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19 Mar 2024, 06:59 [ UTC - 5; DST ]


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 Post subject: Re: Piston-Powered Lancair Evolution?
PostPosted: 12 Mar 2017, 23:00 
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I wish RDD well but I think trying to make the IV-P into airplane than anyone can fly is a noble but futile proposition. It's expensive and doesn't really perform any better than the existing IV that actually exists yet it costs 3 times as much. There might be a market for a few of these but RDD has had a lot of trouble selling their $500-600K refurbished IV Extras; the market's reaction doesn't bode well for $750K LX-7s.


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 Post subject: Re: Piston-Powered Lancair Evolution?
PostPosted: 13 Mar 2017, 10:42 
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Location: Valparaiso, IN
Aircraft: Lancair Evolution
Username Protected wrote:
I too believe the term FIKI does just make some feel better. I've looked at the Villanger since the pay posted on the Lancair lml awhile ago. I believe fibercraft is involved with them for Lancair installs? And now on MT props too? Unfortunately too expensive for the stage it's in IMHO. If there were a bunch in the field tested and working great then maybe yes. Just too much to pay full price to line up as a test pilot. TKS, although messy is awesome. No run back problems. I never had a problem finding fluid before out or too low. But it's best in wings made for it, where the airfoil isn't changed.

Does RDD plan to buy and convert some Lancairs, or wait for a customer to buy one and bring it to them? Have you heard a timeline for flying prototype?

I've also noticed most of the cheaper IV-P are pre quick build and many have low hrs. So probably many not built as well since weren't using the factory jobs and hard on the engine not flying much or at all. Since the upgrade seems to pretty much trash all the parts that would be a problem in those birds it might get them off the market. I think the cheap depressed market prices are getting some lower budget low time pilots into a plane they shouldn't possibly be flying. Some pilots too cheap to pay for needed transition training.

Look forward to seeing one flying.

I agree the Villanger is expensive, but the concept is very similar to what I currently have, and it works beautifully. The nice thing about the Villanger is that it doesn't require nearly as much amp draw as the system I use, thus not requiring a backup alternator to run it.

I'm pretty sure they have one, maybe two they are converting to sell, but otherwise that would be it. As far as timeline to have one flying. I don't know, I'll be out there tomorrow and will find out more then. I will say that all of the tooling that I saw last year for the conversion was quite impressive.


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 Post subject: Re: Piston-Powered Lancair Evolution?
PostPosted: 13 Mar 2017, 10:45 
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Location: Valparaiso, IN
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Username Protected wrote:
I wish RDD well but I think trying to make the IV-P into airplane than anyone can fly is a noble but futile proposition. It's expensive and doesn't really perform any better than the existing IV that actually exists yet it costs 3 times as much. There might be a market for a few of these but RDD has had a lot of trouble selling their $500-600K refurbished IV Extras; the market's reaction doesn't bode well for $750K LX-7s.

That may be true, but the little bit I've been around at air shows and other people I have talked with have shown tremendous interest. Why? Same reason I mentioned earlier. It's basically a poor man's Evo. Same/better performance at half the price. The Extra I'm sure is a completely different market. The Evo has a lot of interest, but Lancair cannot get out of it's own way to sell more of them, thus I could see a lot of interested people wanting something like an Evo go for the LX-7.


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 Post subject: Re: Piston-Powered Lancair Evolution?
PostPosted: 13 Mar 2017, 11:04 
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Location: Ellijay,Ga (N Ga Mts)
Aircraft: Bonanza 35
Gerry are you happy with yours? what changes would you do if you could wave a magic wand?


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 Post subject: Re: Piston-Powered Lancair Evolution?
PostPosted: 13 Mar 2017, 18:24 
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Username Protected wrote:
Gerry are you happy with yours? what changes would you do if you could wave a magic wand?

Overall I'm very happy. If I had a change to make it would be to have the Villanger prop, some way to close in the landing gear to reduce that drag and overhaul my engine so I could run at it's typical ITT. I'm pretty certain with all of those changes I'd be close to 330 ktas.


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 Post subject: Re: Piston-Powered Lancair Evolution?
PostPosted: 14 Mar 2017, 19:24 
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Username Protected wrote:
If I had a change to make it would be to have the Villanger prop, some way to close in the landing gear to reduce that drag and overhaul my engine so I could run at it's typical ITT. I'm pretty certain with all of those changes I'd be close to 330 ktas.


Gerry, do you have the standard gear or the off road version for unimproved strips?

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 Post subject: Re: Piston-Powered Lancair Evolution?
PostPosted: 15 Mar 2017, 08:49 
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Username Protected wrote:
If I had a change to make it would be to have the Villanger prop, some way to close in the landing gear to reduce that drag and overhaul my engine so I could run at it's typical ITT. I'm pretty certain with all of those changes I'd be close to 330 ktas.


Gerry, do you have the standard gear or the off road version for unimproved strips?

I have the standard gear.

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 Post subject: Re: Piston-Powered Lancair Evolution?
PostPosted: 15 Mar 2017, 08:51 
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Since for some reason I cannot edit my post of the changes I'd like to do, I'll clarify the statement on my ITT. I was under the assumption that since the max continuous is 800 then most would fly it at 780 ITT. After speaking with my brother, he said 780 would be too high and 750 (which is what I currently run) is the appropriate temp.


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 Post subject: Re: Piston-Powered Lancair Evolution?
PostPosted: 16 Mar 2017, 10:37 
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Saw the progress on the LX-7. The wings weighed in at 205 lbs. They are close, but don't think they will have it done by Sun N Fun. Definitely by Oshkosh.


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 Post subject: Re: Piston-Powered Lancair Evolution?
PostPosted: 16 Mar 2017, 14:52 
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BOTH wings are only 205lbs? wow...thats incredible


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 Post subject: Re: Piston-Powered Lancair Evolution?
PostPosted: 16 Mar 2017, 18:57 
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Yes, it's a one piece dual spar construction.


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 Post subject: Re: Piston-Powered Lancair Evolution?
PostPosted: 28 Apr 2017, 02:09 
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Location: Lynnwood, WA (KPAE)
Aircraft: 1993 Bonanza A36TN
Video of the new cowling for the piston Evolution. Larger air intakes, carbon plenum, looks like they're serious about improving the cooling to make more power available in the climb. Wonder if it will have cowl flaps.
https://www.facebook.com/evolutionaircr ... 700356053/


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 Post subject: Re: Piston-Powered Lancair Evolution?
PostPosted: 28 Apr 2017, 11:44 
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Location: Austin, TX
Aircraft: Formerly 1982 B36TC
Evolution introduced two new turbine engines to the lineup:

http://www.evolutionaircraft.com/blog/evolution-aircraft-expands-lineup-from-two-to-four-models/

One with a PT6-21 @ 550 HP, and the "Big Dog" with a PT6-140AG, sporting 856 HP. The smaller has a range of 1377nm.


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 Post subject: Re: Piston-Powered Lancair Evolution?
PostPosted: 28 Apr 2017, 14:47 
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Username Protected wrote:
Evolution introduced two new turbine engines to the lineup:

http://www.evolutionaircraft.com/blog/evolution-aircraft-expands-lineup-from-two-to-four-models/

One with a PT6-21 @ 550 HP, and the "Big Dog" with a PT6-140AG, sporting 856 HP. The smaller has a range of 1377nm.

I'm unfamiliar with the PT6-140AG. What is that, an agriculture motor? Wouldn't that not perform as well at higher altitudes since it's designed to fly low?


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 Post subject: Re: Piston-Powered Lancair Evolution?
PostPosted: 28 Apr 2017, 19:26 
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I'm unfamiliar with the PT6-140AG.
Web research this morning says the -140 is the latest and most powerful of the "small" PT6, with a single stage power turbine vs. the two-stage power turbine in "medium" engines like your -42. They improved the compressor with more CFD-designed airfoils and a blisk for one of the axial compressor stages. The torque limit (gearbox) is 867 hp. but thermodynamically it's a 1075 hp. motor. Its only applications to date have been the current Caravan, upgrades to older Caravans and ag planes. Blackhawk offers both -42 and -140 Caravan upgrades but not for much longer, I would think, as the -140 upgrade is more powerful and cheaper, requiring little or no mods to cowling and engine mount. The -140 also is designed for lower operating costs, 5% better SFC than "comparable" engines (whatever that means) and much higher cycle limits so even the ag and skydiver markets doing short flights won't cycle out before timing out.

Besides the lower lifecycle costs, the pitch for ag operators is better hot/high performance. The -140 will of course lose power with altitude but as a percentage of the 1075 hp. thermodynamic rating, not the 867 hp. gearbox limit. I should think it would have more power available than a -42 at any altitude. And of course it is a more modern engine.


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