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  1. Hugh Lorimer

    Propeller design question - Efficiency

    How is this? home designed ,home made for microlight. Hughie.
  2. Hugh Lorimer

    Tails. Pros and Cons

    All flying canard used on my Iolaire required advance tabs to give control "feel" and hands off cruise. Hughie
  3. Hugh Lorimer

    Interesting Aircraft

    Aeronautical Oddities Part 1 of 2 - YouTube Hughie
  4. Hugh Lorimer

    Discussion Thread: The design of a tailless flying wing

    Mike, any idea where? when? for first test?.of your wee "plank"......Hughie.
  5. Hugh Lorimer

    Low wing pusher configuration?

    Low wings can have problems with ground effect when landing, compresability can have an effect up to half span. Rear mounted motors need clearence (prop) when rotating, so be mounted higher then the thrust line must be directed to the CG to avoid neg. pitching?................Hughie.
  6. Hugh Lorimer

    How many of you guys fly RC Planes too?

    Not R.C. Cippola powered F.A.I Team Racer from 20 years ago. Best race time 3min 36sec...................Hughie
  7. Hugh Lorimer

    Composite ultralight question / thought

    I used this technique on three of my projects because I was on my own, all tested to BCAR Sect S. See Hugh's Flying Projects and photobucket handr2. Hughie.
  8. Hugh Lorimer

    Countersinking Lexan

    Try a negative angle (approx -4°) drill as sharpened for brass. Hughie.
  9. Hugh Lorimer

    Spar cap wing profile

    With built up spars taper is easy, and makes for a good fitting smooth joint. Also wooden spar caps (shaped) keep profile. Hughie.
  10. Hugh Lorimer

    Why Aren't There More Moldless Composite Planes?

    Some examples of mouldless composite light A/C. Tested to +6,-4g. The foam was EXTRUDED polystyrene.
  11. Hugh Lorimer

    Show us your homemade canopy skills

    Lexan 1.5 mm thick bent and a frame from 12 mm dia. alum. pop rivited on, side hinged. Double locked. Hughie
  12. Hugh Lorimer

    Power needed for a slippy UL to maintain level flight

    An early approximation of power requirement for an UL based on a BGR of 12:1 to 16:1 @ 40 mph, Hughie.
  13. Hugh Lorimer

    Incorporating shock absorber into spring only landing gear

    I used this type of u/c on my Iolaire main u/c Hughie.
  14. Hugh Lorimer

    Manual retractable landing gear designs

    Here is a dummy retracting nosewheel mock up I toyed with for a microlight...over centre, spring assisted locking knee Hughie............
  15. Hugh Lorimer

    How many of you have built or are currently building/designing a FULL SIZE HBA?

    Due to medical condition, toying with ground effect single seat machine. still at design (models) stage......Hughie.
  16. Hugh Lorimer

    Discussion Thread: The design of a tailless flying wing

    The strakes (as I call them) have four functions 1...strengthens cockpit sides without narrowing pilot room. 2...extends pitch platform , fitted at +1.5 deg AoA...,3...saves damage to "bits and pieces" on entry and exit !!!! 4.. a talking point??...stiffens canopy hinge anchor.............Hughie.
  17. Hugh Lorimer

    NACA 23015 or equivalent

    I used naca 23012 on my Sgian Dubh due to its near neutral pitching moment and has the centre section stretched to 23009 with reflex using the ramp effect to give an overall slight +cm................Hughie.
  18. Hugh Lorimer

    Wooden prop plans

    Here are a couple of photos of my home made prop for a BMW R100RS See also photobucket handr2 Iolaire Hughie or maybe and BMW boxer. I have found some scanned plans, but without any further information (strength calculations, build manual, safety report) I have knowledge...
  19. Hugh Lorimer

    Discussion Thread: The design of a tailless flying wing

    Out only rudders separate pedals can be deflected at the same time to act as an air brake for landing. Deflection drag x distance to CG is more effective if other rudder is straight . Hughie.
  20. Hugh Lorimer

    Discussion Thread: The design of a tailless flying wing

    Here is my attempt at a flying wing...........Hughie
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