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VMAR CHALLENGER 40ARF TRAINER

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STEP 8.1 - BALANCE THE AIRCRAFT.

The Centre of Gravity is often referred to as the "CG"
and is the point at which an aircraft is balanced with as
much weight aft of the point as it has weight forward of
the point. For your Challenger the CG should be located
at 89 to 108mm (3-1/2 to 4-1/4 in.) back from the leading
edge of the wing when the wing has been attached  to the
fuselage.

Ideally we recommend that the CG be located at
95mm (3-3/4 in) back from the leading edge of the
wing

The CG is measured with the engine, tank, radio gear
and all other components installed but WITH NO FUEL IN
THE TANK.

Set up the CG with the Challenger as it will be when you
fly it BUT WITH NO  FUEL IN THE TANK.

It is VERY IMPORTANT to have the CG correct. Flying
your Challenger  with the CG too far aft will likely lead to
loss of control and a crash.

If you discover that after you have assembled your
Challenger and installed your radio and engine that the
CG is incorrect you must bring the CG to the correct
location by doing the following BEFORE FLYING:

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Move the battery pack fore or aft, and/or

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Move other components fore or aft, and/or

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Change engines to a lighter or heavier model and/or

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Add weight to the nose or tail. If adding it to the

nose, try to make it useful by going to a heavier duty
engine or adding a spinner with a heavy metal
backing plate. As a last resort, add stick on "dead"
weight where appropriate.

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PHASE 8 - CHECK OUT

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Moving the battery pack fore or aft is the first step you
should take to get the CG located correctly.

If your engine is a plain bushing or lighter weight sport
type engine, you may find that the Challenger is nose
heavy with the CG too far forward. To correct this, gently
remove the fuel tank and extract the battery pack from
where it was located earlier under the fuel tank. Reposition
the battery pack further aft into the radio compartment.
Pad the battery pack securely into place with chunks of
foam. Relocate the tank back into position and check the
CG again. Do this repeatedly with small movements of the
battery pack until you get the CG right. If you still cannot
get the CG correct by moving the battery pack, you will
need to consider some of the other alternatives outlined
above.

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STEP 8.2 - SEALING THE FUEL TANK

INTO POSITION.

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8.2.1 

Gently remove the tank from the Challenger.

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8.2.2 

Note carefully which silicone fuel tube is applied

to which external metal pipe.

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8.2.3 

Remove the silicone fuel tubes.

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8.2.4 

Re-install a 50 mm (2 in.) piece of protective fuel

tubing from one pipe to another. This will serve to protect
the pipes from becoming contaminated with dust or
sealant.

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8.2.5 

Remove the black rubber ring from the tank.

Apply a bead of silicone based sealant to the front face of
the tank in a circle around the stopper and put the black
rubber ring back on the tank.

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8.2.6 

Apply a second bead of sealant to the front face

of the black rubber ring. Seal all the way around the neck
and onto the face of the rubber ring but don't over do it.

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8.2.7 

Slip the tank carefully back into the fuselage and

fuel tank compartment keeping the metal tubes pointing
upwards and gently push the tubing and neck through the
firewall and snake the tubing out between the engine
mounts.

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8.2.8  

Push the tank firmly forward to squish the

sealant against the backside of the firewall and out into
the hole in the firewall.

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8.2.9 

Remove the protective piece of silicone tubing

that you installed between the metal pipes.

After balancing your Challenger and possibly moving the
battery pack in order to get the CG right, you should seal
the fuel tank into position with silicone based sealant.

Содержание Challenger 40ARF Trainer

Страница 1: ...horoughly Review This Manual and all other documentation and instructions Before Assembling or Operating the VMAR Challenger 40ARF Trainer Visit us on the Web at www richmondrc com vmar CHALLENGER 40...

Страница 2: ...g is committed to delivering superior value to the RC modeller Your new VMAR Challenger 40ARF Trainer is a market leader in features value ease of use and flexibility Please review these instructions...

Страница 3: ...ncing Page 30 Sealing the Fuel Tank into Position Page 30 31 Functional Integrity Page 31 Caution Page 31 Replacement Parts Page 31 More Information Page 31 Copyright Notice Page 31 Manual Change Log...

Страница 4: ...R 1 Control Horn Parts Bag R R R R R 1 Right wing WR R R R R R 1 Left wing WL Please read the Read Me First sheet before proceeding any further Ensure that you have the following major components Do...

Страница 5: ...R 1 Pre bent metal nose gear wire NG R 1 Ultralight treaded wheel 62 mm 2 7 16 in diameter W R R R R R 2 Metal bolts CHB 2 5 mm x 25 30 mm 1 to 1 3 16 in R R R R R 2 Plastic control horns CHH R R R R...

Страница 6: ...hed listing of tools materials available in your market area These items are not included and are not required but make the operation of your Challenger and most other remote control aircraft easier m...

Страница 7: ...7 VMAR CHALLENGER 40ARF TRAINER TM NOTES NOTES TM This page left intentionally blank TM This page left intentionally blank...

Страница 8: ...ar joiner is a slightly V shaped piece of wood that will serve to join the wing halves together and provide strength to the wing when in the air R R R R R STEP 2 1 TERMS TO REMEMBER R R R R R 2 2 9 Ex...

Страница 9: ...are lining up with two receiving holes in the opposite wing root R R R R R 2 2 17 Continue working with the wing turned over so that you are looking at the bottom of the wing with the leading edge fac...

Страница 10: ...ork epoxy into the second wing spar joint cavity It is important to work 30 Minutes Epoxy into the wing spar joint cavities of the left and right wings Don t scrimp on the epoxy Use lots USE 30 MINUTE...

Страница 11: ...ace in the left wing root and that the two wings are both facing up and the wing spar joiner is right way up Work forward from the trailing edge towards the leading edge peeling away more of the backi...

Страница 12: ...R R R R R Servo R R R R R Servo mounting screws and grommets as supplied with the servo R R R R R Servo control arm as supplied with the servo R R R R R Two aileron control rod AC assemblies from the...

Страница 13: ...en viewed from the back R R R R R 2 6 11 With the wing top side up and viewed from the back ensure that moving the transmitter aileron stick to the right raises the right aileron and lowers the left a...

Страница 14: ...ing items from the Main Gear Parts Bag The main landing gear must be assembled before it can be installed See Step 3 1 if you have not yet assembled the main landing gear R R R R R 4 Sheet metal screw...

Страница 15: ...n firmly into the slots Tapping with the handle and then the blade of a screwdriver will help seat the gear wires into the slot Install the 2 landing gear straps MGRS approx 9 mm x 21 mm 3 8 x 7 8 in...

Страница 16: ...R R 3 3 4 Place the ultralight treaded wheels W on the pre bent nose gear wire R R R R R 3 3 5 Install the second wheel collar COL on to the pre bent nose gear wire Leave enough of a gap to allow the...

Страница 17: ...lat notch filed in the front face of the nose gear wire that is intended to align with and provide a seat for the steering arm set screw Push the nose gear wire down further into the nose gear block a...

Страница 18: ...4 1 6 Ensure that the external metal tubes are pointing upwards as depicted here and then tighten the cinch bolt in the centre of the stopper until the external plastic disk begins to dimple inwards...

Страница 19: ...l tubes so that the tubing temporarily joins the metal tubes and seals them off against dust debris and sealant You will temporarily reinstall the tank again in Step 4 4 after locating the battery pac...

Страница 20: ...n the screws only enough to tack the engine into place for now R R R R R 5 1 1 Remove the muffler prop nut and prop washer from your engine Engines vary quite a bit in sizes styles and brands but most...

Страница 21: ...r R R R R R 5 2 3 Double check that you have the metal fuel line from the tank connected to the carburettor and that the metal pressure line from the tank connected to the muffler R R R R R 5 1 7 Conf...

Страница 22: ...R R R R 6 1 11 Lie the fuselage on its side Check the slot in the fuselage that has been machined near the tail to accommo date the horizontal stabilizer You may find a factory installed spacer in th...

Страница 23: ...izer apply some glue to the contact area on the bottom of the stabi lizer R R R R R 6 2 12 Carefully slide the horizontal stabilizer into the slot in the fuselage Move it foreward and backward and wig...

Страница 24: ...nted end facing away from you R R R R R 6 3 4 Locate the rudder control horn hole in the rudder The hole is located about 15 mm 5 8 in from the bottom of the rudder and about 10 mm 3 8 in from the hin...

Страница 25: ...tself R R R R R 6 4 9 Apply 30 Minute Epoxy into and along the exposed wood sides of the slot in the top of the fuselage R R R R R 6 4 10 Carefully slide the vertical stabilizer into the slot in the f...

Страница 26: ...dio compart ment are above the tray before screwing the tray into place R R R R R 7 1 9 Mount the elevator servo second with the servo output arm more towards the back of the fuselage Note the elevato...

Страница 27: ...is taped at its neutral position and it is connected to the elevator control rod and clevis R R R R R The rudder is taped at its neutral position and it is connected to the rudder control rod and clev...

Страница 28: ...4 10 Turn on your transmitter and then your receiver Confirm that the neutral positions are sustained R R R R R 7 4 11 Move the transmitter throttle rudder and eleva tor sticks and ensure that the ap...

Страница 29: ...ence of specific instructions from the radio manufacturer it is recommended that the receiver be placed where it is least likely to suffer dam age from impact during a crash Keep the battery pack and...

Страница 30: ...tly remove the fuel tank and extract the battery pack from where it was located earlier under the fuel tank Reposition the battery pack further aft into the radio compartment Pad the battery pack secu...

Страница 31: ...should do a thorough review of the entire model BEFORE YOUR FIRST FLIGHT Check every thing twice Every hook up every coupling everything Do the TUG TEST Tug on all control surfaces hinges clevises and...

Страница 32: ...CALE VMA C0014 NAVAHO SPORT 40ARF VMA N0014 STILLETTO AEROBATIC 40ARF VMA S0014 RCAF CHIPMUNK SEMI SCALE 40ARF VMA C0024C RAF CHIPMUNK SEMI SCALE 40ARF VMA C0024B AT 6 TEXAN SEMI SCALE 40ARF VMA AT001...

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