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Old 01-03-2013, 02:56 AM   #1
steveair2
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Default F105 Thunderchief

Hello group, I have been away from R/C for fifteen years. I recently started looking at what is now available online. I am amazed at the changes.

I am wanting to scale up Steve Bage's F105. The plans I have show a wing span of ten and a half inches. I would like to scale this model up to around thirty six inches in span and put a electric motor in the nose. "prop jet"

Can anyone direct me to a thread that will help me calculate what motor and prop I would need for the wing area I am planning?

I would also like to know why most prop jets are pushers and not tractor?
My guess would be CG issues.

Thanks in advance for your help.

Steve
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Old 01-03-2013, 03:15 AM   #2
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Originally Posted by steveair2 View Post
Hello group, I have been away from R/C for fifteen years. I recently started looking at what is now available online. I am amazed at the changes.

I am wanting to scale up Steve Bage's F105. The plans I have show a wing span of ten and a half inches. I would like to scale this model up to around thirty six inches in span and put a electric motor in the nose. "prop jet"

Can anyone direct me to a thread that will help me calculate what motor and prop I would need for the wing area I am planning?

I would also like to know why most prop jets are pushers and not tractor?
My guess would be CG issues.

Thanks in advance for your help.

Steve
Hi Steve check out Heads up Rc on a power system, Email Jeff and he can fit you with a Perfect power system, A Lot of People here use Jeffs power systems and Jeff is great to Work With.
http://www.headsuprc.com/servlet/StoreFront

I may be getting Older, But I Refuse to grow Up I am Having to much Fun to Grow Up LOL
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Old 01-03-2013, 03:24 AM   #3
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WOW! That's a nice link! Thanks Chellie!
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Old 01-03-2013, 03:24 AM   #4
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this would be my Recommendation using a 6x5.5 APC prop on 3 cells, later if you want to go Faster, use a 5x5 or 4.5 x 4.5 apc prop on 4 cells use a wattmeter to be on the safe side

http://www.headsuprc.com/servlet/the...450-Jet/Detail

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Old 01-03-2013, 03:26 AM   #5
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BTW Welcome to Wattflyers

I may be getting Older, But I Refuse to grow Up I am Having to much Fun to Grow Up LOL
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Old 01-03-2013, 03:36 AM   #6
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Originally Posted by CHELLIE View Post
Hi Steve check out Heads up Rc on a power system, Email Jeff and he can fit you with a Perfect power system, A Lot of People here use Jeffs power systems and Jeff is great to Work With.
http://www.headsuprc.com/servlet/StoreFront
+1 on that and Welcome!

Just call me X! (or Gary works, too.)
Another signature landing! Somebody help me find all the pieces...

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Old 01-03-2013, 03:37 AM   #7
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http://www.wattflyer.com/forums/foru...ysprune=&f=218

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Old 01-03-2013, 03:48 AM   #8
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How long has that been there? See all the cool stuff I missed...

looks like it's quote night!
Han Solo: Luke? Luke's crazy! He can't even take care of himself, much less rescue anybody.
[Chewie barks again]
Han Solo: A Jedi Knight? Jeez, I'm out of it for a little while, everyone gets delusions of grandeur!

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Another signature landing! Somebody help me find all the pieces...

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Old 01-03-2013, 04:03 AM   #9
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Thank you all for the help. FYI, not looking to break the sound barrier, I just want a cool sport plane. I like scratch building and I like oldtime methods. I also build rubber free flight using tissue and nitrate dope. This is the planned method on the F105.
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Old 01-03-2013, 04:15 AM   #10
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Originally Posted by steveair2 View Post
Thank you all for the help. FYI, not looking to break the sound barrier, I just want a cool sport plane. I like scratch building and I like oldtime methods. I also build rubber free flight using tissue and nitrate dope. This is the planned method on the F105.
Cool My Father got me started with CL when i was about 12, that was so much fun i never left model aviation I am a old time builder too, i built models from balsa, tissue, ambroid glue and dope too, I like building Planes from Foam now, its quick and fun, here are some of my scratch built planes if your interested, Take care and have fun, Chellie

http://www.wattflyer.com/forums/show...652#post715652

I may be getting Older, But I Refuse to grow Up I am Having to much Fun to Grow Up LOL
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Old 01-03-2013, 04:39 AM   #11
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Hi Chellie, just looked at your planes. Umm,...... ah,....... WOW!
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Old 01-03-2013, 09:09 AM   #12
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Steve,

Great to see some interest in my old F105 plane (I'm Steve Bage)

An scaled up EDF conversion has already been done and it flies fantastically. Here's the video:
YouTube Video
ERROR: If you can see this, then YouTube is down or you don't have Flash installed.


The builder goes by the name Boogie over on RC groups. He did a build thread: http://www.rcgroups.com/forums/showthread.php?t=1314878

You could PM him for more info or I can put you in touch if you drop me a PM here. A prop rather than EDF would simplify the conversion though I think a pusher might be the way to go with the battery up front to achieve balance.

I hope you do go ahead with the project, i'd love to see another thud take to the air.

Steve
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Old 01-03-2013, 05:02 PM   #13
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....subscribed
gonna be a good thread I can tell....

cr
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Old 01-04-2013, 12:17 AM   #14
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That is a really nice link Steve. Your F105 drawings are very nice. I really appreciate everyones help, thank you all very much.
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