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 1 of 2 12 LastLast
Results 1 to 25 of 30

  1. #1
    P. Richards's Avatar
    Join Date
    May 2002
    Location
    Las Vegas
    Posts
    894
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    Two 1/4 scale Scratch built T-38's

    Both of these jets were damaged and hopefully we will see them fly again...

    http://youtu.be/pdHCGUxS9mA

    P. Richards aka SwatTeam

  2. #2
    Dr Honda's Avatar
    Join Date
    Apr 2005
    Location
    Latrobe, PA
    Posts
    2,022
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    Thanks for the vid.

    Did you get the story on what happened? Looks like he forced the landing, and just ran out of room.
    Tony
    Owner of A&L Motorsports, LLC

  3. #3
    erbroens's Avatar
    Join Date
    Nov 2003
    Location
    Curitiba, Parana, BRAZIL
    Posts
    3,830
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    Nice planes, and certainly easy repairable.. thanks for the videos and this is why flying in a full size airport with hundreds of yards to spare on both headings is so relaxing!

  4. #4

    Join Date
    Jan 2002
    Location
    Bennington, NE
    Posts
    5,289
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    nicce jets, definetly underpowered. Would love to seea build thread on those jets

  5. #5

    Join Date
    Mar 2002
    Location
    Colorado Springs, CO
    Posts
    627
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's


    ORIGINAL: Dr Honda

    Thanks for the vid.

    Did you get the story on what happened? Looks like he forced the landing, and just ran out of room.
    Reports are that the one that went into the swamp (Andy's) had a Low Voltage Cutoff - bad place, bad time
    The second (Brent's) had a speed control go out (again in a bad place at a bad time) so he had to force the landing.

    Greg

  6. #6

    Join Date
    Mar 2002
    Location
    Colorado Springs, CO
    Posts
    627
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    ORIGINAL: Ram-bro

    nicce jets, definetly underpowered. Would love to seea build thread on those jets
    Underpowered? I don't think so.... just not overpowered like most of our models. In fact they are close to scale (without afterburner) T/W.
    Long thread on RCGroups in the scratch-build forum.

    Greg

  7. #7

    Join Date
    Dec 2001
    Location
    Oxford, MS
    Posts
    3,235
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's


    ORIGINAL: jetflyr

    ORIGINAL: Ram-bro

    nicce jets, definetly underpowered. Would love to seea build thread on those jets
    Underpowered? I don't think so.... just not overpowered like most of our models. In fact they are close to scale (without afterburner) T/W.
    Long thread on RCGroups in the scratch-build forum.

    Greg
    Greg Greg Greg, you forget that all of these newbies are experts after their first flights.....

  8. #8
    Dustflyer's Avatar
    Join Date
    Dec 2001
    Location
    Abington, PA
    Posts
    899
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    What incredibly gorgeous model jets! The first one, 904, was definitely not underpowered. Amazingly, it sounded just like a turbine.

    The stall characteristic of a full sized T-38 is essentially a mush, not a pitch over or wing drop. That is exactly what happened, the airplane simply mushed into the ground. But why would that happen with an experienced RC jet flyer on the sticks? Something else must have been in play. There appeared to be no attempt at a go around. That would indicate, to me, that there must have been a power failure of some kind. Either that, or the batteries simply were out of juice.

    The T-38 is one of the most beautiful jets in the world. The real one is a serious hot rod that has killed its share of students. At low speed, as you might suspect with that tiny wing, it is not very forgiving. The final turn is flown not only with an eye on airspeed but also with the assistance of an angle of attack indicator light mounted atop the glareshield called the "donut." AOA has to maintained in a very precise range. If you are right on the money, you get a green donut; if not, you get a chevron either above or below the donut telling you which way to adjust your AOA

    It's demanding enough flying a real one, but flying a 1/4 scale model of a T-38 without an airspeed or AOA indicator has to be incredibly difficult. I sure hope those guys can get their birds patched up and get through the learning curve on those beautiful machines so the modeling world gets to see them fly once again.



    I love the smell of jet fumes in the morning!

  9. #9

    Join Date
    Mar 2002
    Location
    Colorado Springs, CO
    Posts
    627
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's


    ORIGINAL: DavidR


    ORIGINAL: jetflyr

    ORIGINAL: Ram-bro

    nicce jets, definetly underpowered. Would love to seea build thread on those jets
    Underpowered? I don't think so.... just not overpowered like most of our models. In fact they are close to scale (without afterburner) T/W.
    Long thread on RCGroups in the scratch-build forum.

    Greg
    Greg Greg Greg, you forget that all of these newbies are experts after their first flights.....
    Oh Crap! What was I thinking![8D]
    Greg

  10. #10

    Join Date
    Mar 2002
    Location
    Colorado Springs, CO
    Posts
    627
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's


    ORIGINAL: Dustflyer

    What incredibly gorgeous model jets! The first one, 904, was definitely not underpowered. Amazingly, it sounded just like a turbine.

    The stall characteristic of a full sized T-38 is essentially a mush, not a pitch over or wing drop. That is exactly what happened, the airplane simply mushed into the ground. But why would that happen with an experienced RC jet flyer on the sticks? Something else must have been in play. There appeared to be no attempt at a go around. That would indicate, to me, that there must have been a power failure of some kind. Either that, or the batteries simply were out of juice.
    904 became a glider on turning base -low voltage cut off (see my post above)
    for LOTS of info on the build, and flying - as well as several videos go to:
    http://www.rcgroups.com/forums/showthread.php?t=1559834

    Greg

  11. #11

    Join Date
    Jul 2003
    Location
    Brisbane, QLD, AUSTRALIA
    Posts
    2,477
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    ORIGINAL: Ram-bro

    nicce jets, definetly underpowered. Would love to seea build thread on those jets
    Here you go..

    http://www.rcgroups.com/forums/showthread.php?t=1559834

    I thought that they looked to be flying at a scale speed..

    Doh! Jetflyer just beat me to the link

    Thanks

    dave

  12. #12

    Join Date
    Jan 2002
    Location
    Bennington, NE
    Posts
    5,289
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    Wow, I aam a newbie now....thats a good one but say what you must. When I say underpoweere, I am not looking for a jet to go vertical on takeoff but there definiietly needs to be enough power to power out of situations. I fly a Byron T33 on a ram 750 and it flies scale but has enough push to keep it lively. I have seen the fullsize fly for most of my life ( air force brat and military service) and those takeoffs as slow as they were did not seem scale to me....just my opinion. I salute the builder and designer .....

  13. #13
    Dustflyer's Avatar
    Join Date
    Dec 2001
    Location
    Abington, PA
    Posts
    899
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's


    ORIGINAL: jetflyr


    ORIGINAL: Dustflyer

    What incredibly gorgeous model jets! The first one, 904, was definitely not underpowered. Amazingly, it sounded just like a turbine.

    The stall characteristic of a full sized T-38 is essentially a mush, not a pitch over or wing drop. That is exactly what happened, the airplane simply mushed into the ground. But why would that happen with an experienced RC jet flyer on the sticks? Something else must have been in play. There appeared to be no attempt at a go around. That would indicate, to me, that there must have been a power failure of some kind. Either that, or the batteries simply were out of juice.
    904 became a glider on turning base -low voltage cut off (see my post above)
    for LOTS of info on the build, and flying - as well as several videos go to:
    http://www.rcgroups.com/forums/showthread.php?t=1559834

    Greg
    That would sure explain it. What a bummer. The guy flew it well.
    I love the smell of jet fumes in the morning!

  14. #14

    Join Date
    Aug 2002
    Location
    Mason, OH
    Posts
    732
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    Wow.... I can't believe people say these aircraft are not underpowered. 1/4 scale at 130mph when the full size has a top speed of 850mph. I respect the builders and the project they are doing but the airplanes look like they are one turn away from falling out of the sky. If that's scale flying, you can keep it. I would much rather have the power to rumble through big manuvers.
    Cincinnati Jet Club

  15. #15

    Join Date
    Feb 2002
    Location
    Spring, TX
    Posts
    922
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    Great job on scratch building guys. Almost nobody does it anymore. I would like to see the electric catch up to the turbine in duration but love those T38's. My skymaster is a joy to fly

    Good luck on the repairs and next test hops. 1/4 scale is awesome size.
    Kevin Thoele
    Texas Jets Group

  16. #16

    Join Date
    Jun 2004
    Location
    ReutIsrael, ISRAEL
    Posts
    3,094
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's


    ORIGINAL: Joe Westrich

    Wow.... I can't believe people say these aircraft are not underpowered. 1/4 scale at 130mph when the full size has a top speed of 850mph. I respect the builders and the project they are doing but the airplanes look like they are one turn away from falling out of the sky. If that's scale flying, you can keep it. I would much rather have the power to rumble through big manuvers.
    +1
    www.liorzahavi.com
    www.youtube.com/i3dm

  17. #17

    Join Date
    Aug 2007
    Location
    Bay Area, CA
    Posts
    3,564
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    ORIGINAL: Joe Westrich

    Wow.... I can't believe people say these aircraft are not underpowered. 1/4 scale at 130mph when the full size has a top speed of 850mph. I respect the builders and the project they are doing but the airplanes look like they are one turn away from falling out of the sky. If that's scale flying, you can keep it. I would much rather have the power to rumble through big manuvers.
    +1 about the planes looking underpowered, especially in turns and when going into a vertical.

    With that said, the models themselves looked amazing. Hats off to the builders.
    Team Elite Aerosport

  18. #18

    Join Date
    Feb 2006
    Location
    , CA
    Posts
    228
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    Hey guys, Let's get one of them repaired and use the fuse as a plug to make a mold. We can make a couple of glass fuses just as light if not lighter than the versions that you produced using the foam...and we can make them faster and easier too in case there's another mishap. Would love to talk to you about that. Are either of you going to Best in the West? If so, look me up.

    KennyMac

  19. #19

    Join Date
    Dec 2001
    Location
    mia, FL
    Posts
    2,256
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    I think this T-38 is over powered

    http://www.youtube.com/watch?v=LWu0XC-a7QQ
    It's a hobby - keep it simple

    www.332ndredtail.com

  20. #20

    Join Date
    Jan 2002
    Location
    Killen, AL
    Posts
    3,213
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    Beautiful planes, and a beautiful job building/designing them. I had a friend who died in one a few years ago. He would loved to have seen them fly. Great video as usual.

  21. #21
    Bob_B's Avatar
    Join Date
    Nov 2003
    Location
    , KY
    Posts
    2,746
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    NOW that is what I call going vertical!!
    Cincinnati Jet Club, Team Futaba, Esprit Models

  22. #22

    Join Date
    Aug 2002
    Location
    Mason, OH
    Posts
    732
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's


    ORIGINAL: basimpsn

    I think this T-38 is over powered

    http://www.youtube.com/watch?v=LWu0XC-a7QQ
    Now that's what I'm talking about!!

    I am questioning myself on why I don't have one of these alread.....
    Cincinnati Jet Club

  23. #23

    Join Date
    Aug 2002
    Location
    Mason, OH
    Posts
    732
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's


    ORIGINAL: basimpsn

    I think this T-38 is over powered

    http://www.youtube.com/watch?v=LWu0XC-a7QQ

    Yeah, but its NASA flying that one. I think they are required to go vertical on takeoff......
    Cincinnati Jet Club

  24. #24

    Join Date
    Dec 2001
    Location
    mia, FL
    Posts
    2,256
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    ORIGINAL: Joe Westrich


    ORIGINAL: basimpsn

    I think this T-38 is over powered

    http://www.youtube.com/watch?v=LWu0XC-a7QQ
    Now that's what I'm talking about!!

    I am questioning myself on why I don't have one of these alread.....
    I was thinking the same thing
    It's a hobby - keep it simple

    www.332ndredtail.com

  25. #25

    Join Date
    Jan 2002
    Location
    Bennington, NE
    Posts
    5,289
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: Two 1/4 scale Scratch built T-38's

    glad to see that I am not the only who thinks these planes could use a lil more push. One of the problems could be it is just to light for its size and lacks a little inertia.


Page 1 of 2 12 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 03:04 AM.

SEO by vBSEO 3.6.1 ©2011, Crawlability, Inc.