He, he... Počni da skupljš lovu, to će ti biti verovatno jedno od skupljih gletovanja...
U zadnje vreme mnogo se spominju novi radijalni motori koji su se pojavili na tržištu. Reč je o motorima Evolution. Motori se prave u Indiji, i to su bivši Seidel motori. Doduše, dok su bili pod ovim brendom travili su se samo u glow varijanti i manjim zapreminama.
Prvi se na tržištu pojavio Evolution 260, sedmocilindrični, radijalni, četvorotaktni benzinac.
Medju prvima koji su imali i probali ovaj motor bio je moj prijatelj Steve Thomas, vlasnik Bob's Hobby Center u Orlandu. Da vam ne bih sad prepričavao impresije i kako radi evo link ka topicu o ovom motoru, a ima i you tubića kako radi...
http://www.rcuniverse.com/forum/m_10728070/tm.htmZa razliku od Mokija, koji sem prevelike cene, imaju i dosta "bubica" (pregrevaju se, odvrćumatice od auspuha, na svaka dva sata rada se šteluju ventili, rade mnogo bolje sa električnom pumpom i turbulatorom, delovima koji se kupuju naknadno...), Evolution radi mnogo dobro. Evo šta mi je Steve napisao:
Hi Mirce,
I really like the engine and it performs very well. I have used it alot and have had no issues whatsoever with it. It starts very easily and is very easy to operate. I ran it yesterday after a 6 week layoff and it started 2nd flick and settled into its beat straightaway.
There is little maintenance on it apart from oiling the rockers. I have adjusted the valves once since getting the engine and I guess it is about time to recheck them again as the engine is now run in.I have only tightened the muffler nuts once and they seem to hold very well in comparison with the Moki
The great thing with the engine is how consistent it runs. The engine temps are very similar and it runs significantly cooler than the Moki. We have video of us holding the cylinder heads while the engine is running. The throttle response is excellent even with the 34x18 three blader I am running at the moment. I recently took all the plugs out to check the color and all are consistent.
I particularly like the fact that you do not need any other piece of kit to make it work - you do not need a pump or a turbulator and the price is very sensible.
The only negative I have is the physical size of the engine. You need a fairly large airframe for the 260cc and there are not that many cowled airframes that will take it at the moment although it would be great for a Stearman etc. The silencer ring is very effective and is smaller than the diameter of the engine. In future the silencer ring will be made smaller I understand which will make installation a little easier
Overall I much prefer it to the Moki and with 2 more cylinders the sound is impressive.
I do not know much about the 160cc but will definitely be getting one once they are available
Let me know if I can help further
Steve
Ne rekoh najlepšu stvar, Evolution 260 je 1000$ jeftiniji od Mokija 250!!!
Početkom februara treba da se pojavi se Evolution 160, moto istre koncepcije kao 260-tica ali manje zapremine.
Učinilo mi se da bi ovakav motor bio dobra opcija za Meisterovog Thunderbolata. Malo sam se raspitivao, razmenjivao mailove i na kraju saznao tužnu vest, prečnik motora je prevelik da bi stao pod kapotaž od P 47... Motor je 11" ili 280 mm, a kapotaž je..
Moki 150 staje jer je 255 mm...
Sve u svemu, eto mene opet kod MVVS 80 GX. No i tu ima interesantnih stvari.
Gledajući moj topic o P 47 na RC Universu, javio mi se jedan Belgijanac koji je počeo sa proizvodnjom reduktora za MVVS motore. Za MVVS 45 je već napravljen i proban, a za 80 se trenutno testira.
Evo šta mi je napisao:
Mirce,
We are testing this month with the MVVS 80.
John just installed a brand new cnc machine.
As soon as we progress I will keep ya posted.
For the moment we are finalising all tests but we need all the engines we can lay our hands on ore borrow
... We test for Da DLE MVVSKolm Engines ZDZ, also we are gooing to develop scale stuf in that field for radial engines......this will be a surprise!
Every engine needs to be a reduction made and tested so plans made cad cam etc it is a very fine but a complex time consuming work. Especialy when I am in Europe and John in US you know the feeling isn't it, since you are in contact with so many guys over there !
The goal of our firm is to make reductions to swing scale props at a very affordable price for every modeller who makes big scale birds....
Our idea came from the fact that everybody is spending so much money and time to build a perfect scale bird but has to put a non scale prop for flight ...
There where in the past a couple of guys who have build reductions but or very high price or for one type of engine...
The price : I can not say yet since for that we have to finish the complete MVVS range and I will be in the US but that is very near future. As soon as I have the concrete info I will publish it on the market and to you. Hereby some more pics and please stay in contact.
- configured as a "bolt-on" reduction.... no modifications to his engine so the customer could add or subtract at will. No cutting or drilling of the engine parts at all!!
- all engines of one brand ( zdz dle da mvvs etc) will be very similar in design to each other but not universal to any other brand engine.
- 2,3, or 4 blade propeller gear ratios per engine size.
- all CNC cut, T6-6061 Aircraft aluminum construction
- Gates belts
- affordable design so every one can enjoy!
The video is of the 45cc last test stand run before the install into the Yellow P-40. This configuration is turning a Solo prop 24"-19 with a 1.66-1 ratio at 4100 rpm. The motor and reduction(no prop) weighed 5.4lbs ready for install.
Eto... Reduktor pruža mogućnost da se stavi prilično veća elisa ili propeler sa više krakova, što doprinosi boljem iskorišćenju motora i performansama modela. Pošto je sada skoro 100% sigurno da će na Meistera ići MVVS 80. možda "padne" reduktor, naravno, pod uslovom da cene ne bude neka "giga - mega"...
Pozdrav
Mirče
