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Page 2 Airspeed Indicators & Pito tubes

RAF Wartime Airspeed indicators are generic instruments, the aircraft shown in our adds did use the ASI's shown but they may of coarse been used in a different type of aircraft with matching performance for that date. In the case of the Spitfire there was really only the Mosquito that had a similar performance so these indicators are quite type specific. If you are not sure what ASI you require then please contact us and I will do my best to advise you on the most suitable purchase.

Use the links under to navigate the instrument pages

Page 1 Instruments Home       Page 2 Airspeed Indicators       Page 3 Altimeters       Page 4 Boost Gauges       Page 5 Clocks & Compasses  

Page 6 Climb & Descend      Page 7 Directional Indicators & Artificial Horizon       Page 8 Fuel gauges       Page 9 Flap Indicators 

 Page 10 Brake Gauges      Page 11 Oxygen Gauges      Page 12 Pressure Gauges      Page13 Revolution Counters      Page 14 Temperature Gauges 

  Page 15 Turn & Slip       Page 16 Undercarriage Indicators      Page 17 Trim Gauges      Page 18 Volt & Ammeter

Page 21 Instrument Panel, Plate & Label page.

 

Click on pictures to enlarge

250 MPH ASI Type 102 (pg 2 ins ASI Ref 65)

Here is a post-war 250 MPH ASI in good original condition.

Dated 1956

924

Click on pictures to enlarge 

£175

Click on the pictures to enlarge

Sorry now out of stock more wanted please contact me

Spitfire 480 MPH ASI  (pg 2 ins ASI Ref 64)

Here is a 480 MPH used exclusively in the Spitfire MK V onwards and the Mosquito.

 In nice original condition the caps that protect the pipes are still in place.

Dated 1942 most likely fitted to a MK V Spitfire.

MK IX

Dated 1942

Click on the pictures to enlarge

This Mk V depicts BL336 on the morning of 28 January 1942. It was in this aircraft that Tuck was shot down by ground fire during a low-level “Rhubarb” mission.

 It is coded with Tuck’s initials, RS T, which was an honour accorded to Wing Commanders and above.

It also displays his final tally of 29 victories on the fuel tank cover. 

 

Click on the pictures to enlarge

550 MPH ASI MK IXG (pg 2 ins ASI Ref 63)

Here is a 550 MPH ASI used in the Typhoon and Tempest in really good original condition.

MK IXG

Dated 1945

6A/1270

Shown above left and right the stunning Hawker Typhoon armed and dangerous with four 20mm cannons and six 60Lb tank busting rockets.

£320

Click on the pictures to enlarge

£150

 Mk I Spitfire/Hurricane 400 MPH ASI  reproduction (pg 2 ins ASI 62)

This is a superb reproduction 400 MPH  ASI most commonly used in Hurricanes and early MK I/II Spitfires.

The case is an original  case and the face is properly engraved allot of work has gone into creating this superb replica you cannot tell it apart from the original other than the fact it is not luminous. Although these will probably function as the movements are original they are sold for display only and are not calibrated or sold as working.

Click on the pictures to enlarge them.

 

200 Knots MK IXC ASI 1942 (pg 2 ins ASI 61)

 ASI MK IXC  

6A/294 

Dated 1943

Click on the pictures to enlarge them

.

  

£175

Click on the picture to enlarge.

Messerschmitt BF 109 E Pito tube III (pg 2 ins ASI 60)

This is a Pito tube from a BF109 E . The 109 E was used extensively during then Battle of Britain. It is marked as 12 volts. It has sustained damage please see the picture.

Seen above the BF 109 E

£395

Click on the picture's to enlarge them.

£175

340 Knots MK IXE ASI 1944 (pg 2 ins ASI 59)

 ASI MK IXF

6A/585

Dated 1944

 

Click on the picture's to enlarge them.

Click on the picture's to enlarge them.

£275

420 Knots MK IXF ASI 1944 (pg 2 ins ASI 58)

 ASI MK IXF

6A/589

Dated 1944

Most likely fitted to a Sea Hurricane or a Seafire no other aircraft operated with the FAA that had this sort of performance in 1944

 

Click on the picture's to enlarge them.

Click on the picture's to enlarge them.

£275

420 Knots MK IXF ASI 1944 (pg 2 ins ASI 57)

 ASI MK IXF

6A/583

Dated 1944

Most likely fitted to a Sea Hurricane or a Seafire no other aircraft operated with the FAA that had this sort of performance in 1944

Click on the picture's to enlarge them.

Click on the picture's to enlarge them.

£275

420 Knots MK IXF ASI 1942 (pg 2 ins ASI 56)

 ASI MK IXF

6A/589

Dated 1942

Most likely fitted to a Sea Hurricane or a Seafire no other aircraft operated with the FAA that had this sort of performance in 1942

Click on the picture's to enlarge them.

Click on the picture's to enlarge them.

£175

200 Knots MK IXC ASI 1942 (pg 2 ins ASI 55)

 ASI MK IXC

6A/294

Dated 1942

Click on the picture's to enlarge them.

Click on the picture's to enlarge them.

£195

320 MPH MK IXD ASI 1940 (pg 2 ins ASI 53)

Really nice Battle of Britain dated 320 MPH ASI MK IXD 

6A/415

Has a service date of 1943

Click on the picture's to enlarge them.

Click on the picture's to enlarge them.

£195

320 MPH MK IXD ASI 1940 (pg 2 ins ASI 52)

Really nice Battle of Britain dated 320 MPH ASI MK IXD 

6A/415

Has a service date of 1942

Click on the picture's to enlarge them.

Click on the picture's to enlarge them.

340 Knots ASI (pg 2 ins ASI 51)

Mk IXE

Ref 6A/1294

Dated 1944

£155

 

Click on the picture's to enlarge them.

 240 MPH ASI (pg 2 ins ASI 50)

Air Ministry Marked

Ref: 6A/282

Mk. IXC

Dated 1938

 

£225

Click on the picture's to enlarge them.

Sea Prince WP320

Sea Prince 600 Knots ASI (pg2 ins ASI 48)

Ref: 6A/3147

Mk. 9H*(P)

Dated 1952

Removed from Sea Prince WP320

£95

Click on the picture's to enlarge them.

200 Knots MK IX A  ASI Tiger Moth (pg2 ins ASI 45)

Air Ministry Marked 

 Ref: 6A/1615

 Dated 1943

Used in the Tiger Moth and probably other aircraft with similar performance.

Seen in situ above in a Tiger Moth.

£225

Click on the picture's to enlarge them.

600 Knots ASI (pg2 ins ASI 43)

 Ref: 6A/4399

Mk 9J* (P)

 Dated 1956

£85

 

Click on the picture's to enlarge them.

320 MPH ASI (pg2 ins ASI 42)

 Ref: 6A/415

Mk IXD

Battle of Britain Dated 1940

There is a Crack in the Bezel however the face is in very good Condition

As Used in the Paul Bolton Defiant, Fairey Battle and the Bristol Blenheim

£225

 

Click on the picture's to enlarge them.

340 Knots ASI (pg 2 ins ASI 41)

 Ref: 6A/4720

Mk 9K

Knots gauge in very good condition.

£95

 

Click on the picture's to enlarge them.

 

Meteor 600 Knots ASI (pg 2 ins ASI 39)

Mk.9 ASI. Ref Number 6A/4722

As Used in the Gloster Meteor  and other Early RAF Jet Aircraft

There is a Lug Broken on the bottom right corner

Gloster Meteor

£65

Mk IXF

Very Early date of 1940

 

480 MPH ASI 1940  (pg 2 ins Ref ASI 38)

This is an extremely rare 480 MPH Air speed indicator as it's dated 1940.  It uses the deeper early case later versions were half as deep.

 480 MPH Air Speed Indicators were not used in Spitfires until the Mark V . In 1940 the fastest aircraft in service the Spitfire MK II could not exceed 400 MPH and used the earlier 400 MPH ASI. The 480 MPH ASI  was generally only used in the Spitfire and Mosquito. In 1940 the Mosquito was still in its prototype stage and the only Spitfire capable of exceeding 400 MPH in a dive was the MK III Spitfire.

Seen below the MK III Spitfire

 

The first Mk IIII N3297 was first flown on 16 March 1940. In addition to N3297 in early 1941 a Spitfire Mk V, W3237 was converted to a Mk III, although it didn't have the retractable tail wheel. W3237 replaced N3297 when the latter was delivered to Rolls-Royce; W3237went on to become a test aircraft and was still being used in September 1944.

Although the new Spitfire was developed to replace the earlier marks on the production lines, a decision to allocate the limited supplies of Merlin XX to the Hurricane II series meant that the Mark III lapsed. Priority then focused on the Mark V series. The Mk III with the Merlin XX was capable of a maximum speed of 400 mph (640 km/h) at 21,000 ft (6,400 m). There were a small number of other prototype aircraft in 1940 which could possibly have used this ASI Spitfire MK III. Mosquito. Hawker Tornado. Speed Spitfire. Westland Whirlwind.

Out of stock more wanted contact us

Click on the picture's to enlarge them.

 

 

 Instructors Air Speed Indicator (pg 2 ins ASI 37)

A Very unusual air speed indicator used by Instructors

Air Ministry Marked

Ref: 9/529

Marked with H.T.A

One Mounting Lug is Missing

£55

 

Click on the picture's to enlarge them.

£175

 

 Pito tube MK VIII (pg 2 ins ASI 36A)

Pito tube made by Avimo in excellent condition

12 volt this voltage indicates that it was used on a single seat or fighter aircraft. made by Avimo in Taunton Somerset its possible it ended up on a Seafire made 30 miles away at Yeovilton.

Dated 1941

Spitfire Pito tube V (pg1 ins)

 Pito tube V (pg 2 ins ASI 36)

Pito tube made by Avimo in excellent condition

6A/1037661

Mk. 8.S 27 volt this voltage indicates a late war aircraft as later aircraft converted to 24 volts.

No 941/79

£425

Click on the picture's to enlarge them.

RCAF Spitfire/Hurricane Pito tube VIII C (pg 2 ins ASI 35B)

6A/215 12 volt

MK VIII C Pito tube in excellent serviceable condition complete with wiring original box and stores ticket certifying its serviceable this was last tested in 1951 so would require testing again .

 

£475

Click on the picture's to enlarge them.

£295

Sopwith Camel FI Pressure head Pito tube (pg 2 ins ASI 35A)

This is a Pito head for a Sopwith Camel F1 is is missing the clamped tubes.

The Sopwith F.1 Camel was a single-seat fighter biplane powered by a rotary engine (various engine types being fitted, the most common being the 130hp Clerget). 

It was equipped with two forward-firing synchronized machine guns mounted just ahead of the pilot’s cockpit under a raised fairing, which is said to have inspired the name Camel (initially used as a nickname, but subsequently adopted as the official name of the type). The type was highly manoeuvrable and popular with its pilots although the combination of the short-coupled aircraft and the rotary engine produced some handling quirks that could catch out inexperienced pilots. The Camel proved to be very successful in aerial dogfights and is said to have achieved more victories in combat than any other single type during the First World War.

 

Shown above the Sopwith Camel

Click on the pictures to enlarge

 Pito tube VIII (pg 2 ins ASI 35)

Pito tube made by Avimo in good condition. Mk. 8.S 27 volt .

No: 240/58   6A/5448

Click on the pictures to enlarge

 

£425

Click on the pictures to enlarge

Spitfire Pito tube MKVIII (pg 2 ins ASI 34A)

 Shown left in situ on a MK IX Spitfire.

I was told by the previous owner this Pito was used exclusively on Spitfires.

Click on the pictures to enlarge

   

AM  6A/730 Mk VIII C 12 volt

Ref: 137/41

£425

Spitfire Pito tube III (pg 2 ins ASI 34)

The pito tube is not really an instrument but as it operates the ASI this is the most appropriate place to list it. Shown left in situ on a MK IX Spit I was told by the owner this Pito was used exclusively on Spitfires.

Pito tube nos 3 this one's heating element has been tested and works.

AM  6A/730 Mk VIII C 12 volt

ref 46505

£425

 

Dated 1945

Click on the picture's to enlarge them.

These 600 MPH airspeed indicators are fitted first to Typhoons and later Tempests .With a 1945 date possibly Tempest  In nice original condition.

600 MPH  ASI (pg 2 ins ASI 33)

Hawker Tempest

£275

Click on the picture to enlarge it

260 Knots ASI (pg 2 ins ASI 30)

A/M 6A/422

Dated 1953

£95

 

Click on the picture to enlarge it

ASI 340 Knots Mk IXE (pg 2 ins ASI 28)

Airspeed indicator generic instrument, Knot ASI's were used in FAA aircraft as all land based aircraft of the time used MPH. The most likely match for this ASI used by the FAA in 1943 was the Beaufighter which was used by the Navy as a torpedo bomber.

Maximum speed: 320 mph (510 km/h, 280 kn) at 10,000 ft (3,000 m)

Dated 1943

A FAA Mark VIC Beaufighter loaded with an 18-inch Mark XII torpedo

 £155

Click on the picture to enlarge it

 

ASI 320 MPH Mk IXD  (pg 2 ins ASI 27)

Airspeed indicator generic instrument suitable for Bolton Paul Defiant or Blenheim, used in other aircraft with similar performance.

Classic Battle of Britain 1940 dated.

 

£175

Click on the picture to enlarge it

320 MPH ASI 1940 (pg 2 ins ASI 26)

Here we have a 320 MPH ASI dated 1940 in good condition

This is like most instruments is generic and would have been fitted to a range of aircraft with suitable performance. This type of ASI was also fitted to the Fairey Battle shown above.

The Fairey Battle was one of the most notorious aircraft of the WWII. During the German invasion of France in 1940 the Battle squadrons suffered very heavy losses during a series of desperate attacks on the German spearhead.

The Battle was designed to replace the Hawker Hart light bomber. In 1933 the Air Ministry wanted an aircraft that could carry two crew and a 1,000lb bomb load for 1,000 miles at 200mph.

 

Out of Stock More Wanted Contact Us

Click on the picture to enlarge it

 

Canadian 300 MPH A.S.I  (pg 2 ins ASI 22)

Canadian Aircraft Instruments & accessories LTD Ontario

Serial number 311 59 Type AS 3L

Ref 6AA/47

 This Airspeed indicator is Canadian built Lancaster and shows the difference between British and Canadian built instruments.

I would say this is from a Harvard but its possible it could of been fitted to a Lancaster which were also built in Canada.

Shown under a Harvard these aircraft were mostly used for training Pilots.

Related image

£155

Click on the picture to enlarge it

.

Typhoon A.S.I. 600 MPH  (pg 2 ins ASI 21)

These 600 MPH airspeed indicators are very rare and fitted first to Typhoons and later Tempests. I would say this was almost certainly fitted to a Typhoon. In nice original condition.

6A/1265

 Dated 1943

The face is set at an angle as can be seen in the picture. I am not sure why but the face has not and cannot slip in the case so it was positioned this way for a reason

£275

Click on the pictures to enlarge

 

Click on the pictures to enlarge

Click on the pictures to enlarge

£395

 

WW I Pitot tube for Nieuport 17 (pg 2 ins ASI 18) 

This is a very rare piece its a Pito tube from a French WWI aircraft. On the advertisement, shown below is:"Trompe anémométrique" The translation to English  n this case,"trompe" means tube or more precisely horn .and "anémométrique" wind speed measure"

It's writen in French, but in the French way of writing 100 years ago. Today,"un avion"(a plane) was  an" Aeroplane" 
 
The modern meaning ,of this advertisement is speedometer. The other name of the "trompe anémométrique" is "tube venturi".

Click on the pictures to enlarge


The piece is in excellent condition please enlarge the pictures. It was fitted to the Nieuport 17 but probably other French WWI aircraft as well.

Above the Nieuport 17

Click on the picture to enlarge it

400 MPH Record Electrical company LTD ASI (pg 2 ins ASI Ref 10)

Here is an usual piece a 400 MPH ASI made by the Record Electrical Company, its unusual in that the scale reads from minus 100 MPH to 400 MPH. My best guess is that it is a piece of equipment used to test or calibrate Pitot tubes.

The record Electrical company

1911 Company formed by John Westmoreland Record.

1937 Electric engine speed indicators and electrical instrument manufacturers.

£125

Click on the picture's to enlarge them.

ASI 320 MPH  (pg 2 ins ASI Ref 9)

Here is a 320 MPH Airspeed indicator in  good original condition.

Dated 1942

Out of stock more wanted contact us

Click on the picture to enlarge it

240 MPH ASI 1942  (pg 2 ins ASI Ref 8)

240 MPH airspeed indicator dated 1942. This ASI would be used in a variety of the slower RAF aircraft operating in 1942. The North American Harvard would be a suitable candidate. One damaged lug see picture, would not affect its appearance in the panel as it is mounted from the rear.

£155

 

 

Click on the picture to enlarge it

300 MPH ASI  (pg 2 ins ASI Ref 7)

Air speed indicator I have not seen one of these marked to 300 MPH before normally they read to 320.

 In good original condition it has one lug broken off but will still fit happily into a panel.

Dated 1942 this has certainly seen action as it serviced in 1945

 

£175

 

400 Knots ASI 2  (pg 4 ins)

Click on the picture to enlarge it

400 Knots ASI   (pg 2 ins ASI Ref 6)

 

Dated 1944

      6A/598           

£175

Click on the pictures to enlarge

480 MPH ASI reproduction (pg 2 ins ASI Ref 5)

This is a superb reproduction 480 Spitfire ASI.

The case is an original  case and the face is properly engraved allot of work has gone into creating this superb replica you cannot tell it apart from the original other than the fact it is not luminous. Although these will probably function as the movements are original they are sold for display only and are not calibrated or sold as working.

£150

Click on the pictures to enlarge

 Mk I Spitfire/Hurricane 400 MPH ASI  (pg 2 ins ASI 4A)

Here is a super hard to find original ASI reading to 400MPH used in early Spitfires and Hurricanes. All Hurricane Mks were fitted with this ASI while the Spitfire only used it up until the MK V was introduced.

Dated 1944 so almost certainly originally fitted to a Hurricane as the Spitfire was using the 480 MPH by this date.

6A/583

Out of stock more wanted contact us

 

Use the links under to navigate the instrument pages

Page 1 Instruments home.  Page 2 Airspeed indicators.    Page 3 Altimeters.    Page four Boost gauges.    Page five Clocks and compasses. Page Six Climb and descend.          Page 7 Directional indicators     Page 8 Fuel gauges   Page 9 Flap Indicators  Page 10 Brake Gauges  Page 11 Oxygen gauges

Page 12 Pressure gauges   Page13 Revolution Counters   Page 14 temperature gauges    Page 15 Turn and slip and artificial Horizon 

Page 16 Undercarriage indicators  Page 17 Trim gauges  Page 18 Volt and Ammeter

 


       

 


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