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Touring Motor Gliders Association (TMGA)

Best glide speed when soaring


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Posted

Hi I operate a Pipstrell Virus (41 wingspan) out of Placerville, CA and Canby Oregon. Great motorglider plenty fast 120 kts. Question, when thermaling, the manul suggest 49 kts and one notch of flaps. My understanding is that may reduce the glide ratio but may improve the minimum sink rate, has anyone used flaps when thermaling, and what was the performance?

Pipistrell Virus N282TT

Posted

Hi I operate a Pipstrell Virus (41 wingspan) out of Placerville, CA and Canby Oregon. Great motorglider plenty fast 120 kts. Question, when thermaling, the manul suggest 49 kts and one notch of flaps. My understanding is that may reduce the glide ratio but may improve the minimum sink rate, has anyone used flaps when thermaling, and what was the performance?

Pipistrell Virus N282TT

  • 1 year later...
Posted

Roger - sorry for the late response - hard to measure best glide and min sink, but I think the rationale for flaps in thermal is to reduce stall speed enabling tighter turns in the narrow column thermals. rand

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