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TBM Shock Jet

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Old 12-10-2010, 02:09 PM
  #976
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Default RE: TBM Shock Jet


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ORIGINAL: limeybob


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ORIGINAL: jblloyd

I just had a friend tell me that he called TBM to order a ShockJet and was told that they have been discontinued and TBM would no longer be selling them ... bummer!!
Well, If you don't mind building, there is always the Jetmach 60
Bob
Bob, I got a JetMach Super Sport kit for Christmas last year and am still building it. I bought the SJ as an interim measure tokeep somethingin the air until the SSis finished.Although I have grown to love my SJ, I am really looking forward flying the JetMach. Great Kit ...
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Old 12-10-2010, 04:08 PM
  #977
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ORIGINAL: john4648

Limeybob,

I have one of your Jetmach60's it is a wonderful flyer! and will come out of a spin . Problem is for a lot of folks is construction. Most just do not have time, space or the skills perhaps to construct the Jetmach. I have looked and looked at your Super sport. Would really like to have one - - - - built . Would purchase it in ARF form if it were to come that way. Have several boomerang style jets but sure get tired of putting the plane togther each time I fly. The booms, outer wing panels, horizontal stab, and all the leads.... gets old. Could get a trailer and leave it all together but covenants will not allow for parking/storing a trailer.
If you could just get your line going in ARF form...I would be pretty happy! Others might too?
There is folks out here that will build for ya if your willing to wait for it!!!
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Old 12-10-2010, 05:10 PM
  #978
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Default RE: TBM Shock Jet

I just talked to Gerry Hinshaw last Saturday at the SMRCC Swap meet. He said they will soon be offering the Shockjet in both "Blue Angel" and "Thunderbird" schemes. Perhaps Gerry is the one to contact regarding this offer. He may personally be the new distributer or connected with a new distributer.
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Old 12-10-2010, 05:17 PM
  #979
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Default RE: TBM Shock Jet

. . . the plot thickens.

That would jive with what he told me a couple months ago regarding the colors.
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Old 12-12-2010, 01:05 PM
  #980
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Default RE: TBM Shock Jet

I sent Gerry an e-mail at his troybuiltmodels e-mail address and it bounced back as "no longer valid". I guess it must be true that they let a bunch of their staff go.
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Old 12-13-2010, 06:27 AM
  #981
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Default RE: TBM Shock Jet

I received the following response this morning from Mike D. to the email I had sent to Gerry. Make of it what you will. It might be fun to speculate as to what the design changes would be:

Sorry, no longer available.

Perhaps we may re-introduce theShockJet later in 2011 with some design changes.

Gerry no longer works for TBM.

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Old 12-13-2010, 06:36 AM
  #982
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Default RE: TBM Shock Jet

well it could do with bigger tail surfaces and a wing tube.
Bob
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Old 12-13-2010, 07:15 AM
  #983
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Default RE: TBM Shock Jet

Think Gerry might be working on something ....will let him expound though ...
John
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Old 12-13-2010, 02:41 PM
  #984
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Default RE: TBM Shock Jet

The only way you will ever get a compairable jet related to a Shok Jet for under $500 stateside anymore will be to build one. E.I. The Jet mach line.
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Old 12-13-2010, 03:51 PM
  #985
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Default RE: TBM Shock Jet

How about it, Bob. It was stolen from you in the first place, so who better than you to put it right. Keep the JetMach as a kit, sell the ShockJet as an arf. You might have to change the name, but what the hell, those of us that matter will know. And by the way Bob, I haven't given up on my EuroMach, I'm just looking for a more suitable field for it's longer approach.
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Old 12-13-2010, 06:05 PM
  #986
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Default RE: TBM Shock Jet

Thanks for the vote of confidence, I have wanted to do ARF's for a long time, but do not want to deal with China. I spent quite a lot of time in China (consumer electronics) in the 90's
Maybe TBM will come back?
bob
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Old 12-13-2010, 06:21 PM
  #987
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Default RE: TBM Shock Jet

Guys, For the ones thats never done it, you gotta learn the value and deep satisfaction thats involved with building your own balsa/ply- kit/plane and seeing it roll down the runway. fly at your precise command. Line up with the runway and set down without a bunce and know that you did it ALL. From plans to covering. Sure. have your ARF's. I have a few myself but clean off a table in the corner and even if it's just glueing a Pc or two a week. Try it. Roy
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Old 12-14-2010, 01:20 PM
  #988
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Default RE: TBM Shock Jet

Gerry Hinshaw's new company is: Giant Model Products (GMP). He is the new distributer for the ShockJet. His new website is: Giantmodelproducts.com
He said they are expecting a container on Dec. 20 with all the new stuff.
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Old 12-14-2010, 03:12 PM
  #989
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Default RE: TBM Shock Jet

Cool - thanks for the info.
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Old 12-19-2010, 02:11 PM
  #990
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Default RE: TBM Shock Jet

OK Guys, here is a somewhat dumb question. My shockjet is just about complete. The only thing I am missing is the weather. With regards to the flaps, how do I keep the servos from making a buzzing noise when position in the up position? Is this normal? Is anyone else experiencing this noise? The servos I am using are Hitec HS-645MG at 6v.

Sincerely

Ken
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Old 12-19-2010, 02:16 PM
  #991
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Default RE: TBM Shock Jet

Digital servos will always make some buzzing, but you don't want it to be binding. If it is, you have to adjust the travel end points.
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Old 12-19-2010, 02:18 PM
  #992
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Default RE: TBM Shock Jet

Yep-Mine do it. Just put it completly out of your mind. Just be sure you don't have them in a bind in the up pos. The 645 is a good servo. I use them and my bunch of 605's for a lot of planes here. On must jets like the shock jet, the flap servo will get the most work-out.
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Old 12-19-2010, 02:23 PM
  #993
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Default RE: TBM Shock Jet

No No Binding, I believe it is just the weight of the big flap...Ken
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Old 12-19-2010, 02:28 PM
  #994
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Default RE: TBM Shock Jet

Use the Hanger 9 "Digital Servo & Receiver Current Meter" http://www.hangar-9.com/Products/Def...?ProdID=HAN172 tells you how much current the servos are pulling. If not much more than the at rest current of the servo with no linkage attached I let it go. If the servo is being loaded as indicated by the current draw I investigate and correct. Holding the flaps up against natures gravity will need a little current but if pulling several times more than the unloaded current than there is a binding issue along with gravity. Using the current meter a few times and rapidly you will acquire an understanding of what is workable and what is not. Hope this is helpful.
Happy Holidays
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Old 12-19-2010, 02:29 PM
  #995
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Default RE: TBM Shock Jet

hello guys, my plane came with all control surfaces CA hinged and ready, and i have been flying it for that now, but dont feel that safe. did any of you changed to pin hinges?
KAON
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Old 12-19-2010, 02:32 PM
  #996
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Default RE: TBM Shock Jet

I just re-read your post. Is the 645 an analog servo? If so, they don't normally whine as much as the digitals.
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Old 12-19-2010, 02:34 PM
  #997
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Default RE: TBM Shock Jet


Quote:
ORIGINAL: KAON

hello guys, my plane came with all control surfaces CA hinged and ready, and i have been flying it for that now, but dont feel that safe. did any of you changed to pin hinges?
KAON
If installed properly, CA hinges are just fine.

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Old 12-19-2010, 02:37 PM
  #998
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Default RE: TBM Shock Jet

Thanks Guys, Yes the 645MG is an analog servo.

Cheers

Ken
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Old 12-19-2010, 02:47 PM
  #999
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Default RE: TBM Shock Jet

That gizmo John posted looks handy. That will definitely tell you if its binding as the current draw does go up as he said.
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Old 12-19-2010, 03:06 PM
  #1000
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Default RE: TBM Shock Jet

Both of my SJ's have hs645 flap servos and both make a bit of noise at times in the "up" position. They also both have the original factory-installed CA hinges. None of this seems to be a problem at all. I too thought about going to Robart-type hinges, but to be truly effective, they require a fair depth of wood to drill the hole into for them. I doubt the SJ's hinge spars are that thick. Just keep a close eye on the hinges along with everything else, and I think you'll find them to be fine. As far as the flap servos, the comment about adjusting the end-points carefully should be taken as gospel. If they end up slightly down from the ideal up position, it won't hurt, and you'll never notice anyway. A binding servo, on the other hand, could be fatal due to it's draining of the battery far sooner than you expect. No offense, but I've noticed that a lot of guys seem to be over-thinking this airplane. My first SJ was my first jet. I put it together exactly according to the instructions, used all of the servos they called for and ended up with a fun, reliable jet that requires little more than fuel, charged batteries and a pilot willing to do his (my) part. Best $500 bucks I ever spent.
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