RE: Another Skymaster Viper
 

just order it thru the carf site , and use me as reseller
its the fastest way

RE: Another Skymaster Viper
 

And there was maiden!
Best plane I've ever had!!!
Sorry the video is not by Steven Spielberg... :D

[youtube]http://www.youtube.com/watch?v=KtWdUwPl1EA[/youtube]

http://www.youtube.com/watch?v=KtWdUwPl1EA


8

RE: Another Skymaster Viper
 

Congratulations with the maiden ;)

Ahh, my new canopy is on it's way, to be safe, I ordered 4, then I have some spares :D
I also ordered a P200 bypass from them, do any of you have pictures of the P200 bypass Skymaster is offering (is it a good fit etc) ?

RE: Another Skymaster Viper
 

Congrats Otto !! It looks like despite the new 2M version, the big viper is still growing in numbers

RE: Another Skymaster Viper
 

Carsten, sorry to hear you are having so many problems with the canopy.

The problem is very confusing however.

I have seen posts where people are complaining of too much internal pressure in the airframe and having problems with the gear doors blowing open and making holes in the back of the fuse to allow air out. This would suggest overpressure from the air intakes.

Your post says you were not flying at high speeds and only using full throttle on the P200 during short upline bursts the rest 1/2 throttle. If there is only 1/2 throttle, then the airflow requirements for the turbine should be significantly less than at full throttle.

So the question begs, is this really a vaccum problem? Maybe you should think about this.

If you do a full throttle run-up of the P200 with the aircraft on the ground, what happens to the canopy glass then? With no forward airspeed, this should be the worst case scenario and I would think that your ground testing should include this test?

Hope you are able to find the problem soon as it flying time!!!!

PaulD

RE: Another Skymaster Viper
 

Paul the gear door problems were due to where the pick up points are as standard. My viper with a modded location and bvm rams had no such problems, although it is a bypassed system if that makes a difference

Duncan

RE: Another Skymaster Viper
 

Congratulations with the maiden flight.[sm=thumbs_up.gif]
And the video is almost as good as a video from Steven Spielberg:)

Regards Ron

RE: Another Skymaster Viper
 

Paul,
I didn't notice any doors open on my previous flights, the only problems I have seen the first two flights was the gear not retracting completely (solved with a roll), I chnaged the airline to 4 mm and used some higher pressure on the last flight, looked ok to me this time, although one of the gears was a bit slow on retracting.

Anyway, even though I wasn't much on full throttle, I have a feeling that when pusing the throttle on the P200 to maximum quickly, it will suck the air quickly from the fuse when the engine is not bypassed.
When I landed, the canopy was "pushed in", maybe it's not too easy to see on the pictures I posted, it looked like someone had hit the canopy with a hand. I had to use some force (from the inside) to get the canopy to unfold again.
I have not yet tried running the engine to max on the ground with the gear up, but when I get the new canopy and bypass mounted, I will certainly try this (although nothing will happen as the engine will be in a bypass).
The first time the canopy was destroyed, I thought it was (only) because of the bad glue that was used from the factory, this made the plastic very brittle, and it was extremely easy to take the rest of the canopy out of the frame. I did not think about vacuum at that time. When I installed the new canopy, I made sure it was well glued (epoxy) all the way, and this time the plastic was ripped apart along the half of one side, and most of the arc at the back of the canopy.

RE: Another Skymaster Viper
 

Thanks you all (Ron I'll say it to my wife:)), but I forgot to say [sm=angel_smile.gif] that in the second flight I come to slow and have a stall fortunately at 20 cm by ground.
With almost 19kg I broke a piece of the front carriage and the wooden support of the right carriage and some minor damages.
Fortunately I have reinforced it with the carbon frame produced by Sandor so I didn't have any damage on the wing upper side!
I asked it as a spare part to Skymaster today hoping they will respond me as soon as possible, I need to fly it again!!!:(
Look the picture, I was lucky the pin is not so hard and broke itself preserving fuselage and all the other parts of the landing gear.

RE: Another Skymaster Viper
 

You were lucky, it could be worse when the pin in the front didn't brake.
Hope you can fix it and fly very soon again, but when i look at the picture it seems to me that you have to paint the nose of the fuselage, or am i wrong.

regards Ron

RE: Another Skymaster Viper
 

Yes you are perfectly right fortunately a bit only the bottom but also the right winglet. [:o]
I think perhaps it's better if I buy a new one, is removable, It should be inexpensive and I can fly while waiting for it.

Ciao
Alessandro

RE: Another Skymaster Viper
 

[quote]ORIGINAL: OttoKranz

Jou are lucky that you know a good adres for a good landing gear, maybe it is something for you :D like you told me at post 1103;)


I knew already about the gear, but i think that a gear of 1195,= dollar should work.


best regards,

Peterjan

RE: Another Skymaster Viper
 

Some pictures how it looks like when it is build in the Viper.

Regards Ron

RE: Another Skymaster Viper
 

[quote]ORIGINAL: Peterjan



:D Eh eh eh, my landing gears are the Skymaster original 1195 dollars and are working fine! I bought them before knowing about the leaking problems, I must say that until now I didn't have any problem and they are really beautiful to see.
However if you buy the one from digitech (with lifetime warranty) you still have to buy the other part of the landing gear from Skymaster, ask to Sandor.

Two more videos of the same maiden day.

http://www.youtube.com/user/temerari.../2/O731iYwhufQ

and

http://www.youtube.com/user/temerari.../1/6TzcXq8oD_s

Thanks to Guido Villa as "temerariofly" for the shootings and to have cut the last embarrassing 10 seconds... :)

Ciao
8

RE: Another Skymaster Viper
 

Really beautiful Ron, perhaps better with allen screws (anodised red?).

Ciao
8

RE: Another Skymaster Viper
 

Hallo Alessandro,

Yes, you are right.
Normally the fuel fill cap is delivered with allen screws (see picture), but because i had to build in the cap after the plane was ready,
it was not possible to fit to the ring that comes in the fusalage.
Or the Viper is to small, or my hands are to big.:D
That is why i used self tapping screws on the Viper.

When i see the video's it looks like you have fun flying the Viper.

Regards Ron

RE: Another Skymaster Viper
 

Doesn't matter, is still a really beautiful gadget. I think is too late for me to place it...

Yes really a lot of fun, I can't see the hour to fly it again!!

Ciao
A

RE: Another Skymaster Viper
 

Otto

if you need wooden parts i can cut them on a lasercutter if this helps.
if you know the measurements i can help you.
as for the part on your picture i could help you with one we make ourselfes and use a different pin to get you flying again.
you see the part in the top middle

RE: Another Skymaster Viper
 

Sandor, you are very kind, in this case I fortunately don't need any complex wooden part, but I'll remember it for the future.
Thanks also for that part. I didn't know you have done also that one, It seems stronger and very well done but I immediately ordered it from Skymaster with the right red winglet.
Did you see your lights on my video? Just perfect! :) Here in Italy are all asking me about them!

8

RE: Another Skymaster Viper
 

Guys,

I am trying to decide if i use the BVM UAT or the JMP accumulator on my Viper for my P-160SX..... well I would decide after a few test.
I did make on the 3D printer a nice holder for the UAT. I did the design in 30 minutes on my CAD system.... and 2 hours later the parts was done on the 3D Printer in ABS plastic.

Enjoy,

Gonzalo

RE: Another Skymaster Viper
 

i got to get me one of those

RE: Another Skymaster Viper
 

Yes you do ;)
That is one niece piece of machinery, we get prototypes for our devices from a company using a machine like that, I'm very impressed with the quality of the plastic, you can drill and handle it very hard without it breaks

RE: Another Skymaster Viper
 

Hi Carsten,

When I went to install Sandor's control horns in the elevators, I found that the folks at SM did not put any wood blocks in the elevators. I used the sponge (foam) method that you described and got a lot of hysol into the void but I was not able to fill the void with glue. Have you had any problems with the control horns coming loose on the surfaces where you had to use the sponge method?

Thanks!

RE: Another Skymaster Viper
 

Hi Mike,
well, because of my canopy "problems", I have not had too many flights on the Viperjet yet, but the idea with the sponges is not mine, I got it from a good friend here, and he has been using that method before, and as he is a master builder, I have great faith in him :D
Did your glue "flow thru" the walls of the sponge since you could not fill the void ?
Depending on how much the glue would run out of the void, I would be careful ! It alle depends on how much of a "block" the glue would make if it will hold or not

RE: Another Skymaster Viper
 

Today finally had the maiden flight of my Viperjet and yes i'am very happy with it.:D

Everything was OK, plane flies easy, take off was easy, landing was also Ok , only a bit to fast.
So at the end of the field (100 mtr) i turned to the right and because the high speed of the viper it started to slide sideways
and then all the weight of the plane was on the left main gear, so that one broke out.[:o]
No big problem, end of the week there will be no damage anymore.

Regards Ron