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  1. #1

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    All new Merlin M70XMBL

    Click image for larger version. 

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    http://www.jetsmunt.com/wp/m70xbl/

    Jets Munt have announced the new M70 XBL and will be showing it at JetPower for those lucky enough to be there.
    This engine is 70N thrust out of a case size 75mm dia and weight of only 600 grams

    This is all with Brushless starter motor and brushless pump.

    The overall size is slightly smaller than the Wren 44 and less weight but produces all that power!

    Yet again Gaspar produces something truly exceptional. I have put my name down for one!

    John
    John Wright

  2. #2
    marc s's Avatar
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    Interesting to read its fully programmable in thrust output so the users can dial in what they want - 30-70N

    marcs

  3. #3

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    Wow, 100g lighter than the K45 and 60% more thrust. I want one!

  4. #4
    Henke Torphammar's Avatar
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    Quote Originally Posted by marc s View Post
    Interesting to read its fully programmable in thrust output so the users can dial in what they want - 30-70N

    marcs
    Well, that's been doable for long, if not by rpm limit via the throttle stick

    How ever this is one of few engines that impress me with a huge leap from the competition. Been waiting for this a long time as the Wren 44 been the standard for too long in this can size.
    /Henke
    www.youtube.com/henke2
    Ready2fly - T45 Goshawk, Lambert Kolibri T35. Perfect if I want to do carrier training!

  5. #5
    mr_matt's Avatar
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    Is this the one that was initially presented (shown at shows) as a 45 N motor?
    Matt

  6. #6

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    Quote Originally Posted by mr_matt View Post
    Is this the one that was initially presented (shown at shows) as a 45 N motor?
    No this is entirely new. The M35 has not yet made it into prduction.

    John
    John Wright

  7. #7

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    Impressive specs! What about the price?

  8. #8
    DrScoles's Avatar
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    1600 euro, Very very cool! dial a turbine... I like it!

  9. #9

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    Thank you for sharing the information. these would make a perfect power plant for Small Skymaster A10. Exciting stuff.

    Behzad

  10. #10
    mr_matt's Avatar
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    Can anyone tell me what the typical tail pipe exit diameter would be for this turbine at full power?

    Inner pipe diameter I mean
    Matt

  11. #11

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    I assume it would be like P60 or P70 as it pushes the same amount of air to generate the trust.

    Behzad

  12. #12
    mr_matt's Avatar
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    Yes what might that be? I have never had a full bypass install with a turbine that small
    Matt

  13. #13
    rhklenke's Avatar
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    Quote Originally Posted by DUCMOZ View Post
    I assume it would be like P60 or P70 as it pushes the same amount of air to generate the trust.

    Behzad
    My guess is that the efflux velocity is much higher for the Merlin than a P60 or P70 and that's where it gets its thrust.

    Bob

  14. #14
    Henke Torphammar's Avatar
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    Quote Originally Posted by mr_matt View Post
    Yes what might that be? I have never had a full bypass install with a turbine that small
    I run a 46mm pipe on my Kolibri T50. That adds 0.5lb or push when testing static.(54N installed) Usually people uses too big pipes, such as 46mm for a P20.
    /Henke
    www.youtube.com/henke2
    Ready2fly - T45 Goshawk, Lambert Kolibri T35. Perfect if I want to do carrier training!

  15. #15
    roger.alli's Avatar
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    Man I wish I still owned my Aggressor. What a combo these would make ..

    Click image for larger version. 

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  16. #16
    mr_matt's Avatar
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    Quote Originally Posted by Henke Torphammar View Post
    I run a 46mm pipe on my Kolibri T50. That adds 0.5lb or push when testing static.(54N installed) Usually people uses too big pipes, such as 46mm for a P20.
    So Henke you would run a 46 mm ID pipe at full power with this motor? What kind of bellmouth? (No bypass this time).

    Does this turbine have the in-flight restart?
    Matt

  17. #17
    Gordon W's Avatar
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    Wren produce a series of nice pipes. Would the Wren 44 Gold pipe be OK, or should one go for the MW54/70/80/SS/100 size pipe for the M70XBL?

    There's a dimensioned diagram on Wren's website which everyone can download as a .pdf (link: https://drive.google.com/file/d/0B4u...NDdVA1MmM/view ) and which I'm copying here as a low definition jpg for a quick look:

    Click image for larger version. 

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    Maybe John Wright, who I understand had a hand in the design of these pipes, could advise us, please. In any case, you have the engine on order John, so what will you do for a pipe?

    Gordon
    Last edited by Gordon W; 09-15-2016 at 04:48 AM.

  18. #18

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    Quote Originally Posted by Gordon W View Post
    Wren produce a series of nice pipes. Would the Wren 44 Gold pipe be OK, or should one go for the MW54/70/80/SS/100 size pipe for the M70XBL?

    There's a dimensioned diagram on Wren's website which everyone can download as a .pdf (link: https://drive.google.com/file/d/0B4u...NDdVA1MmM/view ) and which I'm copying here as a low definition jpg for a quick look:

    Click image for larger version. 

Name:	Wren Tailpipe Dimensions.JPG 
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ID:	2181153

    Maybe John Wright, who I understand had a hand in the design of these pipes, could advise us, please. In any case, you have the engine on order John, so what will you do for a pipe?

    Gordon
    Gordon

    I will make my own pipe as I have the materials and a spot welder. I will probably opt for a size between the 44 and 54 maybe 65mm diameter instead of the 62mm and the rest sized accordingly.
    I am sure it would work fine with a 54 pipe but the 44 one may be a bit small.

    John
    John Wright

  19. #19
    Gordon W's Avatar
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    Thanks John. It'd be handy if Jets Munt could give us all some advice too, or maybe that'll be in the engine manual.

    Gordon

  20. #20

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    Quote Originally Posted by Jgwright View Post
    Click image for larger version. 

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    http://www.jetsmunt.com/wp/m70xbl/

    Jets Munt have announced the new M70 XBL and will be showing it at JetPower for those lucky enough to be there.
    This engine is 70N thrust out of a case size 75mm dia and weight of only 600 grams

    This is all with Brushless starter motor and brushless pump.

    The overall size is slightly smaller than the Wren 44 and less weight but produces all that power!

    Yet again Gaspar produces something truly exceptional. I have put my name down for one!

    John
    Price looks quite good too - but would have been REALLY good but for that wretched referendum!

  21. #21
    jason's Avatar
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    That would make a nice turboprop...

  22. #22
    patrnflyr's Avatar
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    Will Ultimate Jets carry this turbine in the USA?

  23. #23

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    Probably will be Dreamworks.

  24. #24

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  25. #25

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    Time to dig my Grummania Su27 out of the roof, would be incredible with one of these fitted. I think Vaclav at Savex will also become busy with his L39 sales!!


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