.00. yarus from the contre line an. 1,000 yarus bouth of the southern end of the proposed civil runway. The whole androschi is bounded by very high hills anu is most undesirablo. This is shCUTA very clearly in the ma- at Agrendix B of this report. The ortrom aproaches of ing an are clear an: free from obstruation. proposed subsidiary rumay at flag han is situstei N. of the mil rumaj an runs Ñ,l,#, to 5.0, M, aa, althou h the M1.8, an roaches are clear escent for one small hill, the G.E. aproachos are very bas run:âng into a range of hills of 8., feet at a proximtaly 6,00. yarus from the aw of the strip. lacidentally this ruway is the only suleiviary possible for ling loan and is one that meteorological recoris sbor is not necessary.
Dea ay lies to the i. of 1ng than along the cost u is in doated at point 2 of appendix It gives very good apʻrnahes from the 4., there being no obstruction in the flightway - The 1, apprONGİ OB are, however, complicated by a range of idlls at 5,000 yarız riuân, up to 800 feet. This hasar. would be considerably lessened is a right hand circuit were used when landing ". to 4. suballiary ruway oculi be constructed at Dem Pay over a period of time on reclaimed land. this rurmay would run 3.5. to 5.4, and would give good #Kroaches from both enia. The wind coverage from these two ruways at
ay would be sufficient for all the year round operations.
ON ALIGEN ONI ZMATERN
while both sites are far from lucal the othem ayrronches to
ing Soan flanked on either siue ly high hills, are extremely unpleasant
in ideal conditions and woulu bocome very dangerous in coalitions of low oloui, thus prohibiting safe and regular schedule. services.
#!?
In the event of an over-shoot whilst using this direction. aircraft munt "ass around the hills on the size of the strán ani completely lose sight of the rummy until apprmohing soross wini again. This is a disadvanta e in goal weather but witì. a clouì base of 700 feet such as is fregantly experienced in this area at certain timon of the year, would be a ver hasartioun unertaking indesi. The only alternative bau woather procedure is for the airgraït to cli::b straight ahead on an over-shoot, procesi out to sea and let down through aloi at soa. akiitional drawback at bing han is that although the wins are likely to be canalisaŭ throw the valley there will still be a cortain amount of cross wind an. consiuerable turbulence can le anticipate. ugjer these onditions.
at the Deep Day site the approach from the ......, witich will be the one normally uớu în bầu woather, is completal; open an. an over-sixxıt
erely entails a normal left han: oirouit, staying below the alous base and in sight of the airfield all the tize,
DICH, CHUKES
There is a considers...te divergence of opinion as to the mai.. winu direction prevailing in this arm. This is boosuse most of the observations are made at the observatory in Hong Koni falagu, and that the winds in this area, due to its topographical nature, are likely to be localiasi. However, in the main the prevailing wind would appear to
Abo
2
Cms
Ref.:
CO 537/1427
THE NATIONAL ARCHIVES
2
restrictions. Further information is given in the enclosed Terms and Conditions of supply of National Archives' leaflet. Please note that this copy is supplied subject to the National Archives' terms and conditions and that your use of it may be subject to copyright