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To answer the OP's question I have dead sticked the -12 in from 10,000' MSL to 1,500 MLS and landed. As best as I can remember (I did not write it down) it was 3-400 FPM decent at 95 MPH IAS. That seemed to be the best glide that day. Needless to say it glides extremely well.
The book says that max glide is 85Kts.
What revision are you using? At the moment POH rev 3 is the latest stating max glide speed is 63kts, minimum descent 59kts.
: The Skyview could easily display on the GPS map a circle showing the limits of the glide range, based on a user defined parameter giving the gliding ratio of the plane at a given speed.
Going through this thread, I came with a potentially helpful improvement on Skyview: The Skyview could easily display on the GPS map a circle showing the limits of the glide range, based on a user defined parameter giving the gliding ratio of the plane at a given speed. One could even imagine a more sophisticated approach based on the gliding ratio under different speeds updating the circle size as the speed changes and also taking into account the wind and gliding path. I understand that this is a Dynon more than an RV-12 issue but as the subject of gliding range was addressed in this thread, I am interested in hearing my fellow RV-12 pilots chiming on this.
You still have the cyan "banana". While gliding I select ground level as altitude in the Dynon. The banana gives the gliding distance with present speed. I do the same with the B777 when training for a dual engine failure.
BTW Skydemon has this feature with the circle around your position.
The book says that max glide is 85Kts. Minimum sink (Vs1...no flaps stall...times 1.3) is 61 Kts. I assume the book assumes no power and the prop windmilling although it doesn't say that; it says only that 85 Kts is the speed to fly if the engine quit.
3.) I LOVE THIS AIRPLANE!.....except for the danged throttle.
EBB!
The glide ratio of my RV-6, while not completely "brick-like", is inarguably somewhat steeper than most, if not all, of the other airplanes I've flown. [snip]
Do yourself a favor and install the vernier throttle from Mcfareland. You will love it, and not even realize that the carbs are sprung full open. I absolutely love mine!!
Tom
I thought Van's was shipping the vernier throttle w/light spring in latest engine/fire wall forward kits?
They do, but there have been a lot of kits and S-LSA's delivered before that change was made.
I received my engine and firewall forward kit last month...Scott does this fit in the time line for the new stuff?
What is the honest glide ratio now that's been determined for a RV-12?
As in how many FPM with plane trimmed dead stick for 63 kts air speed?
Is this correct, about 13:1 ? 13000 ft traveled per 1000 ft loss in altitude.
1 kt = 6072 ft... 13000 ft/6072 ft per minute so you can travel about 2.14 kts per 1000 ft loss of altitude. That would make sink rate just under or over 500 fpm? Distance traveled is 63 kt/hr / 60 min /hr, or 1.05 kts per minute. 2.14 kts/ 1.05 kts traveled per minute. About 500 fpm for a decent rate?
https://www.pilotsofamerica.com/community/threads/dead-stick-landing-rv-12.57282/
Holy smokes you -12 drivers get some awesome glide! My -7A sink rate is significantly more than that, around double.
Jeremy, if you look at the -12’s wings, you’ll notice much larger area and remember, the airplane is a lot lighter as an SLA. Mine is close to flying with the UL engine.
Regards,
one thing not mentioned in the video was whether that was 13:1 with pants on or off (or does it even make that much of a difference?)
Some guys only have one thing on their mind, no matter that the engine has quit and there are only a few minutes gliding time left to join the mile high club.That’s getting too personal
Some guys only have one thing on their mind, no matter that the engine has quit and there are only a few minutes gliding time left to join the mile high club.
Search RV12 on YouTube. There is a video of a dead stick landing...the guy flies forever with the engine off.