wolf.

Guys, as mentioned I am doing rehab on a varieze w/o engine and would like to mount either a rotax 912 w 100hp or a jabiru 3300 w 120hp. Both engines are a good piece lighther than the O-200. The rotax especially should be about 30-40kg lighter and the VE would really benefit from that dieat. The Jabiru should be 20kg lighter and give 120hp's. So anybody who could help me with some information & experience wolf.

thanks lynn that was what I wanted to know wolf.

Allthough I have never seen an F4 close up, these seem to be the cuffs, now if they have the same effect as the vortilons I might save myself the hassel of removing them. Is my assumtion right?

Dear all, the VE I am rebuilding has the outbord leading edge wingcuffs, I read that reduce roll oscillations. Some have them some don't, could someone enlighten me on their usefullness. The same, the wing has no flow guides, I have seen the flow guides alla Savier, others have the leading edge flow guides like on my long, others have both, again I would like to know more about their effectiveness. wolf.

Waiter thanks as usual a very informative reply (btw your site is great, help me a lot working on my long) but my question was if I might substitute that electric trailing edge trim of the VE with the spring system of the LE (I like KISS more the spring system works fine. I like to know if there are other features from the LE which could be easily incorporated into the VE doing the Rehab?? wolf.

Dear all just bought a varieze airframe, (actually someone else started the work, so no engine, the piant is stripped and the electrics are cut). Since I am allready refurbishing it what are the usefull (time proven) modifications I could work in (e.g. thought of a Long ez like roll trim). Any suggestions are wellcomed wolf.

Thanks Joe, actually yesterday I went to pick up the varieze airframe I plan to refurbish. (I own and fly a long, but the price of the varie was right) And diamtelling I must say that it is easier than the long. Actually the width without wings is very nice to move it (we loaded the whole in a small van). wolf.

Did anybody ever install retrats on a varieze? wolf.

Dear all I have seen some guys with the jiran wing quick detach system. I very much like the Idea of taking of the wings and the canard and storing the varieze in a trailer (hangar space is hard to find and expensive). Are there still systems around like the Jiran and are they retrofitable (bought a varieze rehab project without the engine and while i am restoring... wolf.

Rufen Sie doch mal den Herrn Klaus Frisch in Augsburg an der hat eine 160 PS Speed Canard zu verkaufen 0821 4861524 (abends) Huhn

Hi I have a varieze witout an engine and thought of mounting a rotax 912. Could you tell me how it went with your installation? wolf.

Thank you very much although we have a lot of experience with the rotax engines themselfs they are the standard small aircraft engine in europe. I was more looking for information about an actuall installation and teh experience with a varieze. wolf.

Gentlemen I got hold of a varieze fuselage without the engine and thought of installing a Rotax 912 with 100hp, any information/experinece outthere. The Rotax is interesting because of it being nearly 35kg lighter than the O-200. wolf.

I have a stratomaster horizon XL since 1/2 year, so far it works fine, it has off course some limitations ( the display items can not be displayed bigger, e.g I thought to have th horizon on a single page bigger). But overall it works fine and its good value for the money, I would though recommend their new enigma, not much more expensive but much more performance. wolf.

Jon they look realy good to me. wolf.

Hi Jon any news on your open-ez twin any way we can help? wolf.

I have an O-290 in my Long and the prop turns 2350RPM at full throttle, instead of the 2800RPM of the engine. The whole thing had to be done to get a German Noise certificate (had to be under 70dB) to be allowed to fly. So (don't know the MAP) but technically I fly at 83% of my engine power. Ok but that is anyway not the point. Throttling back with my Lycoming on takeoff does not reduce my engine weight. So to compare apples with apples lets take the O-290 (135hp, 120KG) of my Long install a rotax 912 (100hp, 64kg) will I get the same performance, how far can light weight compensate for less hp??? wolf.

Anyone out there who has more aerospace background than I have (I am PhD Chemist) and can answer my question if it would be feasible to use 115-120 hp engines on the defiant if they are 150lbs lighter than O-320, I also would accept reducing the MTOW (my whole family is on the light side (my wife and me get 288lbs combined and the kids are still small)) wolf.

Jon that sounds great, I will sign up and send you a donation today. btw would the defiant allow to use 120hp engines if they are 150lbs lighter than lycoming. (i am thinking rotax or jabiru) In a nutshell would 300lbs less empty weight allow 40hp less per engine?? European Fuell prices for AVGAS are up to 10$/ga, MOGAS still woud be 6.5$/ga, so MOGAS eating low consumption engines are kind of atractive. wolf.

Hi Jon I don't have 800$ to waste either, but we could put some money together and then create the open defiant, I would give 2-300$, if someone else joins in we could get our open defiant (which I still think would be the experimental dream craft) wolf.

I am in Italy and have an untouched wright electric nose lift (had to buy it with my Long) which I will not install (extra weight, do need it & everything that is electric will fail one day (my oppinion)). If anybody in Europe is interested I would sell it for 1500 Euro (or next best offer). wolf.

Thanks rick for that exhaustive reply, I agree on most things. Yet, f.e the design is very light, using a rotax instead of the O-200 would save up to 40kg. Also any wing at any speed is more effective with an eliptic shape, the Hershey bar shape is a manufactoring short cut (the same ribs...). Longer Wings produce more lift and the stall is liked to the overall weight, right. On the canards we are limited by the AO of the canard no mater whe the main wing stalls, so any andvantage I could get from low weight or turbulators and the like will be hidden by the canard stall ( the canard wil stall at 50something Kts (my long does it at 56) even if the wing might stall at 35))see what I mean. Do we have any idea what the stall speed of the wing is? >>Lower the wing stall (bby whatever means) and lower the canard AO (might give you more top speed)<< (ok that is my understanding) I wasn't even contemplating flaps since the simultanious flap deployment is a recipy for disaster. wolf.

Ok guys I work for a US company so I should know al imaginable akronyms, I was a little bit slow last night. Nevertheless I would still like to milk your knowledge for my idea of lowering the stall in a varieze. Lower wings would be no problem since I (ok someone else) would build from scratch. How is lowering the MTOW influencing the stall? wolf.

waiter you lost me there: SOL (somekind of lost??) wolf.

waiter thanks, 1) tried google, UL canards are slow and ugly (very slow and very ugly in fact) 2) I have a pilot license and own a Long ok serious a low stall mod, as said doesn't need to be down to 35kts 45 would do the trick, would realy be interesting. GA is a little bit limited in Italy (~50 Airports in the whole country) UL instead is a little bit like GA in the states (we have nearly 1000 Ul fields). So would be nice to stall lower. (I lost a cowling screw last week and have to wait for the new prop so I had to dream about flying at least) wolf.