The Hurricane Pocket Manual by Martin Robson

Author:Martin Robson
Language: eng
Format: epub
ISBN: 9781844863051
Publisher: Bloomsbury Publishing

TESTS TO BE MADE TO DETERMINE THE OPERATIONAL CHARACTERISTICS OF HURRICANE AIRCRAFT.

From:- 111 (Fighter) Squadron, R.A.F. Northolt.

To:- Station Headquarters, Northolt. (Copy to F/Lt. BULMAN for information. Delivered by hand.)

Date:- 21st February 1938.

Ref:- 1113/93/Air.

Further to my letter 1113/93/Air dated 14th January 1938, the following additional characteristics of the Hurricane Aircraft are forwarded for information.

Flying Characteristics.

These reports are not yet complete and further information will be forwarded as soon as experience is gained.

There is no alteration to the remarks in the original Report.

Instructions have been received that officer Commanding 111 (F) Squadron must carry out aerobatic Tests in the Hurricane and these have been done from time to time.

The Hurricane performs all aerobatics in a normal manner. A loop being started at an indicated air speed of 250 miles per hour at 5,000 feet. At a slower speed than this the aircraft stalls in an inverted position and half rolls right way up.

The slow roll is commenced at an indicated air speed of 200 miles per hour at 5,000 feet and the aircraft rolls accurately in either direction.

The roll off the loop is started at an indicated air speed of 260 miles per hour at 5,000 feet and the behaviour of the aircraft is normal.

NOTES. (1) It is anticipated that inexperienced pilots may take considerable height to recover from any mistakes they may make in aerobatics, and it is recommended that aerobatics should not be commenced below a height of 5,000 feet from the ground or when this is obscured a height of 5,000 feet from the top of the cloud layer.

(2) At the speeds required to perform these aerobatics the aircraft approaches other aircraft very rapidly and it is considered that aerobatics should not be done in conditions of bad visibility.

(3) With the speed and weight of this aircraft it is more essential than ever that control should be treated in a delicate manner.

(4) At these speeds there was no tendency for the pilot of the aircraft to “black out”.

When travelling at speed these aircraft reset considerably to very bumpy weather conditions and in this unit pilots slow their aircraft down to a speed below 150 miles per hour when flying under these conditions.

2. (ii), (iii), (iv), (vi), (vii) and (viii).

No furher remarks, but information will be forwarded as it becomes available.

(v) As more pilots have now had experience of night flying the remarks contained in the original report are confirmed.

Tests have now been made to determine the efficiency of the landing lamp. These tests included taking-off and landing on an aerodrome completely dark except for the neon Beacon situated on the top of one hangar. It was found that the beam of the landing lamp as at present fitted exactly cut the exhaust flame which might cause difficulties to an inexperienced pilot. These lamps have now been trained further outboard and a fuller report embracing the views of all the pilots in the Squadron will be forwarded when all pilots in the unit have operated from a completely dark aerodrome.

In

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