Category Archives: Gliders

Soaring in the snow

I have been very fortunate to have met some great people soaring in England. I’ve had the pleasure of flying with three different clubs. Over a recent long weekend, I had arranged to visit two of those clubs and work on aerobatic flying. My four-day trip did not go exactly as planned, but this is not about that or aerobatics even.

I’ve often admired the English countryside with hedges dividing fields of many different shades of green. This time, the hedges outlined fields of white snow.

The first day at London Gliding Club (LGC) I was found safe to practice solo aerobatics the next day (Note, “safe” is not a synonym for “good” or “proficient.”) When I went to bed, the forecast had potential. When I got up the next morning, the real world had snow!

The tow plane is from a company called Avions Robin in France. I visited the factory once in 1987. The LGC clubhouse and hangar are visible just above the cockpit.

At the glider field I spoke to the tow pilot who told me he was getting freezing mist on the canopy at 4,000 feet. The sky was completely covered, with little to no horizon. It’s hard to do aerobatics in the clouds. No visible horizon doesn’t help either. Aerobatic flying was out, but I heard someone say, “There’s wave over Tring Road.” I know where Tring Road is!

The wing runner has the tow rope, ready to connect it. Two more crazy people ready to fly. The glider is an ASK-21, the most common training glider in the world.

I added myself to the launch queue and waited my turn. I asked instructor Alan Harrison if he would go with me. Even though I had flown the day before, flying with heavy clouds in the air and snow on the ground was something new for me. “New” started with the takeoff’s ground run.

Most of my friends think I’m pretty crazy, but look at this, I am nowhere near alone in trying to fly. Ready to go, too? Ridge in the background.

Important background: 1) gliders are normally airborne before the towplane, 2) LGC’s runway is described as “undulating” grass, and 3) any takeoff is longer on snow/mush/etc. The takeoff run at LGC starts down a long slope, does up then down a short slope, then up a longer one. The tow plane rolls over the crest of the middle hump, with me already in the air. I can’t get too high without putting the towplane at risk. He’s rolling down hill as I’m flying up. However (There’s always a “but” or a “however”!) the ground is going up faster than I am. Bump! I’m back on the ground and roll over the hump, back in the air again. This, of course, put a brief, but noticeable load on the tow plane – further lengthening the takeoff run.

Looking at Dunstable from about 2,000′. The glider field and ridge are are on the other side of the glider. This is about where we found the best lift.

Finally we’re both in the air. Motors and wings perform well in the cold. We climb to 3,000 feet and release in light wave. For the most part, there is only enough energy to reduce sink from a typical 2 knots to about 0.5kts. Even if we’re “only” going down more slowly than usual, that’s a good thing. Woosh! Glider pilots know the feeling of upward acceleration when entering a thermal. Alan and I felt a strong upward shove as we found real lift. We worked hard to keep ourselves well within that lift for several minutes. You already know where this wave was, right? Yes, right over Tring Rd.

Diagonally across the picture you see the Chiltern Ridge that LGC is famous for. Centered is the takeoff/landing area.

The view from the cockpit was incredible. I’ve often admired the English countryside with hedges dividing fields of many different shades of green. This time, the hedges outlined fields of white snow. And, my iPhone was inaccessible in my pocket. Thankfully, Alan had his phone and took several pictures.

The northern end of Chiltern Ridge has a hook or bowl. I actually hovered over this spot once, matching my airspeed to the speed of the wind, giving me a ground speed of zero.

Many thanks to Chief Flight Instructor and manager Andy Roch for hosting me and to the fine instructors who flew with me.

PS The wind came from behind the ridge and down its front. I suspect this was an example of “hydraulic jump” where the wind actually ricochets off the ground and back up. You see this with water flowing over a dam or spillway.

London Gliding Club viewed from the top of the ridge. The “undulation” in the takeoff run i clearly visible.

Silver Distance at Wave Camp? Almost…

The words “wave camp” fire up a strong feeling in most glider pilots. I took a week off from work to fly out to Minden, NV, for the 2015 Wave Camp. It was well worth it.

Besides the cool factor, the purpose of Wave Camp is to get badges. I was hoping to achieve Silver distance (50km) and Gold altitude (3,000m altitude gain). The altitude gain could take place anywhere in the wave, and I picked turnpoints 52km apart for the distance.

I ended up flying further than I had ever flown in a glider, higher than I’ve ever flown anything, in the air longer than any previous flight,

The hat is crooked. My neck is pushed out from the reclining position. I'm really much happier than the look on my face!
The hat is crooked. My neck is pushed out from the reclining position. I’m really much happier than the look on my face!

and at one point had the highest ground speed I’ve ever had. That flight broke all my personal flying records. But, no badges.*

17M Kestrel, the first glider I've flown with flaps.
17M Kestrel, the first glider I’ve flown with flaps.

Through a series of emails with the Civil Air Patrol folks in Minden, fellow instructor Fred Lasor graciously offered the use of his 17m Kestrel. I made four flights in Fred’s Kestrel and would love to fly it again. However, since I remembered to put the gear down each time, no one will care about anything but the last flight.

Fred's 17M Kestrel, looks really dramatic in this shot.
Fred’s 17M Kestrel, looks really dramatic in this shot.

Takeoff was uneventful, as was most of the tow. There was none of the traditional rotor that had been discussed in class. I released in what I thought was good lift, but immediately began to sink. A quick turn back stopped the sink. A few minutes later I was slowly climbing. Very slowly.

Minden is famous for thousand-feet-per-minute wave. So why did I only have 50 feet per minute for the first hour? I don’t know either, but it took me an hour to gain the first 3,000 feet. I think I worked harder to stay up that hour than on any flight before. After surviving the first hour I was able to gain almost 200 feet per minute for a while.

Eventually I had gained a few thousand feet and was ready to push off on a big flight. Heading south I maneuvered to stay in the wave. There were only a few clouds, so it was not well marked – no lennies or clear line marking the wave. I pushed south, turned back, then back south again. I could see my southern target in the distance, but there was a clear gap in the mountains between where I was and where I needed to be. I chickened out.

A beautiful view out the left side of the glider.
A beautiful view out the left side of the glider.

After bailing out at the southern end, I decided to try going north. There was a bigger gap to the north, but Fred had given me some tips on what to do. The wave was stronger, I was higher, and decided that the wave would really be where the terrain said it would be. I was high enough to cross, miss, come back and reconnect with the wave. The only reconnection was on the other side of the gap. I was across! I overflew the turn point and turned south. The view ahead of me was something I had never seen before. I was looking south along the back of the western Sierra Nevada mountains. I could see Lake Tahoe down to the right and ahead just left of my intended track a long line of clouds.

I thought, “This is it. This is going to be what wave flying is all about.” I pushed the Kestrel’s flap lever into the highest speed setting, pitched for 70 knots, corrected for the wave’s crosswind and FLEW! I was climbing at 200 feet per minute while flying at 70 knots. I’ve never seen that before!

I just kept going. And going. I flew south to where I had chickened out and just kept going. After making the northern jump in both directions I felt confident to try the southern one. I had reached 18,000 feet, so I had plenty of height to overfly my southern turnpoint even if I flew out of the wave. The wave was fading slowly the further south I flew, but it never went away. I was still in wave as I overflew my southern turnpoint – Alpine County Airport. (Or, so I thought.)

KMEV - aka Minden-Tahoe Douglas County Airport. Do the crop circles mean there are aliens here? Hmm.
KMEV – aka Minden-Tahoe Douglas County Airport. Do the crop circles mean there are aliens here? Hmm.

The flight north was uneventful. I played around with the wave for a while and decided to land. Little did I know what was coming.

The rotor going into the wave was minimal. The wave was generally so light that I didn’t expect anything bad. There’s a saying in flying that “take off is optional, landing is not.” The descent from 16,000’ over the valley to the 6,000-foot pattern altitude over KMEV was 45 minutes of the most violent, most brutal flying I have ever done. Bam, up, but I want to come down. Bam, down, but I sure don’t want to be coming down THAT fast. Oh, wait, up again. Tighten the seatbelt. Down, up, up some more, down. Belt tighter. DOWN! UP! Gear down and locked. Brakes out. Back in. Out. In. Then incredible quiet. So smooth. Time to land.

*It turns out that I missed the southern turnpoint by more than is allowed. I didn’t realize how much of the view the nose blocked from more than two miles above the ground. The wave experience was great, and I’m ready to go back and repeat the flight.

The world looks different from this altitude. I can't wait to try to go higher next time!
The world looks different from this altitude. I can’t wait to try to go higher next time!