Jump to content
Stephen

Classic Aircraft : Rutan Model 61 Long - EZ by VSKYLABS

Recommended Posts

VSL LongEZ_Header.jpg

 

Classic Aircraft : Rutan Model 61 Long - EZ by VSKYLABS

 

In the early evolution of aircraft design it was the singular force of an pioneer engineer that drove the design and innovation. Think of the names of Curtiss, Boeing, Douglas, Hawker, Dornier, Junkers, Hughes and many more. But as the designs became more complex and they required more od the differential skills then most of these individual pioneers were replaced with teams or companies to build the aviation industry into what we know today, most of these manufacturers were still exceedingly clever in what they produced, but were also very conservative in the same sense in that their expensive products had to also be sold and be highly reliable, and so the maverick pioneer of the early times was reduced to the outcast nutjob the dreamer who lacked funds to create their designs. The only major aviation advances then mostly came from the expensive military aspect of pushing the boundaries, and then out into space itself. But one man in the last half decade has still been a total maverick an honor back those earlier pioneers and in the process has turned the principals of aviation on their heads, his name is Elbert Leander "Burt" Rutan.

 

Burt Rutan is now retired but his legacy is certainly amongst being one of the aviation's greats. A "maverick" and yes that title is perfectly acceptable for Rutan, but his list of achievements is simply extraordinary...  early designs were mostly homebuilt aircraft and specialized research aircraft, but it was the Voyager project in designing an aircraft that could fly a nonstop, unrefueled flight around the world, and do something that had never been done before.

 

In December 1986, Voyager took off from the famous Edwards Air Force Base in California and flew around the world (westward) in nine days, fulfilling the aircraft's design goals. The oddly shaped Voyager was retired and now hangs in the Milestones of Flight exhibit in the National Air and Space Museum (NASM) main exhibit hall, alongside with the Wright Flyer, Spirit of St. Louis and Bell X-1 and all barrier breaking aircraft.Then came the GlobalFlyer which set a record for the longest flight in history at 41,467.53km (25,766.73 mi), and in doing so gaining the third absolute world record set with this aircraft. Then later again came Virgin Galactic SpaceShipOne and its carrier aircraft in the White Knight Two, and that is the spacecraft to bring space travel to everyone or anyone that can afford the 200,000 seat cost. His name is forever associated with the company he formed called "Scaled Composites" or SCALED and they are based in Mojave and only a stones throw from the huge Edwards Air Force Base complex in the high southeastern California and southern Nevada desert were Burt started his career in 1965 to 1972 , when back then Rutan was a civilian flight test project engineer for the U.S. Airforce.

 

Rutan's first personal projects were the VariViggen and VariViggen SP which first flew in April 1972. It had the large rear wing, forward canard, and pusher configuration design elements which became his trademarks. But it was the VariEze and Long-EZ that came next that became the default Rutan design, in that with the unusual aerodynamic surfaces they were also built of the then new composite design. It was a collaboration with the great English Formula One designer Colin Chapman that both men wanted the new material to create both extremely light but far stronger racing cars and aircraft, but sadly Chapman died before the ideas were brought to fruition. (John Barnard created the first carbon-fibre composite chassis that was first seen in 1981 with McLaren F1 Racing).

 

Rutan Model 61 Long - EZ

Although the VariEze was a successful design, Rutan thought the idea could done be better with the use of the more readily available Lycoming aircraft engines in lieu of the VariEze Volkswagen-derived engines and so the Long-Ez was clean-sheet scaled-up total redesign of the earlier aircraft. Changes from the VariEze included a larger main wing with modified Eppler 1230 airfoil and less sweep—the canard uses the same GU25-5(11)8 airfoil as the VariEze—larger strakes containing more fuel and baggage storage, and a slightly wider cabin. Plans were offered from 1980 to 1985. As of late 2005, there is still approximately 700 Long EZ's are FAA registered in the USA. At that time Scaled Composites was then known as Rutan Aircraft Factory, Inc.


But some owners complained of the "rain trim change" that had been experienced by all Long-EZ pilots. This trim change is usually a nose down trim change experienced when flying into rain and then requiring a small aft force on the stick to maintain altitude, which is easily trimmed out, using the bungee trim system. So a new canard was designed with the Roncz R1145MS airfoil, which produces considerably more lift than the original GU25-5(11)8 airfoil.

 

VSL LongEZ_Head 1.jpgVSL LongEZ_Head 2.jpgVSL LongEZ_Head 3.jpgVSL LongEZ_Head 4.jpg

 

Any Rutan design is always going to throw the aviation rule book out of the window, and so the Long-Ez looks nothing like your standard GA or even a homebuilt aircraft. It looks more like a sports racer from Star Wars film or any futuristic video game.

 

VSL LongEZ_Head 5.jpgVSL LongEZ_Head 6.jpg

 

Performance: Maximum speed: 185 mph (298 km/h; 161 kn) (max cruise) - Cruise speed: 144 mph (232 km/h; 125 kn) (40% power) - Range: 2,010 mi (1,747 nmi; 3,235 km) - Service ceiling: 27,000 ft (8,200 m) and the rate of Rate of climb: 1,750 ft/min (8.9 m/s)

 

There are two liveries provided with the original test aircraft N79RA and a "Thunderbirds' (aerobatic display team) Red, Blue and White scheme, there is a very nice Swiss version but that is not included here. I'm going to stick with Thunderbirds as the original test livery is a bit bland.

 

VSL LongEZ_Livery 1.jpgVSL LongEZ_Livery 2.jpg

 

My thoughts of these series of aircraft was to create an aircraft that were extremely easy to fly, more car like in operation with fewer controls and sturdy handling than the rather with the complexities of flying normal aircraft. It feels and certainly flies that way compared to a normal general aviation aircraft

 

VSL LongEZ_Canopy .jpgVSL LongEZ_Canopy 1.jpgVSL LongEZ_Canopy 2.jpgVSL LongEZ_Cockpit 2.jpg

 

There is a double-seater glass canopy, but the high lower sides means only your heads sit right above up there in the glass, it feels all very 70's Formula One one sitting in here with the high sides and with the front canard also highly visible...  The view all round though is very good and the aircraft would certainly be great as a VR (Virtual Reality) candidate and is already VR compatible and the Long-Ez sorta also handles like a flying F1 car as well, tight but with flowing in directional changes.

 

VSL LongEZ_Cockpit 1.jpg

 

Instrument panel is quite comprehensive for such a small tight aircraft. Top row are all the electrical power and lighting switches... Standard six flying instruments are not all here with just the four in... Airspeed Indicator, Artificial Horizon and the Attitude Indicator on the top row and the Vertical Speed Indicator bottom far right. An excellent EXPERIMENTAL/LSA autopilot type system is far left (we will come back to that instrument in a minute) and a Garmin OBS VOR indicator (VOR1) dial centre, below is a Bendix/King KT76 Transponder with a Mitchell Volt meter left...  note the Heading Dial down lower centre. Key start and panel lighting knobs are far, far left.

 

Native X-Plane GNS 530 also the standard pop-out, a floating compass is far right.

 

VSL LongEZ_Panel 1.jpgVSL LongEZ_Panel 2.jpg

 

Engine gauges are grouped lower left with a large manifold pressure (inHg) and fuel flow (gallons per hour) and RPM gauge. Oil temperature and Oil pressure gauges are above and below the centre Cylinder Head Temperature (CHT) gauge. On the right side wall are three gauges that cover both 26 GAL fuel tanks and an outside VDO temperature gauge ºC.

 

Left side is the connected canopy release with below a trim lever and BRKE (airbrake). Mixture, Throttle and Carb Heat levers are front.

 

VSL LongEZ_Cockpit 3.jpgVSL LongEZ_Cockpit 4.jpg

 

Right side lower is the joystick and Aileron trim rear... The aircraft design plate is nicely well done here as well.

 

VSL LongEZ_Cockpit 5.jpgVSL LongEZ_Cockpit 6.jpg

 

The big handle is to retract or extend the front landing wheel gear, but the X-Plane key setting will do all the work for you... the (arrowed) hole allows you to see if the gear is down. Behind is the fuel tank switch in Left - Right and OFF.

 

The internal cabin materials are excellent, with the weaved carbon-fiber matting and exposed fibreglass surrounding you and your single passenger...

 

VSL LongEZ_Cockpit 11.jpgVSL LongEZ_Cockpit 9.jpg

VSL LongEZ_Cockpit 7.jpgVSL LongEZ_Cockpit 8.jpg

 

...   the aircraft has "EXPERIMENTAL" pasted across the glareshield, but that is what this aircraft actually is, a basic bare-bones flying machine, there are no comfort features in here, and the well created detailing also gets that message across, and you also feel the slight age now of the aircraft as well (1980) as that aspect has been very well recreated, in the wear, tear and soiled fabrics as this X-Plane aircraft has been designed around the original Long-EZ (NR79RA) prototype. Some Long-Ez's are equipped with a rear-seat fuel tank, and a  Long-EZ has flown for 4,800 miles (7,700 kilometers) in this configuration.

 

Flying the Long-Ez

Externally the aircraft is of composite construction, and in X-Plane that aspect can come across as a little bland, but if you look closely then VskyLabs have created some nice wear, tear and visual points to give the fuselage some detail and aging, but it is still a hard aspect to cover completely.

 

VSL LongEZ_Cockpit 10.jpgVSL LongEZ_Cockpit 14.jpg

VSL LongEZ_Cockpit 12.jpgVSL LongEZ_Cockpit 13.jpg

 

The pods beneath the wings are not fuel tanks but luggage containers or really places just to stow items than say full sized luggage. The undercarriage is unusual in that the rear gear is a one piece molded s-fibreglass/epoxy (resin) set out as two struts that is extremely strong but also flexible with excellent energy absorption, and also highly efficient aerodynamically. The front gear is as noted manually retractable, but again immensely strong. Most owners usually retract the front gear when parking up the aircraft to create a sort of nose down attitude and to start the engine via handpopping, the nose down in the dirt stops the aircraft running away from you...   which when you think about that it is a good idea.

 

VSL LongEZ_Cockpit 15.jpgVSL LongEZ_Cockpit 16.jpg

 

One of the most interesting aspects of the aircraft is it's rudder arrangement...  the rudders are on the end of each wingtip. But when you yaw or use the rudder pedals then only one rudder then moves while the other rudder stays straight, and vice-versa, both rudders can also go outwards to act like an airbrake but that is not simulated here.

 

VSL LongEZ_Rudders 1.jpgVSL LongEZ_Rudders 2.jpg

 

That nosewheel can be tricky? It is freewheeling or a bit like a taildraggers loose tail wheel situated on the nose and not the tail, so if you try to turn too tight it flickers from side to side...  there is a trick to turning and taxiing smoothly and you will soon master it, but it is a strange feel to get right at first.

 

VSL LongEZ_Flying 1.jpgVSL LongEZ_Flying 2.jpg

 

Sounds of the Lycoming O-235 air-cooled flat-four engine, 115 hp (86 kW) are spot on and highly realistic, a pair of headphones can highlight the air-cooled engine. Sounds are 180º FMOD and I particularly liked the lower idle throbbing...

 

With the Long-Ez I use the XPRealistic Pro dynamic movements plugin, which I highly recommend here, make sure you have the engine throttle movements (shaking) quite high to get the engine shake for realism...  Throttle up and it is a neck back snapping experience, the Long-Ez just goes like a rocket with so little weight and the power of the 115 hp Lycoming.

 

VSL LongEZ_Flying 3.jpgVSL LongEZ_Flying 4.jpg

 

Rotate is around 70knts, and watch for any directional wind as this light aircraft can easily be buffeted off line by even just a breeze. There are no flaps at all, just rudders and aileron's, and the huge canard forward which does the lifting and the balancing act.

 

VSL LongEZ_Flying 5.jpgVSL LongEZ_Flying 6.jpg

 

If the trim is correct the Log-Ez is super easy to fly as you would expect it to be, as the turns and manoeuvrability are excellent, but don't go doing over excitable acts as this aircraft does have odd performance areas that you just don't want to go there, full performance and their limits are provided in the manual.

 

VSL LongEZ_Flying 7.jpgVSL LongEZ_Flying 8.jpg

 

The EXPERIMENTAL/LSA autopilot type system is an interesting tool. It has a built in rate-of-turn indicator by the red five boxes set either side of neutral.

 

VSL LongEZ_LSA 3.jpgVSL LongEZ_LSA 2.jpg

 

Then to hold an altitude and the heading you press the "ALT" (mode) button which acts like a hold and you get a green marker to say that action is activated...

 

VSL LongEZ_LSA 1.jpgVSL LongEZ_LSA 4.jpg

 

...  if you use the UP (Climb) or DN (Descend) buttons the green turns to yellow for the ATT mode, pressing the ALT returns you to the (ALT Mode) or straight and level. If you press the LT (Left Turn) or RT (Right Turn) buttons it stays in the ALT mode but banks to the required turn red box, clicking the opposite direction button will neutral the turn. I found that when in the normal ALT mode you need to centre the LT/RT to keep it tight on the heading or you will drift to the left or right (sort of trimming the heading), once set right the heading will stay on course. To disengage the LSA just press the ALT again to disconnect (cycle). The LSA is extremely easy to use and is very effective for long flights like In 1997, when Dick Rutan and Mike Melvill flew two Rutan Long-EZ aircraft that they had built, side-by-side around the world. This "around the world in 80 nights" flight was called The Spirit of EAA Friendship World Tour, and some of the flying legs lasted for over 14 hours.

 

Landing can be a bit tricky with no flaps, but you have a great almost fishbowl outside view that helps in the coordination and focus of the runway.

 

VSL LongEZ_Flying 10.jpgVSL LongEZ_Flying 9.jpg

VSL LongEZ_Flying 11.jpgVSL LongEZ_Flying 12.jpg

 

You have a two stage airbrake situated under the fuselage that helps in controlling the excessive speed, but the full position can easily stall you if you use it wrongly, but it is good in the case of losing height and speed. The single extension gives you the best option, but again you use it sparingly...

 

VSL LongEZ_Flying 13.jpgVSL LongEZ_Flying 14.jpg

 

The trick is to believe in the aerodynamics in that both that huge delta wing behind you and that canard in front of you will totally support you and give you the efficient lift you require, it takes a few landings to trust them, but in doing so and then the landing phase become easier, although I did find I used a lot of runway before accepting the ground as the ground effect lift is quite strong...

 

VSL LongEZ_Flying 15.jpgVSL LongEZ_Flying 18.jpg

 

You need to keep the approach above 70knts, but you landing speed target is usually around 55knts, but I found just under 60knts was fine, and overall the aircraft is quite stable unless you have a strongish crosswind, and then it is simply horrible!

 

VSL LongEZ_Flying 16.jpgVSL LongEZ_Flying 17.jpg

 

VSL LongEZ_Flying 19.jpg

 

Lighting

The Long-Ez has very simple lighting, the two knobs on the instrument panel control the main instrument lighting and the avionics lighting...

 

VSL LongEZ_Lighting 1.jpgVSL LongEZ_Lighting 2.jpg

 

...  but the instrument lighting does look nicely aged and authentic, as all the dials glow sweetly in the dark. External has the navigation lights and a two stage single light in the nose that covers the different taxi and landing light brightnesses, not totally effective, but most Long-Ez's don't have landing or taxi lights either.

 

VSL LongEZ_Lighting 3.jpgVSL LongEZ_Lighting 4.jpg

 

The strobes are very bright at night and it feels like your are flying through a bad lighting storm most of the time...

 

Summary

It is important to note that all VskyLabs aircraft are "Projects", and are not completed aircraft, in other words the work is on going and you must be aware of that in the purchase, this aircraft doesn't even have rudder pedals? which seems to be a really odd missing item, even on any launch aircraft. But they will come in an update soon, as with more canopy detailing (internal - strut), back cockpit detailing and extra liveries.

 

The aircraft is basically a simple machine, not only to use but to also fly, but that is also the same brief set out by it's designer in the first place. There are no menu's, static elements, pop out checklists (they are checklists in the supplied extensive manual) or any other fancy features to devour, this is all about the unusual flying characteristic of a very if again unusual design and a Burt Rutan design at that.

 

In that context VskyLabs have done a brilliant job in creating this classic aircraft, it is far harder to do than you can imagine as the flying performance is quite different from your usual GA aircraft, but the Long-Ez does fly and perform very much like the real aircraft. Certainly a lot of thought, sweat and tears have gone into the aircraft to do justice of it's original design and honor one of aviation's greats.

 

So here is the test...  would you fly right around the X-Plane world in the Long-Ez, and that alone is great challenge, but a worthy one. So overall this Long-Ez is a great aircraft, but still slightly unfinished in a few areas, but that is the "project' aspect of the deal. So if you like the very different, challenging experimental style of aircraft then this is your type of aircraft, it is certainly different and also very interesting at the same time.

 

______________________________________________________________________

 

X-Plane Store logo sm.jpg

 

Yes! the Rutan Model 61 Long - EZ by VSKYLABS is NOW available from the X-Plane.Org Store here :

 

VSKYLABS Rutan Long-EZ Project

 

Price is US$27.50

 

Features

  • The project is designed and engineered around the original 1980 'LONG-EZ Plans' and 'Pilot Operating Handbook' (N79RA). As a result, the VSKYLABS Rutan LongEZ Owner's manual is based on the real LongEZ owner's manual. The manual for the VSKYLABS LongEZ aircraft can be downloaded for free.
  • The core of the project is a superb flight dynamics model with authentic aircraft performance and handling characteristics.
  • Aeromatic propeller configuration (fully automatic variable pitch propeller).
  • Highly detailed and animated aircraft model along with 4K textures.
  • VR-READY - Highly detailed and functional 3D cockpit environment.
  • FMOD sounds engineered with a 'rough and tough' feel for enhanced flying experience.
  • IFR capability.
  • Autopilot - Experimental/LSA grade autopilot included.
Additional Features:
  • Highly responsive support system/forum.
  • The VSKYLABS Rutan LongEZ Project is under constant development. All updates are free.

 

 

_____________________________________________________________________________________

 

Requirements:

X-Plane 11 - (X-Plane 11.20+ is required for VR)

Windows, Mac or Linux
2Gb VRAM minimim. 4Gb+ VRAM Recommended
Download size: 220Mb

 

Installation
Download of the Lon - Ez is 216mb and it is installed in your General Aviation Folder as a 302mb folder.
 

 

Documents
Documentation is excellent with one (large) manual included:
 
VSKYLABS-Rutan-Long-EZ-POH-001 (download)
 

More Information:

 

BurtRutan.com:
Burt Rutan's web pages - contains interesting articles, 'must read' PDF documents etc...


Burt Rutan Wikipedia page:
The Aerospace Legend Burt Rutan Wikipedia page.


Rutan Long-EZ Wikipedia page:

ez.org - A community of Rutan canard aircraft enthusiasts:
Includes Forum, articles, links, various downloads (drawings, POH plans etc...). 


Canards for X-Plane:
An interesting resource of freeware, good quality models for X-Plane:

 

_____________________________________________________________________________________

 

Review by Stephen Dutton
9th May 2018
Copyright©2018: X-PlaneReviews
 
(Disclaimer. All images and text in this review are the work and property of X-PlaneReviews, no sharing or copy of the content is allowed without consent from the author as per copyright conditions)
 

Review System Specifications:

Computer System: Windows  - Intel Core i7 6700K CPU 4.00GHz / 64bit - 16 Gb single 1067 Mhz DDR4 2133 - GeForce GTX 980/SSE2 - Samsung Evo 512gb SSD 

Software:   - Windows 10 - X-Plane 11.20

Addons: Saitek x56 Rhino Pro system Joystick and Throttle : Sound - Bose  Soundlink Mini

Plugins: Environment Engine by xEnviro v1.07 US$69.90 : XPRealistic Pro v1.0.9  effects US$19.95

Scenery or Aircraft

- KMHV - Mojave Air & Spaceport - Scenery Packages (v11,v 10, v9) (X-Plane.Org) - Free

 

Logo Header X-PlaneReviews 200px.jpg

 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

  • Recently Browsing   0 members

    No registered users viewing this page.

×