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Old Oct 16, 2012, 12:39 PM
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If you need any info or pics let me know? I have the standard dimensions, turn radius, cabin layouts, etc. No other technical pictures of systems otherwise other than schematics. I have some pics from work, would be willing to take more but I won't be back to work until Nov.
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Old Oct 16, 2012, 12:54 PM
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Originally Posted by RCFLYBOY1 View Post
I wish my wife would see it that way all I ever get is grief.She says I have to many toys, and her day of fun is not going to the flying field.Maybe I should trade her in for a new model.
Lol I feel your pain Sir! . . . .95% of women of this planet feel & act the same way towards this hobby!
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Old Oct 16, 2012, 12:55 PM
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Originally Posted by jdlilfan View Post
If you need any info or pics let me know? I have the standard dimensions, turn radius, cabin layouts, etc. No other technical pictures of systems otherwise other than schematics. I have some pics from work, would be willing to take more but I won't be back to work until Nov.
I appreciate that , I will probably need the 145's proper CG point, thank-you times a BILLION!
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Old Oct 16, 2012, 03:59 PM
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Here is some good material about embraer's design of wings and airfoils. Something good to read if you wanna fall asleep!

http://www.scielo.br/pdf/jbsmse/v26n4/a04v26n4.pdf

Working on CG. We use an electronic W&B close out system that computes our CG so basically we have to do nothing in terms of planning. Ramp inputs the bag weights, agents input the passengers, and we input the fuel on board. Operations and a computer program does the rest and spits out the data. If we have to go manual, we use a wiz wheel to add everything up and see if the final index is within the applicable area.

Typically the plane sits at an index of -7 and around 28,000lbs empty. Toss in a full boat, 1200lbs of bags, and 6-8,000 lbs of gas and you will be around 46,000lbs and an index around -21/-22 with a stab setting of 8 degrees. As to where the datum is, I have no idea. Our manuals don't indicate any measurements.

I did find this though from an article: On an ERJ-145, "you have a center of gravity band measured mostly in inches." The mean aerodynamic chord for a -145 is a mere 112 in. and CG range is considerably narrower-just 20% to 27% of MAC or about 22-30 in. fore or aft.

http://atwonline.com/aircraftengines...ncing-act-0309

Where 112in is I am not sure? I'm assuming the inboard leading edge?
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Old Oct 16, 2012, 04:12 PM
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Quote:
Originally Posted by jdlilfan View Post
Here is some good material about embraer's design of wings and airfoils. Something good to read if you wanna fall asleep!

http://www.scielo.br/pdf/jbsmse/v26n4/a04v26n4.pdf

Working on CG. We use an electronic W&B close out system that computes our CG so basically we have to do nothing in terms of planning. Ramp inputs the bag weights, agents input the passengers, and we input the fuel on board. Operations and a computer program does the rest and spits out the data. If we have to go manual, we use a wiz wheel to add everything up and see if the final index is within the applicable area.

Typically the plane sits at an index of -7 and around 28,000lbs empty. Toss in a full boat, 1200lbs of bags, and 6-8,000 lbs of gas and you will be around 46,000lbs and an index around -21/-22 with a stab setting of 8 degrees. As to where the datum is, I have no idea. Our manuals don't indicate any measurements.

I did find this though from an article: On an ERJ-145, "you have a center of gravity band measured mostly in inches." The mean aerodynamic chord for a -145 is a mere 112 in. and CG range is considerably narrower-just 20% to 27% of MAC or about 22-30 in. fore or aft.

http://atwonline.com/aircraftengines...ncing-act-0309

Where 112in is I am not sure? I'm assuming the inboard leading edge?

JD. . .guys you have NO Idea how cool it is having a real 145 pilot helping me on my build. . . . Very Cool!
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Old Oct 16, 2012, 04:23 PM
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Demon, I'm just as excited for your build(s). Would love to purchase the smaller kit to compliment my bigger ERJ I'm building.
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Old Oct 16, 2012, 06:12 PM
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Wow jdlilfan, that is some nice info.
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Old Oct 17, 2012, 02:27 PM
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Now onto the 145's tail & stabilizer, the 145's stab is 10-15% longer than the 120's & the Rudder tail is slightly different.
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Old Oct 17, 2012, 02:30 PM
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145's 9mm depron Tail-Rudder & balsa stab & elevator
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Old Oct 18, 2012, 03:58 PM
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And then there where . . . . . .two!

Here are both the BA & Luxair 145's together with all thier fiberglass Nose & tail sections & tails In place, I'm amazed How fast I can build these babies!
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Old Oct 18, 2012, 04:39 PM
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Chris those look amazing. Knocking them out. Maiden this weekend
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Old Oct 18, 2012, 04:42 PM
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Looking great! Nice clean tails!
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Old Oct 18, 2012, 04:52 PM
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Chris those look amazing. Knocking them out. Maiden this weekend
Thankyou Sir. . . .I wished but their gonna need wings & nacels first l0l
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Old Oct 18, 2012, 04:53 PM
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Looking great! Nice clean tails!
Thankyou my friend!
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Old Oct 18, 2012, 07:47 PM
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So I have 2 questions. When can I buy one and for how much??? They look so awesome by the way!!! Great work!!!
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