Category: Chat

Popular myths & little known facts

In my conversations with students during training and PPL holders during rating re-validation, some interesting myths emerge. So let’s put the record straight on a number of air law and licensing questions.

  1. It’s OK to fly outside the W&B (weight and balance) envelope as long as you have checked it’s safe, e.g. by a test take-off on a long runway. FALSE.

The PiC is legally required to assure himself that he is operating within W&B limits. And how would you know it’s safe other than by operating within the limits given in the POH? The manufacturer has worked these things out.

TIP –  It is so easy to calculate W&B, either on paper, spreadsheet or in an app like Skydemon. Consider making a handful of standard calculations – e.g. myself, flight bag + full fuel; myself, flight bag, wife + 90 litres fuel (= MTOM) – to which you can refer.

  1. The bi-annual instructional flight (the ‘1 hour with instructor’) must be done in the last 3 months of rating validity. FALSE.

You can do it any time during the last year of validity. However, the instructor or examiner can only sign your rating revalidation if you have met all the criteria (12 hours, 6 hrs PiC, 12 take-offs etc etc), so you might need to get the signature a bit later.

TIPS – get your 1 hour done early and don’t wait till winter, when the weather can prevent you flying. if you’ve met all the re- validation requirements early in the year, you can get the rating signed off and preserve the dates. There is no fixed agenda for the bi-annual instruction flight. From a ‘duty of care’ standpoint, most instructors will want to revise stalls, steep turns and a PFL, but in principle the instruction can cover anything. Find something that’s useful for you, such crossing CAS, short field techniques, bad weather circuits, night flying, even some instrument flight. The choice is yours and it’s not a test. You can ask the instructor to teach or demo something, or perform the manoeuvre yourself.  

  1. If I forget to get my rating re- validated by signature, I can always ask an examiner or any instructor to back-date it. FALSE.

The signature must be made before rating expiry date. And if it’s an instructor signing, ONLY the instructor who did your 1 hour of instruction is entitled to sign (don’t ask me why) although ANY examiner can do so.

TIPS – enter your revalidation dates in your diary – at least one month ahead of time. Get the signature at the time of the instructional flight, if at all possible.

  1. In order to accumulate IFR hours towards a CB-IR, I can record all my flights in VMC as IFR. FALSE.

You can only fly IFR (even in VMC) if you are qualified to fly IFR, i.e. hold either an IR or (IR(R) (the UK IMC rating).

  1. I can fly a 3-axis microlight on a PPL(A) and the hours count towards the 12 hours required for SEP re-validation. TRUE.

BUT….. in order to do so, you must first undergo differences training (by a microlight instructor) and get this signed off in your log-book. AND… for SEP re-validation, the 1 hour with an instructor must be in a SEP, not in a micro-light.

  1. If I hold SEP and TMG ratings, I can re- validate both with 12 hours etc flight time in the last 12 months, on both or either class. TRUE.

The hours are in effect inter-changeable. BUT… be careful. If your TMG and SEP ratings have different expiry dates, you must accumulate the hours and get the signatures while both are still valid.  If either of them expires, you must take a test (an LPC) on the expired class.

  1. If I enter controlled airspace by accident by less than 0.5 nm, or less than 100 feet, it won’t be recorded as an infringement. FALSE

Entering CAS without clearance, by any distance or height – however small – is an infringement and you can expect the CAA to take some kind of action against you. Airspace infringements are what are called ‘strict liability offences’, i.e. intent is irrelevant. All the authority has to do is to show – on the balance of probabilities – that you infringed. Evidence includes their radar and your transponder mode C output. Arguing that your transponder is inaccurate won’t wash, unless can get an engineer’s report to prove the mis-calibration.

TIPS – Why fly that close to CAS and risk it? Apply the Take 2 Rule – remain 2 nm away from and at least 200 ft (I prefer 300 ft) below CAS.  Do a transponder calibration check before flight: set your altimeter to 1013 and check it agrees with the transponder FL display.

  1. I am allowed 45 days leeway to fly after my medical expires. FALSE.

You can do the medical 45 days before expiry and preserve the dates, but you cannot fly after it has expired. However……

TIP –  a Class 2 medical lapses into a LAPL medical on expiry. So depending on what you are doing, you might be able to fly on LAPL privileges after the Class 2 expiry date. But LAPL privileges will also expire eventually and LAPL privileges carry further restrictions (aircraft weight, number of passengers, no night or instrument flight etc).

  1. If in my bi-annual instruction flight, I fly quite badly, the instructor can refuse to sign-off the flight in my logbook. FALSE.

He / she must sign it. But they may make an annotation ‘Further training recommended’, and they will discuss with you what additional training is needed. You would be well-advised to pay heed!

TIP – use the instructional flight to practice something you wouldn’t normally do and as an opportunity to get some (almost free) advice. Consider booking the instructor for a couple of hours so that you have time for a thorough briefing and for subsequent discussion.

  1. A listening squawk entitles me to enter Controlled Airspace. FALSE.

A Listening squawk merely signifies that you are listening on a particular frequency. You are not getting a service nor a clearance. You might reasonably expect ATC to warn you if you get too close to CAS, but that’s not guaranteed (if they are very busy, for example).

TIP – make sure you have set the corresponding frequency and have the radio volume turned up enough. Listen out in case they call you up, either by call-sign or by ‘aircraft in the vicinity of …..’

Get up and go!

We’ve added some more destinations to our Short Haul page – so as the weather turns more spring-like (and once the gales have subsided) why not venture somewhere new?

We’ll be updating the Medium and Long haul pages over the next couple of weeks.

Listen very carefully: I shall say this only once

I was out on a trip yesterday – beautiful blue skies, little wind, great visibility. It’s the kind of day which gets pilots of all abilities out of their arm-chairs and into the air. The controller on the Farnborough East sector was getting quite terse with pilots whose RT was sub-standard. It matters a lot when the frequency is busy – unanswered or incorrectly answered calls need more repetition, which just clogs up the frequency even more. In the worst case, it can create a safety issue.

Every radio conversation follows the same structure – a short contact call, a main message and a read-back or acknowledgement. And the main message has a consistent format: Who you are, What you’re doing, Where you are, What you want. Or more precisely for those fond of acronyms – CARPACeR: Call sign, Aircraft type, Route, Position, Altitude, Condition (VFR / IFR), Request. 2025 edit –  the CAA now advocate CARPAII: Call sign, Aircraft type, Route, (Departure, Destination), Position, Altitude, Information, Intentions (this is where you’d give significant turning points and request the Service you want)

Some ways to get it right

Know where you are, report where you are. There is a world of difference between being north of Farnborough and west of Farnborough! Sure, ATC may have radar and spot you, but you create doubt in the controller’s mind – do you know where you are, can you be relied on to proceed as instructed?

  • Think before you speak
  • Be accurate with your position
  • But don’t be excessively precise – ’west of…’ or ‘just west of…’ is often sufficient. ‘1.6 miles west of…’ is probably unnecessary.

Always read back a clearance or instruction – ATC need you to read back certain things, to check you have understood.

  • Don’t rely on memory alone; have a pencil ready to write down instructions
  • Develop your own shorthand to do this concisely

Don’t butt in to an ongoing conversation / read-back  

  • Listen out for a few seconds before transmitting
  • If you hear a pilot making a request that needs an answer, or ATC giving an instruction which needs reading back, wait till the exchange has finished

Listen out. I lost count of the number of times I heard G-NW… are you on frequency? G-NW.. radio check etc.

  • Listen out for your call sign
  • Make sure you have the volume loud enough
  • Don’t allow cockpit conversations to interfere with monitoring the RT
  • Advise before leaving the frequency, so the controller knows you have gone

Listen out when receiving a traffic service. Even worse than not listening out, is asking for a Traffic Service and then not listening to traffic advisories. What’s the point?

  • It is a requirement to read-back traffic advice with either ‘Looking for traffic / Traffic not sighted’ or ‘Traffic sighted’
  • Ask yourself whether a Traffic service is really necessary and appropriate for the conditions (visibility, traffic density, pilot work-load)

And other tips to help prepare

  • If not confident, rehearse your calls on the ground, and try to imagine or anticipate the ATC responses – it’s easy to do this in the car on the way to the airfield. We’ve all had to go through the RT learning curve
  • Brush up what kind of information you need to read-back, and when a simple ‘Roger’ or ‘Wilco’ is enough
  • Still not sure? Then get some advice from an instructor, or read some of the materials on this website
  • If flying with another pilot, why not share the work-load – assign one of you to monitor and respond on the radio.

 

Bad habits

Back in the spring, I was doing Flight Examiner training with our CFI. One of the training exercises is to conduct an LPC (Licence Proficiency Check) on a lapsed pilot returning to flying. You know how some comedians are excellent mimics? Well our CFI can mimic the rusty or inept pilot to a T. She demonstrated more bad habits in 30 mins than I have seen in several years of biannual instruction flights. For example….

  • Poor RT – not using the full call-sign in initial calls, not following the conventional message structure, incorrect expression of numbers etc.
  • Being unaware of listening squawks. Listening squawks are a good way to avoid infringing.
  • Taxi-ing – not holding the controls fully back (which is the technique for most (but not all) aircraft); not performing the taxi checks
  • Take-off – insufficient rudder use, so not remaining centred on the runway during the take-off roll
  • Rudder – insufficient rudder in the climb (which causes a gradual turn and sub-optimal climb rate); Not using a squeeze of rudder in entry to and exit from turns, causing a momentary slip or skid.
  • Landing – landing flat with insufficient pitch up in the flare. This is a very bad habit which one day could lead to a bounce, collapsed nose leg and broken aeroplane.
  • Over-reliance on GPS navaids – poor PLOG and chart preparation and plotting. A great way to get lost when the GPS fails! 
  • Poor height-keeping on cross country flight – getting dangerously close tho the base of CAS  another way to infringe!
  • Getting off-track – and failing to use a recognised (and simple) technique to regain track promptly. Another way of getting lost, or infringing, or worse still at low level, running into an obstacle.
  • Lookout – poor lookout in turns – a well known cause of airproxes.
  • Steep turns – failing to add power to maintain speed and altitude. This could result in a stall / spin.

These are easy habits to get in to and they are things which an instructor will be looking for during a bi-annual instruction flight. But why wait for an instructor? It’s worth doing a little self-assessment and critique now and again (what happened there? why did I do that?), so that these things don’t happen when the safety margins are reduced by high work-load, distraction or poor weather.

Mountain flying

When you read the words mountain flying, you probably think of the Alps, the Rockies or a French ‘altiport’. But there are some mountain considerations even flying in the UK.

Firstly the rules – there is an EASA Mountain Rating – and you must hold it to use some of the high altitude ‘altiports’.

Secondly, no qualification is needed to fly over mountains., just a bit of knowledge and common sense. Today I flew over Wales to Llanbedr, and this prompted me to write down some tips for flying over mountains which I first learnt in Colorado:

  1. MSA – take this very seriously! Aim to be at least 1000 ft above the peaks, and preferably 2000 ft for reasons that are revealed below. Remember that you should base your MSA on peaks on- and off- track. In poor visibility it is easy to wander. Granite hurts!
  2. Updrafts, downdrafts and turbulence – You can expect updrafts on the windward side of mountains, and downdrafts and turbulence on the leeward side. Today, that meant that -with an easterly wind- I found myself reducing power to avoid gaining height as I approached Snowdonia, and encountered a lot of turbulence in the descent in towards Llanbedr. Conversely on the return trip, it was mightily bumpy even at 4000 ft (1000 ft above the highest peaks of Cadair Idris at 3000 ft) but much smoother at 4500 ft.
  3. Fly the valleys or over the peaks? This depends how much you want to climb and how comfortable you feel flying up a valley with rocks on both sides. Fortunately, most UK mountains are low enough that we can generally fly over them – not the case in the Rockies!
  4. Plan your climb and descent – on the way in to Landbedr, I needed to descend from 4000 ft to circuit height – this needs to be gradual to avoid over-cooling the engine. A straight line direct routing may create a very abrupt descent. A slightly circuitous sightseeing route is maybe a good plan. Likewise on departure – I needed to get back up to 4000 ft before heading for the hills.
  5. Know your aeroplane – what climb rate can you expect at 4000 ft? Will a climb from sea-level to 4500 ft cause over-heating? I decided to remove my oil cooler baffle plate for the return journey.
  6. Keep your back-door open – in other words: know which way you will turn and what heading you will fly if something does not go according to plan – poor visibility, reduced climb performance, engine over-heating, severe turbulence etc.

And the by way, it was a great trip.

Something festive

Over Christmas I’ll be taking a few days off from flying. Since we have young children visiting, we have prepared for the arrival of Santa, and this year he will even be able to fly our new and highly unconventional RNAV approach!

There will be more blogs in the New Year; meanwhile I send all my readers Seasons greetings!

 

 

 

 

 

 

 

 

 

 

Partial power loss

From time to time, the CAA informs instructors and flying schools of topics which deserve additional attention. A recent one is ‘Partial Power Loss’.

We’ve all practiced EFATO’s and PFL’s, with an abrupt and total loss of power. Partial power loss is much more insidious. It’s easy to accept a poor climb rate, without realising what is happening, and there is always the temptation to keep pitching up to maintain a climb, resulting in a power-on stall.

There can be many reasons for partial power (e.g. plugs fouled, one magneto failed, fuel flow restriction, carb ice, failure of a constant-speed propeller mechanism etc etc) and they can occur at various altitudes. So there is no ‘one size fits all’ solution.

As general rules

  • maintain an airspeed not lower than best glide speed, or not less than Vx with obstacles to clear
  • understand what rpm in your aircraft is sufficient to maintain altitude
  • be ready for total power loss.

If you suffer partial power loss, first ask the question can I still climb? If so, climb to a safe altitude, and if close to the airfield, fly a close-in circuit and land. Don’t hesitate to make a PAN or MAYDAY call. If partial power occurs on a cross country route, and you can maintain altitude, them proceed cautiously to the nearest airfield and seek a straight in approach. Of course, I’d be looking for fields along the way, in case the engine fails. If you are not maintaining altitude, then a forced landing is inevitable, but the residual power gives you a little bit more choice and flexibility of location.

The ATSB in Australia have published a good document on the subject. It’s worth a read and can help think through some scenarios for our own aircraft. You may wish to try some of these with an instructor.

Weather decisions

It’s been a while since the last blog – I’ve been making the most of the exceptionally good weather. Forecasts for the last few days have included the possibility of thunderstorms and showers, so perhaps a few words on weather decision making are in order.

Some weather decisions are straightforward. If the observed cloud base or visibility are below VFR minima or your personal minima, you don’t go. If the cross wind is greater than the demonstrated aircraft limit, or your personal limit, you don’t go. You may think twice if the 2000 ft winds are greater than 35 knots: you could anticipate turbulence, ground speed into wind will be painfully slow, and the offset between track and heading may be confusing for cross-country navigation.

It gets a bit trickier if the forecast is poor but set to improve or vice versa. A BECMG trend in a TAF will always give a time range – so how to tell  when the weather will improve or worsen? Here are a few tactics:

  • Look at the actuals (METAR’s) upwind, and see what the trend is there. Similarly, you can call your destination airfield and ask what they observe.
  • Look at the visible satellite images on the Met Office website to see what the cloud trend is.
  • Examine the rainfall radar and observe how quickly the rain is coming in, and whether if is worsening or dissipating.
  • If similar trends have been forecast several days running, it may be reasonable to assume that the timing will mimic previous days. For example, in winter low cloud or fog early in the morning may be forecast to lift to reasonable VFR conditions later. Successive days have a habit of repeating themselves.
  • Use a more sophisticated tool like Autorouter’s GRAMET tool (details on our Planning >> Weather  page) for another interpretation of the forecast data.
  • Keep the back door open – it is better to fly towards forecast poorer weather, so you have the option of turning back. If you fly away from worsening weather, there is a chance that it will have arrived at your home airfield before you get back!

Another source of uncertainty are PROB30, PROB40 and TEMPO. With student pilots, we will often err on the cautious side i.e. assume these things will happen and not send them on a solo cross-country. But for personal flying, what shall we do? Here are a few tips:

  • ISOL and OCNL in the F215 mean exactly that – the phenomenon (typically showers) will be well-spaced, and it should be possible to fly around them.
  • TEMPO in a TAF means not more than 1 hour at a time, and not more than half the forecast period. So TEMPO +SHRA means we could avoid them by delaying our departure, or avoid a heavy shower at our destination by orbiting clear, if fuel state allows.
  • Weather radar is often helpful, as it can give an impression of how heavy and extensive the showers are, and also if they are intensifying or dying out.
  • And lastly, the trend observed on previous days may – if other conditions are the same (think temperature, pressure, air-mass type) – may also inform your decision.

Happy flying!

Hour building

Recently I was talking to a club member clutching his fresh and shiny new PPL licence. We discussed  hour-building prior to starting modular CPL training. Our chat prompted me to jot down some thoughts.

As for any new PPL, the first task is to stop training (!) and get used to being the PiC – taking your own decisions on whether, when and where to fly. It’s a good idea to start gently with a trip to the local area or a re-run of a past cross-country flight. Next, for many people, come trips with friends or family members. To begin with, it’s good to keep those flights simple too, as a passenger is a new and sometimes distracting experience.

After that spread your wings, making longer flights with land-aways at familiar and unfamiliar airfields. If needed, instructors can be tapped for advice on routing, RT calls and how to join the circuit.

Hour building is partly about honing accurate flying skills and RT use. Doing that on familiar local routes soon gets boring, and passes up a tremendous opportunity to gain experience. Consider doing some of the following:

  • Check out on a 4 seater, so as to travel greater distances, in greater comfort with friends
  • Get a cross-channel briefing and check-out so that you can take club aircraft to any number of nearby continental destinations
  • Buy Flyer magazine and use the free landing vouchers to prompt you to try new destinations
  • Include routes through controlled airspace and to bigger, busier airfields. As a CPL, this is the kind of environment in which you’ll eventually be operating.
  • Get your night rating over the winter months, to save time on the CPL course.
  • At some point, you’ll also want to complete the CPL cross country requirement (300 nm, 2 intermediate landings).

For ideas on where to go, take a look at our Destinations pages, and feel free to get in touch!

Spring destinations

I wrote this blog after a flight on a beautiful sunny spring day. However, I delayed posting it to avoid looking foolish, because the next day we were ankle-deep in snow again!

There is finally some evidence that spring is on the way: lighter afternoons, the occasional daffodil in bloom, and temperatures now climbing towards double figures. Not yet time to get out the shorts, but perhaps time to dust off the sun-glasses and make the first cross-country trips of 2018.

Take a look at our destinations page for some ideas for short trips.