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  1. K

    Wow man, love that you're doing the verhees delta, wish you were closer to me I'd give you a hand!

    Wow man, love that you're doing the verhees delta, wish you were closer to me I'd give you a hand!
  2. K

    My next big project since used JT15D's are starting to look "reasonably" priced.

    Yea swampy, your correct on the symbol nomenclature, its been a little while :) But most of the work I did on the initial concept are changing. The costs/size/complexity were ballooning a little out of control so I'm going back to the drawing board so to speak. In the meantime I've just been...
  3. K

    My next big project since used JT15D's are starting to look "reasonably" priced.

    Thanks for that link pictsidhe, that is a pretty nifty piece of software, how accurate would you say it is? I suppose the calculations are based off of known data points.
  4. K

    Hey, I was just wondering how your research into low aspect ratio deltas was coming along. In my...

    Hey, I was just wondering how your research into low aspect ratio deltas was coming along. In my simulations I tend to have a pretty hard time maintaining high cruise while trying to lower stall speed within acceptable AoA
  5. K

    Hey there Rocketboy, I saw that you were an engineer at P&W and a member of a group that is...

    Hey there Rocketboy, I saw that you were an engineer at P&W and a member of a group that is working on a ducted fan design, I was wondering how does one gain access to the group. I would love to see how the process works and some of the work that goes into a project like that.
  6. K

    Hey there, I was just wondering how your ducted fan design was coming along?

    Hey there, I was just wondering how your ducted fan design was coming along?
  7. K

    Dude, how is the Scale F-16 Progressing?

    Dude, how is the Scale F-16 Progressing?
  8. K

    Thats great man, wondering, so you're doing a metal build not so much with the composites? Also...

    Thats great man, wondering, so you're doing a metal build not so much with the composites? Also have you done any work with your inlet/duct/fan design? I was looking for some resources for design of those pieces.
  9. K

    My next big project since used JT15D's are starting to look "reasonably" priced.

    Was the 450hp not enough power for the fan or did the T-58s benefits out weigh the cons of the 20B? Also how do you calculate the power needed to spin a given fan at certain rpms/altitudes/airspeeds been trying to find the answer to that one for a couple days. Just want to made some baseline...
  10. K

    Hey man, I was just wondering how your project was coming along? Built any scale mockups or...

    Hey man, I was just wondering how your project was coming along? Built any scale mockups or anything?
  11. K

    My next big project since used JT15D's are starting to look "reasonably" priced.

    Well I have spent a couple weeks going through the rest of the Conceptual design. It's far enough along that I wanted to show it to a couple engineers I know and they confirmed what I was seeing too. Weight/size/complexity were ballooning a bit out of control. So.... yea its a little beyond what...
  12. K

    NACA 66-021 and 16-018....

    I believe this design used the NACA 66-018 for its airfoil http://www.geversaircraft.com/
  13. K

    My next big project since used JT15D's are starting to look "reasonably" priced.

    Ahh thank you, I thought as much as well, but I was under the guidance that leading edge slats would help with smoothing turbulent airflow at lower speeds as long as the alpha isn't too high. Do you have any suggestions as to where I can learn more about that? Great material for me to go over...
  14. K

    My next big project since used JT15D's are starting to look "reasonably" priced.

    I dont understand.... a pirate? But yea, If by the time I'm finished with the conceptual design if it still looks like its within the realm of possibility I'll be handing it to a professional to tune it.
  15. K

    My next big project since used JT15D's are starting to look "reasonably" priced.

    No I'm not expecting financing. Its a RPF to myself. To establish mission objectives to guide the conceptual design process. And yes 3500 hours on the airframe/engine. By Operational life it doesn't mean not expecting to replace anything until that time. Its means the airframe will remain...
  16. K

    My next big project since used JT15D's are starting to look "reasonably" priced.

    I think you must be mistaking it with a different engine, the SFC is around 0.562 lb/(lbf·h) or a little higher at max depending on model, and a little better at cruise. Thrust isn't that high, 2100lbs-3000lbs or thereabouts, depending on model. Anyways, little update, I've finished the...
  17. K

    Homebuilt Control Tower

    Finally something I can speak with a little bit of authority on! In the US at least if you believe you will be hosting an event that will be busy and or complex enough to pose a significant risk to the NAS you should contact your local FSDO or speak to the ATM of the facility that the...
  18. K

    My next big project since used JT15D's are starting to look "reasonably" priced.

    Hahahaha, you caught me! But its not really a "scale" anything, I was just using a scale 75% *approx Mirage 2000B in SU just to be a digital concept drawing, just something to start from. I would like planform as close to that original as I can make it but I imagine once all the concessions in...
  19. K

    My next big project since used JT15D's are starting to look "reasonably" priced.

    Thank you sir, that is exactly the kind of response I wanted to hear, I'll go ahead and order the simplified book as well and do what you suggested with the side by side comparisons. You sound like you've done this before :)
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