Monday, August 9, 2010

New Nitro Models Lancair 120 - 71" Nitro Gas RC Plane ARF







With a top speed of up to 345 mph, the Lancair IV is the fastest civil aviation, single engine, piston driven aircraft in the world. Turboprop Lancair IV aircraft can reach speeds of 370 mph.

The Lancair IV model P is the only aircraft of its type with a pressurized cabin.


The aircraft have been available as kits from Lancair International since 1990.

Unique to the Lancair IV are Fowler flaps plus high aspect ailerons that add to slow speed handling, and winglets for increased high altitude stability.


Side stick controls add to the feeling and response of flying a fighter-like aircraft, while three axis electric trim eases flight control for the pilot.

To date over 1,870 Lancair aircraft of all types have been purchased for distribution around the world.



Specifications

Primary Function:
Crew:
Engine:
Power:
Weight Empty:
Max. Weight:
Fuel (typical):
Payload:

Seats:
Length:
Wingspan:
Cruise Speed:
Max. Speed:
Initial Climb:
Ceiling:
Range:
First Flight:

recreation
one
Continental TS10-550
350 h.p.
2,000 lbs.
3,200 lbs.
90 U.S. gallons
1,200 lbs.
four
25' 0"
35' 6"
247 mph
345 mph
2,500 fpm
29,000 feet
1,550 miles
1991

n the picture above is the Nitro Planes ARF rc Lancair. It has a wing span of 71" with a length of 58 1/2". Construction is a fiberglass fuse and balsa built up wings. A 1.20 two stroke engine or a 1.40 four stroke engine can be used for power. It has a wet weight of 9 1/2 lbs.

The first and second pictures below are for the Nitro Planes rc Lancair. It is available in two color schemes, blue and white or red and white. It has a wing span of 59" with a length of 46". Power for the RC Airplane can come from a .40 to .46 two stroke engine or a .50 to .63 four stroke engine. It will weigh around 6 lbs. upon completion.

Kit Cutters has a rc RC Lancair IV designed by Wendell Hostetler. It has a wing span of 100" and a length of 82". Recommended power for the rc airplane is a 3.0 c.i.d. or up engine. It should have an all up weight between 22 and 26 lbs.

Kit Cutters also offers a Lancair model ES RC Airplane. The giant scale radio control airplane has a wing span of 118" with a fuselage that is 83" long. To power it you will need from a 3.0 to 6.0 c.i.d. engine. All up weight should come out to around 25 lbs.

In the next picture below is the Nitro Models Lancair 61 1/2" wing span rc airplane. It has a fuselage that is 50 1/2" long. A two stroke .46 to .52 engine is recommended. Upon completion it will weigh from 5 to 6 lbs.

Great Planes has a ARF Lancair ES rc airplane with a 80" wing span. It has a 52" long fuselage. Recommended engines are .61 to .75 two cycle or a .91 four cycle engine. It should weigh between 8 1/2 and 9 lbs.

The third picture below is the rc Lancair ARF park flyer for sale from ElectriFly. See the ad for its description.

Great Planes has a rc Lancair ARF for sale. It is giant scale with a wingspan of 80" and a length of 52". Construction is from fiberglass and wood. Engines can be from .61 to .75 two cycle or .91 four cycle. Weight is around 9 lbs.

CMP has a rc Lancair ARF with a wingspan of 79" and a length of 66". Its fuse is fiberglass with balsa built up wings. Recommended are from 1.20 to 1.50 four stroke engines.

We received the following email from John Bailey:“You asked for recommendations of a rc Lancair. Well, I highly recommend the rc Lancair from CMP. I equipped mine with a new Evo 35GT engine. I was happy to find the engine started easily once I swapped the ignition module from a four cell battery pack to a six cell one. The engine kicked over with just a couple of turns of the prop. I had to lean out the top end a little and after that the engine ran like a clock. The engine even sounded great, with a very low idle speed. Advancing the throttle quickly brought on the power smoothly. I imagine that the engine will only get better with use.

Take off of the rc Lancair was simple with all the power available. I barely made any rudder corrections to keep the large rc Lancair right in the center of the runway. It lifted off with barely any control input and grabbed lots of sky while climbing. I throttled a little bit back, and slightly adjusted the aileron and elevator trim for straight and level flight.

The rc Lancair will fly smoothly and exactly where you point it, even in moderate winds. It has a wide speed envelope. The model is well under control from walking to full speed. At high speed it was very predictable. I tried some rolling climbs and they looked fantastic! Loops can be any size you choose, and rolls are very axial. However, the roll rate is very scale like and not too fast. The rc Lancair does not have any tendency to wobble. Coordinating rudder with ailerons in the turns will keep the model flying as if on tracks. However, if you don't want to use rudder, it will still fly just fine. Stalls are very gentle. The model just drops the nose a little and will quickly recover. Lowering the flaps doesn't change flight pitch. There is no need for elevator compensation.

Landing the rc Lancair is easy. Lowering the flaps about 50 percent of travel while going on the downwind approach and then lowering them fully on final over the runway makes for terrific landings. Although there is no pitch change with the flaps lowered, they do an excellent job in slowing the aircraft and increasing lift. On roll out there isn't any problem with nosing over, even in short grass. The rudder is extremely effective until the rc Lancair is slowed almost to a crawl.

My conclusion is that the CMP rc Lancair ARF is one heck of an airplane!”








Sunday, August 31, 2008

Great Planes RV-4



Great Planes RV-4
Model Airplane News, Jan 2003 by Onorato, Jim

Sport-scale aerobatic Sunday flyer

The RV-4 ranks among the most popular homebuilt aircraft in history. Between 900 and 1,000 of them have been built and flown in countries all over the world. Although it isn't specifically intended to be a vehicle for showy aerobatics, the RV-4 has proven quite capable of such maneuvers. Much like its full-size counterpart, the Great Planes RV-4 model seems to exhibit the same split personality; although it's a natural for smooth Sunday sport flying, this model can also be an aerobatic powerhouse.

THE KIT

The RV-4 kit features balsa and lite-ply construction with basswood wing spars and an ABS
plastic cowl, wingtips and wheel pants. Other items include a generous hardware package; hinges; an adjustable engine mount; preformed, aircraft-grade aluminum landing gear; self-adhesive decals and a vacuum-formed windshield. A rolled, two-- sheet, computer-drawn plan and an excellent 52-page instruction manual complete the package. This is a typical Great Planes kit, with the high-quality materials and excellent parts fit that modelers have learned to expect from this company.

CONSTRUCTION

I used Great Planes' thin and medium Pro CAs and accelerator for most of the construction,
but I used six-minute and 30-minute Pro Poxy on the firewall, wing-- spar joiners, wing-bolt blocks and landing-- gear blocks.



* Tailpieces.

The fin, rudder, stab and elevator were all built directly over the plan using 1/4-inch stripwood and laminated 1/8-inch die-cut balsa parts. I added an extra piece of balsa at the bottom of the fin to provide a place for the covering to adhere. The model came with CA-type hinges, but I didn't install them until after I had covered the model.

* Wing.

The wing has a constant chord and a fully symmetrical Selig 8036 airfoil. It uses a one-piece, notched shear web onto which I positioned die-cut balsa ribs, followed by two 1/8x1/4-inch basswood spars and an inch die-cut balsa trailing edge.
I assembled the whole
thing over the plan and then glued the pieces together with thin CA. One discrepancy I noticed in the plan and instructions concerned the placement of root rib W1. To correspond to the wing's dihedral angle, this rib has to be set at a slant-it instead of vertically, as shown. A dihedral gauge would have been helpful here. I didn't remove the wing from the building board until after I had glued on the 3/32-inch leading-edge sheeting, the trailing-edge sheeting and the capstrips. I then turned the wing over and sheeted the bottom.
The instructions covering the construction of the trailing edge where the wing bolts are to
he installed were a bit complicated. Study each step carefully before you begin this part of the construction. I found it easier to shape the balsa blocks before they were glued into place.
The RV-4 has molded ABS plastic wingtips. These were trimmed and glued into place, and I sanded the wing to match their contours.
You can leave the tips off until after the wing has
been covered; then paint and attach them. Next, I built the ailerons and functional flaps using the plan as a guide.
I then trial--
fit them to the wing with the provided hinges. I joined the wing halves with an 1/8-inch lite-ply dihedral brace and an 1/8-inch dihedral brace doubler then slid this assembly into the openings in the ribs and twisted it into place against the spars. I used 30-minute Pro Poxy for this joint. I assembled four servo trays for the aileron and flap servos and glued them into the wing at the locations shown on the plan. The addition of the center sheeting completed the wing's construction.

* Fuselage.

The fuselage is primarily constructed of die-cut, lite-ply parts. The die-cutting is excellent, and the parts fit perfectly. Great Planes uses computer-designed, interlocking parts to ensure a strong and straight fuselage. Pushrod routing holes on all of the formers take the guesswork out of the installation. After the side, top and bottom subassemblies were built, I assembled the fuselage upside-down over the plan.
Make sure that you build both a left and a right fuselage side,
and that the firewall notches are correctly cut so that the firewall has built-in right thrust. Also, when you assemble components that reference the right or left side of the fuselage, take the time to be sure you are working with the correct side. I sheeted the turtle deck and the top of the fuselage forward of the canopy with 3/32-- inch balsa. Patterns are provided with the kit, but a lot of trimming is required. I sprayed the out-facing sides of the balsa sheets with water and ammonia so that they wouldn't split when bent around the formers.

* Engine and radio installation.

Great Planes recommends an engine in the .40 to .52 2-stroke or .52 to .70 4-stroke range. If you select one from the upper end of this range, keep in mind that the RV-4 is a scale model intended to fly at scale speeds; prudent throttle management should be practiced. I chose an O.S. .46 FX 2-stroke engine for my RV-4 and side-mounted it using the Great Planes adjustable engine mount provided. I used a Bisson Pitts-style muffler that fit entirely inside the cowl. The RV-4's roomy fuselage made it easy to install the radio equipment. I installed the rudder, elevator and throttle servos behind the fuel tank, and I secured the receiver battery behind the servos, close to the trailing edge. I wrapped the receiver in foam and installed it alongside the fuel tank. I used standard Futaba servos throughout and connected them to the control surfaces with the hardware provided. The elevator halves required two pushrods that were connected at the servo.

* Final steps.

The RV-4's ABS plastic cowl is molded as two pieces-a top and a bottom. The molded-in cut lines on my cowl weren't very well defined, and I had to be very careful when I trimmed the halves. I had the same problem with the wheel pants. Related Results I covered the entire plane with Top Flite white MonoKote, used silver, black and royal blue MonoKote trim sheets for the stripes and used the included self-stick decals for the graphics. I painted the cowl and wheel pants with white Top Flite LustreKote. I added a 1/8-scale DGA pilot figure and attached the clear canopy with R-56 canopy glue. I used an 11x7 Top Flite wooden prop and a 2 1/4-inch Great Planes plastic spinner.

CONCLUSION

The Great Planes RV-4 is a high-quality, easy-to-build kit that looks great on the ground and in the air. If you're experienced at flying low-wing sport planes, give this one a try. It's highly aerobatic yet stable at low speed. You'll be proud to take this one to the flying field. DGA Designs (716) 393-1838; dgadesigns.com. Futaba, distributed by Great Planes Model Distributors; futaba-rc.com. Great Planes Model Distributors Co. (800) 682-- 8948; greatplanes.com. O.S.; distributed by Great Planes Model Distributors; osengines.com. Top Flite; distributed by Great Planes Model Distributors; top-flite.com. Copyright Air Age Publishing Jan 2003 Provided by ProQuest Information and Learning Company. All rights Reserved