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Old Dec 21, 2004, 06:41 PM
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lowpass's Avatar
Albuquerque, NM 87114
Joined May 2000
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New K & A Models F-84F Thunderstreak

Check out the new F-84F Thunderstreak at K & A Models, its designed for a 480 or 609 fan. See it at www.kamodels.com.



Just more shameless promotion of K & A Models and the Albuquerque area.

Kyle
Albuquerque, NM
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Last edited by lowpass; Dec 21, 2004 at 06:48 PM. Reason: Clarify title
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Old Dec 21, 2004, 07:15 PM
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Ed Waldrep's Avatar
Las Vegas, NV
Joined Dec 1996
7,933 Posts
If I may quote Eric Cartman from Southpark,....."Sweeet". Man I love the swept wing version. Dangit, wish it was larger for 90mm but I guess I could finagle some retracts into it...assuming I ever get time to build one. My little K&A Sabre is still in the box after 2 years!

Very nice!

Oh and you might want to change the title to include the company name K&A, that'll help when people use the search function.
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Old Dec 21, 2004, 07:19 PM
go fly! no crashes!
Synwpn's Avatar
Honolulu, HI
Joined Jun 2003
2,845 Posts
damn, and i STILL havent gotten a F86 yet like i keep intending to!

she looks very good though! maybe i should look at this one instead.
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Old Dec 21, 2004, 07:51 PM
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Albuquerque New Mexico
Joined Jun 2002
367 Posts
New F-84

Thanks for the posting of the F-84 Kyle.

Just to let some of you know we have not yet installed a set of retreacts however we did design the plane so that you can.
We ran the wing thicker at the tip so that at the point where the retracts will go you have about a 1" profile. This is good for most small retracts such as the spring air and robart's to be installed. We will try our best to get around to installing a set so that we can pass on the photo's and info to those that are interested. Most likely one of our customers will get to it before we do but we will try.

Best regards,
Ken Williams
K&A Models
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Old Dec 21, 2004, 08:34 PM
EDF rules... :)
AirX's Avatar
Joined Nov 1999
13,639 Posts
Very nice F-84, I used to pass one everyday going from work to night classes many years back. It is still where it was before on a pedestal outside of a VFW in South Houston near the Ellington Field. Congrats on the new offering.

Eric B.
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Old Dec 21, 2004, 08:41 PM
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lowpass's Avatar
Albuquerque, NM 87114
Joined May 2000
240 Posts
Ed,

I tried to change the heading but it only changed within the post. If you know the secret please let me know.

Kyle
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Old Dec 21, 2004, 08:51 PM
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Ed Waldrep's Avatar
Las Vegas, NV
Joined Dec 1996
7,933 Posts
Quote:
Originally Posted by lowpass
Ed,

I tried to change the heading but it only changed within the post. If you know the secret please let me know.

Kyle
Hmm no idea...people will find it.
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Old Dec 21, 2004, 09:42 PM
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Tempest's Avatar
Gaithersburg MD, United States
Joined Nov 2000
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Beautiful job Ken! Man another one of your designs I have to add to my fleet. Boy, you need to cut this out

Paul
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Old Dec 22, 2004, 09:23 AM
Registered User
Albuquerque New Mexico
Joined Jun 2002
367 Posts
Here's another photo of the F-84

Ken Williams
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Old Dec 23, 2004, 03:10 PM
AKA Terry Till
ex-racr's Avatar
Alexandria, VA
Joined Apr 2002
1,532 Posts
How much did you have to enlarge the inlet from scale?
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Old Dec 23, 2004, 06:30 PM
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Albuquerque New Mexico
Joined Jun 2002
367 Posts
Well won't say for sure but when it comes to EDF's you have to stick within certain percentages to arrive with a plane that performs well. Unless your flying turbines keeping the inlet or exhaust scale is out of the question. That is if you want your plane to perform well. Just the nature of EDF's.

Ken Williams
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Old Dec 23, 2004, 06:50 PM
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Wareham, Dorset, UK
Joined Dec 2003
1,912 Posts
Quote:
Originally Posted by Ken Williams
Well won't say for sure but when it comes to EDF's you have to stick within certain percentages to arrive with a plane that performs well. "Unless your flying turbines keeping the inlet or exhaust scale is out of the question". That is if you want your plane to perform well. Just the nature of EDF's. Ken Williams
Hi Ken

so you don't give straight answers?
"Unless your flying turbines keeping the inlet or exhaust scale is out of the question" ?
Could you explain.

Have fun with fans

Klaus
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Old Dec 23, 2004, 06:52 PM
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Wareham, Dorset, UK
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Sorry, I nearly forgot

Very nice model!!!!!!

Klaus
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Old Dec 23, 2004, 07:09 PM
2014 EDF JET JAM We be Jamming
Kevin Cox's Avatar
St. Louis Intl, Missouri, United States
Joined Jan 1997
6,856 Posts
Quote:
Originally Posted by Ken Williams
Well won't say for sure but when it comes to EDF's you have to stick within certain percentages to arrive with a plane that performs well. Unless your flying turbines keeping the inlet or exhaust scale is out of the question. That is if you want your plane to perform well. Just the nature of EDF's.

Ken Williams
Very nice model!

True statement Ken and it has always been my way of doing things.

Klaus with a 'K'. Turbine model engines actually have a very small FSA compared to what we try to do with EDF and ICDFs (thrust wise). So what Ken is saying, that some sacrifies will need to be made in most scale models to achieve the desired performance level with EDFs.
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Last edited by Kevin Cox; Dec 23, 2004 at 07:30 PM.
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Old Dec 23, 2004, 07:17 PM
Registered User
Albuquerque New Mexico
Joined Jun 2002
367 Posts
Hi Klaus,

Most EDF's require an inlet swept area of around 115 to sometimes 140 percent to perform well. In most cases you can not keep your inlet scale on most EDF jets an achieve these numbers. Most of this applies to smaller EDF's in the mini 480 size. As your plane gets larger you will have less of a problem arriving at these numbers.
The upside of a tubine is that you can compress the air much easier then with an electric motor thus being able to keep the inlets scale.

Ken Williams
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