TKS de-ice - Effect on Cruise Speeds & Payload?

[GeorgePerry]

Interested in knowing how much or if cruise speeds are adversely effected when a Mooney has the TKS de-ice system?  Also how much wieght is associated with the system and it's impact on useful load?

[N513ZM]

6-10kts

92lbs full

37 empty

dont ask me why anyone would fly with it empty

impact on useful load depends on how much you had to start with

[Jeff_S]

I suppose someone might fly with it empty in the summertime!

[GeorgePerry]

Quote: N513ZM

6-10kts

92lbs full

37 empty

dont ask me why anyone would fly with it empty

impact on useful load depends on how much you had to start with

[N513ZM]

Quote: Jeff_S

I suppose someone might fly with it empty in the summertime!

[N513ZM]

Quote: GeorgePerry

I've seen a few J's with TKS.  Don't understand why anyone would give up the speed for the de-ice capability.  But I suppose the winters are alot longer up north.

[GeorgePerry]

If your like me and most of your flying is in the south then TKS is just a boat anchor.  Thanks for the info.

[Parker_Woodruff]

I would take TKS if it made my plane FIKI and I live in Texas.  The only times (except for a compass leak one time) that I've cancelled trips have been due to ice...I count about 6 canx last year.  If it's low IFR, I'm going.  If it's ice, I'm not.

Note, one trip was to Kansas, 2 were Oklahoma, and another to New Mexico.

[GeorgePerry]

Quote: Parker_Woodruff

I would take TKS if it made my plane FIKI and I live in Texas.  The only times (except for a compass leak one time) that I've cancelled trips have been due to ice...I count about 6 canx last year.  If it's low IFR, I'm going.  If it's ice, I'm not.

Note, one trip was to Kansas, 2 were Oklahoma, and another to New Mexico.

[jlunseth]

I am going to be looking for a turbo TKS plane in the next couple of years.  Living where I live (Minnesota) it makes the difference between going and not going for quite a long stretch during the winter.  It also frequently results in a speed gain.  The way that works, is that I have to fly under the deck if the clouds are full of ice, and the plane is slow down there.  If I can get through the deck and up in turbo territory, the gain in CAS is very substantial. 

[thinwing]

bingo!!!!

[Jeff_S]

Quote: N513ZM

you can get ice in the summer - ask me how I know.

also - you have to run this system at least once a month (preferrably more often) to keep the panels "wetted" - if the membrane inside dries out you will end up with dead spots on panels - expensive to fix and dangerous in icing. Ask me how I know.

[DaV8or]

In other TKS news, my friend Tom, who attended the AOPA Summit with me won the TKS desk lamp raffle! He got the lamp in the mail yesterday. For those that didn't go to the show, TKS makes up these desk lamps to demonstrate the tiny little holes in the wing leading edge by taking a section of the TKS wing leading edge and putting a floresent lamp behind it. It is then attached to a goose neck that goes down to a Continental valve cover as a base. At the end of each show they do, they raffle the lamp off and build another for the next show. I'll try to get him to send me a picture.

[N513ZM]

Quote: DaV8or

In other TKS news, my friend Tom, who attended the AOPA Summit with me won the TKS desk lamp raffle! He got the lamp in the mail yesterday. For those that didn't go to the show, TKS makes up these desk lamps to demonstrate the tiny little holes in the wing leading edge by taking a section of the TKS wing leading edge and putting a floresent lamp behind it. It is then attached to a goose neck that goes down to a Continental valve cover as a base. At the end of each show they do, they raffle the lamp off and build another for the next show. I'll try to get him to send me a picture.