Photo File – Summer Snappin’

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All photos me too, copyrighted

While the summer season of 2018 was not really my most productive one (and is far below the bar set by 2017, which gave us classics such as this and this and particularly this), it nevertheless was not a total bust photography-wise. While I’m still smarting from having missed a couple of proper Achtung, Skyhawk! classics by mere minutes (including a Dash 7), I’ve still managed to hoard enough quality material for one jolly Photo File, to at least keep the ball rolling until something else comes up… 🙂

Silver Eagle is silvery! Easily the most popular aftermarket conversion for any Cessna piston single, the Silver Eagle mod entails a major rework of the classic 210 powerplant, substituting its original 310 HP Continental TSIO-520 six cylinder boxer for a 450 HP Allison/Rolls-Royce 250-B17 turboprop – the same type of engine fitted to the most popular helicopter in the West, Bell’s JetRanger. While just the power increase sounds worth the trouble (and cost), the conversion’s real party piece is the engine’s high mass flow, a trait inherent to all turboprop engines. The classic P210 had made its name for its 23,000 ft ceiling, full cabin pressurization and a pneumatic de-ice system for the wing and tail surfaces – all services that require a tremendous amount of compressed air. To cater for all of them, the turbocharger had to massive, which increased weight, maintenance complexity – and occasionally made the engine tricky to operate (especially with regards to shock cooling). Since half of a turboprop is essentially just a large compressor, it handles so much air that it can keep everything sufficiently supplied while still providing a care-free high performance experience – and all for a 158 kg wright reduction (the 250 tips the scales at 96 kg dry vs. the 254 of the TSIO). N700RS also features a frequent optional extra, a weather radar housed in a streamlined dome below the right wing.

Just when I thought it would be G400/G500/G600s or nothing for me here in Europe, into the mix comes this immaculate classic G-III. While you do have to stare at it for awhile to recognize it as an older model, its dead giveaway are the engines, old Rolls-Royce Spey units that are sufficiently loud to warrant the addition of “hush kits” – aftermarket (but certified) silencers that improve mixing between the exhaust gasses and ambient air and reduce the shearing forces between than that are the main “source” of jet engine noise.

Another meeting with the very colorful LY-DSK, which I already had the chance to snap – and elaborate on! – in a previous post. Thankfully, Split Airport (SPU/LDSP) had recently decided to park most of its surplus aircraft steps right on the edge of the GA apron, affording plenty of opportunity to go elevated!

Got contrast? The only proper way to end a working day – with a beautiful GA classic! One of the last mass-produced touring types developed by Italy’s traditional large manufacturers, the original S.205 was conceived in the mid 60s along similar lines as the contemporary Piper PA-28: a simple but versatile aircraft that could be developed into a diverse product family with comparatively little effort. To this end, the basic four-seat fixed-gear S.205F was quickly followed by the retractable S.205R and the more powerful five-seat S.208 – with the top of the range dominated by the planned six-seat S.206 and the S.210 twin. Unfortunately, despite the type’s undoubted qualities and robust build, it would nevertheless never fulfill its potential, SIAI-Marchetti having always lacked the production capacity, support and market reach of its Big Three rivals across the Pond…

The primary towplane of the Celje Flying Club intimidating ants as it awaits the start of the afternoon soaring session at Slovenia’s Celje Airfield (LJCL). An aircraft with a history dating all the way back to 70s Yugoslavia, TNC had during the early 2000s been a resident of my base airfield of Lučko (LDZL), where it had intrigued me – a green student pilot – with its unwieldy and lumpy looks. Despite not being easy on the eye, the Pawnee had far outlived its original role of cropduster, becoming the staple of glider clubs all over the world.

“Molki” throwing out the anchor as it decelerates after a training flight round the Celje Airfield (LJCL) circuit. Developed in the late 80s based on operational experience from the original L-13 Blanik, the L-23 came equipped with a completely new swept T-tail, a slightly larger cabin with new high-vis canopy (one piece on later models, such as this one) – and a revised wing that did away with the 13’s large flaps. Though it had bettered its dad in almost all respects, the Super Blanik would nevertheless fail to replicate its market success, with only limited numbers having been sold in Europe. Interestingly, the type had made somewhat of a name for itself overseas, with 12 examples used by the US Civil Air Patrol as trainers under the designation TG-10B Merlin.

Mirror mirror on the apron, which Learjet should I escape on? The 55 Longhorn you say? No problem! The first of the so-called “large cabin” Learjets, the model 55 was intended to be the starting point for a whole series of “premium” models (such as the shortened 54 and lengthened 56), but a tough market and lots of competition in the early 80s meant that the 55/55A/55B and 55C was as far as it ever made it. Even though the family would later serve as the basis for the very successful 60 series, the 55 was nevertheless a total sales flop, with just 147 having been sold during an eight year production run. Of particular interest is its Longhorn nickname – after a breed of Texas bull – which actually has a long association with the LJ line. The first model to carry it was the mid 70s 28, which had swapped the original 23’s characteristic tip tanks for a pair of imposing, NASA-designed winglets – becoming the first production bizjet to be so equipped. As they became a standard feature on all future Learjets, the Longhorn name was left to slowly fade, eventually dying out with the 55…

For most, a bunch of useless old relics… for Learjet fans, pure pornography! Winglets vs tip tanks as the very attractive fleet of Munich (MUC/EDDM)-based Jet Executive catches some rays on a beautiful summer afternoon. A round of beer for the folks responsible for keeping these machines in the air!

No horizons in the future for Future Horizon as it continues to deteriorate for another year in a remote corner of Dubrovnik Airport (DBV/LDDU). Not a stranger to my camera, DGS was the odd man out in the fleet of MD-80s operated by Air Adriatic, one of Croatia’s first post-independence private airlines (though it was actually owned by a local investment company). Formed in 2001 and well known locally for giving its aircraft names that bordered on the cheesy, Air Adriatic would eventually fold in 2007 when its finances were exhausted, leaving the fleet stranded at various airports in the Balkans. While some of its MDs did survive in some form or another (as fire trainers of museum exhibits), DSG today remains pretty much the last visible example of the carrier’s existence…

I go and visit Lučko for the first time in a month and straight out of the gate have this to see: 280 HP, 350 km/h, 20,000 ft – and a bucketload of charisma characteristic of all Mooney designs. Ever since the original single-seat M18 Mite, all of the company’s aircraft could boast impressive speeds for their power, outstanding performance and flight characteristics all round – and dragging tails with “flipped” vertical stabilizers (which Al Mooney claimed improved yaw control in a stall). Even though it had been under Chinese ownership for some time now, today’s Mooney remains true to its origins, with the top-of-the-line Acclaim Type S pushing a jaw-dropping 470 km/h with a turbocharged version of the Ovation’s engine… (and for those interested, the small mosquito at the top of the screen is actually Mi-8MTV-1 “215” of the Croatian Air Force)

EDIT: and a bit of video as well… when you need a break from boring a hole in the sky, you can rent a Skyhawk and go get in the way at a neighboring airbase. The guy up in the tower must have died laughing: PC-9s regularly fly high speed breaks down the runway, occasionally even F-16s “request permission for flyby”… and into the mix comes me with a 40 year old 172 doing a blistering 125 knots…

Short Photo File – Out of Africa

By me
All photos me too, copyrighted

Well, not really Africa geographically – but that was my first association when I stumbled upon a Diamond DA-62 and CERVA CE.43 Guépard (cheetah) on the Dubrovnik Airport (DBV/LDDU) GA apron 😀 (it may be corny, but it works for me!). After a photographic dry spell, this unlikely pair has been a godsend for me – and since both types have a bit of a (hi)story behind them, they were the perfect match for a quick & dirty Acthtung, Skyhawk! feature… 🙂

The past and future of light aircraft design in Europe… but even though the DA-62 is a vastly superior machine on all levels, one cannot but be drawn to the charisma of the lumpen – but incredibly rare – Guépard…

Diamond DA-62, ES-KEN

Guaranteed to catch more than one eye at any airport, the regal DA-62 is Diamond’s current flagship propeller product, a seven-seat grand tourer clothed fully in carbon fiber and pulled along by twin 180 HP Austro Engines AE330* four-cylinder Diesels. While the overall power available sounds underwhelming given the speedy look of the 62, the engines deliver quite a bit more than the raw numbers suggest, with a 190 knot high speed cruise doable on just 17 USG of Jet A per hour combined – a figure more common to a single engine of a similarly sized classic twin 🙂 .

While at first glance it seems to be just a stretch of the ubiquitous DA-42 Twin Star, Diamond’s construction technique – basing each type around a custom carbon fiber shell instead of a traditional frame used on metal aircraft – means that the 62 is a whole different animal under the skin.

This turn of performance – and the depth of engineering hiding under the carbon – means that the polished Diamond is perfectly capable of standing with the best of the classic luxury piston twins, including even the default standard, the Beech 58 Baron. Compared to the current production-standard G58**, the DA-62 carries the same load (710 vs 705 kg) and cruises all out just a teeny bit slower (191 vs 202 knots) – but does so with 240 HP less and at roughly HALF the fuel flow (19 vs ~ 33 USG/hour). Not a bad showing from a small company operating out of an equally small town in Austria!

ES-KEN itself – the 43rd DA-62 made – had on this day stopped for rest at Dubrovnik (DBV/LDDU), before continuing south to its new home at Tivat (TIV/LYTV) in neighboring Montenegro 🙂 .

* of interest, the AE300 series represents Diamond’s own modification of the 2.0 liter turbocharged Diesel out of the Mercedes A and B Class compact cars – the same engine that was the basis of the now-defunct Thielert Centurion 2.0 (the earlier Centurion 1.7 was based on the smaller, 1.7 liter version of the same unit).

** of course, this brief comparison does not take into account operational factors not related to outright flight performance, such as price, maintenance requirements and availability, fuel costs – and specific aircraft ability, such as the Baron’s ability to operate from rough strips thanks to its robust, Bonanza-derived landing gear.

CERVA CE.43 Guépard, F-BXCO

There are two types of airborne visitors to the Croatian coast – those who fly cattle class, and those who go classic piston single class. Another of those beautiful gems that make aviation photography so rewarding, F-BXCO had instantly caught my eye even tucked in among the high-speed carbon fiber pornography lining the GA apron.

At one time called “France’s Bonanza killer”, the somewhat ungainly Guépard can trace its roots back to the nowadays-forgotten WA.4, a late 60s four-seat steel-fabric-and-plywood training and touring aircraft designed by Wassmer, the country’s most famous glider manufacturer. One of the first French light aircraft designed around the more marketable usability and practicality principles used in the US, the WA.4 had benefited greatly from Wassmer’s glider experience, with pleasant, predictable handling and very good all-round performance provided by its 250 HP Lycoming IO-540 engine. Spurred by the type’s success on the French market, the Wassmer works had soon decided that an all-metal version could be an even better sell, teaming up with engineering company Siren SA to make this idea come true. Since French manufacturers have always had a thing for mergers and complicated names, the first thing to come out of this partnership was the CERVA joing venture, short for Consortium Europeén de Réalisation et de Ventes d’Avions – or the European Consortium for the Development and Sale of Aircraft.

Essentially just slapping a fully-metal skin onto the WA.4, the new consortium had quickly created the WA.43 – soon to be renamed CE.43 – France’s first proper, modern and “international-standard” touring machine. But while it looked, sounded and flew like an American aircraft – not to mention boasting a bum-numbing 7 hour endurance – it would nevertheless always be the product of a small company in rural France, a fact that had immediately put it at a market disadvantage compared to equivalent aircraft from the much more industrious Big Three (Beech, Cessna and Piper). This disproportionate footing – which had already killed a number of European designs – would be fatal for the Guépard as well, with only 44 manufactured between the type’s introduction in 1971 and Wassmer’s bankruptcy in 1977… and most of these on request of the French Air Force. In a last ditch attempt to save the ship from sinking, CERVA would in 1976 attempt to market two higher performance versions, the CE.44 Couguar with the 285 HP Continental Tiara 6*** engine – and the CE.45 Léopard with a turbocharged Lycoming TIO-540. However, only a handful of each version were built before the type as a whole ceased production...

F-BXCO itself was manufactured in 1975 as the 30th Guépard off the line – and, according to available info, had always flown in civilian hands.

*** one of the very few US post-war piston engines to actually have a “proper name”, the Tiara was Continental’s 1970s shot at making a next generation powerplant that would appeal to manufacturers (and owners) of the type of high-performance piston singles that were becoming rapidly popular at the time. While it still retained the traditional boxer layout and most of its mechanical workings (including bog-standard fuel injection and optional turbocharging), the Tiara was from the outset conceived with a small cubic capacity (405 cu in for the six-cylinder version used on the Guépard) and high rotation speed (up to 4500 RPM) in order to get the maximum power and efficiency out of the least amount of engine. The central element to making this work was a special reduction gearbox called “Hydra-Torque”, which both lowered propeller RPM to half the engine RPM (0.5:1 reduction ratio) and dampened the various vibrations and stresses commonly experienced on traditional geared engines (more detailed info available here). This – as well as tweaks to the engine’s various components and accessories – made the Tiara quite a bit lighter and smoother than a comparable engine, traits that Continental had hoped would appeal well to buyers wanting a quiet, comfortable and dignified Mercedes of the skies.

However, while this was all fine and dandy in theory, the engine did have a number of noticeable drawbacks. In some airplane installations it was quite loud – and in ALL installations it tended to drink like its much bigger siblings. Coupled with different (and more expensive) maintenance requirements on account of the Hydra-Torque system, this made the Tiara scarcely worth the bother over a traditional large engine – and is viewed in some quarters as an unnecessary attempt to “reinvent the wheel”. Despite this, it did manage to find its way into a number of aircraft types – and would, interestingly, achieve some popularity in France, having also been installed into the Robin HR.100 (creating the 285 HP HR.100-285 and 320 HP HR.100-320).

Bonus content – Mr. Mooney & Mr. Scheibe

Since I’ve been going on a lot about rare aircraft in general of late, I thought I might as well continue the trend here and slot in two more oldies I’d come across over the course of this month. Not really on the same level as the CE.43 in terms of outright rarity – few machines are – they’re nevertheless a sight for sore eyes, and well within Achtung, Skyhawk! tolerances! 😀

And the classics just keep on piling up! Having already snapped a brand new DA-62 – and the incredibly rare CE.43 – the day before, I was smitten to find a mint Mooney M-20F at a rainy Split (SPU/LDSP). The last of the type’s snub-nosed models, the F was the final development of the original M-20A before the design was cleaned up by famed aerodynamics specialist Roy LoPresti in the mid-70s, resulting in the highly-successful M-20J. Even though it’s not as rare as its looks suggest, finding one is definitely a treat – especially since D-EJHE is celebrating its 50th birthday later this year!

Some people love oldtimers of the road… while others love oldtimers of the air. Manufactured way back in 1958, this very rare Bergfalke – “mountain falcon” in German – perfectly encapsulates just why I love tooling through hangars at small local airfields. A thoroughly upgraded version of the mid-30s Akaflieg Mü13 glider, the Bergfalke had upon its introduction in 1951 quickly laid the foundations for what would become Schiebe Flugzeugbau – and served as the basis for the company’s most popular aircraft, the SF-25 Falke Touring Motor Glider (TMG). Another interesting factoid is that the type had been manufactured mostly at Riem, the main international airport for Munich until the opening of the current MUC on 17 May 1992… E7-1112 itself (latterly known as D-8241) is nowadays on service with the AK Livno flying club at Livno Airfield (LQLV), where it had arrived just recently as a – donation. Despite its advanced age, it is still a frequent flyer, and – according to the club – can hold its own even against more modern metal gliders.

Photo File – Spring Is Coming…

By me
All photos me too, copyrighted

As is usual for this time of year, the ever-improving weather conditions (with the inevitable hiccup or two) have slowly started waking the local GA scene from its winter stupor. While operations are still very much in the 7 AM pre-coffee stage, life is nevertheless returning to airfields across the land, with planes, gliders and helicopters being dusted off for the coming spring. Naturally enough, I had once again decided to snoop around and check on proceedings, hoping to capitalize on the calm before the storm… 🙂

One happy little bear roaring away during a late-afternoon engine test. Even though Lučko had still been closed at this point (its grass runways soaked), AK Zagreb had decided to use the time well and send DBS through a post-overhaul shakedown…

Clean and tidy following deep servicing, GPA waits for its turn to be parked in the hangar after its first flight of the year. Even though it carries the Pilatus name and sports the designation PC-11, this type had actually originated in Germany in the mid-60s as a product of a small group of up-and-coming engineers. Initially called the B4 after Gert Basten – the owner of the factory that had manufactured the prototypes – the design had not entered series production until the mid-70s, when it was acquired by Pilatus. Praised for its simplicity, robustness and quality of manufacture, the AF version can boast respectable aerobatic capabilities, a role in which it is still used worldwide. GPA itself had been manufactured in 1977, and is today one of seven examples listed on the 9A register.

Hands down one of the most unusual aircraft that can be seen in Croatia, OE-9129 is seen firing up for an entire afternoon of glider towing. Essentially a motor glider itself, the HB-21 was conceived in Austria during the 60s, and is in this form powered by a 100 HP VW engine mounted behind the cabin – and driving a unique pusher prop arrangement integrated into the aircraft’s backbone.

When the sun sets and the temperature drops, normal pilots go home… but then, with the rising fog, come those who wander around with big cameras. Having a bit of fun with Piper PA-28RT-201 Arrow IV 9A-DCB and Cessna 172N 9A-DMG, on a December day – albeit not unlike many found in spring.

Instantly recognizable among Čakovec Airfield’s (LDVC) fleet of gliders, YU-CPE is seen providing a suitable metaphor for Yugoslav aviation as it waits out an uncertain fate by collecting bird droppings in the corner of the hangar. An aircraft much of 60s and 70s Yugoslavia had learned to fly on, the indigenous Aero 3 had over the years garnered a reputation as an unforgiving and sometimes difficult to handle trainer, which had over the years claimed a number of lives. Despite this, the design – made almost entirely of wood and powered by a 190 HP Lycoming O-435 – is viewed with today increasing nostalgia, resulting to several attempts at preservation and restoration. Sadly, given the lack of spares (only 100-ish having been built) and the financial requirements of such work, only one machine had been returned to airworthy state, with the rest left in limbo… (including its brother, Lučko’s own YU-CPC/9A-XPC)

Even though it was pretty much the only aircraft on the apron at Split Airport (SPU/LDSP), N828PA nevertheless proves that quality is still better than quantity! Still a rare type in Europe, the Eclipse 500 was the forerunner of the Very Light Jet (VLJ) category, “pocket” bizjets that were both simple and cheap enough for owners to fly themselves – while still providing better performance than traditional business turboprops. N828PA itself was completed in 2008, and is one of the last examples manufactured before the company filed for bankruptcy. It would eventually be restarted in 2009 under new ownership, rolling out an improved model – the Eclipse 550 – in 2013.

And finally, something that doesn’t really fit all that well into the GA category – but is nevertheless worthy of note! Soaking up the noon sun, 6M-BH of the Austrian Air Force had popped into Zagreb (ZAG/LDZA) to take on fuel before continuing northwards to Varaždin (LDVA), where it would provide transport for an Austrian presidential delegation attending a regional summit. An interesting detail here is its designation; even though the name “Black Hawk” is almost universally associated with “UH-60”, export models are often labelled as S-70, which is the manufacturer’s official designation for this type.