
In April 1931, Imperial Airways planned two experimental airmails
from London to Melbourne and return.
This was the first official air mail between
Great Britain and Australia.
Letters could be addressed to New Zealand
and were accepted in New Zealand for the two return flights
from Australia.
Carriage between Australia and New Zealand was by sea.
A major reason for the flight was that the Dutch had
already established an
air route from Amsterdam to the Dutch East Indies and were planning
a flight to Australia.
First Experimental Flight
UK to Australia/NZ

The example registered letter is postmarked Birmingham
on 2 April 1931 and is addressed to New Zealand.
The postage rate for the flight was 1s 4d per ½ oz. The letter has stamps to the value of 1s 7d which includes 3d for the registration fee.


The next cover is franked with the required 1s 4d with all three stamps
being GV controls.
It has a different 29 April Sydney backstamp from the first cover.
The first Imperial Airways flight left Croydon Airport (London)
on 4 April on the regular
Imperial Airways service to
Karachi and Delhi.
There were Qantas
services from Brisbane and an
Australian National Airways (ANA)
service from Brisbane to Melbourne.
The plan was to connect these services with Imperial Airways
flying from Delhi to Darwin and Qantas from Darwin to Brisbane.
The schedule was to arrive in Australia on April 20,
but the backstamp shows that Sydney was not
reached until 29 April.
The New Zealand mail was sent from Sydney to Wellington on the Maunganui
from 1-5 May [6].
The Route
Karachi to Darwin
The route from London was by an AW Argosy
via Cologne and Vienna to Skoplje
from where the mail was sent by train to Salonica.
The next stages were by Short S8 Calcutta flying boat from
Salonica to Alexandria where it
arrived on 8 April.
The DH 66 Hercules City of Delhi flew from
Cairo to Karachi on 9 – 12 April and
then from Karachi to Delhi on 13 April where
the mail was transferred to a second DH 66
(the City of Cairo) which flew on to Allahabad [4].

London – Calcutta
On 14 April, the mail was flown from Allahabad
via Calcutta to Akyab.
This cover from London to Calcutta is backstamped at 11.30
on the morning of 14 April and again at 2pm.
The rate from London to India was 1s 0d.

Delhi – Victoria Point
On 15 April, the mail was flown from Akyab via Rangoon to Victoria
Point in Southern Burma.
This postcard was flown from Delhi to Victoria Point.
It is postmarked Civil Aerodrome Delhi on 13 April.
Although there was an overnight stop, apparently the mail for Victoria
Point was off loaded in Rangoon and sent on by surface.
This card has a Victoria Point handstamp on 22 April which is when it eventually arrived there [5].
On 16 April the mail was flown from Victoria
Point via Alor Star in Kedah to Singapore.
The mail left Singapore on the 17th for Samarang in the
Dutch East Indies and then to Sourabaya on 18 April.
Crash at Koepang
The City of Cairo crashed at Koepang (Kupang)
in Timor in the Dutch East Indies on 19 April.
ANA were contacted and Kingsford Smith, with G U Scotty
Allan as co-pilot, flew the Southern Cross from Sydney to
Koepang on 21-24 April.
They picked up the mail and flew it from Koepang to Darwin on 25 April.
The mail was flown from Darwin to Brisbane by Qantas in a
DH 61 Giant Moth on 27-28 April and by ANA
from Brisbane to Sydney on the Avro Ten Southern Sun
on 29 April.
Later on 29 April, mail was flown from Sydney to Melbourne by Jim
Mollison in the Southern Star.
(Three months later Mollison set a new Australia to England
record time of 8 days 19 hours.)
The New Zealand mail was forwarded from Sydney by sea on the Maunganui and arrived on
5 May, 31 days after leaving London.
Return of First Experimental Airmail
NZ/Australia to UK
The flight for London left Melbourne on 23 April with
the mail from New Zealand being sent from Wellington to Sydney on the Ulimaroa on 17 – 21 April [6]
and joining the flight at Sydney on 24 April.

Only 229 ordinary and 106 registered letters were sent
from New Zealand.

One of the registered letters is shown.
It is postmarked Auckland on 16 April.
The cover carries 2s 6d postage including two GV 7½d stamps
perf 14 x 14½, the rarer perforation!
The postage is made up as follows: 2s 0d air mail
to Great Britain plus 2d ordinary postage and 4d registration fee.
The surface rate and registration fee had been increased on 1 March, 1931.
(They were reduced back to 1d and 3d respectively on 1 June 1932.)
The cover is backstamped 21 April in Sydney when a special cachet was
applied.
There is no UK backstamp despite the cover being redirected. (No doubt in an attempt
to get a backstamp.)

to Karachi
The second cover from New Zealand is addressed to Karachi.
The airmail to India was 1s 3d plus 2d ordinary postage.
It arrived in Karachi on 5 May, but was not backstamped
until 6 May.
The cover has Kingsford Smith’s signature (although it
appears to be a fake).

under-franked

The next cover is only franked with stamps to the value of 9d which
was the cost of sending a letter from New Zealand via the
Karachi – London airmail (7d air mail plus 2d surface).
and far less than the cost of the flight from Australia.
However, it has the routing instruction via Darwin Australia
to England Air mail Service and as it has the special Melbourne
cachet on the back, it appears to have been flown on the experimental airmail.
The route
The New Zealand mail was carried by
Australian
National Airways from Sydney to Brisbane on the
Southern Sun on 24 April
and then by Qantas in a DH 61 from Brisbane to Darwin,
on 25 – 26 April.
The plan had been
for the Imperial Airways DH 66 to fly the mails from
Darwin, but as it had crashed at Koepang on the 19th and
Imperial Airways had no replacement aircraft,
Kingsford Smith and Allan, who had arrived in Darwin from Koepang
on the 25th, flew the mail from Darwin to Akyab in Burma on
27 April – 3 May.
At Akyab, the mail was
transferred to the Imperial Airways DH 66 City of Karachi
on 3 May and flown to
Delhi, arriving on 5 May.
From Delhi it joined the regular Imperial Airways
flight to London where
it eventually arrived
on 14 May, 27 days after leaving New Zealand.
Official covers

Official covers were available in Australia, but none are known from
New Zealand.
A cover, posted in Sydney, is shown.
The special flight cachet is on the back.

Part of the inscription on the cover is obscured by the stamps and
reads: “ALL THE WAY BY AIR” Royal Mail Service from Australia.
The cover has the full set of the
Kingsford Smith commemoratives
which had been issued a month earlier on 19 March.
Given Kingsford Smith’s part in the flight, their use is
particularly appropriate.
Imperial Airways also produced an official cover and it was
used both for flights to and from Australia.
The shown cover is postmarked Darwin on 26 April and
was flown (27 April – 3 May) on the first part of its journey
(to Akyab) by Kingsford Smith and Allan.
Picking up mail
Mail was picked up along the route.

a) at Rangoon
This cover is postmarked Rangoon 28 April and
was flown from there to Akyab by Kingsford Smith on 3 May.
Later on 3 May, it was flown from Akyab to Calcutta by
Imperial Airways in the DH 66 City
of Karachi.

It has a First Airmail purple cachet that was applied to
all mail that was picked up from or delivered to Rangoon.
The cover was backstamped on arrival in London on 14 May.

c) at Calcutta
The next cover
was flown from Calcutta on 4 May,
and is addressed to the UK.

It is backstamped Huddersfield on 15 May which fits in
with the arrival at Croydon airport on 14 May.
The cover was produced by Stephen Smith who was responsible
for many covers from India in the 1930s.
His signature is on the back.

b) Calcutta to Delhi
The next cover was also flown from Calcutta,
but only as far as Delhi.
The red cachet on the front is unclear but states:
First Air Flight / Australia – England / Delivery / Delhi 4-5-31.
However, the plane was behind schedule
and was flown from Calcutta to Allahabad on 4 May and
from there to Delhi on 5 May
as shown by the Delhi backstamp.
123 covers were carried on the Calcutta – Delhi leg.

d) Allahabad to Delhi
The next cover was flown from Allahabad to Delhi.
It was postmarked in Allahabad on 2 May 1931 and was flown from Allahabad
to Delhi on 5 May.
It was not backstamped.
The red cachet on the front was applied in Delhi and states:
First Air Flight / Australia – England / Delivery / Delhi 4-5-31.
However, the plane was behind schedule
and so was not flown to Delhi until 5 May.
Second Experimental Airmail

UK to India
The second experimental airmail left London on 25 April and
was flown on the regular Eastern Route to Delhi arriving on
4 May.
The total mail for Malaya, Australia and New Zealand was 5000.

The DH 66 Hercules City of Karachi had
arrived in Delhi on 5 May from Akyab with the mail from the
return flight of the first experimental airmail.
The mail was exchanged and the City of Karachi immediately
returned that day (via Allabad) to Calcutta.
This cover is franked with 8d and was flown to Calcutta where it arrived
on 5 May and was backstamped at 7am on 6 May.
It is addressed to Stephen Smith, a well-known aerophilatelist, and
I think that he applied the purple cachet.

UK to New Zealand
The mail was flown from Calcutta to Akyab on 6 May and
was then flown from Akyab to Darwin from
6 to 11 May by Kingsford Smith and Scotty Allan in the
Southern Cross.
(Akyab – Rangoon on 6 May, to Alor Star on 7 May, to Singapore on 8 May, to Sourabaya on 9 May,
to Koepang on 10 May and to Darwin on 11 May.)
From Darwin it was flown to Brisbane
on 12 -13 May in a DH 50 by Qantas and then by ANA
to Sydney on 14 May in the Southern Moon with
P G Taylor as pilot.
Sydney – Melbourne was later on 14 May on the Southern Sky.

This cover is postmarked in London on 24th April and is addressed to New Zealand.
It was flown on the second flight and
the postage rate was again 1s 4d.
The cover was offloaded in Sydney on 14 May where it was backstamped
and sent to New Zealand by sea.
The mail arrived in Wellington on the Maunganui on 18 May, 23 days after leaving London
and this cover is backstamped in Christchurch on 19 May.
Return of Second Experimental Airmail

Return flight, acceptance from New Zealand
There were 266 acceptances from New Zealand for the second
return flight and they were sent from Auckland to Sydney on the Maunganui on 8-12 May 1931 [6].
The cover is postmarked Christchurch on 6 May.
As with the first return flight, the postage rate was 2s 2d made up of
2d ordinary postage and 2s 0d airmail fee.
The flight left Melbourne on 15 May and the New Zealand mail joined
at Sydney on 16 May.
The Melbourne – Sydney – Brisbane leg was flown by ANA in
the Southern Sun with Jim Mollison as pilot.
Qantas flew the leg from Brisbane to Darwin on May 17-18.
The pilot was Hudson Fysh in a DH 50.
He was Managing Director and co-founder of Qantas and
this was the last time he flew a scheduled service.
The cover has his autograph.
By this time, Imperial Airways had
purchased a replacement DH 66 and it flew the leg from Darwin
to Delhi (May 19 – 26).
The mail arrived in Singapore on 22 May where the DH66
remained overnight.

Singapore – Alexandria

This cover is postmarked 21 May and was flown from Singapore
on 23 May.
It is addressed to Alexandria in Egypt
and has a Cairo backstamp on 30 May and an
Alexandria backstamp on 31 May.
It is re-addressed to London to where it was presumeably
carried by surface.
As well as the ordinary Singapore postmark, a special backstamp
was applied in Singapore.

Unfortunately, in this example, it is largely obscured
by the Alexandria backstamp of 31 May.
However, it is possible to make out the date of 22 May
together with the slogan Imperial Airways Ltd London – Australia
Air Mail on four lines.

from Alor Star
The next cover is postmarked at Penang on 21 May and
joined the flight at Alor Star which was
reached on May 23.
It is addressed to London and has franking of 48c while
the previous cover to Egypt only has franking of 37c.
The mail connected with the scheduled flight from Delhi on May 27
and was flown to Cairo where it arrived on 30 May.
The route from Alexandria on May 31 had
recently been changed and
was now by Short Kent flying boat to Genoa where it
was due to arrive on June 1.
However, the flight was delayed for two days in Corfu [4] and so it
was June 3 before it arrived in Genoa.
The mail was sent by overnight rail from Genoa to Basle
and then flown to London where it arrived on 4 June [3, 4].
That corresponds with the Sutton Coldfield
½d paid mark of 5 June on the cover from New Zealand.
Anniversary

The 50th anniversary was commemorated in 1981 by the issue
of two Australian stamps depicting a
1931 stamp issued to commemorate the
flights of Charles Kingsford Smith. However the 1931 stamp had
nothing to do with the Australia-UK airmail. It was
issued on 19 March 1931, i.e. before the airmail flight took place.
All scans were made by the author.
Information on this page is taken from:
[1] Airmails of New Zealand, volume 2 (1986) compiled by
Douglas A Walker
[2] The New Zealand Airmail Catalogue, (2nd Edition, 1994)
by James Stapleton.
[3] The Postal History of British Air Mails,
E B Proud, 1991.
[4] Aircraft Movements on Imperial Airways’ Eastern Route,
Vol 1, 1927 – 1937, Peter Wingent, Winchester 1999.
[5] The 1931 Imperial Airways experimental airmail flights, E. Wolf,
Imperial Airways Gazette, Issue 30, pp 2-18, December 2006.
[6] Evening Post Wellington 1916-1945, Papers Past,
available at: paperspast.natlib.govt.nz/cgi-bin/paperspast