vortex generators

[floatpilot]

hello all. I have a piper pa-11 and I am thinking of putting a VGs kit on. My question is do they really work? Will they help me off the water? Will I even notice them? I have read a fair amount on these, just wanting to hear from an ame point of view. Thanks.

[twotter]

The airplanes I've put them on seem to perform a fair bit better with them. I have a customer with a homebuilt PA11 and with them the thing performs great!!

[Colonel Sanders]

I like them. They completely transform the 300/400 cessna series.

I wrote this a while back: http://tinyurl.com/7xu5evl

A float plane is all about slow-speed lift, and that's exactly where the
VG's will help - increasing lift at high AOA's.

[floatpilot]

What type do you think is the best? I did lots of reading on subercub.org last night, I am absoultly sold on putting them on. From what I've read, they all seem to have the same performance. I think I'll stear clear of the plastic types even though they sound like they would stand up to the elements. The other thing I need to consider is I need the"stc" to install them to keep me legal. I just have a hard time having to dish up an extra $600 for a piece of paper. I am considering an experimental kit and just putting them on, no stc.

[Colonel Sanders]

I need the"stc" to install them to keep me legal

I shudder to think of the responses below ...

[SeptRepair]

Quite simple really. Just transfer the aircraft into the Owner maintained category and install whatever kit you like.

[twotter]

http://www.microaero.com/CS_PDF/Piper/J ... ade_CS.pdf

These guys do good kits and provide you with a great template to simplify the installation. It takes all the guesswork out of it. Yes, it costs but IMHO well worth the bucks.

[Injun]

Yes, Microdynamics has an excellent product. Have a J-3 and a J-4 with them installed and performance out of the water is stellar compared to not having them. Best bang for the buck. If 700 bucks scares you why do you own a plane? Go ahead and add 25 horsepower and see how much it costs......

Good luck on the curved extrusion as well. Owner Maintenance is destroying a/c values. When I see a PA11 or similar OM or EXP. category for $60K, all I see is a wealthy prick who thinks he knows more than someone qualified and took the only way out of the huge $2500/yr for an annual to ensure it's safety.

Begin........

[brno375]

These would help too, no?

http://supercub.com/aircraft-catalog-ai ... tinfo.html

[Taiser]

I'm building a Zenith and it's about 75% complete. I'm installing the VG's because of all the positive comments I've heard about them. On my build they are suppose to lower the stall speed by about 3-5 mph...not bad and they only cost about 100 bucks!!! Here's a good link about them...

http://www.stolspeed.com/id/1

[Grantmac]

I'm building a Zenith and it's about 75% complete. I'm installing the VG's because of all the positive comments I've heard about them. On my build they are suppose to lower the stall speed by about 3-5 mph...not bad and they only cost about 100 bucks!!! Here's a good link about them...

http://www.stolspeed.com/id/1

Tougher decision when the kit is $1000 and the install will run around $300-500 if you don't want them painted.
However I have yet to speak with any pilot of a fabric Piper that didn't like them. I'm actively considering a set once the bank-account rebounds from the new wing fabric.

-Grant