TMMY Scale Composites 35% scale Cessna
#1828
Join Date: Jul 2007
Location: Frederick, MD
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Dear Scottkieper, It takes 3 months to build these planes, incl individual painting. The result is a unique plane. Are there things to improve? Yes. Was my plane without mistakes? No. It took me another 5 months to build the rest of the plane like I want it to be. I choose the airfreight in sted of seafreight. Incl handling it is a 2500 euro extra. But these things you know when you start this kind of projects. The result is a nice and extraordinary plane on the flyingfield. A skymaster is also nice, but not one of kind.
Greatings
Greatings
#1831
Join Date: Aug 2016
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#1833
Join Date: Jul 2007
Location: Frederick, MD
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That's one feature I have always wanted to mod on my next Cessna 182. I really don't know what its use is for but all the same looks cool. If you can share the inner design on here it will be greatly appreciated.. Awesome job!!
#1834
My Feedback: (7)
We use cowl flaps on the 182 for adjusting the Cylinder Head Temps during certain phases of flight. I open the cowl flaps during pretakeoff run up and leave them open until a couple of minutes after I've reached level off. By closing them, your CHT'S will climb so you need all the air going through the cowl while taxiing and climbing.
it adds 3-4kts to your cruise speed by keeping them closed so the mechanical adjustment is worthwhile. Plus, you want to keep them close during descent so you don't "shock cool" the cylinders coming down. Too much temp change during descent can possibly hurt them. It's a point of contention with full scale pilots but hard to ignore.
hope this helps
John
#1835
Join Date: Aug 2016
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Hello, it is a autonoom working arduino, that measures the 2 engine cylinders temp., powered with the same source (BEC) of the Powerbox sparkswich. There are 3 setups: 1= Always open, 2= automatic , 3= 5seconds for 100% closed position.
A swich gives me the choice between option 1 or 2.
position 1 is simpel: Always 100% open.
position 2= automatic function: cowl flaps are closed with a cold engine. At >40°C engine temp, they start with opening. At >65°C the flaps are 100% open.
option 3: if the engine is cut off, and it is a very warm and Sunny day, the cowl flaps will close slowely like the engine temperature drpps slowely. If for any reason, I need to close the cowl flaps urgently, I can press a button so the cowl flaps will close for 5 seconds. Once the BEC is swiched of, the cowl flaps stay closed. If the BEC is not shut off, after 5 seconds, the auto.function will resume and the cowl flaps take their position in order of the engine temp. (expl: 50°C is +/- 50% open cowl flaps)
WHY ?? First reason is that the engine will be much faster "warm". I have seen (twice !) a 3W engine stall after a takeoff when towing gliders . The time between cold start, 2 seconds checking on full trotle, and then departure with a glider behind the towplane, was to much for the engine, and it stopped after 10 seconds full power and hanging 5 meter in the air..... Second reason: Those opend cowl flaps are not so pretty to look at, but you need them anyway... Third reason: It is soo cooolll
It is possible to adjust the opening temperature, and the maximum temp for the 100% open position. If one of the sensors breaks of, the cowl flaps are 100% opened. The hottest sensor rules.
I hope you can understand my explanation. My apology for the poor english...
A swich gives me the choice between option 1 or 2.
position 1 is simpel: Always 100% open.
position 2= automatic function: cowl flaps are closed with a cold engine. At >40°C engine temp, they start with opening. At >65°C the flaps are 100% open.
option 3: if the engine is cut off, and it is a very warm and Sunny day, the cowl flaps will close slowely like the engine temperature drpps slowely. If for any reason, I need to close the cowl flaps urgently, I can press a button so the cowl flaps will close for 5 seconds. Once the BEC is swiched of, the cowl flaps stay closed. If the BEC is not shut off, after 5 seconds, the auto.function will resume and the cowl flaps take their position in order of the engine temp. (expl: 50°C is +/- 50% open cowl flaps)
WHY ?? First reason is that the engine will be much faster "warm". I have seen (twice !) a 3W engine stall after a takeoff when towing gliders . The time between cold start, 2 seconds checking on full trotle, and then departure with a glider behind the towplane, was to much for the engine, and it stopped after 10 seconds full power and hanging 5 meter in the air..... Second reason: Those opend cowl flaps are not so pretty to look at, but you need them anyway... Third reason: It is soo cooolll
It is possible to adjust the opening temperature, and the maximum temp for the 100% open position. If one of the sensors breaks of, the cowl flaps are 100% opened. The hottest sensor rules.
I hope you can understand my explanation. My apology for the poor english...
#1836
Join Date: Jul 2007
Location: Frederick, MD
Posts: 615
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Hello, it is a autonoom working arduino, that measures the 2 engine cylinders temp., powered with the same source (BEC) of the Powerbox sparkswich. There are 3 setups: 1= Always open, 2= automatic , 3= 5seconds for 100% closed position.
A swich gives me the choice between option 1 or 2.
position 1 is simpel: Always 100% open.
position 2= automatic function: cowl flaps are closed with a cold engine. At >40°C engine temp, they start with opening. At >65°C the flaps are 100% open.
option 3: if the engine is cut off, and it is a very warm and Sunny day, the cowl flaps will close slowely like the engine temperature drpps slowely. If for any reason, I need to close the cowl flaps urgently, I can press a button so the cowl flaps will close for 5 seconds. Once the BEC is swiched of, the cowl flaps stay closed. If the BEC is not shut off, after 5 seconds, the auto.function will resume and the cowl flaps take their position in order of the engine temp. (expl: 50°C is +/- 50% open cowl flaps)
WHY ?? First reason is that the engine will be much faster "warm". I have seen (twice !) a 3W engine stall after a takeoff when towing gliders . The time between cold start, 2 seconds checking on full trotle, and then departure with a glider behind the towplane, was to much for the engine, and it stopped after 10 seconds full power and hanging 5 meter in the air..... Second reason: Those opend cowl flaps are not so pretty to look at, but you need them anyway... Third reason: It is soo cooolll
It is possible to adjust the opening temperature, and the maximum temp for the 100% open position. If one of the sensors breaks of, the cowl flaps are 100% opened. The hottest sensor rules.
I hope you can understand my explanation. My apology for the poor english...
A swich gives me the choice between option 1 or 2.
position 1 is simpel: Always 100% open.
position 2= automatic function: cowl flaps are closed with a cold engine. At >40°C engine temp, they start with opening. At >65°C the flaps are 100% open.
option 3: if the engine is cut off, and it is a very warm and Sunny day, the cowl flaps will close slowely like the engine temperature drpps slowely. If for any reason, I need to close the cowl flaps urgently, I can press a button so the cowl flaps will close for 5 seconds. Once the BEC is swiched of, the cowl flaps stay closed. If the BEC is not shut off, after 5 seconds, the auto.function will resume and the cowl flaps take their position in order of the engine temp. (expl: 50°C is +/- 50% open cowl flaps)
WHY ?? First reason is that the engine will be much faster "warm". I have seen (twice !) a 3W engine stall after a takeoff when towing gliders . The time between cold start, 2 seconds checking on full trotle, and then departure with a glider behind the towplane, was to much for the engine, and it stopped after 10 seconds full power and hanging 5 meter in the air..... Second reason: Those opend cowl flaps are not so pretty to look at, but you need them anyway... Third reason: It is soo cooolll
It is possible to adjust the opening temperature, and the maximum temp for the 100% open position. If one of the sensors breaks of, the cowl flaps are 100% opened. The hottest sensor rules.
I hope you can understand my explanation. My apology for the poor english...
#1838
Join Date: Aug 2016
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5the one ???!!
#1840
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#1844
Join Date: Jan 2017
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Cessna182
I put the nose wheel slightly high due to a use a bigger engine DLE 170 and a 32/10 prop just to make sure it clear the ground. Also when it start rolling it goes down. And with the weight I still had to use 5 pounds of weight to balance it
#1845
Join Date: Aug 2016
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Hello Zack,
I'me using a 3blade 31x13 . Plenty of space left.
This high angle during take-off makes it very difficult to land. Plane starts to jump ->more stress on the nose wheel -> soon failure of the nose wheel.
I'me trying to place a picture here, but somehow it doesn't work.
I'me using a 3blade 31x13 . Plenty of space left.
This high angle during take-off makes it very difficult to land. Plane starts to jump ->more stress on the nose wheel -> soon failure of the nose wheel.
I'me trying to place a picture here, but somehow it doesn't work.
#1850
Join Date: Feb 2012
Location: Krasnoyarsk, Siberia, RUSSIA
Posts: 37
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I'm selling an airplane model Cessna-182 (4 m), the Tommy factory from Thailand.
History of the model - www.rccontrol.ru ? ???????? ???? - 4-? ???????? Cessna-182 (35%) ??? ? ???????????!!!
Location - Krasnodar, Russia. The price is $ 2500 + shipping.
History of the model - www.rccontrol.ru ? ???????? ???? - 4-? ???????? Cessna-182 (35%) ??? ? ???????????!!!
Location - Krasnodar, Russia. The price is $ 2500 + shipping.