Two stroke engines in a racer ?

[First time Juke]

Economical PVA project; Update

Some changes has happened => span 5.2 m and lenght 3.8 m.

Since nothing has happened to get this advanced I present the profile.

Structure for a proto would be made of preformed ply_balsa_ply skin and few formers and spars to keep it together.

120 lbs weight is the goal...lighter than DA-11, but this has retracting main wheel and 4 more hp:s...will it fly with a 230 lbs pilot...that is the question.

[First time Juke]

Re: Two stroke engines in a racer ?

This 22 hp plane was supposed to be followed by twin engine pusher with lifting body, but seems that funding is not going to be in order so this will be postponed into undefinety future.

OTOH Here is Zimmer Skimmer; http://videos.howstuffworks.com/disc...ghts-video.htm

Lifting bodies have worked in the past !

[First time Juke]

Re: Two stroke engines in a racer ?

Something to motivate lifting body builders.


Lifting body before space shuttle:

http://www.youtube.com/watch?v=sFTiDTLCE1U&feature=related

More efficient lifting body:

http://www.youtube.com/watch?v=djdG0TNvPio&feature=related

Lifting bodies from the past:

http://www.youtube.com/watch?v=i8y5suPs1uE&feature=related

[First time Juke]

Re: Two stroke engines in a racer ?

E-TEC seems to have cracked the code;

http://www.thefreelibrary.com/BRP:+Evinrude'R'+E-TEC'TM'+Receives+U.S.+EPA+Clean+Air+Excellence...-a0131222985

Less pollution excellent mileage and so forth.

[IcePaq]

Re: Two stroke engines in a racer ?

Precisely controlled direct injection is the only thing that will allow two stroke engines to come close to the fuel burn of a comparable 4 stroke engine and even then, you cannot get past the fact that cylinder scavenging is still not complete.

This is why two strokes are fading from the outboard boat engine scene.

[AirDOGGe]

Re: Two stroke engines in a racer ?

Pollution was the main reason they banned 2-stroke outboards around here in Northern Calif.. Aside from the dirtier exhaust, oil from the same was accumulating in the waters of lakes and reservoirs.

t it's more "flying wing" than "lifting body".

[First time Juke]

Re: Two stroke engines in a racer ?

East German 550 ccm two stroke car Trabant was notorious for pollution.

I think my concepts will allow a new electric engine to be very effective on them as well.