jtisch

Propnut,
Keep checking on E-bay, the 40cc weedwhackers seem to keep getting cheaper and cheaper.My used 40cc actually turns 100-200 rpm higher than my new one, so I wouldn't be shy about getting a used one(as long as it's not trashed). In regards to my conversation with Proctor,they said their engines were turning a 20x10 @6500 while I am turning a 20x8 @ 6300.

J

jtisch

I forgot to give "props" to vertical grimmace. That is one fine-looking DVII! Your exhaust looks awesome and of course the lozenge fabric is to die for. I have some GTM fabric but I am a slow builder so it will be a while before I get around to using it.

vertical grimmace

My Feedback: (1)

Thanks jtich. I think there are some tricks to using the fabric. I used wax on my rear spars but my fabric still stuck to them in places. I used a small straight pin to get it unstuck and it looks fine now. The biggest problem was the weather was too cold for the dope to dry fast enough. You really need to have it warm outside to dope properly. Unless you have a heated shop but the smell is really hard to deal with.
I also had a hard time finding rib tapes. I would either use Glenn's losenge tapes or maybe he will offer some in the plain white linen and then you can dye them. I used some ribbon from a fabric store and it 100% polyester. This not only did not take the dye well, but it also did not stick down the way I would have liked.

vertical grimmace

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This thread may be considered dead but i wanted to report on my maiden flight. With the G38 she flew wonderfully. I shimmed the rear struts with G10 fiberglass 1\8" to remove some positive incidence in the wing. I had it set up as per the plans. This worked great and required minimal downtrim for level flight. She does want to skid in the turns requiring rudder input but otherwise she flew great. Very easy to keep straight on take off and for landing I just got her over the runway and chopped power to idle. She just set down nice and easy.
I did have to add 2.5lbs of lead up front though to get the balance right at the 5" mark. She really did not seem to mind the weight. This puts the total to 24.5 lbs.

lazyace

My Feedback: (126)

glad to here she flew good for you I'm just about ready to maiden my busa 1/3 with a zdz 80 up front + 10 lbs to balance her let you know when it goes up .

happy landings charlie

Prop Nut

My Feedback: (3)

Yeah VG!!! Happy that it worked out for you. How about som flight video?

vertical grimmace

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I had some pictures taken and will post them. I have to wait for them to be e-mailed from a fellow pilot. Video might be a little tough, but I will see what I can do. The most fantastic thing about my DVII is how good it looks in the air. I swear I now know what the full scale would look like. After all of that work and research it is so satisfying to actually see her in the air. Can you believe a guy at the field asked me "is that an ARF"! That is such a typical response anymore though that it was not really all that insulting.
Good luck Lazyace. One more thing to remember, this plane flies really kind of slow. I was surprised though at first that I even had enough power to get off of the ground but I now feel the G-38 is perfect. With the way mine is rigged right now, at low throttle settings she drops. At higher throttle settings she climbs. So if I need to gain altitude I just power up. I think I like this way. Sort of like a properly trimmed trainer. I have only had the one flight but I cannot wait to get back out there. I really do love the way the BUSA aircraft fly. That is the reason I chose this kit in the first place. Now my DR1 will not feel so alone on the flight line!

vertical grimmace

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Here are some pics at the field. I still do not have any video as I do not have a camera for that. Maybe my digital camera will work? Anyway, My triplane is about 5 years old and now has a companion! The DVII flies great. 5 flights now.

vertical grimmace

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I am wondering, could some of you guys who have been flying yours for a while now tell me where your aileron throws came to? I have mine set as per the plans with 1.25" up and .5" down. I think I want to increase the amount of down travel to try to attempt a roll. It would be extremely slow right now. Here are some more pics with my new aces of iron pilot. He is removable.

vertical grimmace

My Feedback: (1)

Prop Nut

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I have never checked mine, sorry. I gave it all the throw it would take. Your plane looks awesome. I am jealous

Babblefish7

the pic's look great VG. go to that post and try the edit feature, openit and then save it, that is how I fixed mine when it did that.

mark

bhole74

Going to Muncie next week for the HDP!

Prop Nut

My Feedback: (3)

Looking forward to it Brian! I told my wife that I was leaving Thursday evening, she got a little peeved, first it was friday after noon, then friday morning now Thursday evening. Just can't wait!

bhole74

I'll be there Tursday afternoon. We're leaving Wednesday and staying over night in St. Louis, probably won't be able to drive after touring the Busch Brewery! LOL!

vertical grimmace

My Feedback: (1)

Well, I need to revise my weight figures. It seems I did not calculate correctly and I am considerably lighter than I thought. I thought I was at 24.5 lbs. Last night I put the fuse on my digital scale and then weighing the other 2 wings seperately, The total came out to 18lbs. 14 oz. The reason why I post this is that this weight is very reasonable and I would actually consider it light. This was using The Torrence fabric on the entire plane. Also I added 2.5lbs. of nose weight! So it is possible to add scale detail without a ton of weight to this kit.

vertical grimmace

My Feedback: (1)

Oh, also to anyone else building this plane. I increased the travel of down aileron to probably 1". I have now done a roll and it does not skid any worse in the turns than it did before. I actually think it handles better. I may remove all of the differential. If I need to I will just fly the Rudder.
Another thing I have learned about gassers, The fuel vapors expand more than glow fuel. I have found out the hard way that you do not want to plug the vent when storing or transporting your plane. The pressure inside the tank will blow the stopper right out!
Anyone know a good way to remove gasoline stains from fabric? Maybe K2R spot remover. This is just one more in a long list of things I have learned about gas engines.

lazyace

My Feedback: (126)

goo gone works pretty good on fab.

happy landings charlie

GerKonig

Wen I mess up things realy bad I use my wife's Mr. Clean cleaner, it is really great and it does not foam a lot (like detergents), making the cleanup easier.

Gerry

Ralf strutter

Hi to all 1/4 DVII builders,

Should the Laser 200V be a good candidate for a BUSA DVII?
widest point is 15cm, does this fit inside the cowl/fuse completely?

I'm currently flying this engine in a Mick Reeves Sopwith 1 1/2 Strutter, it weighs 7 kg and has power to spare
(18x8" master airscrew)
wondering if it would be sufficient on a 8-10kg plane?

Thanks, Ralf

Prop Nut

My Feedback: (3)

I dont know the conversions but it should do just fine. If you are swinging an 18x8 at a respectible RPM you should be fine. Mine flies with an 18x8 @ 6900 rpm just fine.

15cm should fit into the fuse as well.

David

Ralf strutter

Hello David, thanks for your reply

Good to hear It should fit in the fuselage
Now I can start on planning

I haven't measured the rpm on the Laser with 18x8", shall try soon

Thanks, Ralf

vertical grimmace

My Feedback: (1)

I am about to try an 18-8 MAS Scimitar prop on my G38 with the DVII. I seem to remember that that was mentioned as a good prop. I test ran it and it felt really good. (did not tach it). Does anyone have experience with this combo?

Prop Nut

My Feedback: (3)

I run a 20x8 MAS Scimitar on my 34cc Briggs and Stratton four stroke, it gives me the best RPM and thrust of any other that I have tried on that engine...not sure if that helps at all as it is a different motor but it was the best of the many I tried.

vertical grimmace

My Feedback: (1)

I flew on Sunday with the 20-8 Scimitar prop and I do like it very much. It seemed to pull better than the 20-6-10 Power point prop I was using. Also it does look pretty cool.