Thanks John. Makes it clear why one of the Legacy instructors was quoted as saying, “With the engine out, the Legacy comes down like a greased Buick”
– I guess specifically talking about with the gear down.
We have Adam Molny’s closing inboard landing gear door system which should help with the gear down drag a lot. Adam, if you see this, do you have engine
off sink rate numbers with your gear down and inboard doors closed you can share for comparison?
Thanks,
Valin Thorn
Legacy Project
Boulder, Colorado
From: Lancair Mailing List [mailto:lml@lancaironline.net]
On Behalf Of John Smith
Sent: Tuesday, April 22, 2014 7:56 AM
To: lml@lancaironline.net
Subject: [LML] Re: Hartzell Prop Governor Low RPM Capability
Tim Ong demonstrated glide performance to me in 199L some years ago. Following is a summary of what I observed, and which I have in my Supplementary POH. Hope
of some use.
Approx. sink rates at ~120-130kts IAS
Config
Sink rate, ft/min
Pitch full fine Pitch full course
(max rpm) (min rpm)
Clean 1500 500
10 flap 1600 1000
10 flap + gear 2500 2300
30 flap + gear 3000 2500
John
John N G Smith
Tel / fax: +61-8-9385-8891
Mobile: +61-409-372-975
Email: john@jjts.net.au