Akaflieg Study Mini Lak FES

[Jamie Shore]

In August 2018, an idaflieg tested a mini Lak FES against a Discus 2 as shown in the attached PDF. 

• I added the first page in the attached PDF. This first page is a Google translated version of the real paper's page 2, 'Seite 2 von 18'. If anybody knows German well, please share your insights with the group.
• From page 12, 'seite 12 von 18', I surmise the following converted into knots and pounds:
• Best glide ratio is 39:1 at 58 KIAS and 757 pounds
• Cruising flaps 1 up to 65 KIAS
• Cruising flaps 0 from 65-78 KIAS
• Cruising flaps -1 greater than 78 KIAS
• Please check my work.

I skimmed the paper yesterday. Today, I tried these flaps settings and speeds on my 4.5 hours flight. Those settings and speeds felt right.

Jamie Shore

mini Lak FES sn012

[Matt Herron]

Hi Jamie: Looking through the test results, it appears they tested a LAK 17B FES rather than a Mini LAK FES against the Discus 2C. Did I miss something???

Matt

[Lynn Wyman]

That is the official designation of the Mini.

Sent from my iPhone

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[Steven L. Bair, Psy.D.]

Jamie,

If I am understanding the data correctly Flaps +2 for thermaling, +1 for best L/D, and +1 for climbing? Thanks,

Steve