Archive for July, 2008

DITCHING SURFACES

Monday, July 28th, 2008

 

DITCHING SURFACES

     by  

BRY THE DUNKER GUY  

  

    

No pilot or anyone on board an aircraft ever really expects to find themselves short final for a body of water on wheels and facing the reality of a high speed impact ditching.

Unfortunately this does happen more often than most realize and should be considered as part of your emergencies repertoire.

This situation could come about while in flight over a lake or ocean when an engine fails, maybe while a float aircraft is landing or taking off and makes contact with a submerged object just below the surface.

When it does happen to a unsuspecting aviator who has no training for a situation like this ,or is totally unprepared with no pre-determined plan there is little time to figure out what to do or how to react.

Worse yet the passengers are at a total loss seeing as they are confident the captain is capable of handing all possible flight emergencies and await instructions for the occasion.

Once any fixed gear wheeled aircraft has impacted the water surface at speeds of roughly 60 mph or more, there will be the sudden stop followed by the good possibility of inversion.

About that time upside down and submerged in cold water you become aware of a totally foreign and terrifying situation involving disorientation and entrapment, with zero communications and less assistance.

There are a number of things such as the brace position to be aware of prior to a ditching, but here are a few tips of what to consider regarding water conditions and how to plan for a ditching into a variety of surface conditions.

Wind Speed

Appearance of Sea

Effect on Ditching

0-6 knots

Glassy calm to small ripples

Height very difficult to judge above glassy surface. Ditch parallel to swell

7-10 knots

Small waves; few if any white caps

Ditch parallel to swell

11-21 knots

Larger waves with many white caps

Use headwind component but still ditch along general line of swell

22-33 knots

Medium to large waves, some foam crests, numerous white caps

Ditch into wind on crest or down slope of swell

34 knots and above

Large waves, streaks of foam, wave crests forming spindrift

Ditch into wind on crest or down slope of swell. Avoid at all costs ditching into face of rising swell

 

                  Note: The effects on ditching mentioned in the table are appropriate for light aircraft only.

       

As an in pool instructor I have now witnessed thousands of pilots and passengers during our warm pool Egress training courses. I assure you the majority do not handle the first few roll overs well, thus the stats are correct in real life when the first one counts.

There is no excuse not be Egress trained anymore as Aviation Egress Systems is available year round at Victoria BC, and travels across Canada every spring and fall offering a one day course at a very affordable cost to all.

Contact me for dates and locations near you now as we will travel anywhere in Canada where groups of pilots and passengers request us.

 

 

Bryan Webster is a 11.000 hour plus pilot still actively flying a De Havilland Beaver on the BC Coast today when not teaching pilot/passenger Egress Training.

His vast experience from over 25 years in light aircraft, and from being a passenger of a 1977 Cessna 150 ditching have proved extremely valuable when passing on the procedures in his Egress Training specialized pool equipment.

 

 

 

 

To enrol in an Egress training course to improve your piloting skills contact -

 

“BRY THE DUNKER GUY”

         Bryan Webster

      www.dunkyou.com

 

info@dunkyou.com

250-704-6401

Toll Free 1-877-GO DITCH

 

 

 

 

Close Encounter of the Watery Kind

Sunday, July 13th, 2008

                 Close Encounter of the Watery Kind - by a Lucky Lady

 

After a fun day of sun and sand, an outwardly pleasant excursion nearly came to a nasty end with undercurrents of aggravation leading to a small but potentially fatal error.  I related the following story to Bryan Webster right after it happened, still feeling rattled that I could have ended up in the drink.  It can happen to anyone anytime and you’d better know how to get out of the cockpit.  You may not be as lucky as I was!

                                     ***************************************

Flying is fun and going by air for a picnic is one of life’s greatest pleasures.   Bob is a private pilot and I have a commercial license, although we fly only for recreation.  We have been flying together for eight years and are comfortable with each other as pilots.  We made our plans; I’d fly outbound to our destination, a little airstrip about 90 minutes away, we’d have lunch on the warm sandy beach nearby and he’d fly us back to our home airport.

 

Just before our departure, a young, newly-licensed pilot asked if he could go with us.  Why not?  The more the merrier!  Off we went with “the kid” in the back seat of the C172.  We’d been flying since he was in Pampers….

 

Several hours later, we were back at our base on long final, beautifully set up by Bob.  The approach took us over a wide stretch of water; the VASI lights shone red over white as we glided in, throttled back to near idle – a perfect approach. Just as we crossed the numbers, the propeller stopped turning!  Engine failure!  We were surprised but not scared because we were about to touch down anyway.  We landed normally and rolled off the active.

 

The cause of the failure was, as usual, fuel starvation.  But why?  Well, as usual, it was pilot error; during the pre-taxi, Bob had omitted one little step of the checklist – the step where the fuel selector is switched to “Both” after having run the engine on “Left” and “Right”.  We had made the return flight using the fuel in just one tank and by pure good fortune it had run dry a few seconds before landing. 

 

Although this particular incident had a happy ending, the really scary thing is that it might have finished in a watery death for three people.  Many high-hours professional pilots have met their end by the fuel selector switch mistake. Luckily for us, the engine ran out of fuel just before touchdown, in fact the prop may have been wind milling for some seconds before it actually stopped turning.  Had the tank run dry just 60 seconds sooner, we would have been another mile or more out – over the water at a low altitude.  Even if the cause of the engine failure had been quickly diagnosed, switching over the fuel selector, restarting and getting the plane flying again would have taken too much time….

 

In this case, when the aircraft strikes the water, it noses over, leaving the occupants upside down in their seat belts, disoriented and in a panic.  This horrible scenario made me realize just how important it is to learn how to escape from a submerged cockpit.  Despite having known “Bry the Dunker Guy” for over 20 years, I had never taken his submerged aircraft fuselage egress (S.A.F.E.) training course. I had watched him develop his methods and get AES, Underwater Egress Systems started about 10 years ago; I was in the cheering section when Bryan won the 2007 Transport Canada Aviation Safety Award for his exceptional commitment to underwater egress training for pilots.  I had personally promoted the course to all my pilot pals, pointing out how much water there is in our area and how you never know when something could go wrong.  Despite all that and even the offer of taking the course for free, I had not done it!  Did I consider myself too good a pilot ever to end up in the water?  What was I thinking!

 

As we taxied in, the kid in the back seat informed us rather gratuitously that “fuel on both” is part of the pre take-off check.  Bob zipped his lip and I became aware that our passenger had played a part in the string of events that had led up to a moment of distraction and the missing of a step in the checklist.

 

As a devotee of Tony Kern, author of Flight Discipline, I find an analysis of the lead-up to an incident quite fascinating – it is frightening to know how easily even the most experienced pilots can be diverted from their tasks by seemingly innocuous events.

 

So what exactly contributed to a moment of carelessness that might have had fatal consequences?  All three of us had a hand in it.  The kid vanished just as we were ready to depart the airstrip. A quarter hour ticked by before we found him and got him into the plane.  We had filed a flight plan and our take-off time was now delayed – hurry, hurry with the checklist; make up for the lost 15 minutes.  For my part, I had failed to realize how irritated Bob was with the hold-up and kid’s non-stop advice– the lad had all the wisdom of a 60 hours’ pilot!  If I had gone through the pre-taxi checks with him instead of turning to the back seat and scolding the kid for delaying us, it is unlikely we would have missed the “fuel on both” step.  Strangely, on the return flight, I glanced over at the fuel gauges and noticed the right tank needle on E while the left was showing half full. All that crossed my mind was that the damned things didn’t work, and I concentrated on the gyroscopic precession that was going uncorrected.  Bob and I hardly spoke during the flight, but the kid kept up his chatter and my partner gritted his teeth harder all the while!  The final straw was the dead stick landing.

 

Have you got any Safety stories worth submitting and would like to share them with our COPA members? If so please contact me Bry the Dunker Guy.

 

AES SAFE Egress Training will be available all over Canada in the spring of 2008.

For details on locations and dates contact-

 

Aviation Egress Systems www.dunkyou.com

info@dunkyou.com

250-704-6401

Dream of Flying Planes

Sunday, July 13th, 2008

Dream of flying planes

Sue and Bob, a pair of tight wads, lived in the mid west, and had been married years.

Bob had always want to go flying. The desire deepen each time a barn stormer flew into town to offer rides.

Bob would ask, and Sue would say, “No way, ten dollars is ten dollars.”

The years went pay, and Bob figured he didn’t have much longer, so he got Sue out to the show, explaining, it’s free to watch, let’s at least watch.

And once he got there the feeling become real strong. Sue and Bob started an arguement.

The Pilot, between flights, overheard, listened to the problem, and said, “I’ll tell you what, I’ll take you up flying, and if you don’t say a word the ride is on me, but if you bark one sound, you pay ten dollars.

So off they flew. The Pilot doing as many rolls, and dives as he could.

Heading to the ground as fast as the plane could go, and pulling out of the dive at just the very last second. Not a word. Finally he admited defeat and went back the air port.

“I’m surprised, why didn’t you say anything?”

“Well I almost said something when Sue fell out, but ten dollars is ten dollars.”