Hemmi P141 Air Conditioning Duct Calculations

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Country of manufacture: Japan,            Date of manufacture: ____
Overall length: 17.0 cm,          Width: 3.5 cm,           Weight: 50.9 gms
Materials: All plastic, metal end braces, adjustable
Cursor: 2.4 X 4.4 X 0.8 cms; plastic runners, metal framed plastic lens, adjustable; lines = three on front, two on back
Scales: 31, no extensions, some specialized
Front: LL/1, LL/2, LL/3, DF [ CF, CIF, CI, C ] D, LL3, LL2, LL1
Back: T, S, U, P, α [ Q, Γ, c, K, V, Δ, R, β ] A, q, n, ψ, L, τ
Gauge Marks: [π, e, 1/e ]
Condition: C4 (Minimal signs of use)
Came with: nothing

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