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  • ABOUT THE S-20
  • SPECS
  • 3-VIEW
  • PAINT SCHEMES
  • KIT PHOTOS
  • VIDEOS
  • PRICING
  • FAQ
  • SHIPPING

 

OVERVIEW


 

The S-20 is the best of two great planes that have been in production at RANS since the 80's. We took the wings, tail, fuel system, and aero servo ailerons from the S-7S Courier, and engine system, control sticks, flap lever, rudder pedals, seats, and instrument panel from the Coyote II S-6S. The intent was to answer the many requests for a side by side bush plane, equal to or beyond the Courier.


Construction is straight forward and classic. The proven wing features our special 3" and 2" custom extruded spars, airfoil struts, and stamped aluminum ribs. All welded 4130 steel fuselage and tail complete the fuselage.


Design features that will make the plane an easy project include: Welded steel fuselage and tail (all welding is completed at the factory) CNC drilled spars that eliminate almost all critical drilling and locating of holes. One-piece stamped ribs are punched with final hole sizes, and many parts are anodized eliminating the need to prime or corrosion proof. The kits are very detailed and supplied with all critical components. Builders only need to supply, engine, prop, paint, avionics, and fluids.

 


OUTSTANDING FEATURES INCLUDE:



Reversible Landing Gear: you can switch from a trike to a tailwheel plane in a matter of hours. Landing gear is made from 7075 aluminum alloy, the best for landing gear due to great fatigue resistance, and high strength.

 

(Please Note: Main landing gear for the trike configuration are shorter than the Tailwheel version. The shorter main gear when used in the tailwheel configuration require a larger diameter of tire to obtain adequate prop clearance. At least a 24" or larger wheel diameter, or purchase of the taller main gear is recommended.)

 

Easy Entry: Wider doors and sliding seats allow you extra room to enter or exit.


Large Baggage Area: Camping gear and folding bikes are bulky, so we made the Ravens cargo hold not only large, but easy to get too. The seats slide and fold forward, for easy use of the baggage area. A metal liner prevents any cargo from poking through the covering.


Rugged Welded Steel Fuselage: A time proven method to build a bush plane, and an easy one to build, and if the worst happens, repair. Tubular steel fuselages have been the highly regarded standard among the back country pilots for decades. Careful attention to weight and structural design has made the Raven fuselage not only strong, but light.


Welded Steel Doors: Feature gas lift struts and double latch system.


CNC Machined Aluminum Boot Cowling: This allows for cleaner, faster assembly.


Low Drag Engine Cooling: An under slung radiator, and sleek cowling combine to reduce cooling drag, and to provide exceptional cooling. This proven engine system is also featured on the Coyote II.


Tapered Fuselage Cross Section: The subtle shaping of the fuselage has reduced the total plate drag area, but not sacrificed the interior space. It also adds a nice sculptured, classic look to the plane.


Many More Features Include: Joggle fit between cowling and boot cowl for drag reduction and sleek looks, two choices of tail styles: classic curved or RANS signature, most all components that attach to the fuselage have pre-located tabs to speed assembly and assure accuracy, safe operation and durability. Grooved gear legs to accept brake lines, Baggage compartment bottom panel removes for inspection, Door assembly highly prefabricated for fast and accurate assembly, Lexan glazing features special anti-crack migration design for door and aft windows.


The S-20 RAVEN on sale now from RANS Designs.

 

 

ORDER YOUR KIT TODAY!

 

 

STANDARD EQUIPMENT


 

 

AIRFRAME

 

  • 4130 Chromoly Steel welded fuselage and tail frames
  • Choice of curved Classic or RANS Signature Tail
  • Tubular aluminum wing structure
  •  Stamped aluminum ribs
  • Sheet aluminum leading edge
  • Pitot static system
  • Lexan Windshield
  • Cabin skylight
  • Aero-Servo Differential ailerons
  • Ball bearing aircraft control pulleys
  • Cable operated rudder and ailerons
  • Push-pull tube operated elevator
  • Double stainless steel tail braces
  • Pre-drilled streamline aluminum struts
  • Adjustable aft lift strut
  • 4130 streamline jury struts
  • Exit fairings for control rods and cables
  • Molded wing tips
  • 26 Gallon fuel system (13 gal. in each wing with sight gauges), Flush Fuel Caps
  • 50” wide curved doors with gas lift cylinders
  • Deluxe upholstered seats with map pockets, 5" in-flight adjust fore and aft with recline
  • Interior Finishing Panels
  • Lap and shoulder belts (3-point)
  • Dual control sticks and dual rudder pedals
  • Dual side hydraulic toe brakes
  • Park Brake & Stainless Steel Braided Brake Lines
  • Single panel mount throttle
  • Eyeball Vents (mount in panel)
  • Electric elevator trim mounted to pilot control stick with indicator on panel
  • Center mounted 4-position flap handle
  • 2 piece spring aluminum main gear
  • Hydraulic 6" wheels and brakes
  • Telescoping steerable nose gear (Trike)
  • Full swivel steerable tail wheel (Tailwheel)
  • Sheet Aluminum Baggage Compartment open to cabin
  • CNC machined Aluminum sheet boot cowl w/ joggle for flush cowling fit up
  • AN hardware and fasteners
  • Pre-cut floor board w/aluminum wear plate
  • Aircraft fabric, tapes, close outs, placards and decals
 

ROTAX 912 ULS ENGINE INSTALL KIT

 

  • Low drag 2-piece fiberglass cowling, oil check door, cowling removes quickly with ¼ turn fasteners
  • 12” Spinner
  • 4-Point rubber isolated engine mount
  • Stainless steel exhaust system
  • Cooling system
  • Oil Cooler
  • Pre-assembled oil lines with fire sleeves
  • Fuel lines and  fittings
  • ACS ignition switch
  • Hardware
  • Pre-fabricated battery, starter and ground cables

 

(Does not include engine, propeller, or propeller installation hardware.)

 

ENGINE

 

Rotax 912 ULS (100 hp) available factory new.
Due to currency fluctuation, prices are updated frequently. Please call for current pricing.

 

 

The S-20 Raven is a Kit in Standard or Quick Build Form – No welding required.

 

 

  • BUILD TIME: 500-700 HOURS
  • QUICK BUILD TIME 250-350 HOURS
  • MANUALS PROVIDED ON CD
  • PAPER COPY (available at extra cost)

 

 

 

 

 

 

 

 

 

 

 

KIT AND OPTION INFORMATION


 

Airframe Kit Less Firewall Forward

    
Airframe Kit including all Standard Features.
Available as trike or taildragger

 

PROP OPTIONS 

 

  • 3-Blade Whirl Wind ground adjustable composite
  • 3-Blade Warp Drive ground adjustable w/HP-L hub

 

QUICK BUILD OPTIONS

 

      The S-20 Raven Quick Build Option Includes:

  • Fuselage welded, internal corrosion protection added, powder coated, and covered
  • Wings assembled, covered, wires for AVEO LED Strobes installed, fuel system installed, with fuel lines plumbed and ready to integrate into fuselage.
  • COM and ELT antenna mounts installed
  • Flaps and Ailerons, assembled and covered
  • Tail frames powder coated, assembled and covered
  • Door frames, powder coated, and covered

 
Quick Build available with 2 or 3 color paint options

 

BRAKE & TIRE OPTION

 

The S-20 Raven comes standard with 6" hydraulic wheels and brakes.

 

TAILDRAGGER - 8.00 x 6 Bush mains & Bush tailwheel

  • BUSH PLUS option

 

TRIKE - 6.00 x 6 mains & 15 x 6.00 x 6 nosewheel

 

FUSELAGE OPTIONS

  • Powder coated fuselage, tail frames, & door frames (Included in quick build option)   
  • Internal corrosion protection

(Included in quick build option)

 

INTERIOR OPTIONS

 

  • Heater muffler style for 912 ULS
  • Heater (Radiant style, only with water cooled engines)

 

UPHOLSTERY OPTIONS

 

  • Standard upholstery includes seat covers in gray velvet fabric.
  • Non-standard Upholstery Color
  • Headrests
 

OTHER OPTIONS

 

  • Paper Copy Manual
  • Gascolator
  • Electric Fuel Pump
  • Electric Carb Heat Probes
  • Radio Mount Side Plates
  • Passenger Seat Electric Elevator Trim
  • Canopy Cover
  • Carbon Fiber Cowling     
  • Carbon Fiber Wing Tips
  • AVEO LED Strobes

 

MANUALS & SUPPLIES

 

  • (Manuals, log books, raw stock, etc.)

 

WING KIT

 

  • (Main structure, fuel tanks, close outs, ribs, jigs, lift struts,
    jury struts, ailerons, & flaps, wing tips, etc.

 

FUSELAGE & TAIL KIT

 

  • (Fuselage, formers, main gear, wheels and brakes,
    rudder pedals, tail section, tail wheel, control stick
    assembly, baggage compartment, boot cowl, ELT
    mount plate, floor boards, wear plates, hardware, etc.)

 

COVERING KIT

 

  • (Covering supplies, fabric, closeouts, wing tips etc)

 

FINISHING KIT

 

  • (Seats, seatbelts, control covers, placards, windshield,
    cabin fuel system, etc.)
             

ENGINE INSTALL KIT

 

  • Rotax 912 ULS install kit (less engine)
    See info above.

                 

 

Crating / packing costs are included in pricing. Countries requiring treated wood subject to additional crating fees.

 

All orders are shipped freight collect unless prior arrangements have been made to pre-pay shipping.  Customer pick-ups welcome. See “Shipping Information” page.

 

 

 

SPECIFICATIONS


 

 

Wing Span
30 ft 3 in
Area
152.7 sq ft
Mean Chord
5.05 ft
Aspect
6.0:1
Length
21 ft 0 in
Height - TAILDRAGGER *
6 ft   7 in
Height - TRIKE *
7 ft 11 in
Cockpit Width
46 in
Headroom 
40 in
Legroom
46 in
Number of Seats
2
Doors
2
Landing Gear **
F/TDTK
Baggage Volume
21.2 cubic ft
Baggage Capacity
80 lbs

Fuel Capacity

 

26 gal US

 

POWER PLANT

912 ULS

Engine
Rotax 912 ULS
Output
100 hp
Oil Capacity
3.0 qts
Coolant Capacity
4.4 qts
Propeller Diameter
70 in
Propeller Type
 ground adjustable
Gear Reduction
1:2.43

Fuel G.P.H @ 75%.

 

5.0

 

PERFORMANCE ***

Take Off Roll
300 ft
Rate of Climb
900 fpm
Service Ceiling
14,500 ft
Cruise
112 mph
VNE
130 mph
Stall Clean
39 mph
Stall Flaps
33 mph
Roll Rate
80o / sec
Glide Ratio
9.4:1
Landing Roll
340 ft
Endurance
5.2 hrs

Range

 

582 miles

 

WEIGHTS AND LOADINGS

Gross Weight
1320 lbs
Empty Weight ***
740 lbs
Useful Load ***
580 lbs
Wing Loading
8.64 lbs
Power Loading
13.20

Limit Load Factors

 

 

+4 -2

 

 

* With Standard Tires
** F/TDTK = Fixed, Convertible - Taildragger or Trike
*** Estimated

 

 

PAINT SCHEMES


 

Coming Soon!

 

KIT PHOTOS


 

Coming Soon!
 

 

 

VIDEOS


 

 

 

PRICING & ORDER FORM


 

 

FREQUENTLY ASKED QUESTIONS

 

  1. Why don’t you have one piece landing gear?
  2. What aluminum alloy is used in the landing gear and why?
  3. Is there an option to carry golf clubs ski’s and fishing poles?
  4. What tire sizes are available?
  5. What about floats?
  6. What other covering systems have you considered?
  7. Is there any long range fuel options?
  8. What other engine options are available?
  9. Do the wings fold or swing?
  10. How long does it take to convert from trike to tailwheel and what is required?
  11. Why are two sizes of gear between Trike and Taildragger?
  12. What aerobatic maneuvers are approved?
  13. What about spins?
  14. What props do you recommend for the 912ULS?
  15. Will there be a 914 Option?
  16. Is an auto-pilot a good idea?
  17. Can you fly with doors open or off?
  18. How many inches fore and aft to the seats adjust?
  19. What is the shortest and tallest person to fit?
  20. Is it a full swivel tailwheel and steerable?
  21. Is it direct or brake steer nose gear?
  22. What about a wheel pant option for the trike?
  23. What performance do you expect from the 180 HP UL engine?
  24. Can you build it with all glass doors?
  25. How well does the cabin heater work?
  26. How much crosswind can the Raven handle?
  27. Will a molded windshield be available?
  28. Can I buy it in partial kits?

 

 

  1. Q. Why don’t you have one piece landing gear?
    A. There are advantages to both methods, but the two piece gear won out in the end. This is because it saves weight, allows adjustment of camber and alignment, and less drag, and  less costly to replace.  Durability and strength is equal to or greater, two piece gear are seen on most all certified planes, this is a sign of optimized engineering and going the extra distance to increase payload and reduce drag.

  2. Q. What aluminum alloy is used in the landing gear and why?
    A. We use 7075-T6The alloy 7075-T6 is one the strongest alloys readily available, and the most resistant to fatigue. Therefore in the roll of a main landing gear where large deflections are common, it makes sense.

  3. Q. Is there an option to carry golf clubs ski’s and fishing poles?
    A. Not at this time, however we have discussed the possibility of a cloth tube held tight with a cable and turnbuckle. This should be light enough not to greatly impact CG.

  4. Q. What tire sizes are available?
    A. The stock tire for the tailwheel Raven is 6x800. These weigh 17.7 pounds each and are about 20” in diameter.  Alaskan Bushwheels up to 26” are an option (25.9 pounds each) adding 16.2 pounds. The Matco 10” wheels are also 26” in diameter and add 16  pounds. The 10” Matco option requires different rims. This can be ordered as original equipment or a separate option.

  5. Q. What about floats?
    A. Yes! The Raven should be an excellent float plane, and we have included in all Ravens bushings to mount floats. These are welded into the fuselage at station 3.

  6. Q. What other covering systems have you considered?
    A. The Oracover 6000 is a viable system. We have experimented with pre-sewn envelopes, but at this time do not have an offering in the pre-sewn form. The Raven can be ordered minus the stock covering to allow the builder to explore other options.

  7. Q. Is there any long range fuel options?
    A. No, the current 26 gallon system is the max fuel capacity available.

  8. Q. What other engine options are available?
    A. We will have install kits for:  Rotax 914, and possibly the following: UL power 180 HP, Lycoming 0-233, and Lycoming 320. Builders are free to order less the firewall forward kit and develop their own power plant.

  9. Q. Do the wings fold or swing?
    A. We are developing a swing wing option. All fuselages have fittings in place to accept the option.

  10. Q. How long does it take to convert from trike to tailwheel?
    A. We estimate 4 hours.

  11. Q. Why are two sizes of gear between Trike and Taildragger?
    A. The main gear for the Tailwheel version is taller to create prop clearance. If ordered as a trike , you can use the main gear for the in tailwheel configuration, but with reduced prop clearance. Large tires would increase prop clearance in this case. The taller tailwheel main gear legs used in trike configuration would require a taller nose gear. No taller nose gear is available.

  12. Q. What aerobatic maneuvers are approved?
    A. Aerobatics with the Raven should only be considered if wearing a parachute, and if the plane is equipped with a G-meter, and the pilot is experienced in aerobatics. During our testing we perform a number of maneuvers, these include: Spins, loops, rolls, Cuban 8’s, chandelles, hammerheads, and whip stalls.
     
  13. Q. What about spins?
    A. Spin testing of the Raven shows prompt recovery with conventional input.

  14. Q. What props do you recommend for the 912ULS?
    A. We use 3 blade props and like either of these two choices.  For the least cost and most durability the Warp Drive is hard to beat. For just a slight increase in performance, weight reduction the Whirlwind 72” Razor is a great choice.
     
  15. Q. Will there be a 914 Option?
    A. Yes, we will have an install kit for this option.

  16. Q. Is an auto-pilot a good idea?
    A.
    Yes and no, the Raven tracks a course with rudder input only, and holds trim speed very well. Because of the inherit stability the Raven will be an easy plane for an auto pilot to fly.

  17. Q. Can you fly with doors open or off?
    A.
    There is no need to remove the doors, instead just fly with them open. It is recommend to open doors at or below 65 MPH and not to exceed 100 MPH.

  18. Q. How many inches fore and aft to the seats adjust?
    A.
    5 inches

  19. Q. What is the shortest and tallest person to fit?
    A.
    Pilots from 5’ to 6’ 6” have fit. The seats travel fore and aft 5” and change in height, dropping 3” as they go aft.  Because the seats get lower the more aft the travel more headroom is created. 6’ 6” pilots may fit, depending on torso and leg lengths, it is always best to test fit prior to making a purchase. There are also adjustments to rudder pedal position and variable geometry to the seat side plates that allow custom fits.

  20. Q. Is it a full swivel tailwheel and steerable?
    A.
    Yes, the tail wheel features a cam that kicks out the steering when displaced far enough to the left or right.

  21. Q. Is it direct or brake steer nose gear?
    A.
    Direct steering to the nose wheel offers very responsive control.

  22. Q. What about a wheel pant option for the trike?
    A. We currently do not have an option for wheel pants. If builders would add wheel pants please note without a nose gear disconnect more adverse yaw may occur.

  23. Q. What performance do you expect from the 180 HP UL engine?
    A.
    We are predicting a 100% increase in ROC and 8 kts in cruise. A loss of  85 pounds in payload may occur, however we may increase the baggage max weight.

  24. Q. Can you build it with all glass doors?
    A.
    Yes, and we have some tech solutions that will make this a nice install.

  25. Q. How well does the cabin heater work?
    A.
    Down to 20 degrees the cabin heat keeps up.

  26. Q. How much crosswind can the Raven handle?
    A.
    In the right hands the Raven will handle 20 knots at 90 degrees, typically 15 knots at 90 degrees.

  27. Q. Will a molded windshield be available?
    A.
    Yes, and this will be a retro kit for existing Ravens.

  28. Q. Can I buy it in partial kits?
    A.
    Yes, please consult our online order sheet for the latest in options and  prices.

 

 

SHIPPING INFORMATION

 

  1. All orders are shipped freight collect unless prior arrangements have been made to prepay the shipping. We welcome customer pickups. However there are charges if the loading requires service above what we would normally give loading a common carrier. You will be charged accordingly for staking and anchoring and any spectial lifting. Labor rates on special loads are $80/hour. 1-hour minimum.

  2. All kits are secured in wooden crates. This is included in the base price of each kit including the quick build options. *See #4 Foreign Special Shipements for special fee

  3. Domestic Shipments: Unless prior arrangements have been made, we will choose the carrier for your shipment. RANS is a high-volume shipper privileged with generous freight discounts. We can save you some freight costs by choosing the right carrier.

  4. Foreign Shipments: We are very flexible on arrangements for foreign shipments. We can make the arrangements, obain quotes, and try to find for you the best service for the price. We deal with numerous freight forwarders every month and can route a shipment however you prefer. *There is a $500 crating fee for foreign countries that require special handling due to treated wood. Additional crating fees apply to off shore shipements. $500 for each large crate and $200 for small crates.

  5. Freight on domestic shipments is charged by weight. Foreign shipments by ocean or air are charged by size and/or weight (dimensional weight). For you use in obtaining quotes or planning for pickup or delivery of your kit, here are the sizes and domensions of the shipping packages. All engines are packed seperately and sizes for those are also listed below.

 

  • S-20 Fuselage Kit
    (1) Wooden Crate - 205" X 49" X 55" @ 1020 lbs.

 

  • S-20 Wing Kit
    (1) Wooden Crate - 146" X 25" X 21" @ 300 lbs.

 

    Special Notes on Crate Sizes

  1. All engines are shipped seperately. Box sizes area as follows:
    for 447, 503, or 582; 27" X 14" X 20" @ 100lbs.
    for 012 or 912S: 36" X 31" X 25" @ 230 lbs.

  2. The height is the maximum height over the tail. On some models the entire crate is not this high. However, for all foreign shipments, this height must be used to figure dimensional weight.

RANS Designs, Inc. reserves the right to make changes in prices, specifications, or models, or add improvements at any time without notice or obligation.