Phenom Assembly
12-12-2006, 11:22 PM
#1
Phenom Assembly
the other day I finally cleared off the bench and got the Phenom for assembly.
The manual has about 16 pages with photos and in English!
started with cuttin the slots for the wing spars. Wings and fuse have a scribed lines to mark location of the spars. Drilled a series of 3/32 holes and took a dremel to make a slot the filed the edge of the slot flush to the formers in the fuse and wing.
Next I cut the tank opening for the 8 oz Jett bubbless tank. Tank and line end up with interference with the throttle servo pocket. Oakdale OK'd my request to cut new servo pocket. Layout and cut the new pcket and find a former about 3/4" down . Hmmm a standard servo is going to stick up too haigh and hit the pipe! Reduce the pocket size and use a Hitec HS-81 miniservo. Grind a bit on the cowl rails to get the Dub Jett .60LX FIRE to sit nice and mock-up for the engine & pipe over the tank and servo. I will use a straight headder...A trip to the LHS .
The manual has about 16 pages with photos and in English!
started with cuttin the slots for the wing spars. Wings and fuse have a scribed lines to mark location of the spars. Drilled a series of 3/32 holes and took a dremel to make a slot the filed the edge of the slot flush to the formers in the fuse and wing.
Next I cut the tank opening for the 8 oz Jett bubbless tank. Tank and line end up with interference with the throttle servo pocket. Oakdale OK'd my request to cut new servo pocket. Layout and cut the new pcket and find a former about 3/4" down . Hmmm a standard servo is going to stick up too haigh and hit the pipe! Reduce the pocket size and use a Hitec HS-81 miniservo. Grind a bit on the cowl rails to get the Dub Jett .60LX FIRE to sit nice and mock-up for the engine & pipe over the tank and servo. I will use a straight headder...A trip to the LHS .
12-13-2006, 11:17 PM
#4
RE: Phenom Assembly
night 2
Fitted the Jett 60 LX and drilled the mounting holes
Fitted the fins to the fuse. There is a piece of plywood to be inserted into each of the fins. An antirotation pin to be installed 1" back from the front of the fin. Slots cut though the top of the fuse and 2 holes dremel drilled. These locations are scribed on the fuse and fins. Only have to measure the fin for the pin hole. I put these holes in on the same angle as the "hook" on the lower end of the fin that mates to the back of the fuse. This will allow for the fins to be inserted sliding forward and down into place.
Fitted the Jett 60 LX and drilled the mounting holes
Fitted the fins to the fuse. There is a piece of plywood to be inserted into each of the fins. An antirotation pin to be installed 1" back from the front of the fin. Slots cut though the top of the fuse and 2 holes dremel drilled. These locations are scribed on the fuse and fins. Only have to measure the fin for the pin hole. I put these holes in on the same angle as the "hook" on the lower end of the fin that mates to the back of the fuse. This will allow for the fins to be inserted sliding forward and down into place.
12-17-2006, 12:25 AM
#6
RE: Phenom Assembly
After testing the 30 minute epoxie, set time and full cure strength, the blades and pins were glued into place. Note that photo in manual has anti-rotation pin perpindicular to fin base. I put my pins in on the same angle as the plate and hook of the fin. Glue grooves were cut into the plywood plates both sides for added strength. Also I made up some 3/8 x 3/8 x 1/8 plywood squares & with medium Cya doubled the up the pads for the hatch mounting screws, needed no, but my personal choice.
Photo 1: The red crosshatching approximates what I did with the dremel and a 1/8" carbide ball nose burr.
Photo 2: Large red arrow shows the direction of the fin movement as it is being assembled. Red boxes to highlight changed from instructions.
Photo 3: Fins mounted but no glued yet all fitting will be done before gluing of final assembly.
Photo 1: The red crosshatching approximates what I did with the dremel and a 1/8" carbide ball nose burr.
Photo 2: Large red arrow shows the direction of the fin movement as it is being assembled. Red boxes to highlight changed from instructions.
Photo 3: Fins mounted but no glued yet all fitting will be done before gluing of final assembly.
12-17-2006, 02:06 AM
#7
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RE: Phenom Assembly
ORIGINAL: Crazy4Flight
it is an 8 oz round tank from Jett Engineering. I was too long but I cut a new hole and stuck a Hitec HS-81 in place.
it is an 8 oz round tank from Jett Engineering. I was too long but I cut a new hole and stuck a Hitec HS-81 in place.
12-17-2006, 10:33 AM
#8
RE: Phenom Assembly
Vasek,
I have not run my JETT 60 LX FIRE yet. I do not know of its fuel consumption. I would guess about 6 minutes, at WOT, based on other piped engines I have run in the past. And after six minutes it is time to land and relax. In the past I would fly my Whip or Magnum for about 3 minutes flat out slow to about 80-100mph for a few laps around the patch and then open it up again. Both of those planes had Jett .50
bob
I have not run my JETT 60 LX FIRE yet. I do not know of its fuel consumption. I would guess about 6 minutes, at WOT, based on other piped engines I have run in the past. And after six minutes it is time to land and relax. In the past I would fly my Whip or Magnum for about 3 minutes flat out slow to about 80-100mph for a few laps around the patch and then open it up again. Both of those planes had Jett .50
bob
12-18-2006, 10:18 AM
#10
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RE: Phenom Assembly
Thats why the throttle arm is made out of soft steel. Bend, form and drill it as desired.
Of note, sometimes it works out better in some installations if you re-align or invert the arm so it runs over the "top" of the carb.
Bob, this 60 deg weather isnt going to last for ever !! Finish that thing
Of note, sometimes it works out better in some installations if you re-align or invert the arm so it runs over the "top" of the carb.
Bob, this 60 deg weather isnt going to last for ever !! Finish that thing
12-23-2006, 07:10 PM
#11
RE: Phenom Assembly
The Jett 60LX is mounted with 6-32 socket head cap screws.
Screw holes in the botton of the fuse were opened up to bout 1/2" diamater and cardboard tubes installed. This will keep dirt out of the fuse.
Cowl has been fitted and mounted.
Throttle ball link still hits inside of cowl at 3/4 + throttle, ajust ments needed.
Spinner is temporay. A Tru-Turn spinner will be installed before flight.
Screw holes in the botton of the fuse were opened up to bout 1/2" diamater and cardboard tubes installed. This will keep dirt out of the fuse.
Cowl has been fitted and mounted.
Throttle ball link still hits inside of cowl at 3/4 + throttle, ajust ments needed.
Spinner is temporay. A Tru-Turn spinner will be installed before flight.
12-23-2006, 11:27 PM
#14
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RE: Phenom Assembly
No problem with the throttle linkage just wire it wide open!!!!. Is the pipe going to clear the tank. I've got a DF BAE Hawk I'm working on as soon as that is done I will get the Phenom going. I need to call and order a 60LX but I was waitng to see how the pipe will fit yours is looking sweet can't wait to get to work on mine.
12-24-2006, 10:49 AM
#16
RE: Phenom Assembly
All fuel lines will be under the cowl. Fuel tank sits very low in fuse and the pipe will go over the top clearance is no problem.
For the pipe support, I epoxied a 3/8 x 3/4 balsa stock, cut to height, just in front of the former seperating the radio and fuel tank compartments. inside the fuse.
A Du-Bro fueler valve will be mounted behind and down a bit from the needle valve. See where the arrow is pointing about there. I have to make a bracket and cut the cowl. I did not care to snake fuel lines the the thin cowl because vibrations and the sharp edges would cut through the fuel lines.
Not picture are the mounting tabs for the cowl. I had to move some since the was an interference problems with the Jett 60LX.
A small grommet will be installed in the hole for the needle valve.
For the pipe support, I epoxied a 3/8 x 3/4 balsa stock, cut to height, just in front of the former seperating the radio and fuel tank compartments. inside the fuse.
A Du-Bro fueler valve will be mounted behind and down a bit from the needle valve. See where the arrow is pointing about there. I have to make a bracket and cut the cowl. I did not care to snake fuel lines the the thin cowl because vibrations and the sharp edges would cut through the fuel lines.
Not picture are the mounting tabs for the cowl. I had to move some since the was an interference problems with the Jett 60LX.
A small grommet will be installed in the hole for the needle valve.
12-24-2006, 02:43 PM
#18
RE: Phenom Assembly
Cut a slot in the fuse for the quick fueler. Aluminum bracket made from salvaged landing gear. Thirty minute epoxy with milled glass fiber added to it for strength.
A standard nylon clevis replaced the ball link on the throttle arm of the carb to correct interference problem.
A standard nylon clevis replaced the ball link on the throttle arm of the carb to correct interference problem.
12-24-2006, 11:25 PM
#20
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RE: Phenom Assembly
That is looking sweet, I have never tried a Dubro fueler valve with a Jett tank, my initial reaction was it could be an issue with evacuating the tank but after thinking about it should work fine. I wish I had thought about that on some other planes, fuel lines always seem to be an issue.
12-25-2006, 09:51 AM
#21
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RE: Phenom Assembly
That looks like a nice way of fueling it. I've tended to avoid them, as I've seen too many that have leaked, or sucked air. Although many people are using them. I would suggest cutting down the fuel line from the fueler valve to the needle (the purple one) it looks longer than it needs to be. One of the reasons I asked about the fuel lines, is that I like to pinch the line to get a feel for needle setting. Having it enclosed makes that difficult to do, but obviously, much cleaner.
Nice job so far, can't wait to see it finished and a flight review. I'm tempted to pick one of these up!
Nice job so far, can't wait to see it finished and a flight review. I'm tempted to pick one of these up!
12-26-2006, 09:53 PM
#23
RE: Phenom Assembly
Servos are mounted into the wings.
Hatches drilled and servo arm slots cut.
4-40 pushrods made and silver soldered.
Servos used Hitec: HS-5645 MG Digitals with aluminum arm.
I added 1/16 ply to inside of the wing where the servo mounted
For added wing strength and to raise the servo, no picture.
Hatches drilled and servo arm slots cut.
4-40 pushrods made and silver soldered.
Servos used Hitec: HS-5645 MG Digitals with aluminum arm.
I added 1/16 ply to inside of the wing where the servo mounted
For added wing strength and to raise the servo, no picture.
12-30-2006, 04:44 PM
#24
RE: Phenom Assembly
Today I go the fins fitted and glued down with 30 min epoxy and milled glass fibre.
Next I fitted the spars, sanded off 1/16" per end and put radii on the corners.
Glue them in with 30 min epoxy. The are held in place against the fuse formers with a servo screw in the center and wedges in the slots that the spars fit through. The last picture has a red circle showing the screw I added to hold the spar up tight to the former. The screw was installed prior to assemble in the test-fit process.
A 2" True-Turn spinner was installed matches the cowl diameter dead on.
Next I fitted the spars, sanded off 1/16" per end and put radii on the corners.
Glue them in with 30 min epoxy. The are held in place against the fuse formers with a servo screw in the center and wedges in the slots that the spars fit through. The last picture has a red circle showing the screw I added to hold the spar up tight to the former. The screw was installed prior to assemble in the test-fit process.
A 2" True-Turn spinner was installed matches the cowl diameter dead on.
01-03-2007, 12:10 AM
#25
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RE: Phenom Assembly
I called Dub today and ordered a 60LX FIRE and Pipe and a 2" spinner, Dub said he is a few weeks behind which is fine, I'll hopefully start this week and just work on everything up to the engine installation. Yours looks like its about ready for the airbrush treatment.