Citazione:
Originalmente inviato da marco2  Un mvvs 40 pesa sui 1450 g e costa intorno ai 440 euro. dati sulla potenza non ne ho trovati. |
Il peso da te indicato è del solo motore che con iniezione e silenziatore a barilotto (che perde almeno il 15% della potenza dichiarata come dicono i dati sotto riportati dal sito MVVS) dovrebbe arrivare a non meno di 1700gr
Ai 400 devi aggiungere altri 43 per il silenziatore.
MVVS 40 IFS - (2.42 cu inch)
based on the ultra reliable 35I FS, rebored to 38mm, with same main dimensions, but slightly lighter.
bore 38mm
stroke 35mm
measured performance:
4.25 hp using the APC 20x8 prop and 3268 tuned pipe @ 8000 rpm .
Best power: ~4.5 hp at 8500 rpm.
weight 1451 grams without ignition
Ignition weight 160 g
Fuel: petrol,
unleaded 95 octane (US: unleaded premium gas 91 pump octane).
High silicon, molybdenium plated piston with cast iron piston ring, running in a hardened steel liner
Use only: Jaso FC+ or ISO LEGD class two stroke fully synthetic oil. Mix at 1:40 (running in 1:30, during the first few gallons)
Features include:
1. squish ring central hemi combustion chamber
2. Walbro Pumped Carburetor with arrested choke.
3. Needle bearings on upper & lower end of the connecting rod.
4. Huge crankshaft and bearings.
5. Molybdenium coated Ringed Piston.
Engine dimensions Carb setting instructions, click here
This engine is a powerhouse in ultra small package, suitable for narrow fuselages.
MVVS notes:
"
Using compact muffler, a gain of 15% in power compared to the 35cc engine
Propeller 20x8 to 22x 10 for Acrobats and up to 24x10 for Scale Models.
With MVVS tuned pipe and propeller Mejzlik 22x10 we measured 7000 7100 RpM!
"