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  1. Chucker

    New Cooling Concept

    Here is a link to my project page with a new idea for cooling. https://www.sonerai.net/threads/chuckers-sonerai-ii-minus.4109/page-4
  2. Chucker

    The Mystery of Cg

    I see many posts where the builder is concerned about a modification's impact on Cg... and rightfully so! Jumping into the air with the Cg out of limits could be catastrophic. At best, you could be in for a wild ride! But there really is no mystery to your Cg or the impact your anticipated...
  3. Chucker

    Dual electronic ignition on single module

    The normal electronic ignition system most of us use (HAPI/GPASC) has a hall effect ignition module that operates two dual-fire coils timed 180 degrees apart. The coils have 3 ohms of primary resistance. My project engine has this fixed-timing secondary ignition in conjunction with a Slick...
  4. Chucker

    Ignition coils with primary windings in series

    The normal electronic ignition system most of us use (GPASC) has a hall effect ignition module that operates two dual-fire coils timed 180 degrees apart. The coils have 3 ohms of primary resistance. My project engine has this fixed-timing secondary ignition in conjunction with a Slick magneto...
  5. Chucker

    N136DE (Sonerai II LTS) is for Sale

    $9500 Easy conversion between conventional and tricycle Revmaster 2100D with 30 hours (TSN but overhauled due to storage) Hand prop Electric elevator trim Handheld Yaesu radio with external antenna MATCO brakes w/ parking brake Located at KPRC (Prescott, Arizona)
  6. Chucker

    Engine out data points

    Been dying to ask these questions since the beginning.... Does anyone have data points for an engine failure? The questions I have are: 1. At what speed will the prop stop turning? 2. At what speed will the prop start turning again? 3. How much altitude does it take to get from one to the...
  7. Chucker

    Engine Weight: VW versus Jabiru

    We all know that the aluminum VW engine case is about 24 pounds heavier than the magnesium case. The Jabiru uses the heavier aluminum. They both use iron barrels and aluminum heads. So why is a full-up Jabiru engine 25 pounds lighter than a similarly equipped VW? Where do they save 25 pounds...
  8. Chucker

    Monnett Electro-X Accessory Mount For Sale

    Comes with Electro-X mount, good rubber bushings, stator, rotor, and regulator. Make offer.
  9. Chucker

    Revmaster Intake Manifold For Sale

    Make offer on all three pieces. The only modification has been the removal of a flat piece of sheet steel that was welded to the bottom "U" portion of the manifold. Otherwise, it is the stock component from a 2100-D.
  10. Chucker

    Adequate Cooling

    I've been waiting for summer weather before finalizing the cooling exit ducts. Today it was 90 degrees on deck departing from a 5,000' MSL airport. At full power and 80 mph I got up to 419 degrees on the CHT and 215 degrees oil temperature. I then accelerated to 100 mph (still climbing at...
  11. Chucker

    Airborne Dry Air Pump 211 cc

    I have the pump, mount, and belt. It fits the Revmaster 2100-D. Anybody interested?
  12. Chucker

    H.A.P.I.

    Does anyone have any history on H.A.P.I. engines or the company that built them? I have an 1835 HAPI engine (built in Feb. 1983) that I bought 5 years ago just because I wanted the accessory case. HAPI used the Continental mounting system and that is exactly what my project airframe was...
  13. Chucker

    Converting Military Helmet

    Cheap scrounger that I am.... I am attempting to install the guts of an old headset and boom mic into my old Navy helmet. The old headset had volume controls on both ears. I am leaving that part out. I hardwired the speakers in mono to the black and green wires. The sound portion works...
  14. Chucker

    Taper Pin

    My EAA counselor did not like the fact that my taper pins were not safetied on both sides of the spar....so I started thinking. I also wanted an arrangement that would work with minimum tools. What I built uses a 2-inch extension on the threaded end of the taper pin. I have 3-inch springs...
  15. Chucker

    Aircraft Data Plate

    My aircraft data plate indicates that the aircraft has a Continental engine that produces 80 HP. It also specifies the empty and maximum weights of the aircraft. The maximum weight did not change but the remainder of that information is no longer correct. It now sports a Revmaster engine and...
  16. Chucker

    Magneto Box

    I made a magneto box from a stainless steel mixing bowl. The bowl is cut in half so that I can get to the magneto without pulling the engine. The two halves are joined with a 1/8" silicone seal and held together by three springs. Any concerns?
  17. Chucker

    Oil Temperature

    I am getting ready to move my Revmaster from my single-seat project to Dave Wilcox's bird...N136DE. I did a ground run to clean out and lube the engine and to warm the oil for draining. I'll provide a link to the video below but here are some of the numbers... I ran it between 3000 and 3400...
  18. Chucker

    Museum Find

    Here are a couple of Mid-Wing Sonerai II's I discovered at the San Diego Air and Space Museum Annex located at Gillespie Field. If you get a chance to visit...don't pass it up. The best part is wandering around their shop and looking at what they are doing behind the curtains. I ran into...
  19. Chucker

    VW Conversion Website

    I have not seen this site before.....pretty detailed and comprehensive. http://vwengineconversion.com
  20. Chucker

    Corrosion on Horizontal Stab Spar

    I am doing the annual inspection on N136DE (Dave Wilcox's machine) and discovered rust and minor pitting on the horizontal stab spar. I am cleaning and prepping the spar for fresh paint. I'm checking with all of you to see if you have any recommendations for preventing further corrosion in...
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