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 2 of 14 FirstFirst 123412 ... LastLast
Results 26 to 50 of 348

  1. #26

    Join Date
    Mar 2004
    Location
    Aix en Provence, FRANCE
    Posts
    1,288
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: New CGRCjets super scale A-10

    Would this larger airframe still be suitable for twin wren44 gold?

  2. #27
    cgrcjet's Avatar
    Join Date
    Jul 2007
    Location
    paso robles, CA
    Posts
    632

    RE: New CGRCjets super scale A-10


    ORIGINAL: PTERODACTYL

    I would like to see you make it β€œlighter.” I live at 7200 feet above sea level. A RC plane with a 6 foot wing span, a 12 inch wing cord at a weight of 25 lbs has a wing loading of 66 ozs per square foot, β€œthat’s over four pounds per square foot”. I’m afraid to say this but it would need around 80+ mph to get off the ground and 60 mph to land. I build heavy too but I would shoot for 13lbs ready to fly [electric] minus the bombs and rockets and I would pull my hair out trying to keep it under 15lbs. This would slow it down for landing, shorten its take off run and give it much more vertical performance with a wider flight envelope.

    At fifteen pounds with a 12 inch cord and six foot wing span the wing loading would be 40 ozs per sqft.

    β€œMuch better.”[8D]
    13" cord 75" wingspan. I can always lighten the airframe but its all dependent on your power system. The twin power system can add quite a bit of weight to the airframe. What power system were you thinking?

    Chris

    WWW.CGRCJets.com

  3. #28
    cgrcjet's Avatar
    Join Date
    Jul 2007
    Location
    paso robles, CA
    Posts
    632

    RE: New CGRCjets super scale A-10


    ORIGINAL: Yann

    Would this larger airframe still be suitable for twin wren44 gold?
    Hi Yann

    Wren 44 gold would still be the ideal size turbine for this airframe. Although its a bit early to get the actual weight I dont think it will be a big difference. I do like my airframes a little more on the sound side but I will adjust accordingly.


    chris
    WWW.CGRCJets.com

  4. #29

    Join Date
    Mar 2004
    Location
    Aix en Provence, FRANCE
    Posts
    1,288
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: New CGRCjets super scale A-10

    Thanks,
    I've been eyeing on this plane for quite some time, and I may jump into it when the new airframe becomes available.
    I'm not a big fan of EDF, so it will be turbine powered for sure.
    Yann

  5. #30
    cgrcjet's Avatar
    Join Date
    Jul 2007
    Location
    paso robles, CA
    Posts
    632

    RE: New CGRCjets super scale A-10

    No problem Yann. Im hoping to have it available sooner than later as i already have some orders and deposits for it. The design process can be the worst part of it. That can consume alot of time in itself. I will try to make short work of it as we will also still need to do testing on the new airframe.

    thanks
    chris
    WWW.CGRCJets.com

  6. #31
    cgrcjet's Avatar
    Join Date
    Jul 2007
    Location
    paso robles, CA
    Posts
    632

    RE: New CGRCjets super scale A-10

    One of the design challenges, is the deceleron. Trying to find a small and strong enough servo for the application without bringing it out of spec.

    chris
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Db85598.jpg 
Views:	33 
Size:	19.2 KB 
ID:	1752332   Click image for larger version. 

Name:	To44404.jpg 
Views:	40 
Size:	22.3 KB 
ID:	1752333  
    WWW.CGRCJets.com

  7. #32

    Join Date
    Mar 2008
    Location
    Redmond, WA
    Posts
    18
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: New CGRCjets super scale A-10

    Is the Deceleron meant to open all the way only or is it supposed to have partial settings like regular flaps?
    www.motioncontrolsys.com

  8. #33
    cgrcjet's Avatar
    Join Date
    Jul 2007
    Location
    paso robles, CA
    Posts
    632

    RE: New CGRCjets super scale A-10

    ORIGINAL: McsGuy

    Is the Deceleron meant to open all the way only or is it supposed to have partial settings like regular flaps?
    On the real A-10, i believe they can be adjusted to any point. At least thats what i have observed at airshows. They are never fully open in flight, only on the ground. Fully open is shy of 90 degrees, im guessing about 80 degrees. 80% is the max open position in flight. I know a crew member on the west coast demo team. Maybe i can contact him and see if they can be opened to any range of motion. I would think they have set settings with all the other stuff they have to think about.

    thanks
    chris
    WWW.CGRCJets.com

  9. #34

    Join Date
    Apr 2002
    Location
    Sellersburg, IN
    Posts
    229
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: New CGRCjets super scale A-10

    FYI on the decelron, as per the book "operators manual" that i got off ebay i believe that the max INFLIGHT opeing is set for 40 degrees. I will check and post later tonight after i find it in the book again. This is for the A model but i assume its the same on all. I think your right about the max open being 80 degrees
    Sam Woodard
    AMA 51401
    IMAC 3207

  10. #35
    speed is life's Avatar
    Join Date
    May 2006
    Location
    Redstone, CO, USA
    Posts
    304
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: New CGRCjets super scale A-10


    ORIGINAL: McsGuy

    Is the Deceleron meant to open all the way only or is it supposed to have partial settings like regular flaps?
    The A-10's speed brakes are proportional........selectable by a switch on the right throttle quadrant. We described the amount of speed brake deployment in "degrees", just did it by how it looked.....no indicator gauge.
    Interestingly enough, the airplanes roll rate is fractionally faster with just a little blip of open. Maybe a 2" split.
    How do I know this? I flew the "Hog" from 1978-1981

    Be careful with the idea of working speed brakes, there was at least one incident of a Mibo A-10 fitted with them that suffered catastrophic aileron flutter. Managed to bring it back using rudder.
    Cheers,
    Mike


    PS: Hi Chris, no not built yet, divorce has gotten in the way.......


    -Schuebeler Sales USA-

    Will Rogers never met a fighter pilot.
    -Author unknown

  11. #36

    Join Date
    Mar 2008
    Location
    Redmond, WA
    Posts
    18
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: New CGRCjets super scale A-10

    Thanks guys, I'm not used to such competent feedback

    Chris, as you work through your design are you able to develop fairly accurate take off and landing mph specs? I plan to have full telemetry and knowing the real boundaries would be great. (I know the final weight is the critical component which you don't have full control over, but something based on min/max values)
    www.motioncontrolsys.com

  12. #37
    cgrcjet's Avatar
    Join Date
    Jul 2007
    Location
    paso robles, CA
    Posts
    632

    RE: New CGRCjets super scale A-10


    ORIGINAL: speed is life


    ORIGINAL: McsGuy

    Is the Deceleron meant to open all the way only or is it supposed to have partial settings like regular flaps?
    The A-10's speed brakes are proportional........selectable by a switch on the right throttle quadrant. We described the amount of speed brake deployment in ''degrees'', just did it by how it looked.....no indicator gauge.
    Interestingly enough, the airplanes roll rate is fractionally faster with just a little blip of open. Maybe a 2'' split.
    How do I know this? I flew the ''Hog'' from 1978-1981

    Be careful with the idea of working speed brakes, there was at least one incident of a Mibo A-10 fitted with them that suffered catastrophic aileron flutter. Managed to bring it back using rudder.
    Cheers,
    Mike


    PS: Hi Chris, no not built yet, divorce has gotten in the way.......[img][/img]


    Hi Mike

    Sorry to here about that. Was not because of the hobby was it? I know my wife has threatened me because of it but this time around she seems a bit more at ease. I will admit, i spend more time on this stuff than she can handle. I just appreciate the fact that she stuck it out. Ofcourse we moved from California to Florida and with the big price drop with housing and the beaches, its like vacation.

    Thanks for the insight on the A-10. I knew you would come around. I think i still owe you a wingtube.

    thanks
    chris
    WWW.CGRCJets.com

  13. #38
    cgrcjet's Avatar
    Join Date
    Jul 2007
    Location
    paso robles, CA
    Posts
    632

    RE: New CGRCjets super scale A-10


    ORIGINAL: McsGuy

    Thanks guys, I not used to such competent feedback

    Chris, as you work through your design are you able to develop fairly accurate take off and landing mph specs? I plan to have full telemetry and knowing the real boundaries would be great.
    Hi Joe

    I would not know until testing is complete. The Flaps will be different than the older version. They should have a bit more lift on the newer version as they will extend out further. On the older version, too much flap would act as an air brake. Almost learned that the hard way with the first test. I was not there for it but they said it almost stopped in mid flight.


    chris
    WWW.CGRCJets.com

  14. #39
    speed is life's Avatar
    Join Date
    May 2006
    Location
    Redstone, CO, USA
    Posts
    304
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: New CGRCjets super scale A-10




    [/quote]
    Hi Mike

    Sorry to here about that. Was not because of the hobby was it? I know my wife has threatened me because of it but this time around she seems a bit more at ease. I will admit, i spend more time on this stuff than she can handle. I just appreciate the fact that she stuck it out. Ofcourse we moved from California to Florida and with the big price drop with housing and the beaches, its like vacation.

    Thanks for the insight on the A-10. I knew you would come around. I think i still owe you a wingtube.

    thanks
    chris
    [/quote]

    Hi Chris!
    Moved to Florida? Big change!
    Yea, need to get that wing tube and buy your set of weapons pylons.

    How about PM me your latest contact details. Thanks
    -Mike

    -Schuebeler Sales USA-

    Will Rogers never met a fighter pilot.
    -Author unknown

  15. #40
    cgrcjet's Avatar
    Join Date
    Jul 2007
    Location
    paso robles, CA
    Posts
    632

    RE: New CGRCjets super scale A-10

    Yes Florida. I lived in Cali my whole life and was use to the high cost of living. Now that i am in florida i have less stress. Only thing i am worried about here is the humidity when i go to pull the molds from these plugs. I use pva in mold and was having a hard time with it fully drying. Im not sure if i want to use it on these plugs, especially with all the detail that will be in them. I may have to just wax them 100 times. Dont want all the work to go down the drain.

    chris
    WWW.CGRCJets.com

  16. #41

    Join Date
    Dec 2007
    Location
    Merritt Is, FL
    Posts
    316
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: New CGRCjets super scale A-10

    Hi Chris
    Where about is FL are you? I am in FL too and a great fan of the A10. Maybe we can meetup. The A10 is also my favorite and I am flying my third design.
    Fahim
    http://www.wowplanes.com

  17. #42
    cgrcjet's Avatar
    Join Date
    Jul 2007
    Location
    paso robles, CA
    Posts
    632

    RE: New CGRCjets super scale A-10


    ORIGINAL: wowplanes

    Hi Chris
    Where about is FL are you? I am in FL too and a great fan of the A10. Maybe we can meetup. The A10 is also my favorite and I am flying my third design.
    Fahim
    Hi Fahim

    Hows your A-10's coming along? I am about an hour south of Tampa. Where are you at? Maybe you should come over and help me finish some plugs, lol!

    Chris
    WWW.CGRCJets.com

  18. #43

    Join Date
    Dec 2007
    Location
    Merritt Is, FL
    Posts
    316
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: New CGRCjets super scale A-10

    Chris

    My A10 has been doing well. I must have over 150 flights on it by now. I replaced the 90mm Midi fans with the 12 blade CS90, and got some more thrust plus it sounds more like a turbine. I had to sacrifice some flight duration, but still at 5 to 6 mins, which is about as much as I can stand. I added a sound system programmed with gatling gun and missile sounds. It is so cool to fly by and shoot the gun and launch a missile. I will have to make another video soon with the sounds.

    You are right about the flaps acting as air brakes when fully deployed. I found that out the hard way too. Came in for a landing approach nice and easy but as soon as I leveled the plane, it stopped dead at 3 feet above the runway. Cracked the wing in 3 places and knocked the gatling gun off, and bent the nose strut. But most of the damage was cosmetic, and I was able to fix it and it is flying again.

    I am in Merritt Island, a stone's throw from Cape Canaveral, on the east coast. Probably about 2 or 3 hours away from you. I would love to come over and help you with the plugs, but it is a long drive to and back. Hopefully we can meet up at some event.

    Fahim
    http://www.wowplanes.com

  19. #44

    Join Date
    Mar 2008
    Location
    Redmond, WA
    Posts
    18
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: New CGRCjets super scale A-10

    ORIGINAL: wowplanes
    I added a sound system programmed with gatling gun and missile sounds. It is so cool to fly by and shoot the gun and launch a missile. I will have to make another video soon with the sounds.
    Hi Fahim, can you provide a link to the sound system you used?

    Thanks,

    Joe
    www.motioncontrolsys.com

  20. #45

    Join Date
    Dec 2007
    Location
    Merritt Is, FL
    Posts
    316
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: New CGRCjets super scale A-10

    Hi Joe
    Here is the link http://www.modelsoundsinc.com/index.htm
    Fahim
    http://www.wowplanes.com

  21. #46

    Join Date
    Mar 2008
    Location
    Redmond, WA
    Posts
    18
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: New CGRCjets super scale A-10


    ORIGINAL: wowplanes

    Hi Joe
    Here is the link http://www.modelsoundsinc.com/index.htm
    Fahim
    Thanks!
    www.motioncontrolsys.com

  22. #47
    cgrcjet's Avatar
    Join Date
    Jul 2007
    Location
    paso robles, CA
    Posts
    632

    RE: New CGRCjets super scale A-10

    Fahim

    Thats not to far. You could come over for half day everyday, lol. Not like im in california anymore.

    The sound module sounds excellent. I have thought of this on a few occasions but did not think it would be loud enough. Is it loud enough? A nice added effect would be some smoke spittin out the barrel. Im sure there could be a way to modify one of the smoke setups. You would probably need some kind of rotating mechanism that would open and close with some pressure behind it to get the same effect. Unfortunately i think i have enough on my plate for a bit. The missile thing would be easier. Just throw some model rockets on it.

    Yes we will have to meet up. Did you go to Florida jets? I may have seen you there and didnt know it. I will be in Miami in november. My wife has decided to take up running and is doing a marathon there. I hope shes not practicing to get ready to run from me seeings i have started this project again.

    chris
    WWW.CGRCJets.com

  23. #48
    cgrcjet's Avatar
    Join Date
    Jul 2007
    Location
    paso robles, CA
    Posts
    632

    RE: New CGRCjets super scale A-10

    Today i worked on finishing touchups and then started prime buildup on rear horizontal wing and elevator. The rear wing section will have all the detail like the real one. I think the forks are counterweights on the real one but i could be wrong. Mike?

    chris
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	Ay74896.jpg 
Views:	43 
Size:	36.8 KB 
ID:	1752473   Click image for larger version. 

Name:	Yt62536.jpg 
Views:	35 
Size:	36.3 KB 
ID:	1752474   Click image for larger version. 

Name:	Ot48736.jpg 
Views:	34 
Size:	25.3 KB 
ID:	1752475  
    WWW.CGRCJets.com

  24. #49
    cgrcjet's Avatar
    Join Date
    Jul 2007
    Location
    paso robles, CA
    Posts
    632

    RE: New CGRCjets super scale A-10

    Im going to go with fully enclosed layups on the control surfaces and wings this go around. Im hoping this will eliminate any kind of time consuming trimming. Just trimming the flashing should make it quicker after demolding. The rear verticle stab has a bit of undercut for the rudders. I think this small amount of undercut should be fine when demolding. I still need to do this to the rear horizontal but i could not help but start a bit of priming. The hinge points on the control surfaces will also be layed out to make things easier. I am going to have a go at hinging the aileron like the real A-10 as well. Aileron has 2 hinge points.

    chris
    WWW.CGRCJets.com

  25. #50

    Join Date
    Dec 2007
    Location
    Merritt Is, FL
    Posts
    316
    Gallery
    My Gallery
    Models
    My Models
    Ratings
    My Feedback

    RE: New CGRCjets super scale A-10

    Chris
    I guess I can fly over and back in my A10 everyday. We will have to build a big one and use a boatload of LIPOs though. LOL

    Your are right, the sound systems are not loud enough. Besides they add weight and consume battery power. Adding 1/2 lb to my 13lb A10 is a lot of weight. Also it is expensive to equip a sound system for each of my models.

    So I came up with a different approach. My sound system is housed in a sound box on the ground. Runs off its own battery, and has a Rx bound to the same transmitter I am using to fly the model. The engine sounds are not programmed in because the fans make enough noise anyway, just the gun and missile sounds are programmed in. I fly the A10 in a strafing run and just in front of the pilot station, I flip a swicth linked to the aux channel and this activates the aux channel of the Rx in the sound box on the ground. That plays either the gatling gun burst or a missile launch sound. The sounds are loud enough, so much so, that my gas buddies have complained that they can't hear their gas engines when I fire the gun. My reply is now they know how we electric guys have suffered for years. Its payback time.

    The other advantage of this approach is that I can download different sounds from my laptop, at the field, to play with my other models. I have a Merlin sound and gun and bombs for my Hurricane, and a twin engine Pratt &Whitney with guns and bombs for my B25 & B26. The only compromise is that there is no doppler effect in a fly by. My explanation is that imagine you are in the cockpit, the pilots do not have doppler effect.

    As for the gun smoke, I have been thinking and playing with some prototype I made up, but not happy with the results yet. Needs more tweaking.

    I was going to bring this setup to FL jets 2012, but unfortunately I came down with flu and could not make it. Last year (2011) my A10 won an award at the FLJets, and I was hoping to win another one for the sound effects this year. I am planning to attend Top Gun, not as a competior, just as a spectator. Mostly likely I will be there for Sat May 5th. If you are planning to come, we can hook up there and have a drink together.

    Fahim



    http://www.wowplanes.com


Page 2 of 14 FirstFirst 123412 ... 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.