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  1. J

    VW Conversion: Need electrical coil, armature

    I'm building a VW for my Bensen and need ideas and parts to build a generator that attaches to bell housing end. I can go with belt-driven Kubota type external generator by making a pulley, but prefer the motorcycle-type with a stationary coil mounted to xmission end of engine and rotating...
  2. J

    Behind the power curve

    What will a Bensen style gyro do if the pilot is deliberately flying at near-ground level at very low speed, nose high, behind the power curve, and the engine suddenly quits? I used to do this for practice, but thinking now it would lead to a crash. I doubt that one could safely recover even...
  3. J

    Crack in Rotor Hawk Hub Bar

    During a preflight being performed by a dear friend, a crack was discovered in my 24’ Neal Carnes Rotor Hawk hub bar. The crack was in the hub bar extension at one of the two outer holes to which the rotors are bolted. See attached pictures. The blades had 330 hours on them and had never been...
  4. J

    Old-style Bensen Head w/Rod end brngs

    I have an old style Bensen head that used Alinabal CM6 3/8" rod end bearings to support the torque tube and allow pitch movement. These bearings are each rated at 5100# static load. At a Bensen Days flyin I was not allowed to fly until I bought a modern RFD head. I believe I was told that if I...
  5. J

    Rans S-12 Airail and other FWs for sale

    Four aircraft are too many to own! So I'm keeping my gyro and selling some or all of my fixed wing aircraft. I have for sale a beautiful Rans S-12 Airail, maybe my MaxAir Drifter, and a Starflight TX-1000 single place legal UL. A link to pictures of the Rans (with a pretty model!) is here...
  6. J

    License to Fly a Gyro

    What does it take to get a signoff for gyros added to my Sport Pilot license? There are different opinions about this, so let's stay with known facts. I have 130 hours now, and have been flying with 90-day solo sign-offs. I'd like to get "final." I built my Bensen - some say I don't need any...
  7. J

    My Rotax Coils have Failed

    Flew an hour and rested. My 503 DCDI (no points) would not restart. It seems both ignition coil modules have failed at the same time (I did the CPS Part #58 testing with bad results). Triggers check OK at 60 ohms. There is not enough output to even shock me, so I'm pretty sure I need new coils...
  8. J

    Ron Menzie Parsons Trainer Status

    I was over at Ron's yesterday, trying to find some parts to build a pre-rotator for my Bensen. His Parsons trainer is still down. He lost spark in his CDI. So, I still can't get more training with this very busy CFI. He needs to contact Rick Whittridge for info. Rick, how about giving him a...
  9. J

    Airworthiness Inspection

    The AW cert for my gyro was issued by the FAA in 1969, and had a limitation of one year. The gyro was in storage for 40 years. I've updated the Registration, N3145, and the FAA info site, http://registry.faa.gov/aircraftinquiry/NNumSQL.asp?NNumbertxt=3145&cmndfind.x=0&cmndfind.y=0 shows "Cert'...
  10. J

    Wanted: Rotor Blades

    Sorry to post this way, but I can't get classified to take my post. I need a set of Bensen-style blades to replace the ones I destroyed in my recent rollover. At this point in my search I've just about settled on a new 24' set from Neal Carnes (Falcon Industries). Are these good blades for...
  11. J

    My Rollover

    I soloed my modified Bensen (Neal Carnes drop keel, Frank Lane tail and stabilizer, 503 dcdi) last Thursday. Was well into about 100 hops and flying s-turns close to the runway by Tuesday, when a Citation jet announced a straight in final at six miles. In the excitement of getting out of the way...
  12. J

    Mount 503 Right Side Up?

    In converting my B8M to drop keel with TT and HS I can mount my 503 with short belt drive and 60" Warp Drive prop with the the engine upright or upside down. Which is best? Thrust line will be the same, but I'm not knowledgable about the effect of lower vs higher mass. I havn't found this...
  13. J

    Warp Drive Initial Pitch

    I tried to post this before, but being a newby I guess it didn't get posted. I have a Bensen B8M with conversions. I'm putting on a 503 DCDI with a 60" 3-blade Warp Drive prop. My question is what should be the initial pitch for the prop blades? 10 degrees? I also need an isnition coil and...
  14. J

    B8M Conversion to 503

    New guy here. I have a plans built standard B8M with Mac 72 that I want to convert to Rotax 503 w/belt redrive and Warp 3-blade prop. I will get the engine tomorrow. Where can I get a "kit" of materials and plans, as well as the associated wisdom to do this? I'm sure some of the gyro...
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