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I have no scientific formula as I am a man of simplicity.

What I did was use an antenna calculator to get the size of a 1/2^ @27.2 Mhz and a 1/2^ @ 145 Mhz.

27.2 = 5.51m
145 = 1.03m
1.03 ÷ 5.51 = 0.18693285
Next I took the dimensions of the Astroplane and multiplied them by 0.18693285.

[QUOTE="HomerBB, post: 593425, member: 8569"] I have no scientific formula as I am a man of simplicity. What I did was use an antenna calculator to get the size of a 1/2^ @27.2 Mhz and a 1/2^ @ 145 Mhz. 27.2 = 5.51m 145 = 1.03m 1.03 ÷ 5.51 = 0.18693285 Next I took the dimensions of the Astroplane and multiplied them by 0.18693285. [/QUOTE]

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