Fillon's Wakefield

Last week I ran a Drone diesel.  Today I ran an MVVS 10 cc with a 1/2A R/C carb set up for Texaco.  Cloudy and cool, with high temp: 46 degrees.  No problem as diesels like cool weather.  I got this MVVS 10 cc diesel from Bob Slater after his health was failing.  For a couple years after flying in the SWR SAM contest  at Eloy I would spend some days at Bob's house running diesels.  We also flew models on the Indian reservation close to Bob's house.  Much nicer weather in Arizona in January than here in Northern Illinois.  One year it was the MVVS with a 1/2A carb and adapter for the carb made by Mike Salvador for Bob that we ran on Bob's test stand.  We could get very good engines runs with this set up around 20 minutes at the RPM that would fly a Bomber. 

Today I ran this engine at much higher RPM (4,400 to 4.500) on an 18/12 prop.  Stock Aerodyne diesel fuel.  With this prop, my heavy 9 pound 7 ounce with Laser on a 1600 sq. in. Airborn takes off at 3,100 and cruises at 2,500 to 2,600rpm.  This is due to the high pitch and large diameter of the prop.  At 4,400 RPM, with an 18/12 prop, the big MVVS is rock steady.  At the RPMs Bob was running in Arizona with this engine, it was a bit tricky to get steady runs.  At 4,400 t0 4,500 run times on 28 cc was a bit less than 9 minutes.  A full size Bomber or my 1600 Airborn would probably be out of sight in nine minutes with this set up.

It took me some time yesterday in the garage locating the engine and other hardware to run this engine.  I could not find the clear plastic tubing extension for the muffler to dump the exhaust out the back of the test stand.  Also I could not find the push rod to control the carb with the handle on the test stand.  So, I had to make up a new push rod.  Looking for these items I did find something lost for years.  A brand new MVVS 10 cc with a Davis Diesel head.  See 2nd photo.  I sent the engine with the head bolts loose per Bob Davis to get him to make the head.  Some folks have had a contra piston on the MVVS drop and I wanted this head just in case.  The grass is starting to green up as seen in  the photo

Jack Hiner

1,000 square inch Lanzo Airborn part 3

Guys,

Tom Boice has worked for a number of years with the old O.S. .60 open rocker four stroke glow engine converted to spark ignition for SAM Texaco events.  A number of mods to get 33 minute motor runs on 28 cc of fuel.  Special fuel tank as seen in photo.  Head shim to decrease compression for gasoline fuel.  Remote O.S. .20 four stroke glow engine carb used (see photo below).  Special fuel formula and probably other mods I am not aware of.  I can verify the 33 minute motor runs as Tom let me fly his 1600 sq. in. Bomber in Texaco last year at 3 SAM contests in the Mid-West.  Three contests and three 1st place in Texaco with Tom's big Bomber.

At the last of these three SAM contests at Fort Wayne, Indiana Chuck Hutton offered me his old O.S. .60 open rocker four stroke glow converted to spark for Texaco.  I accepted Chuck's offer and he mailed it to me after the contest.  I cleaned it up and sent it to Tom with two spark plugs and two ignition modules.  Spark plugs may not be the brand that Tom uses.  Tom said it looked new until he checked it out and could see it had been run a lot with carbon on exhaust valve.  Tom said it is a very good engine and he did his mods and gets 33 minutes with a 18/10 prop turning 2,500 RPM.  With that prop that is all the RPM you need for a regular size Bomber.

Jack Hiner

Covering with Polyspan

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