lml@lancaironline.net Mailing List Archive

I really appreciate your response to my question. Your overall responses were quite consistent and not what I would have expected. In essence, the way I interpret your responses is: If you fly in areas of freezing levels, no matter how hard you try to avoid icing, You Will Encounter It. The good part is that, IF the engine, prop and static ports can continue to operate, the airplane has the ability to function with rime icing long enough to get down or up through or away from it. The least important priority of fixes to the airplane is wing and horizontal de-icing.

The IV P I am building will have an Aero Composite prop so it may work like the MT prop, in that it doesn't ice up as much as an aluminum prop. Aero Composite Corp. is , as I understand it, working towards getting some sort of anti-icing capability. The engine is another issue but I believe that it is far less involved to get it to be reliable under icing conditions as putting anti-icing on the wings and horizontal stab. I already have alternate static air built in.

To me, there is nothing more valuable than to hear from those with first hand experience. That is what you have given us - true nuts and bolts information. If you, or anyone else, have any further comments - please come forth.

Thank you very much,

Scott Turner

----- Original Message -----

From: Scott Turner

To: Lancair Mailing List

Sent: Wednesday, November 26, 2003 4:26 PM

Subject: [LML] De-ice System on IV P

I am pondering whether to install a de-icing system on the IV P I am building. Relatively recently Ice Management Systems de-icing system became available. It seems to be a good approach, in that it draws a reasonable amount of DC power, requires no consumable fluids and does not add a substantial amount of weight to the aircraft.

I am building my IV P to be a traveling aircraft. I have no intentions to encounter known

icing but rather consider having such a system as a safeguard in the event that rime ice

builds from, for example, descending through a cloud layer for an approach. In that the

IV P utilizes laminar flow, as I understand it, a small amount of ice could become a

substantial hazard. I am a near 700-hour pilot and have never encountered icing but also

never got much into winter cross-country flying.

For those of you who are veterans of winter cross-country flying – is installing such a system something that should be seriously considered?

Your comments would be most welcome regarding this subject.

95% done with about 6 months to go!

Thanks, Scott Turner