Search results

Homebuilt Aircraft & Kit Plane Forum

Help Support Homebuilt Aircraft & Kit Plane Forum:

  1. P

    Conversation with Battery Designer

    Anyone who reads my posts knows I am extremely opposed to BEVs in aviation. There is simply no known or even imagined technology that can give sufficient energy density to meet aviation needs outside of extremely short duration/low payload missions. On top of that, the current infatuation...
  2. P

    Adam 500

    We were watching an episode of Mayday/Air Crash Investigation/Air Disasters yesterday and in the background of the hangar being used for filming was the one and only Adam 500. I read some Wiki and other stories on line, but now curious about the actual design of the airplane. Sounds as if the...
  3. P

    (xx prop governors?

    I was reading a 912 iS installation manual as a result of a question about variable speed props on 912/14 engines. I expect the 914 will attract such a desire regularly, and 912 only rarely - and that such a need would be met by electrically controlled props. Looks as if you can have the...
  4. P

    Ion Thrusters....not kidding!

    I have heard of it of course for room air fans from the rather famous Dyson company and always wondered just how efficient it was. Well, turns out it can be built to a level that will not only fly, but carry cargo. Would love to see the energy in vs. energy out numbers! The Thomas Net...
  5. P

    Clean Sheet Design Discussion

    This was forwarded to me by a good friend who is involved in this very question. There has been a lot of discussion about auto vs aircraft vs. certified aircraft engines of late, so I thought the topic deserves to be off on its own: I enjoy 99% of what Bertorelli produces and agree with 90%...
  6. P

    Appropriate Aviation Quotations

    Hope this will post and display....thought it more appropriate and definitely amusing = well, linkey no workie, so this quote was accredited to Igor Sikorski: "At that time (1909) the chief engineer was almost always the chief test pilot as well. That had the fortunate result of eliminating...
  7. P

    mechanical harmonics

    Some of you may have noticed we have a rather experienced NVH guy on this site (i.e. Billski) and you might notice I get particularly curious when the issue of re-drives is brought up - mainly due to concerns over how thorough a design may have calculated, tested and PROVEN behaviour in that...
  8. P

    AC 624 Crash Survivor

    I have been on a competitor's worksite for last few weeks working with another contractor to try to assemble a few million dollars worth of pure garbage (a topic for another time - globalized outsourced equipment). My "day job" client is so busy now, we have had to reach out to find experienced...
  9. P

    Missfueling a modern ECU controlled engine

    Those who have stumbled upon my posts and rambling replies know that I no longer like SI and gasoline fueled engines. Reality is: every once in a while I have to drive one, and this week has been one occasion. A competitor to my "day job" customer got into trouble with a project and had to...
  10. P

    New Amphib VTOL Jet Concept

    Yeah, out of the average E/AB budget range and WAAAYYYY out of my wildest dreams, but very interesting concept none-the-less...
  11. P

    Auction Action

    Is is permissible to gloat on HBA? 37 years ago I bought a Taiwanese 13 x 40 lathe that weighs in around 800 lbs. It is 2 HP but in reality not nearly rigid enough for a decent cut when using "all" of that mediocre power. Over the years, it is pretty well tooled up, and as those who use...
  12. P

    Joby gets cert for second airframe

    Not my favourite part of aviation, but just as golf carts make sense for downtown urban transport even the uber-polluting lithium battery stuff might have some potential for short range VTOL use. In that vein, Joby has managed to get FAA on board for a second airframe...
  13. P

    Wholesale engine costs

    Thread is about exactly what the title suggests: what is and how is it determined that the wholesale price of an aircraft engine is.? From what I have seen in the past, a retail buyer will be quoted "$xx" price from a reseller/distributor/airframe manufacturer, but that price will suppose a...
  14. P

    Let's Talk Hangars

    Well, the section is indeed called "Hangar Flying", so let's fly some hangars. As I posted in "Members Only" I think we should have a forum just for hangars - building, insulating, doors, wiring, permitting, designing, building....all that stuff. Of course, I DO have an ulterior motive. I...
  15. P

    Interesting Video

    https://carbuzz.com/news/watch-the-miracle-of-internal-combustion-in-slow-motion I ran across this on my favourite automotive website (miata.net) and found the work done to make the demo engine/cylinder would be interesting to the DIY crowd. Also, my observation is that while totally...
  16. P

    Hexadyne information?"

    From the Frankenengine thread, the mention of the hexadyne really got my attention. Well, not immediately (since it is SI instead of CI) but a 60HP replacement for a half-VW at the same weight that does NOT involve Chinese industrial clones? Yeah, got my attention when I thought about it...
  17. P

    Interesting Characters in Aviation.

    I have done the Forest Gump thing for decades, and run into some of THE most interesting people on the planet. In aviation, I have the phenomenal good luck to be well acquainted with Canada's highest time pilot (ever, I believe, at about 48,000 hours!!) and good friends with THE most prodigious...
  18. P

    Modifying Canadian Amateur-built a/c

    Please remember I am NORTH of 49, so these questions are very much regarding CAR, not FAA regs. If I buy an existing, previously registered Amateur Built (we don't call them Experimental up here....well WE call them that, but the Ministry of Transport does not) and decide to modify it (in this...
  19. P

    Zenith CH200

    I don't know if this violates some unwritten rule, but if I could, I would like some opinions and facts regarding Zenith/Zenair CH200. Back in the day, I did not see exactly eye-to-eye with Chris Heinz, but a lot of water under the bridge and I recently ran into a CH200 that hasn't flown for a...
  20. P

    Rivet squeeze tooling

    I have a CP-251 squeezer that I picked up many years ago that has been laying in my air tools drawer. Buddy wants to do the cooling baffles on Pa38 and asked to borrow my aviation riveting gear so I agreed - but realized I do not have any tooling for the squeezer. It uses 3/16" shank rivet...
Top