Author Topic: P-38 Anecdote  (Read 622 times)

Offline Pyro

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P-38 Anecdote
« on: February 22, 2005, 09:24:03 AM »
Here's an excerpt from a write-up of one pilot's experience with the P-38.  It's an interesting read that covers a number of subjects that I've seen discussed on sim boards over the years.  The author of this particular segment is the late Col. Royal Frey, who served as curator of the Air Force Museum at Wright-Patterson.

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One of the greatest bugaboos of the P-38 was engine failure on takeoff.  Consequently we had drilled into us critical single-engine speed on takeoff-130 mph.  Even before God, Motherhood, and Country came that 130 mph as soon as possible after your wheels left the runway.  As a result, as soon as the plane broke ground, you dropped your nose to maintain level flight 5-10 feet off the runway.  You always added 10 mph for next-of-kin and another 10 mph or so as a fudge factor.  Then you gradually lifted the nose for optimum climb speed of 160 mph.  If in a populated area, the tendency was to hold the plane on the deck and build up as much speed as possible before beginning your climb- it was much more impressive to the taxpayer who might be driving his auto down a street off the end of the runway when your props cut through the air within a hair of his head.  We all knew it was legalized buzzing but defended it fervently; we had to get that safe single-engine speed or die!

I do not personally recall anyone ever losing an engine or prop on takeoff.  I do remember hearing of a few instances of a runaway prop, but many of them might have been caused by the pilot taking off with one of his Curtiss electric props locked in fixed pitch.

My only personal experience with this type of difficulty on takeoff resulted from an oil cap coming loose while taxiing along the rough grass runway at Wittering RAF Station in England.  On liftoff I noticed oil pouring along the cowling of my right engine.  I first hit the right feather switch and then trimmed in left rudder and left aileron after pulling the mixture control to idle-cutoff.  I do not remember my exact airspeed as I crossed the boundary at the far end of the field, but I could not have been doing anything more than 135-140 mph.  At this fairly low speed, the plane was anything but the snarling, uncontrollable monster I had been led to believe.

The P-38 was an excellent gun platform, although it was more difficult than in a P-47 or P-51 to get strikes on a target because the four .50 caliber guns and 20mm cannon were grouped so closely together in the nose.  However, if we got any strikes at all, we had a much better chance of getting a victory; those five weapons put out such a heavy column of projectiles that they bored a large hole through anything they hit.

The P-38 had the famous Fowler flap, which, at half-extended position, greatly decreased turn radius at altitude at the expense of very little additional drag.  This feature, incorporated in the P-38 for combat, was given the name “maneuver flaps.”  With maneuver flaps I actually turned with late-model Spitfires during “rat races” over England and turned inside FW-190s in action over Europe.

There was a poor design feature associated with the maneuver flaps, however- namely the control lever, located on the right side of the cockpit.  Since the P-38 was flown with the left hand on the throttles and the right hand on the control wheel, any use of maneuver flaps required the pilot to keep his right hand dancing from the wheel to the lever while at the same time moving his left hand from the throttles to the wheel every time he took his right hand off the wheel to move the flap lever.  Whoever gave the final approval for the location of the flap handle in the P-38 certainly must not have given any thought to its use in combat.

Although the P-38 could turn very tightly once it got into a bank, getting it into the bank was another matter.  Late K series and L series Lightnings had aileron boost, but this feature came too late for those few of us who took on the Luftwaffe deep inside Germany in those grim days of late 1943 and early 1944.  Because of the weight of the plane and the poor leverage of the control wheel compared to that of a control stick, the planes roll rate approximated that of a pregnant whale.  If we ever got behind a single-engine fighter in a tight turn, all the other pilot had to do was flip into an opposite turn and dive; by the time we had banked and turned after him, he was practically out of sight.

One day on a local flight over England I noticed that by jamming in quite a lot of rudder a second or two before trying to bank, I was apparently able to speed up the plane’s roll response by lessening the force needed to turn the wheel.  Whether it actually had any effect or not is a good question, but it did a lot for my mental attitude.

One trick I once used (other P-38 pilots may also have used it at times) when a German plane got close behind me in a tight left turn was to chop right throttle and kick full right rudder along with right aileron.  I seemed to snap up and over to the right, and although I am certain I never approached a spin, I do not know to this day exactly what maneuver the plane executed.  However, the German plane could not follow me through it, and that was the important factor.  I never needed to try this trick in a right bank, but the resulting maneuver probably would have been the same through in the opposite direction.

The P-38 had a combat tactic that was very effective against German fighters but not taught to or known by many P-38 pilots.  Luckily I was one of the exceptions.  On January 4, 1944, the 8th Air Force bombed Kiel.  That evening while reading the intelligence TWX (teletype printout) of the mission, I noticed a statement by a pilot of the 55th Fighter Group who reported that he had escaped from a German fighter by pouring on full throttle and going into a steep corkscrew climb to the right.  

The next day the 8th went back to Kiel, and this time I went along on escort.  My flight of four P-38s was bounced by twenty-five to thirty FW-190s of the yellow-nose variety from Abbeville.  A string of six or more of them got in behind me before I noticed them, and just as No. 1 began to fire, I rolled into a right climbing turn and went to war emergency of 60 inches manifold pressure.  As we went round and round in our corkscrew climb, I could see over my right shoulder the various FW-190 pilots booting right rudder attempting to control their torque at 150 mph and full throttle, but one by one they flipped over to the left and spun out.  Incidentally, although I had been told in the States that it was not possible, I could actually see tracer bullets leave their barrels and zip towards me!

Upon landing back in England, I was told that my plane whistled as I circled for landing.  There was good reason- the left wing outside the boom was shot so full of holes that it had to be replaced.  Those FW-190 pilots had been able to get sufficient lead to hit my left wing, but none had been able to get that little extra bit of lead needed to knock out my left engine or put a burst of fire into the cockpit.

Offline Pyro

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P-38 Anecdote
« Reply #1 on: February 22, 2005, 09:24:42 AM »
In addition to an agonizingly slow roll rate, the P-38s I flew in combat had two other very limiting features- restricted dive and cockpit temperature.  It was suicide to put the P-38 into a near vertical dive at high altitude; all we P-38 pilots knew it, and I believe all the Luftwaffe pilots knew it, for they usually used the vertical dive to escape from us.  You could “split-S” and do other vertical-type maneuvers at high altitude; and as long as you continued to pull the nose through the vertical, you always held your airspeed within limits.  But let the nose stay in the vertical position for more than a few seconds and you reached what was termed “compressibility” in those days.  The nose would actually “tuck under” beyond the vertical position, and it would impossible to recover the plane from its dive.  The only salvation was to pop the canopy, release your seat belt, and hope you would clear the plane as you were sucked from the cockpit.  The 20th Group lost two P-38s in vertical dives over England before we went operational, but both pilots bailed out successfully (although one of them almost killed himself when he popped his chute too soon).

According to a Lockheed tech rep who once visited us, theoretically the air was sufficiently dense at 1,500 feet below sea level for the P-38 to begin pulling out of a high-speed vertical dive.  Such a statement did little to bolster my confidence.  Later Lightnings had dive brakes under the wings to correct this problem, but they were too late to be of value to me.  

The other limited feature, cockpit temperature, would be more correctly identified as “paralyzing.”  Cockpit heat from the engine manifolds was nonexistent.  When you were at 30,000 feet on bomber escort and the air temperature was –55 F outside the cockpit, it was –55 F inside the cockpit.  After 30 minutes or so at such a temperature, a pilot became so numb that he was too miserable to be of any real value; to make matters worse, he did not particularly care.  Only his head and neck exposed to the direct ray s of the sun retained any warmth.

Not only did the numbness seriously decrease a pilot’s efficiency, but the bulky clothing he wore further restricted his efforts.  For example, I wore double-thickness silk gloves, then heavy chamois gloves, and topped these with heavy leather gauntlets (all British issue).  Inside all these layers were fingers almost frozen stiff and completely without feeling.  Flipping a single electrical switch required deep concentration, skill, and luck, and the P-38 cockpit was loaded with electrical switches.  How we envied the P-47 and P-51 pilots with a heat-producing engine in front of them to maintain a decent cockpit temperature.

The greatest problem of all with the P-38 over Europe in 1943-44 was its engines, or rather its engine installation.  When the AAF decided to add more internal fuel to the P-38 and thereby increase its range, the only place more tankage could be placed was in the leading edges of the wings where the intercoolers were located.  So leading edge tanks for about one hour’s additional endurance were installed and the intercooler radiators wre moved to the lower noses of the booms under the prop spinners.  

The intercoolers worked fine in this position, but the adjacent oil coolers were now much too efficient.  We would put up a Group strength of 48 planes and if 30 got to the target, we considered ourselves fortunate.  On every mission plane after plane would turn back for England once had reached high altitude, primarily because of an engine that had blown up or a turbosupercharger that had “run away” –i.e., uncontrollable overspeeding.

A couple of months after my left engine had blown up while I was flying deep inside Germany (an event that led to my capture), Colonel Mark Hubbard, 20th Group CO, arrived at Stalag Luft I, my POW camp on the Baltic Sea north of Berlin.  In a conversation one day he remarked that during the first three months the 20th Group was on operations, it had the equivalent of a complete turnover in pilots- 70 percent of which could be attributed either directly or indirectly to engine trouble.  What a needless waste of highly trained men to the enemy!

A Lockheed tech rep explained that at the tremendously low air temperatures in which we were flying, the oil in the radiators cooled to such an extent that its viscosity resembled that of molasses.  It simply refused to flow sufficiently, and the engines would eventually explode or the oil-type turboregulators would malfunction.

The P-38 had a horrible reputation when it came to a pilot bailing out.  The horizontal empennage, which we dubbed “the cheese knife,” was considered a menace.  In reality it was less of a threat than the stabilizers on the P-47 and P-51, simply because it was located farther to the rear from the P-38 cockpit, thereby providing more chance for a pilot to clear it on bailout.  In addition the P-38 did not have a fin and rudder directly behind the cockpit which the pilot had to avoid.  The only fighter pilot I knew in POW camp to strike the tail of his plane was a fellow who bailed out of a P-51D.  When I was forced to bail out over Germany, I rolled my P-38 onto its back and dropped clear without any difficulty.

The experience that led to my capture in February 1944 sheds light on the performance of the P-38 in combat.  Five Lightnings dove on four Me-410s and two Me-110s in a combat over Germany, and the Luftwaffe pilots scattered in all directions.  I decided that if I were going to have to chase one of the German planes, I might as well be heading toward England, so I selected an Me-110 scooting westward on top of the cloud deck.  Having had a right engine shot out by an Me-110 rear gunner over Frankfort two weeks previously, I had developed quite a healthy respect for any rear gunner.  Therefore, I lined up behind the German plane and dropped into the cloud deck, holding a steady compass course.  When I slowly pulled up from the cloud layer, the Me-110 was slightly above me at a range of less than 200 feet.  I took careful aim at its belly through my gunsight and let it have all four .50 caliber guns and the 20 mm cannon.  The Me-110 flamed so rapidly that the crew probably never had time to realize what had happened to them.

Quite elated, I pushed my prop pitches forward to 3,000 rpm and my throttles to 54 inches of manifold pressure, maximum allowable military power.  Although the P-38 handbook allowed fifteen minutes of operation at military power, my left engine blew up after only three minutes.  The Allison “time bomb” had once again held true to its reputation.

I feathered the left prop immediately and headed westward as before, hoping to reach England more than 300 miles away.  However, the P-38J-10LO had a design feature none of us pilots could ever quite fathom: it had only one generator, and it was on the left engine.  (Later series J airplanes were produced with a generator on each engine.)  Normally this would not have been a problem, but the cross-feed on the P-38 was electrical, and a pilot had to have electrical power to transfer his fuel from the tanks on one side of the plane to the engine on the other side.  Even though I had turned off all electrical equipment immediately upon losing the left engine, I realized my cross-feed would probably drain my battery before my right engine had time to burn all the fuel in my two left tanks.  I determined to stay on cross-feed until the battery went dead and then switch to my right tanks.  This would probably never get me across the North Sea to England, but it should get me to Holland, where I had a chance of being picked up by the underground.

After flying on instruments for almost an hour, I broke through the western edge of the cloud layer into clear air; suddenly I saw five bursts of light flak walking in on me from the right side, exactly at my altitude.  Then, to my utter horror, I heard the sixth one somewhere from below my plane.  My mind flashed back to the bars in London in those days before I began flying ops when the bomber boys used to quip, “If you ever hear it, it’s got you.”

Their words were prophetic, for within a few seconds my right engine began smoking.  To get away from the flak battery as rapidly as possible, I dove for the deck and leveled off on the treetops.  I sped across forests and open fields with the smoke rapidly getting more intense.  Before long I began to smell it as it seeped through the wing into the cockpit.  It did not take much debate for me to decide I should not attempt to belly-land a smoking plane.  Besides, the Germans, to the best of my knowledge, had not yet received a J series P-38 in any respectable condition worthy of close technical examination.

As I approached another forest, I decided to use the remaining “excess” speed from my dive for a zoon to sufficient height for bailout.  As I reached the other side of the forest, I pulled up into a climb, leveled off, cranked in full-down nose trim, rolled the plane on its back, pulled the canopy release, and unlatched my safety belt.  With flames now coming into the cockpit from around the right window, all these motions were performed almost as one, and I next felt myself drop into the rushing airstream.  

Admittedly the P-38 was outperformed by the P-47 and P-51 in the skies over Europe, but many of its difficulties were the result of unnecessary design deficiencies and the slow pace of both the AAF and Lockheed in correcting them.  One can only ponder about how much more rapidly the troubles would have been remedied if the slide-rule types had been flying the plane in combat against the Luftwaffe.  But I will always remember the P-38 with the greatest fondness.  Even with all her idiosyncrasies, she was a real dream to fly.

Offline Toad

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P-38 Anecdote
« Reply #2 on: February 22, 2005, 10:03:48 AM »
Thanks, Pyro. Good read.

BTW, did I ever tell you about my 500 hours in a P-38?


;)
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Offline straffo

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P-38 Anecdote
« Reply #3 on: February 22, 2005, 10:18:54 AM »
Quote
According to a Lockheed tech rep who once visited us, theoretically the air was sufficiently dense at 1,500 feet below sea level for the P-38 to begin pulling out of a high-speed vertical dive.


Did I translated correctly : - 500 meter ?

Offline Toad

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P-38 Anecdote
« Reply #4 on: February 22, 2005, 10:27:11 AM »
Quote
at 1,500 feet below sea level


You probably have to pull REAL hard. ;)


Either the Lockheed guy was being funny... or drunk.... or maybe it's a typo.

Anyway, there can't be too awful many places where you could pull out if it were true. :)
If ye love wealth better than liberty, the tranquility of servitude than the animated contest of freedom, go from us in peace. We ask not your counsels or arms. Crouch down and lick the hands which feed you. May your chains sit lightly upon you, and may posterity forget that you were our countrymen!

Offline hogenbor

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P-38 Anecdote
« Reply #5 on: February 22, 2005, 10:50:09 AM »
Quote
Originally posted by Toad
Thanks, Pyro. Good read.

BTW, did I ever tell you about my 500 hours in a P-38?


;)


LOL, that just made my day.

Good read Pyro, thanks.

Offline DiabloTX

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P-38 Anecdote
« Reply #6 on: February 22, 2005, 11:20:48 AM »
I've read that somewhere before but I never get tired of reading it.  Great stuff, thanks Pyro!
"There ain't no revolution, only evolution, but every time I'm in Denmark I eat a danish for peace." - Diablo