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Post by MarkGregor on Sept 24, 2016 16:32:09 GMT
It all depends on how cold it actually is. The most I have ever blocked off is 50% but is was below 0 F.
Be very careful to watch oil and coolant temps on climb out. It can easily overheat if you block too much off.
We do the basically same thing with air cooled engines by blocking the cowl inlets with tarp tape. But again too much can easily overheat the engine.
Likely the most damage ever done to my cirrus was by a cirrus CSIP who knew how much tape to put on and overheated my engine. I tied to tell him it was too much before we took off.
Be careful!
Mark
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Post by MarkGregor on Sept 24, 2016 16:35:38 GMT
Also be careful to not overheat if you travel from colder to warmer areas.
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Post by Flocker on Nov 2, 2016 15:09:01 GMT
What about engine pre-heaters? Does anyone use one and if so which one?
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Post by MarkGregor on Nov 5, 2016 3:01:24 GMT
Tanis is the best design for the Rotax.
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Post by Flocker on Nov 7, 2016 12:35:59 GMT
Tanis is the best design for the Rotax. Do we need a LOA to install? |
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Post by ChrisConnor on Dec 3, 2016 19:22:16 GMT
 I also run this homemade heater that I built about 6 years ago for my Aeronca 11AC. Works great on the P92 too. I offset the heater location, via the metal duct, to keep the heat source out from under the aircraft. It cost me <$30USD to make, using a ceramic unit for the heat source. I run it on an appliance timer, and set it to come on about an hour before I want to roll it out of the hangar. I also put the cowl plugs in, and lay a packing blanket over the top cowl when it's really cold. It seriously helps with starting and warm-up times. |
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Post by MarkGregor on Dec 4, 2016 2:01:49 GMT
Flocker,
My opinion is you do not need an LOA although it would be reasonably easy to get.
There is no requirement from the factory to get LOAs. The requirement comes from LSA rules. The factory does not require them and in fact if you do not ask they will be happy to spend their time accomplishing other tasks. The fee they charge is not a big money maker for them either.
The reason to get the LOA is for the owners benefit and compliance of LSA rules. It also insures that the modification is safe and has the approval of the factory.
When it comes time to resell the aircraft a potential purchaser can inspect the aircraft and if it has any modifications they will have the assurance that the factory authorized it. This can affect the resale value.
If you sell your plane with a properly installed high quality engine preheater will it matter to the next buyer if you have an LOA for it?
Probably not but it won't hurt.
The takeaway is any equipment change or modification should be accompanied by an LOA.
I should also add that LSA rules say you cannot change ANY part that did not come from the as factory as original equipment. For example to be 100% legal you cannot change the brand of inner tubes installed in your tires. What if you cannot find the same inner tube originally installed in your airplane? Legally you need to get an LOA to change it. This is an extreme example but it is how the rules were written. My suggestion? Use common sense. If you have questions contact Tecnam.
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Post by Cluemeister on Dec 14, 2016 2:20:28 GMT
Does anyone have any experience with the Tecnam cabin heaters? On the P2008, I have a setting for just feet, or defog/defrost and feet. The settings seem to work ok, but I haven't flown in really cold weather. Coldest was about 40 degrees.  |
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Post by MarkGregor on Dec 14, 2016 18:42:16 GMT
In the defrost position there are tiny electronics fans in the scat tubes that are activated.
That is the only difference between the settings.
The heater is much more effective if the engine is running in the operating zone.
Mark need to tape off part of the radiators to get good cabin heat.
Mark
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Post by MarkGregor on Dec 14, 2016 18:44:17 GMT
Should have said " in the scat tubes that run to the defrost air outlets "
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Post by Flocker on Dec 15, 2016 0:40:23 GMT
Does anyone have any experience with the Tecnam cabin heaters? On the P2008, I have a setting for just feet, or defog/defrost and feet. The settings seem to work ok, but I haven't flown in really cold weather. Coldest was about 40 degrees. Mine works very well. Defrost function is nice on a cold day! |
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Post by jetcat3 on Dec 15, 2016 0:43:38 GMT
Yeah, my Dad and I can attest. Even when it's 20 degrees outside, you'll start to get hot and have to shed layers. They work great indeed!
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Post by Flocker on Dec 24, 2016 21:43:53 GMT
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Post by Cluemeister on Dec 25, 2016 1:57:38 GMT
I like the fact that it comes on at 60 degrees and shuts off at 70 degrees. Close as you'll get to a heated hangar!
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Post by Glenn on Dec 25, 2016 15:59:29 GMT
It seems there is no way to adjust the heat output. It's either on or off. Or am I missing something?
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