Daily Inspector and last flight of the day

Saturday 8 May 2010


I’m finally up to date with my blog! This weekend I came out to the club primarily to finish the DI course, with hopes of also fitting in a circuit or two afterwards. The DI course was to start bright and early out at the hangars and it was a cool sunny morning. The car’s thermometer read 9˚ Celsius as a drove through the gates at 8.15am. It was quite still on the ground and I was surprised to see a partially deflated balloon on our strip. A Sydney company, Balloon Aloft, operates out of Camden and this was the first time I had seen them here. As one balloon on the ground was being packed away, two more were approaching from the south-west. Apparently there was a SW wind aloft and they were using this to come back to Camden. As I watched, a second balloon descended for a perfect landing on the glider strip.

How do they do this? The third balloon apparently missed his slot and crossed overhead at about 1,000 feet to land east of the field, but two out of the three balloons landed where they wanted to, simply using what wind there was.

Apparently, the balloonists launch things called Pibals (short for Pilot Balloons) and then track them to judge ascent rate and winds aloft. Apparently they used to do this with special theodolites combined with lights on the balloons. Fascinating.

The second day of the DI course was interesting and involved getting hands-on with two aircraft – the club’s K-13 (complete with trick airbrake handle) and the single seat Astir, carrying out DIs in small teams (there were 6 of us doing the course) complete with little “traps”, being briefed on the idiosyncrasies of the different club aircraft and then finally pulling bits off to see how they work – the tailplane on the K-13 and the tailplane and port wing on the Astir. After this (all of us passed the course) I got to sign off an independent control check of the K-13.

The course finished about 2.30 pm and I headed down with some of the participants to put my name down to fly. I ate a late lunch and then watched the gliders and power planes doing bumps (including a nice little Chipmunk). It was a lovely calm Autumn day, and warm at about 23˚ C and there was lift to be had (a couple of guys in the club’s DG-1000 had a flight just short of 4 hours), but by the time my chance for a flight came around, it was the last flight of the day. I climbed into the K-21 with half the strip in shadow and took a tow to 2,000 feet in lovely smooth air. After release I obscured the altimeter with a little suction cup provided by the instructor and marvelled at the lovely late afternoon light as I wandered about south of the strip. I concentrated on constant speed coordinated turns at 50 knots until I judged it was time to join the circuit. There were no other aircraft up at that time (getting on to 5.00 pm) so it was a calming, smooth flight, with the field in full shadow and the last afternoon sun on the Razorbacks. I managed the circuit well I thought, and after my landing the instructor (who had been having student flights all day) said “you didn’t scare me once”. He wrote in my logbook “Flew a good circuit and landing” which I was most happy with.

After the flight I stayed to pack away gliders and the tug, then carried batteries back to the clubhouse, leaving well after dark. Satisfying.

Air cadets

28 February 2010


Further to being a useful gliding club member, I volunteered to help some of the club members (ex Air Force and/or Air Force Reserve) operate a flying day for the local Air Force Cadets. About 20 cadets would have flights in a club two-seater through the day and there was a call via the usual email contact for members to help out.

I arrived early as usual and helped get the aircraft ready and listened in to the briefing of the cadets, I was offered (and accepted) a quick first flight in the K-21 before the cadet flights began (about 10.00 am). The day started as still, with a misty sky and high cloud. No thermal activity at all and so perfect for circuits. Tow to 2,000 feet was the smoothest I’d ever felt. I could have flown the tow hands-off I reckon.

No lift, but no sink either once I was up there. I worked on judging the break-off point and angles to the strip. I flew my circuit a little wide and still ended up a little high (turned in a bit too early), had to get a fair bit of brake out, then was able to put some away and come in on half brake. I felt more comfortable managing the brakes to keep the aiming point where I want it than I had for a while.

I lost a little directional control on the ground though and end up slewing a little left in the landing run. Not sure what happened. But man, the wheel brakes are good on the K-21, unlike any other glider I’ve flown.

After this first flight (14 minutes), I helped out with getting cadets strapped in, briefed and launched, including making sure each of them participated in a launch – retrieving the tow-rope, signalling the required tow height to the tug pilot, hooking on and waving off etc.

There was lots of this and as the day progressed the weather heated up and the unmistakable signs of an afternoon thunderstorm could be seen in the west (unusual, the usual direction for summer thunderstorms in Sydney is the south).

There were other club members flying in addition to the cadets and at one point, later in the afternoon, the club’s DG-1000 was without a taker. I quickly took up the offer (though I found the DG a handful on my last flight in it, in Cootamundra) and took a tow to 2,000 feet for more circuit practice. Not a remarkable flight and I was happy with my circuit, approach and landing. My instructor wrote “General flying good, work on circuit.”

After a few more launches for the cadets, we’d got the last of them off as lightning started to flicker and a wall of black cloud built up. There was a dramatic storm later, which I raced ahead of down the M5 Motorway home.

Another weekend out west

I’m really cramming some flying into my time in WA and once I again I hired a car and drove out to Beverley early on Saturday morning to arrive in time for the briefing. The plan this weekend was to concentrate on judging height and angles in the circuit. First flight was in the ASK-21 (BSS) and was to 2,000 feet with the altimeter obscured. During the tow we practiced hang-up procedures (what to do if the glider’s tow release doesn’t work), plus the signals from the tow pilot to the glider pilot to check that airbrakes aren’t open, and the wave-off sign. During the tow the instructor asked me to judge our height a number of times and each time told me I was very close, which was heartening.

I’ve always been a bit nervous during instrument-obscured flights and I tend to fly a bit messier than normal and this was the case in this flight, though I was happy with my judgement of height and angles in the circuit.

The next flight (which was by then late afternoon – there’s a lot of waiting around and helping with launches etc in gliding) included boxing the tow “very well done Brian” says my instructor, and then a gentle flight in the beautiful late afternoon light. There was little lift left, though I found and hooked onto a small weak thermal over the town for a gain of a measly 200 feet at 1-2 knots. Finally, I joined downwind and of course this was the only place where there was ample lift, so I had to extend the downwind leg even for this hangar flight. I was happy with my approach and landing.

The next day (the Sunday) was busy, with 5 flights - more circuits with the altimeter obscured and a simulated rope break and ending with a hangar flight in the Pooch. All in all I was happy with my progress and only sorry that my time in WA was coming to an end.