Harold Wakefield's Halifax flight engineer notes

MWakefieldHE174040-171016-19.pdf

Title

Harold Wakefield's Halifax flight engineer notes

Description

Covers Halifax Mk III, starting and running up, handling and climbing, cruising, and data tables. Continues with Lancaster fuel (capacity), oil, coolant, rad flaps, external checks, auxiliaries checks on turrets and engines, temperatures for run up, max landing weight, engine revs and drills (feathering and unfeathering, runaway prop as well as run-up, take off fuel pumps settings).

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Language

Type

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Notebook with handwritten entries

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This content is available under a CC BY-NC 4.0 International license (Creative Commons Attribution-NonCommercial 4.0). It has been published ‘as is’ and may contain inaccuracies or culturally inappropriate references that do not necessarily reflect the official policy or position of the University of Lincoln or the International Bomber Command Centre. For more information, visit https://creativecommons.org/licenses/by-nc/4.0/ and https://ibccdigitalarchive.lincoln.ac.uk/omeka/legal.

Contributor

Identifier

MWakefieldHE174040-171016-19

Transcription

[front cover of notebook]

Wed 1

thur 0

Frid 0

BAROMETRIC

[page break]

[underlined] HALIFAX MK. III [/underlined]

[underlined] Starting & Running Up. [/underlined] Gills fully open.

Test for hydraulicing after 1 hr. stand on ground

after 4 hrs. stationary in air.

Do not prime until engine is turning.

Run at 800 revs. then 1000 - 1200 revs. for warming up. Turn head to wind.

Before ground checking: - cylinder temp. min. 1000 C.

oil temp. min. 150 C.

oil press. min. 60 lb [symbol] “

oil temp. max. 900 C.

cyl. temp. max. 2700 C.

Check R.P.M. lever at 2200 revs. 2800 revs & 8 1/4 boost. throttle back to just under +6lbs. boost. & check mags. limit 50 revs. drop. Throttle back to 1500 revs. & check blower, temporary loss of 30lbs. oil press.

Do not run in S gear above 1500 revs. below 5000ft. [underlined] Stopping. [/underlined] Run at 1000 revs. until cyl. temp. finishes dropping, open up to [deleted] 12 [/deleted] [inserted] 1800 revs. [/inserted] for few seconds then throttle back & cut.

[page break]

[underlined] Handling & Climbing. [/underlined]

Climb at 2400 revs. & E.C.B. (+2) M gear at [underlined] 155 [/underlined] I.A.S. when boost falls to +1 (about 12000 ft.) change to S gear. Climb to 16000 ft. then advance throttle to mid-way position & climb at [underlined] 145 [/underlined] I.A.S. to 22,000 ft. then bring throttle back to E.C.B. position & fly at [underlined] 160 [/underlined] I.A.S. with 2400 revs. After releasing bombs climb to 24,000 ft. at 2400 revs. E.C.B. 160 I.A.S.

When descending leave throttle at E.C.B. position and progressively reduce revs. (Change back to M gear about 12,000 ft.) where revs. are down to 16,00 start closing throttle progressively.

For cruising throttle should be always left at E.C.B. position.

In emergency increase revs. to 2800 & open throttle until highest possible boost pressure is obtained.

[page break]

[chart of numbers in rows and columns]

[page break]

[underlined] LANCASTER [/underlined]

[underlined] FUEL [/underlined] :- 3 tanks. No1 INNER 580 GALS.

No2 CENTRE 383 GALS.

No3 OUTER 114 GALS.

[underlined] TOTAL CAPACITY. [/underlined] 2154 GALS.

Use 120 gals. from No.2

Turn on No. 1 & use 283 & pump 114 from No3. into No. 2.

Now No 1 & No 2 are level use alternatively for 1 hr.

[calculations]

Always turn on booster pumps & test before T.O. Always turn on booster pumps for T.O. LANDING. EVASIVE ACTION. & ABOVE 17,000 F.T. & WHEN WARNING LIGHT COMES ON.

Aways switch on booster pumps of appropriate tanks before turning on those tanks.

[page break]

To run all engines on 1 tank.

Turn on booster pump & then appropriate tank, turn on Main Balance & turn off necessary tanks.

Before landing run all 4 engines on each tank in turn to test pipelines.

[underlined] Oil. [/underlined]

Capacity 37 1/2 Gals + 4 1/2 Gals air space.

[underlined] COOLANT [/underlined] 12 1/4 gals. inboard.

11 gals. outboard.

[underlined] RAD FLAPS [/underlined] Two positions fully open or closed.

[underlined] EXTERNAL CHECKS [/underlined]

1/ PITOT HEAD COVER OFF.

2/ SECURITY OF LEADING EDGE & COWLINGS.

3/ CHECK WHEELS FOR CUTS & CREEPS & OLEO LEG EXTENSION (MIN. 2” LOADED)

4/ CHOCKS IN POSITION.

5/ STATIC VENT PLUGS OUT

6/ CHECK MASTER COCK FOR BOMB DOORS.

[page break]

[underlined] AUXILIARIES [/underlined]

[underlined] P.O. [/underlined]

REAR TURRET

ALTERNATOR (GEE)

[underlined] P.I. [/underlined]

MID-UNDER

HYDRAULIC PUMP

ELECTRIC GENERATOR

PESCOE PUMP

RAE COMPRESSOR

[underlined] S.I. [/underlined]

FRONT TURRET

HYDRAULIC PUMP

ELECTRIC GENERATOR

PESCOE PUMP

HAYWARD COMP.

[underlined] S.O. [/underlined]

MID-UPPER

H2S ALTERNATOR.

[underlined] MIN. TEMPS FOR RUN-UP. [/underlined] OIL 200 C.

COOLANT 600 C.

[underlined] MIN. OIL PRESSURE. [/underlined] 45 lbs. per [symbol] “.


[underlined] MAX. COOLANT. [/underlined] 1250. C. T.O. & CLIMBING (CONTINUOUS)

1350 C. (5 MINS)

[underlined] MAX. OIL. [/underlined] 950 C. CONTINUOUS

1050 C. 5 MINS.

[page break]

[underlined] MAX. LANDING WEIGHT. [/underlined] 55,000 lbs.

[underlined] NORMAL MIN. REVS. [/underlined] 1950 REVS.

1800 for 1/2 hrs then clear engines at 2650 +4.

[underlined] FEATHERING [/underlined] 1/ I.C.O. OFF

2/ PRESS FEATHERING BUTTON.

3/ PETROL MASTER COCK OFF

4/ ENGINE STOPS. ENSURE BUTTON RELEASED.

5/ SWITCHES OFF.

[underlined] UNFEATHERING [/underlined] 1/ PITCH C/U TO COARSE

2/ THROTTLE OPEN 1/2”

3/ MAG. SWITCHES ON.

4/ PRESS BUTTON (15-1800 revs)

5/ MASTER COCK ON.

6/ I.C.O. SWITCH UP.

7/ SYCHRONISE. [sic]

8/ RETRIM.

[page break]

[underlined] RUNAWAY PROP. [/underlined]

THROTTLE BACK.

HOLD NOSE UP.

PITCH FULLY FINE.

TRY FEATHERING.

[underlined] RUN-UP. [/underlined]

Idle at 1200 Revs.

Open throttles to 0 boost 24-2500 R.P.M.

Check C.S.U. fully coarse 17-1800 R.P.M.

Full fine 24-2500 R.P.M.

[page break]

Open throttle to +9 boost check 2850-3000 R.P.M. check mags 150 MAX.

Close to 0 boost check Supercharger S gear

1/ Flicher in revs & boost.

2/ Red warning light in cockpit.

Return to M. gear

Fully close throttle, check slow running

Line I 600 R.P.M.

Line III 800 R.P.M.

Idle at 1200 R.P.M.

[page break]

TAKE-OFF ON 1

USE 150 gals from 1

TURN ON 2 & PUMP OVERLOAD INTO 1. WHEN ENOUGH HAS BEEN USED FROM 2 TURN BACK ON TO 1 & PUMP 3 INTO 2 THEN USE 1 & 2 AS PLEASED

Citation

H E Wakefield, “Harold Wakefield's Halifax flight engineer notes,” IBCC Digital Archive, accessed February 21, 2024, https://ibccdigitalarchive.lincoln.ac.uk/omeka/collections/document/33722.

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