Recent Attachments for MetroGTi
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EDF with added spar (top and Bottom)
Proposed alternate spar layout
Bottom fuselage sides and formers installed. Time to glue the bottom on.
Wing tip LED strip to dorsal LED strip wires taped down.
Dorsal LED strip wires soldered to bottom fuselage LED strip. Wires are then taped down.
Wing tip plate attached.
Wing tip LED strip and depron backer glued to wing. Tip plate yet to be attached.
Wing tip LED strip soldered in place.
LED strip is glued as a fillet between wing and dorsal fin.
LED strip will mount on top of wing. Wires go through holes poked in wing.
LED strip is attached to 3mm depron with 45 degree bevels on the edges.
LED strips for dorsal fins. Wires will go to bottom fuselage LED strip and wingtip LED strips.
LED strip that will be covered by the lower fuselage. The rest of the LEDs will tap into this strip.
LED strip in nose of upper fuselage. Power connector fits 3S balance tap. Wires go from other end of LED strip to bottom of plane.
v2.0 Pylon Mod.pdf
v2.0 Balance Location
v2.0 Thrust Angle Mod
The ESC location in the fuselage.
With a pylon mounted motor, the slightest vibrations can become amplified to destructive levels. It is important to run a correctly balanced propeller. I shortened the shaft on the motor about 1/4 inch to lessen the effect of any propeller vibration.
The motor leads may require extensions to reach the ESC through the channel in the pylon. I extended the leads on my motor by about 2 inches
Donít forget to tape down the elevon servo leads.
You may want to cover the bottom surface of the floats for durability. Iron on film covering can work well for this. Packing tape can be used as well.
Repeat the previous process for the rudder pushrod.
Test fit the elevon control horns to the elevons and measure the required length for the pushrods. Assemble the elevon pushrods to the required length. Fit the pushrods to the servo arm and the control horn then glue the control horn in to place.
Make sure the wing tips are perpendicular to the wing.
Test fit the wing tips to the wing. Glue them in place when you are satisfied with the fit.
Be sure to assemble a Right and a Left wing tip.
Assemble the wing tips by gluing 2 Tip Floats to each Tip Plate.
Test fit the Ventral Fins to the slots in the bottom of the wing. When satisfied with the fit, glue them in to place. Make sure they are perpendicular to the wing.
Hinge the rudder to the Vertical Stab.
Test fit the Vertical Stab to the wing. Enlarge the slots in the wing if necessary for proper fit. Glue the vertical stab in place. Make sure it is perpendicular to the wing.
Prepare the Rudder and Vertical Stab for hinging by beveling the leadin edge of the rudder and the trailing edge of the Vertical Stab.
Test fit the float assemblies to the bottom of the wing using the tabs for alignment. When satisfied with the fit, glue the float assemblies to the bottom of the wing.
Glue the Float Bottom to the float assembly. When the glue joint has dried, bevel the rear edge of the Float Bottom and round the tip of the float assembly.
Preform the Float Bottom to match the curve of the float sides.
Use an emery board or a sanding stick to square up the lower edges of the float sides.
Glue the Float Rear to the float assembly. When the glue joint has dried, bevel the edges of the Float Top & Float Rear to match the float sides.
Glue the Float Outside to the float assembly, making sure the side is perpendicular to the top. When the glue joint has dried, bevel the rear edge of Float Top to match the sides.
Also, be sure to assemble a Left and a Right float.
Glue the Float Outside to the Float Top. Make sure the side is perpendicular to the top.
Preform the Float Inside & Float Outside to match the curves of Float Top.
Each float consists of 5 Depron parts: Float Top, Float Inside, Float Outside, Float Rear & Float Bottom.
Before gluing the Nose piece in place, make sure the hatch can be opened and removed. You may need to trim tab at the front of the hatch slightly for the hatch to be removed completely.
It should fit like this.
With the hatch in place, perform the Depron part labeled Nose to fit the front of the fuselage. There needs to be a bit of a bevel at the front of the Nose piece.
Glue the second magnet into the hatch. Make sure the magnet polarity is correct or it will not hold the hatch closed.
Use a hobby knife or a rotary tool to create a pocket in the hatch for the second magnet.
Place a second magnet on top of the first. Use a dab of paint or a felt tip marker to transfer the location of the magnet to the inside surface of the hatch.
Test fit the hatch to the fuselage.
Use a gap filling adhesive to secure the sides of the air intake.
Gently bend the air intake portion of part Hatch 1 down until the outside surface of the air intake matches the inside surface of the hatch. Use a sharp hobby knife to trim away a wedge of Depron from the inside surface of the hatch to open up the rear o
Test fit part Hatch 3 between parts Hatch 2. When you are satisfied with the fit, glue part Hatch 3 in place
Test fit the Hatch 2s to Hatch 1. When you are satisfied with the fit, glue them in place.
Gently preshape the part Hatch 1 to match the upper curve of the fuselage. Repeat with parts Hatch 2 matching them to the curve of the fuselage sides.
The hatch is assembled from the Depron parts Hatch 1 through Hatch 3.
Test fit the Fuse Tail pieces to either side of the pylon. Sand them to fit if necessary then glue them in place
Check the fit of the Magnet mount in the fuselage. Sand it to fit if necessary the glue in place.
Glue a rare earth magnet into the hole in the Depron part labeled Magnet.
Test fit the pylon to the slots in the wing. Glue the pylon in place. Make sure it is perpendicular to the wing.
Glue the Fuse Sides, nose Former and rudder servo in place. Be sure the Fuselage Sides are perpendicular to the wing. After the glue has dried, use an emery board or a sanding stick to square up the top edges of the Fuse Sides.
Align and glue the Pylon 4s to the upper sides of the pylon. Glue the plywood motor mount to the pylon. Sand the pylon to round the edges and streamline the pylon to suit your taste.
Align and glue parts Pylon 1 and Pylon 2 to one of the Pylon 3s. Glue the remaining Pylon 3 to the exposed sides of Pylon 1 and Pylon 2 creating a channel for the motor wires to run through the pylon into the fuselage.
The motor mount pylon will be assembled from the Depron parts Pylon 1 through Pylon 4.
Bevel the edges as necessary to get the best fit.
Test fit the nose Former to the front of the fuselage.
Then glue the Dorsal Fins in place. Be sure they are perpendicular to the wing.
Remove the dorsal fins and glue the elevon servos in place.
Mark the locations for the Elevon servos on the wing.
Establish where the servo leads need to enter the fuselage, and cut a small notch in the Fuse Sides to allow the servo leads to pass through.
Test fit the Dorsal Fins and servos to the wing assembly.
Check the size of the servo opening in the Dorsal Fins and enlarge if necessary.
On the bottom of the wing, bevel the ends of the slot to provide clearance at the ends of the servo travel.
Cut the slot for the rudder servo arm through the wing.
Test fit the rudder servo into the Fuse side. Enlarge the servo hole if necessary. Mark the location where the servo arm will pass through the wing.
Test fit the fuselage sides into the slots in the top of the wing assembly. Do not glue them in yet. (The top of the wing assembly is the side without the bevels at the hinge lines)
Gently perform the Fuse Sides to match the curve of the slots in the wing assembly.
Beveling the tabs.
Beveling the tabs.
Cleaning out the slots with an emery board or sanding stick.
The prepped servos
And glue the Wing 3/Elevon assemblies to the Wing 2/Wing 1 assembly.
Glue the rear spar to the Wing 2/Wing 1 assembly. Check the fit of the Wing 3/Elevon assemblies to Wing 2 and the rear spar. Sand the tabs on the Wing 3s if required to insure a tight fit.
Wing 2 is then glued to Wing 1 & the forward spar.
Check the fit of Wing 2 to Wing 1 and the forward spar. Sand the tabs on Wing 1 if required to insure a tight fit between Wing 2 and the spar.
The forward carbon spar is glued to Wing 1.
Hinge the Elevons to the Wing 3s using your favorite method. I have used Foam-Tac hinges in this photo.
The leading edges of the Elevons and the trailing edges of the Wing 3s are beveled prior to hinging. Be sure to bevel the right and left sides as mirror images.
The wing platform will be assembled from the following Depron parts: Wing 1, Wing 2, Wing 3 (x 2) & Elevon (x 2).
Blu-F-O_CNC 24x48 v2.pdf
H-Blu-O CNC 24x48 v2 Sheet 2.pdf
H-Blu-O CNC 24x48 v2 Sheet 1.pdf
H-Blu-O 3D Iso 2013-05-17.pdf
One of our members modified his into a Bat-F-O
Pre-Cut foam parts sheet and Parts Kit
Pinion and Idler
Finished Idler Gear Assembly
Finished Pinion Gear Assembly
Left to Right: New gear blank, Modified gear blank, Original plastic gear
Damaged plastic gears after being pressed off the metal shaft/gear
Love WR-1 aka Loving's Love
The finished product.
The scoop fits inside the cowl.
Left to right: the plug, a vac formed scoop, and a trimmed & painted scoop. In back is the modified cowl.
My motor & mount
BluFO NACA Intake.pdf
Second BluFO prototype
BLU-F-O Part Layout.pdf
12" ws Mini Blu-F-O
Blu-F-O Second Prototype
Blu-F-O First Prototype
BLU-F-O Part Layout.pdf
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