CTI Cesaroni Technology

Discussion in 'Vendor Display' started by GaryT, Apr 30, 2012.

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  1. Oct 1, 2015 #1,321

    TRFfan

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    Same...;)
     
  2. Oct 1, 2015 #1,322

    alex_car763

    alex_car763

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    Would dual thrust motors incorporating mellow be a possibility?
     
  3. Oct 1, 2015 #1,323

    blackbrandt

    blackbrandt

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    Now my question is how absurdly FAST can you burn propellant in a CTI case.... something comparable to Warp-9. I know there's Vmax, but I'd love to see something faster. :)
     
  4. Oct 1, 2015 #1,324

    tbonerocketeer

    tbonerocketeer

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    Why? Vmax and warp 9 are already really fast burns and super slow sellers
     
  5. Oct 1, 2015 #1,325

    nh4clo4

    nh4clo4

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    Vmax in a star or Finocyl grain configuration could achieve that. It would be limited to short motors and would probably have low volumetric loading.

    Here is an (old) example of a super fast motor. Yes, it does say F675 !

    WHY CAN'T I LOAD PICTURES ?:rant:
     
  6. Oct 1, 2015 #1,326

    blackbrandt

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    Go advanced>manage attachments>upload files>insert inline>done.
     
  7. Oct 1, 2015 #1,327

    nh4clo4

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  8. Oct 1, 2015 #1,328

    Charles_McG

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    Does it go 'bang' instead of 'woosh'?
     
  9. Oct 1, 2015 #1,329

    TRFfan

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  10. Oct 1, 2015 #1,330

    COrocket

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    I'd like to see a high thrust 75-1G reload. Maybe white thunder or C*. Would be good for flying 4" fiberglass rockets at sod farms or confined launch areas.
     
  11. Oct 2, 2015 #1,331

    T34zac

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    If wish lists is a thing, than if like more C* in the 54mm cases. But my number 1 item, the J94 with 4-8 less Ns so it can be an I instead of J (yes I am L2).
     
  12. Oct 2, 2015 #1,332

    SCrocketfan

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    On the subject of wish lists, any chance a 29mm 6XL mellow or blue is possible?

    On a slightly different note, any chance someone can explain the difference between the I216 and J285 that causes the longer burn and lower impulse on the I216? Just wondering as they appear to have the same propellent weight. I have an I216 I'll be flying in a few weeks, can't wait!
     
  13. Oct 2, 2015 #1,333

    Donaldsrockets

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    If I had to guess, the reason would probably be nozzle size.

    The I216 might have a larger nozzle compared to the J285 even though the propellant weights of the 2 motors are the same. That would probably explain the lower impulse and longer burn time.
     
  14. Oct 2, 2015 #1,334

    rharshberger

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    If I had to guess another technical hurdle for a 29mm 6grainXL Mellow would excessive motor case heating.
     
  15. Oct 2, 2015 #1,335

    3stoogesrocketry

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    I was gonna say, the J nozzle is slightly tighter , barely pushing the motor into the level 2 cert category.

    Eric
     
  16. Oct 2, 2015 #1,336

    T34zac

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    The CTI Classic propellant seems to have a lot of different burn times. Sometimes it's quick, sometimes it's slow, and sometimes it's right in be middle. My guess is that while yes, they are both classic in the same case, they are probably two different versions of the classic propellant. If you look at the C* propellant in the 75mm lineup, you'll notice that there is C* (fast) and C* (slow), my guess is that's the same thing happening here.
     
  17. Oct 2, 2015 #1,337

    SCrocketfan

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    Thanks all for the replies! Very interesting.
     
  18. Oct 2, 2015 #1,338

    Len B

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    I am still dreaming of a VERY long 54mm motor. Like the old Kosdon L3000. I still have a rocket waiting for such a beast.
     
  19. Oct 2, 2015 #1,339

    T34zac

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    I know it's not CTI, but take a look at the Loki L2050. It's a 4' long 54mm 80% L
     
  20. Oct 2, 2015 #1,340

    Len B

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    That is definitely an attractive motor. Loki is not sold in Canada though. Also, that would require another hardware purchase if I were to fly in the US. It's not out of the question but hard to justify.
     
  21. Oct 2, 2015 #1,341

    T34zac

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    Yeah that is the downside, extra hardware. On top of that, it's also almost the cost of an L3. Definitely more than I'd like to spend on L2, but also a motor I want to put in the smallest possible rocket.
     
  22. Oct 3, 2015 #1,342

    Len B

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    I have a ShadowAero Shock Value that was made long enough for the Kosdon L3000. It's made for a motor like that.
    Hmmm. I should run the sim. :)
     
  23. Oct 3, 2015 #1,343

    KenRico

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    We are doing a Funk Saucer drag race at Tripoli Las Vegas Oktoberfest in a couple of weeks with I55-MY .

    Will hopefully have some good pics and video to share .. 6 fliers so far for 7.2 seconds of Saucer terror at dusk..

    Kenny
     
  24. Oct 3, 2015 #1,344

    nh4clo4

    nh4clo4

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    In that case, please see posts #1241 and #1243 ;)

    :marshmallow:
     
  25. Oct 6, 2015 #1,345

    watermelonman

    watermelonman

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    Seriously? I have no reason to doubt a man with real numbers, but given what I see in the field I am definitely surprised.
     
  26. Oct 6, 2015 #1,346

    RKeller

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    not sure if it's in here already but a nose cone for thin wall 29mm would be nice...
     
  27. Oct 6, 2015 #1,347

    tbonerocketeer

    tbonerocketeer

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    I'm not saying they don't sell, but compared to everything else, they trickle. Maybe it is different in other parts of the country too, though I don't remember seeing a bunch at airfest either.
     
  28. Oct 6, 2015 #1,348

    T34zac

    T34zac

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    I don't see many vmax flights posted here on the forum. However, with the clubs I fly with, vmax is popular for lifting heavy rockets inexpensively.
     
  29. Oct 6, 2015 #1,349

    tbonerocketeer

    tbonerocketeer

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    But are you talking 2% of flights in your club or 20%?
     
  30. Oct 6, 2015 #1,350

    T34zac

    T34zac

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    I've never done the numbers but for high power flights there is a good portion. Maybe 10-15%
     

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