Register

If this is your first visit, please click the Sign Up now button to begin the process of creating your account so you can begin posting on our forums! The Sign Up process will only take up about a minute of two of your time.

Page 60 of 69 FirstFirst ... 10505859606162 ... LastLast
Results 1,476 to 1,500 of 1705

  1. #1476
    Jim Cattanach's Avatar
    Join Date
    Mar 2003
    Location
    Larnaca, , CYPRUS
    Posts
    2,037
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper

    ORIGINAL: Duncan

    I can see where you are coming from, but i wouldn't say most of the problems. There have been quite a few pilot/builders errors causing failures too and you can't expect the factory to take responsibility for someone old boy'ing it in.

    As for building, you would expect anyone putting a jet together to have learnt through years of modelling the way they like to do things, so it's not guessing, but using their years of experience to judge how they think it should be. To be able to decide where a servo should be may need a basic understanding of forces a model goes through in flight, but if someone hasn't got a basic understanding of the principles of flight, then should they be flying a jet or indeed any model in the first place?


    lol Alessandro, i'm still learning all the time mate, it never stops and i can get it wrong
    Yes, I agree with you, but the more idiot proof you make the kit, the better. My post was merely to comment that is odd for an ARF not to make provision for servos. On my first Viper build I placed the sevos in the fuz, mainly because I had no need to remove the rudder or stabs.
    I recently bought another & will start the build soon. I really like the large Viper. It flys very well & lands easily. I lost my first one when it hit some HT power lines.
    JET FLYING:- Resistance is futile. You will be assimilated.

  2. #1477
    Duncan's Avatar
    Join Date
    Oct 2008
    Location
    Coventry, Warwickshire, UNITED KINGDOM
    Posts
    1,310
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper


    ORIGINAL: OttoKranz

    I forgot to say that I also put a long piece of balsa, 5 mm thick, glued on the fin behind the rudder because the rudder didn't go to touch the fin and the hinges remained out of the fin for almost 5 mm.
    I think that nobody will understand what I said and I don't have pictures....

    Alessandro

    I understand what you mean, no need for pics the brass tube i hysol'd onto the hinges, did the same thing as the balse you used.

    Jascat,

    yep i agree i love my big viper, it's a lovely model and i'm quite tempted to get a 2m at some point. I had seen the video of your crash, it's never nice to see a model go in, no matter what the cause, glad you have a replacement all sorted

    Duncan
    Aero-creative - Vinyl Design & Application
    www.aero-creative.com

  3. #1478
    Jim Cattanach's Avatar
    Join Date
    Mar 2003
    Location
    Larnaca, , CYPRUS
    Posts
    2,037
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper

    Do you have a link to that video? I never saw it.
    JET FLYING:- Resistance is futile. You will be assimilated.

  4. #1479

    Join Date
    Dec 2008
    Location
    Roma, ITALY
    Posts
    103

    RE: Another Skymaster Viper


    ORIGINAL: Duncan

    I understand what you mean, no need for pics the brass tube i hysol'd onto the hinges, did the same thing as the balse you used.
    mmm... now I understand how and why you used the brass tube...

    A

  5. #1480

    Join Date
    Dec 2008
    Location
    Roma, ITALY
    Posts
    103

    RE: Another Skymaster Viper

    Jascat, I remember also about a friend of yours that lost the Viper at the maiden flight, isn't it? Did you discover the problem?

    Ciao
    A

  6. #1481
    Duncan's Avatar
    Join Date
    Oct 2008
    Location
    Coventry, Warwickshire, UNITED KINGDOM
    Posts
    1,310
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper

    I must have my wires crossed again, i thought you had posted a video of it. Was it of the 2m ?
    Aero-creative - Vinyl Design & Application
    www.aero-creative.com

  7. #1482

    Join Date
    Jul 2010
    Location
    Sachseln, SWITZERLAND
    Posts
    24

    RE: Another Skymaster Viper

    Hi Duncan

    Thanks for the pictures.
    i made some pictures of my fin and rudder. There are already 4 hinges inside, and it seems, they are already glued in into the rudder.
    Looks like robart, but isn't robart.
    Are your hinges glued in too and how did you removed them ?
    Another point is, the balsa block inside looks stable,.... but there is nearly no glue around
    I think i have to invest a lot of time to stabilize fin and rudder.

    attached some pictures

    Kind regards



    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Xv63663.jpg 
Views:	19 
Size:	182.9 KB 
ID:	1477348   Click image for larger version. 

Name:	Ql33159.jpg 
Views:	12 
Size:	181.4 KB 
ID:	1477349   Click image for larger version. 

Name:	Va71418.jpg 
Views:	14 
Size:	120.6 KB 
ID:	1477350  

  8. #1483

    Join Date
    Jul 2010
    Location
    Sachseln, SWITZERLAND
    Posts
    24

    RE: Another Skymaster Viper


    [quote]ORIGINAL: OttoKranz

    I think SM should pay you for all this e-learning lessons
    You are right again Duncan (it's becoming boring ah ah ah) I had to put two blocks of balsa inside the fin and two hard wood rod in the rudder. I think that now my two hinges are more solid than the three SM because, as you see from the pictures of Nicolò, the SM balsa blocks inside the fin are not so secure....[&:]

    Ciao
    A
    [/quote

    Hi Alessandro

    "..I had to put two blocks of balsa inside the fin and two hard wood rod in the rudder..."
    Sorry,.. but how did you do that ?Did you open/divide the fin and/or the rudder

    Kind regards
    Rainer


  9. #1484
    Jim Cattanach's Avatar
    Join Date
    Mar 2003
    Location
    Larnaca, , CYPRUS
    Posts
    2,037
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper


    ORIGINAL: OttoKranz

    Jascat, I remember also about a friend of yours that lost the Viper at the maiden flight, isn't it? Did you discover the problem?

    Ciao
    A
    Yes, Denny Rowland lost his on the maiden flight. I arrived at the site about ten minutes after the crash, so I don't really know the facts. He said he was turning upwind to land & it dropped a wing & went in. Others I spoke to thought he was going too slow & it stalled. They are not easy to stall, so he must have been flying really slow.

    Duncan. I found I preferred the large Viper over the small version, especially the landings (although the small one is fine). I lost the small one when one of the main gears refused to come down. I climbed high & tried a couple of loops to free the jammed gear. Unfortunately on the second loop, it snapped & went into a flatish spiral dive. No matter what I tried, I had no effect on the spin.
    Both Vipers were lost on the same day. Should have stayed at home that day.
    JET FLYING:- Resistance is futile. You will be assimilated.

  10. #1485
    Duncan's Avatar
    Join Date
    Oct 2008
    Location
    Coventry, Warwickshire, UNITED KINGDOM
    Posts
    1,310
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper

    Hi Rainer

    You are lucky in the fact that when i got my viper, it was up to the builder to fit the hinges in the rudder. Measuring how deep each hinge had to be sunk and getting it right, took a fair amount of time.

    The part of hinge that goes into the fin, is the part i hysol'd the brass tube onto. The brass supports the part of the hinge that is left in the open, giving strength to the unsupported area.

    Duncan
    Aero-creative - Vinyl Design & Application
    www.aero-creative.com

  11. #1486

    Join Date
    Jul 2010
    Location
    Sachseln, SWITZERLAND
    Posts
    24

    RE: Another Skymaster Viper

    Hi Duncan

    Yes,... they looks straight aligned if i move all to one side, but nobody knows what is behind

    In the meantime i read the User Manual and i found following recommendation:

    "...We recommend to mass balance each elevator with 45 grams of lead in the balance tabs...."

    Has anybody done that and how ?

    Kind regards
    Rainer


  12. #1487

    Join Date
    Dec 2001
    Location
    Miami, FL
    Posts
    32
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper

    The ViperΒ΄s Manual.... hmmm..... I think this paper booklet is useless... to build this plane the right way... I am building my viper, and everything that I read on that manual does not manke any sense... I have put all servos inside the surfaces on elevator goes inside the stab, not the way the manual says half in the fuselage and half in the stab, so as the rudder servo, it is no easy to do it right but it is a big advange, now surfaces become easily removable... on the inside talking about where the receiver goes, ecu etc... that all has to be reorganized and tables need to be made in order to put things on its place... Again, this plane is for the experienced modeler, arf....hmmmm that "Almost" part of the ARF meaning is faaaaaaaaaaaaaaaaaar away from being almost.... it is a FARF (Far Away Ready to Fly)
    just my opinion...

  13. #1488
    Duncan's Avatar
    Join Date
    Oct 2008
    Location
    Coventry, Warwickshire, UNITED KINGDOM
    Posts
    1,310
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper

    FART lol i like it !! The manual is useless but as you say it's for an experienced builder. Be carefull where you mount the radio as the cockpits won't fit if you're not careful with the installation.

    Rainer i don't know of anyone that mass balanced the elevators, so i didn't either
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Om33786.jpg 
Views:	23 
Size:	208.5 KB 
ID:	1477351   Click image for larger version. 

Name:	Av68475.jpg 
Views:	21 
Size:	264.0 KB 
ID:	1477352  
    Aero-creative - Vinyl Design & Application
    www.aero-creative.com

  14. #1489

    Join Date
    Jul 2010
    Location
    Sachseln, SWITZERLAND
    Posts
    24

    RE: Another Skymaster Viper

    Hi

    "... this plane is for experienced builders..."

    Yes,...i aggree. I have experience in building several models. But this is my first Jet
    Therefore i use my experience, not to believe everything in the manual, but read instead of in different forums to find out the weak points and optimize them, and if everything goes well, i will reduce the amount of problems later on

    Kind regards
    Rainer



  15. #1490

    Join Date
    Dec 2001
    Location
    Miami, FL
    Posts
    32
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper

    Duncan, Thanks for sharing with your pictures, I have a folder on my computer with avery picture that I have found on this forum, and they are super helpful! that folder is my manual... haha.... I am located in Panama, and no Vipers around the area... so even more complicated...

    Ramses; I am sure you will do great building this plane, it just needs more time than the regular ARF plane does... BTW I use to live in Switzerland years ago, in Lugano... use to fly Gliders from GRAUPNER... I am still tryng to find that GRAUPNER Glider I use to fly, it was called PILOT... made in late 80Β΄s... super good flyer!
    Hvae fun building your viper...

    Regards
    Tony

  16. #1491

    Join Date
    Dec 2008
    Location
    Roma, ITALY
    Posts
    103

    RE: Another Skymaster Viper


    ORIGINAL: RamsesCH
    Hi Alessandro

    ''..I had to put two blocks of balsa inside the fin and two hard wood rod in the rudder...''
    Sorry,.. but how did you do that ?Β*Did you open/divide the fin and/or the rudder

    Kind regards
    Rainer
    No, I've done square holes on the fin and round on the rudder. I installed balsa blocks in the fin until they reached the balsa "wall" inside the fin. I've done a scheme of it (it's better and faster ) but let me know if you need more informations.

    Ciao
    Alessandro
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Ec89837.jpg 
Views:	18 
Size:	58.7 KB 
ID:	1477372  

  17. #1492

    Join Date
    Nov 2009
    Location
    ROMA, ITALY
    Posts
    14
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper

    Hello RamsesCH

    I also had put the servant (jr8711) in the fuselage, I think it should be reasons why the empty part of the rudder in my opinion creates turbulence that caused my break ...
    Ciao Nico

  18. #1493

    Join Date
    Nov 2009
    Location
    ROMA, ITALY
    Posts
    14
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper

    Hello Duncan
    you're right, but I can not know that lousy job was done in a rudder that I sold closed, so I trust MS .......
    There are many years flying with the jet models, and I have fallen years ago for my mistakes, but now it is a stupid mistake constructive

    Ciao Nico

  19. #1494

    Join Date
    Nov 2009
    Location
    ROMA, ITALY
    Posts
    14
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper

    I apologize to all ... (you too Alessandro detto OTTOKRANZ) for my primitive English

  20. #1495

    Join Date
    Dec 2008
    Location
    Roma, ITALY
    Posts
    103

    RE: Another Skymaster Viper

    ORIGINAL: nicocarlucci

    I apologize to all ... (you too Alessandro detto OTTOKRANZ[img][/img]) for my primitive English[img][/img]
    I forgive you this time but improve yourself and don't copy from the translator online!

  21. #1496
    chrigui's Avatar
    Join Date
    Mar 2004
    Location
    ferrara, ITALY
    Posts
    1,487
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper

    qualcosa si muove!!!!
    www.jetflydemoteam.com

  22. #1497

    Join Date
    Nov 2009
    Location
    ROMA, ITALY
    Posts
    14
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper

    Ciao Christian
    Qualcosa sembra muoversi ma a mio parere è solo uno stratagemma per prendere tempo....
    appena ho buone nuove ti scrivo,per ora mandare il direzionale in Cina mi è costato altri 117 €

  23. #1498

    Join Date
    May 2004
    Location
    Weert, NETHERLANDS
    Posts
    359
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper

    Just to let you guys know, the first flight (finally ) went quite uneventful.

    Stock landing-gear and wing-tube. One gear-leg did not come in completely before the door shut, so I flew with gear down most of the flight.

    A bit of crosswind, but no problems. Stayed a bit high for the first flight though

    [youtube]http://www.youtube.com/watch?v=YAVRah5_Iuo[/youtube]

    Engine (p200sx) makes a lot of noise during acceleration, so maybe I'll have to experiment a bit with pipe/turbine distance.

    But in all, a nice flyer!

    Hans

  24. #1499
    Selleri's Avatar
    Join Date
    Jan 2003
    Location
    Keflavik, ICELAND
    Posts
    1,103
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Another Skymaster Viper

    Congrats Hans, they sure are nice birds, must be pretty ballistic with the 200!
    Sverrir G. - Icelandic Volcano Yeti

  25. #1500

    Join Date
    Dec 2008
    Location
    Roma, ITALY
    Posts
    103

    RE: Another Skymaster Viper

    Very very nice Hans! In HD the video is almost perfect. Perhaps the operator should improve a little bit himself

    Ciao
    Alessandro


Page 60 of 69 FirstFirst ... 10505859606162 ... LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT -6. The time now is 11:53 PM.

SEO by vBSEO 3.6.1 ©2011, Crawlability, Inc.