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Mountain Models P-51 Mustang, Assembly Manual, Page: 3 / 33

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Mountain Models P-51 Mustang Assembly Manual Download Page 3

3 

Copyright 2005-2011 Mountain Models 

Brushed Power System:

 

 

1.

 

GWS EPS350C-DS Motor/Gear Box 

2.

 

Micro Electronic Speed Control (10A Minimum) 

3.

 

GWS 10x8 (2-Blade or 4-Blade) Propeller 

4.

 

8-Cell, 650 mAh NiMH Battery 

 

Brushless Power System: 

 

1.

 

Himax 2015-4100 Brushless Motor, GWS Gearbox (“D”, 6.6:1) or Himax Gearbox (Recommended), 10x8 4-blade propeller, and a 
3S LiPo battery. 

2.

 

Himax 2015-4100 Brushless Motor, GWS Gearbox (“C”, 5.53:1) or Himax Gearbox (Recommended), 10x8 2-blade propeller, and 
a 3S LiPo battery. 

3.

 

Himax 2015-5400 Brushless Motor, GWS Gearbox (“C”, 5.53:1) or Himax Gearbox (Recommended), 9x7 2-blade propeller with 
3S LiPo or 10x8 4-blade propeller with 2S LiPo battery. 

4.

 

Himax 2015-5400 Brushless Motor, GWS Gearbox (“D”, 6.6:1) or Himax Gearbox (Recommended), 9x7 or 10x8 2-blade 
propeller, and 3S LiPo battery. 

 

Other Items That You Should Have: 

 

1.

 

CA (Super Glue, thin and thick) 

2.

 

Plastic Wrap or Wax Paper 

3.

 

X-Acto Knife and Blades 

 
 

GENERAL INFORMATION: 

 
Thank you for purchasing the Mountain Models 1/12 Scale P-51 Mustang Electric Park Flyer. We believe this model fits an area that has 
been largely ignored or done poorly to date. We strived to provide a laser cut kit that provides the builder a properly engineered, nicely 
finished, lightweight, great flying park flyer that is as scale as possible. 
 
Designed in 3D CAD, we used interlocking laser cut parts throughout, to make assembly as easy as possible, locking parts together for proper 
alignment and fit. This kit is designed for the novice to intermediate builder and the somewhat experienced pilot in mind. 
 
You should have some experience with tail draggers, knowing how to use the rudder and elevator on takeoff runs. Once in the air, however, 
even the novice can fly this model. If you don’t have tail dragger experience, get some help from someone that does and you’ll be fine flying 
this model. You’ll be the envy of pilots at your field when you show up with this model. They won’t believe what they’re seeing! 
 
Please let us know about your experiences building and flying this model. We look forward to customer feedback and want to know how 
you’re doing with it! 
 
Thank you, 
 
Brian Eberwein 

[email protected]

 

 
Mountain Models 
2935 N Lynndale Drive 
Appleton, WI 54914 
 

ASSEMBLY ADVICE: 

 

1.

 

READ THE INSTRUCTIONS all the way through and study the plans BEFORE starting any work on this model! 

2.

 

Make sure you completed the above. Yes, this is important enough to state twice. 

3.

 

Tape the plans to your nice clean work surface and cover it with plastic wrap or wax paper. You do want to keep your work surface 
clean and not glue your parts to the plans, right? 

4.

 

DO NOT REMOVE ANY PART FROM THE SHEETS UNTIL YOU NEED THEM. Some of the parts are delicate and you do 
NOT want them laying around getting damaged before you need them. 

5.

 

DO NOT FORCE the fit of any part. If the fight seems too tight, stop, make sure you have the right part and it’s going in the right 
way. If it’s still too tight, lightly sand the part so it fits. 

6.

 

DO NOT GLUE ANYTHING until you are told to do so. If you glue something before you are told, there is a chance that parts 
after it may not be able to be assembled without modification or breakage. 

7.

 

Make solid glue joints. You will be tack gluing in some steps and reinforcing those joints later on. Make sure to reinforce the joints 
when told, so you end up with a nice strong airframe. 

Summary of Contents for P-51 Mustang

Page 1: ...ted for any damage resulting from the use by the user of the final user assembled product By the act of using the user assembled product the user accepts all resulting liability If the buyer is not prepared to accept the liability associated with the use of this product the buyer is advised to return the kit immediately in new and unused condition THIS PRODUCT IS NOT INTENDED FOR CHILDREN 12 YEARS...

Page 2: ...aterial Screws Gear Mount 8 7 Pull Pull Parts Bag 6 ea Micro Servo Connector 6 ea Servo Connector Backer 6 ea Servo Connector Lock Screw 4 ea Cotter Pin 8 ft Pull Pull Line 8 Decal Bag 2 ea Stars and Bars for Fuselage Sides 2 ea Stars and Bars for Wings Recommended Items for Finishing 1 1 Roll Lightweight Covering So Lite or Similar 2 Extra Covering or Trim Sheets for Details as Needed 3 Paint for...

Page 3: ...rience with tail draggers knowing how to use the rudder and elevator on takeoff runs Once in the air however even the novice can fly this model If you don t have tail dragger experience get some help from someone that does and you ll be fine flying this model You ll be the envy of pilots at your field when you show up with this model They won t believe what they re seeing Please let us know about ...

Page 4: ... all joints with thin CA Lay wax paper or plastic wrap over the completed left side and assemble the right side parts over it Secure all joints with thin CA 2 Remove the 3 32 Balsa F6 part from the sheet Get the rare earth magnet from the bag Turn F6 so the text is facing the work surface Press the magnet into the hole as shown in the image below Use thin CA to secure the magnet in place 3 Assembl...

Page 5: ...the image below with side flush with the magnet facing away from F7 Make sure that the triangular F28 parts are facing to the long end of F6 as shown After you double check that they are oriented properly make sure they are at a 90 degree angle to each other and secure with thin CA 7 Press the 3 32 F5A and F8 parts onto the ends of F6 making sure they are on the correct ends After everything lines...

Page 6: ...DO NOT glue them yet Press the assembled F14 F15 piece into place as shown in the image below DO NOT GLUE ANYTHING YET 11 Assemble the fuselage LEFT to the assembly from step 10 DO NOT GLUE anything yet Be careful and make sure all tabs are fully pressed in together and that everything is aligned properly See the image below for what it will look like when you are done Be gentle when pressing the ...

Page 7: ...in the image below but do NOT glue it yet 16 Be gentle with the stringers in the next step as they can break if you are not careful with them If they don t seem to fit please check to make sure they are oriented correctly and if they are still tight lightly sand the mating surfaces until they fit nicely Press the 1 8 F26 piece into place on the fuselage rear bottom center as shown in the image bel...

Page 8: ...the sides with thin CA After that is done start at F7 and work your way to the back end securing all of the formers to the fuselage sides with thin CA Make sure to keep an eye on the fuselage and ensure that it is straight and not twisted along the way After the formers are glued go ahead and secure the stringers with thin CA Your fuselage should be glued together now Make sure you do not forget a...

Page 9: ...e center 1 8 spine Start gluing the sheet to the formers pressing down to make sure it is in contact with all of the formers Do not glue all the way to the outside edges yet There may or may not be a slight overhang of the sheeting before trimming The parts are cut slightly oversize to account for different sheets shrinking differently when wetted Repeat this for the rear sheeting Use a sharp X Ac...

Page 10: ...rom the previous step with the washer DOWN Place the 3 32 balsa formers in position and secure the joints with thin CA making sure they are at 90 degrees to the C1 part MAKE SURE you glue them as shown in the image below so the magnet will hold the canopy down 27 Remove the motor stick parts from the 1 8 plywood sheet Assemble it as shown in the image below Be sure to make good glue joints 28 Set ...

Page 11: ...y are all on one sheet in the lower left corner Assemble V1 V2 and V3 over the plan sheet and secure with thin CA 2 Place V7 in position as shown below but do NOT glue it yet Make sure it is pushed up against V1 3 Assemble V6 as shown below but do NOT glue it yet Make sure the tabs from V1 and V2 are pushed fully into V6 ...

Page 12: ... not to damage the 1 16 ribs press V4 into place but do NOT glue it yet Make sure all of the parts are fully pressed together the vertical fin is straight and secure all joints with thin CA 6 Locate and remove the R1 to R5 parts from the same 1 8 sheet used in the Vertical fin They are all in the section next to the vertical fin parts Assemble R1 R2 R3 and R4 over the plan sheet and secure with th...

Page 13: ...nter of the part should be facing the outside The line is a sanding reference For later on Make sure all the tabs are fully pressed into it being careful not to damage the 1 16 ribs Make sure all parts are fully seated the rudder is straight and secure all joints with thin CA 9 Assemble the 1 8 R9 parts as shown below 1 on each side of the rudder making sure the slot is lined up on the rudder and ...

Page 14: ...lue them yet Then install the inside parts as shown on the plans After all the parts are installed secure all joints with thin CA making sure the parts are flat on your building surface 13 Locate and remove the elevator parts from the 1 8 balsa sheet They are all in the same section on the sheet Start with the outside parts E1 E2 E3 and E4 assembling them over the plan but do NOT glue them yet Ins...

Page 15: ...u don t slip and break anything else while doing this Apply thick CA to the inside of the 1 32 ply parts and glue them to the W3 ribs making sure they are matched up and the tabs are fully pressed into the spar 3 Find the W5 ribs on the 3 32 sheet BE CAREFUL with these ribs The front end where the retract mounts go through is very thin CAREFULLY remove them from the sheet and set them on your work...

Page 16: ... retract mount through If the small front section breaks off you can glue it back on later after the wing is mostly assembled Repeat this for the other side of the wing 5 Locate and remove the W4 and W6 parts from the 1 16 plywood sheet Press them into the notches in the spar and press the retract mount tabs into the ribs Do NOT glue them at this time Repeat this for the other side of the wing 6 L...

Page 17: ...r the plans making sure the center section is square and the ribs are fully pressed into the spar and all tabs are fully pressed into the notches and secure the center section pieces with thin CA 9 Glue W29 onto the back of the center section of the spar as shown below making sure it is flush top bottom Locate and remove the W7 W8 and W9 ribs from the 1 16 sheets Slide them into the slots on the s...

Page 18: ...1 16 balsa sheet Press them onto the leading edge as shown in the image below Make sure they are pressed fully against the W13 piece The text on these parts will be facing outward and up Do NOT glue anything yet 12 Locate and remove the BOT and TOP spar caps from the 1 16 balsa sheet BOT means bottom and TOP of course means top Start with the bottom spar caps and press them on the notches in the r...

Page 19: ... for the rear of the wing The other 2 that look similar are the top ones With the left wing panel flat on the building surface set the top one in place as shown in the image below Make sure it is fully in the notch in the ribs and secure it with thin CA Repeat for the other side of the wing The caps do not need to be flush to the top the rear spar but can sit at a V there 15 Turn the wing over and...

Page 20: ... match the ribs on either side 18 Locate and remove the W18 part from the 3 16 balsa sheet Press it into place as shown in the image below and secure with thin CA 19 Locate and remove the W30 and W31 parts from the 1 8 balsa sheet Install them as shown below making sure they are on the right side W30 in front and W31 behind the spar and secure them with thin CA Make sure they are pressed down all ...

Page 21: ...ecure the parts with thin CA 21 Locate and remove the RT3 and RT4 parts from the 3 16 balsa sheet Install them as shown below RT3 goes in the front RT4 goes in the back Make sure they are pushed in fully and secure them in place with thin CA 22 Locate and remove the W25 and W26 parts from the 3 16 balsa sheet Install them as shown below Make sure you have them oriented properly Do NOT glue them at...

Page 22: ...op of thick CA to the front of the ribs and apply the front of the sheeting as shown below Then use thin CA to glue the entire front part of the sheeting to the leading edge 26 Press the sheeting down onto the ribs and line up the back edge of the sheeting with the spar cap You may need to sand the back edge just slightly for a good fit Turn the wing over so you are looking at it from the top Whil...

Page 23: ...tringer slots in the rib Pressing it down into the slot use thin CA to secure it in place You can trim the outside end even with the rib or notch it and bend it down to glue to the top of the wing tip whichever you prefer Glue the remaining stringers in place as shown in the image below and repeat for the other side of the wing 32 Trim the building tabs off of the bottom of the ribs with a sharp X...

Page 24: ... CA 6 Carefully press the A7 1 8 balsa part into place as shown in the image below Be careful not to damage the part as you are putting it in place Make sure it is pressed into place properly with the ribs flush to the outside The outer bottom of A7 will be aligned with the tabs on A6 and on the bottom the back edge of A7 will be flush with the bottom of A6 When it is lined up right secure the joi...

Page 25: ... 1 16 plywood and 3 32 balsa parts from their sheets Line up the parts making sure the slot in FG2 lines up with the lines on FG1 Glue the parts together using thick CA Press them together while the glue dries to make sure you get a good glue joint here Do this for both sets of parts 5 Slide the landing gear through the assembly from the previous step as shown in the image below Apply thick CA or ...

Page 26: ...ribs Round off the very leading edge to finish the airfoil shape 4 Sand the aileron so the A7 part matches up with the top profile of the ribs and the bottom of A6 5 On the stab and elevator parts round all the outside corners 6 On the vertical fin round the outside corners On the Rudder round the outside corners Sand the balsa pieces where the control horn goes through to a nice bevel shape as sh...

Page 27: ... pushrod wires Make the bends as tight as possible 8 Install the pushrod on the retract as shown in the image below Install this retract unit in the LEFT wing with the screws that came with it and the retract pushrod running through the FRONT slot in W3 9 Install the other retract pushrod as shown in the image below Install this retract unit in the RIGHT wing with the screws that came with it and ...

Page 28: ...w to this We recommend lightweight covering such as So Lie or similar 3 If you are good at covering you can cover the vertical fin with the same piece as the fuselage side Else cover the fin first stopping the covering at the V7 then the fuselage sides and then the front of the vertical fin 4 You can cover the control horns if you would like Be sure to remove the covering from the section that get...

Page 29: ... in the stab elevator After they are all in secure them with a drop or two of thin CA Make sure you do not glue the stab and elevator together 14 Install the CA hinges in the fin rudder After they are all in place secure them with a drop or two of thin CA Make sure not to glue the fin and rudder together 15 Hinge the ailerons using light hinge tape or a clear Scotch type tape You can also do a cov...

Page 30: ...ront and back of the cockpit sitting just between the formers on the canopy frame Do NOT glue it to the frame yet 7 Trim the very ends off the canopy Do not trim too far inward Set the canopy frame in the fuselage and the canopy over the canopy frame Carefully mark the front and back of the canopy where it needs to be trimmed to fit the frame Just inside the opening in the fuselage You should hold...

Page 31: ...or the pull pull thread to go through as shown on the plans 8 When rigging the pull pull lines be careful not to wrap other lines as this can cause a not so smooth operation of the control surfaces 9 Tie one end of the pull pull thread to a cotter pin Press the cotter pin through the bottom elevator slit and run the cotter pin back to the servo connector Push the cotter pin about half way through ...

Page 32: ...the up or down position 21 Install your radio gear and flight battery and balance the model in front of the spar cap for your first flight You can shift it forward or aft to suit your flying style and preferences CONTROL SURFACE THROWS 1 Ailerons should be 5 8 UP and 3 8 DOWN 2 Elevator should be 5 8 UP and DOWN 3 Rudder should be 3 4 LEFT and RIGHT YOUR FIRST FLIGHT 1 Take pictures first It s as ...

Page 33: ...33 Copyright 2005 2011 Mountain Models ...

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