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  1. #51

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    RE: SCALE JET e-S76 build

    That's a relief,

    I am glad it was not too bad. Altitude is always your friend. It is one leg of the flight triangle. It is also the most forgiving.

    You know those little questions or saying you here in aviation over the years, such as;

    "What is the firing order of a turbine?",

    "What are the 3 useless things in aviation?",

    "I forgot more about aviation than you will ever know",

    "I was working in aviation when you were still pooping zinc chromate"

    I have earned the right to use many of these sayings because I have been in the field for over 31 years.

    The flight triangle, This one is so true.

    "As long as you have Altitude, airspeed,(Nr for helis, rotor speed) and ideas, you are golden".

    Loose one leg of the triangle, and you have a gravity issue, which in most cases, ends with sudden stopage into something much harder than your flying machine. If you are whitty, skilfull, and or lucky enough after loss of a single leg, you are a HERO, if not you are a Zero.

    Please note, there is only one letter difference between the two.

    I am glad it is all good,

    Butch

  2. #52
    Scale Heli Addict mkranitz's Avatar
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    RE: SCALE JET e-S76 build

    Hey, the shot clock has buzzed and it's time for your next post!!
    Michael Kranitz

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  3. #53

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    RE: SCALE JET e-S76 build

    Dang,

    I thought I had a few more seconds.

    I made the first castings from the IP molds. They came out pretty good but there is room for improvment. Micro air bubbles in the switches has been addresses by vaccume bagging. This panel is the very first one to see how the mold is. There is still work to be done but its getting there.
    We are up at the NEHP fun fly his weekend where I am hoping to get some forward flight on my 76. If so, you know there will be pics and videos for sure. There should be a lot of scale helis here. This is East Coast Scale country way up here in Mass.

    Butch

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  4. #54

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    RE: SCALE JET e-S76 build

    Hello,

    I thought I had better post something before the "Shot Clock "ran out again. LOL

    I have been putting some time into rough detail. The cockpit mainly, with the seats, the cockpit bulk head and over head panels. East Coast Scale (Vario) has some of the best scale stuff around. It may not be exactally what you need but it will give a very good starting point as I have done with his seats.

    I received the rest of the hinges for the cabin doors and remaining gear door. I can move forward to finish all the doors and get the gear 100% functional.

    Here are a few photos.

    Butch



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  5. #55

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    RE: SCALE JET e-S76 build

    External Lighting

    UIH

    When we build a scale heli, we try to duplicate every aspect possible. To be honest, I am the last guy to build a scale heli, much less, a Sikorsky S-76. Why, I have worked on them for 32 years.

    This, in and of itself, creates issues which drives me to drink. Is my ultimate goal to win something, sure. Does it matter, not one bit.

    The goal for me, to replicate, as true as possible, the full scale counter part. If I happen to fly the rotors off of it at the right place and time, my model is correct as possible, then good for me, if not, oh well. Its all about the build.

    One particular issue for me, the external lighting. I looked high and low for a system that would be as "true to scale" as possible. The 76 has some fairly unique sequencing for the external lighting system.

    The nice folks at East Coast Scale recommended Electro Dynamics for all of my lighting needs. OFD e-mail sent.

    Within a day, I received a reply, "What can we do for your project"

    I spilled the beans and low and behold, after sending the requirements and some video of what I was looking for, a custom lighting system appeared via e-mail.

    We had to "tweak" a few things here and there for my particular application with disconnects, wire lengths, and sequencing of the lighting system, but the end result, Electro Dynamics presented is a 100% correct external lighting system for the Scale Jet 76.

    Andy and all the folks at ED really really helped to make this happen.

    If you need something special, these are the guys to call.


    Butch

    The end result;
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  6. #56
    Scale Heli Addict mkranitz's Avatar
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    RE: SCALE JET e-S76 build

    It's official: you are one sick dude, Butch.
    Michael Kranitz

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  7. #57

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    RE: SCALE JET e-S76 build

    Michael,

    I got the papers to prove it too.

    Your templates are on the way. Let me know if you have any questions.

    Butch


  8. #58

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    RE: SCALE JET e-S76 build

    "SCHWING"

    UIH

    It happened, Yes, the gear on my SCALE JET 76 is functional with gear doors.

    Being it was another stellar day on LI, Not for human, but for duck, (I even think that would be questionable) with some help from sgfromny and ambravo, the gear looks great.

    The gear sequencing for door, and gear movement is all done internal to the TX with on sequencing devices. To do so, we are taking up 4 channels, however this allows us to not have any unnecessary devices installed to operate the gear.

    The 12x being as versatile as it is, really made this pretty simple. Once the curves were made and servo timing for the doors adjusted, it was pretty much done.

    Here is a vid of the gear.

    Butch

    [youtube]http://www.youtube.com/watch?v=FqEfy0sDuRM[/youtube]

  9. #59
    Scale Heli Addict mkranitz's Avatar
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    RE: SCALE JET e-S76 build

    Nice work here Butch! I need to extend the levers on my doors so they open higher. For now, however, I'm removing my gear and sending them off to Sandy for a nice powder coating!
    Michael Kranitz

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  10. #60

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    RE: SCALE JET e-S76 build

    Some Powder Coating,

    Nice. I think you should send your gear here, after powder coating, for me to look over and make sure its OK.

    I am not sure of the hinges you have installed on your gear doors, but lets talk about that before you move forward. Depending on the hinge, just a longer arm may not be enough. With the hinges I used from BVM, the top of the door needed to be trimmed, and a filler will be added to the fuse so the door would open enough to be a work platform as the full scale.

    With my install and hinges, the filler will only be about .195 or less. Its one of those trim to fit thingy

    Here is a couple of pics


    Butch

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  11. #61
    Scale Heli Addict mkranitz's Avatar
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    RE: SCALE JET e-S76 build

    You know, on second thought, maybe I should just fly the thing. It is a helicopter after all.

    mk
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  12. #62

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    RE: SCALE JET e-S76 build

    A good coat Krylon looks almost as good as powder coat from 5 feet.

    Don't you have like 8 feet of snow there?

    How do you fly in that?

    B

  13. #63
    Scale Heli Addict mkranitz's Avatar
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    RE: SCALE JET e-S76 build


    ORIGINAL: bwellmaker



    Don't you have like 8 feet of snow there?

    How do you fly in that?

    B
    Easy, you just fly above it.
    Michael Kranitz

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  14. #64

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    RE: SCALE JET e-S76 build

    fI kinda figured that.

    LOL

    So, do you like chop a hole in the snow and do the Air Wolf thing from the snow cave?

    What happens when you get a "White Out" when landing?


    I made a set of ski's for my R-50 some time ago. I had a blast doing 20MPH run on landings.

    I installed the drag braces on the gear this evening. I am using an elastic band for now but will take some measurements and install springs for the final install.

    This is looking pretty good.

    Butch



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  15. #65

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    RE: SCALE JET e-S76 build

    UIH

    Hello folks,

    Been some time scenes I have posted any progress on this build. I was able to get it into forward flight and fly a few laps around the pattern at our field last weekend. It took a lap or two to get the feel but by the 4Th or 5Th lap I had a pretty good handle on it. This thing is a monster. It really wants to go too. I have never flown a heli this big and heavy so it is a bit intimidating.

    I did receive the lighting from Electro Dynamics. This is a custom system which replicates the full scale 100%. Here is a video of the lighting in operation.

    Butch

    [youtube]http://www.youtube.com/watch?v=HUzt0hLXkSc[/youtube]


  16. #66

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    RE: SCALE JET e-S76 build

    Hello folks,

    UIH

    We waited out the "less than stellar" weather of the morning, and about 2 or 3 o:clock, the sun started peeking through. Waited all day for that.

    I did a couple of passes around the pattern a week or so ago, but did not really get the chance fly my Scale Jet 76 around to get a good feel for how it would fly. Well yesterday was the day, off it went 6 minutes of pattern flights.

    On the first departure, I had a little "bobble head" on the yaw stick while retracting the gear which startled me. I brought the heli back and started again. After a couple of passes with the gear down I sucked it up and this thing was off and running.

    This was also the first flight with the M-Blades main and tail. What a difference they made. The sound, the stability, and the visible coning is really cool. They seem to make the heli feel more nimble, quick, and just an all around lighter feel. Also, the M-Blades are perfect out of the box, CG and weight. There is no stabilizing device installed at this time and it feels very good. With the 90 degree CCPM biased 45 degrees, and the pitch horns also 45 degrees, there is no requirement for swash mixing in the TX, just adjust to the correct phasing with the follower, which by design, places the PC links perfectly straight up and down. Really does not get anymore simple than that.

    Here is a vid of yesterdays flight. I am still getting comfortable flying a 30lb heli and it needs some fine tuning here and there but the picture is starting to come together.

    Hey Michael, this thing is a rocket man. The faster if flies, the better it flies.


    Butch

    [youtube]http://www.youtube.com/watch?v=tkhoJqvJqXI[/youtube]

  17. #67
    Scale Heli Addict mkranitz's Avatar
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    RE: SCALE JET e-S76 build

    Butch, I applaud your cahones in running that thing around the sky! The first take off - back in looked hairy. After that, it seems like you got the jitters out. The lights are outta control!!

    Sandy is finishing up the paint work on my gear and then I'm going to actually fly this thing! I'll make sure to have a video camera on hand this time.
    Michael Kranitz

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  18. #68

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    RE: SCALE JET e-S76 build

    Michael,

    There will be no "Hangar Queens" in my hangar. Once I am comfortable and all the little bugs are worked out it will be ripping up the sky that's for sure.

    Yes the tail kick, Good think I had my extra absorbent Depends installed. Could be 2 things, A hardware/ECS issue, or I hit the yaw control after I retracted the gear. I went through everything on the tail and did not find anything mechanical however I did find room for some improvements. Mainly just making sure everything moves free as possible. On this flight, I did try another grease in the TGB which I was not happy with, so I went back to the tried and true green goop.

    I plan to get out again, maybe tomorrow but by the weekend for sure. I Hope to have the third set of flight packs and be able to get in 3 flights.

    nyampdude.com batts are working great. That flight was 7 minutes and put 5203 and 5258 ma back into the batts. During all the hover work for the same flight time I was replacing about 6000ma to each battery. Hovering takes a little more power but it all looks good. I will be able to fly this 30lb heli for around 10 minutes which will be more than enough.

    Butch





  19. #69
    Scale Heli Addict mkranitz's Avatar
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    RE: SCALE JET e-S76 build

    If you have flights lasting more than 4 hours contact your physician.
    Michael Kranitz

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  20. #70

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    RE: SCALE JET e-S76 build

    In my not so many years for Scale helicopter Modeling, rivets have always been a bit on the tough side. I have used the glue with the syringe, the stick on, but never tried the single glue on, ("single rivet at a time, that makes you cross-eyed because they are so small, that seems it would take an eternity, or longer, just to do one row, and how do you hold those little things and place them in just right position, and not get glue all over you fingers and keep everything looking good so sanding and prep work is not and angry session of modeling but something to look forward to" ) rivets.

    The S-76 only has round head type fasteners on the tail pylon, all other rivets are flush for that "Fast, Sleek, Smooth" look.

    On my Scale Jet 76 I chose to use the glue on rivets because there are not that many. It is a little time consuming and tedious but the look is right on. This is about an hour of work once the pattern was laid out.

    Have a look.

    Butch
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  21. #71
    Scale Heli Addict mkranitz's Avatar
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    RE: SCALE JET e-S76 build

    Riveting!

    Seriously, that is gonna look great after paint! Sandy finished my landing gear so once he returns them to me, I'm back in the air.

    How's the cockpit project coming along?
    Michael Kranitz

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  22. #72
    Scale Heli Addict mkranitz's Avatar
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    RE: SCALE JET e-S76 build

    Oh, did you see the "Departure" column (last page of the mag) in the Feb issue of FlyRC? Yeah, I mentioned you.

    More S-76 coming in the upcoming RC Heli Pilot magazine by the same folks!
    Michael Kranitz

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  23. #73

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    RE: SCALE JET e-S76 build

    Thanks,

    The rivets are coming out nice. I have started the light mounts as well. The IP is not moving along as fast as I would like. Something will to have to give very soon.

    I will have to look for it at the store for the mag.

    Butch


  24. #74

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    RE: SCALE JET e-S76 build

    UIH

    All the rivets are complete on the tail pylon. I have been making the antenna bases for the GPS, WAAS,, and XM weather/Radio. I used a Vario antenna for the ELT.

    I also made the light bases for the stab and tail gear box fairing. I threw in a pic of the full scale for comparison. Pretty close don't you think

    Here are some pictures.

    Butch
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  25. #75
    Scale Heli Addict mkranitz's Avatar
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    RE: SCALE JET e-S76 build

    I see a guy in line for an award! Great work on this Butch. Insane at every level!

    I ordered the large control stick set from Joe. I'm not going for your level of scale, so they should work out. If they are too big, I may be reaching out for dimensions!!

    I intend to use foam padding covered by knit fabric for the bulkhead. I'm also made the floor panels detachable (velcro for now) so I can get in and access the batteries if need be.

    I think I'll use the stock seats from Vario but install shortened versions of the legs that you designed (right now I have the seat propped up on a servo box).
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    Michael Kranitz

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