Likai

Today morning, I tested prototype Skymaster Mig-29 OVT (JetCat P-180 powered). Here is video of this flight.

http://tw.youtube.com/watch?v=_o4mjY2NYJI
http://video.google.com/videoplay?do...32327993003095

CPS

Another amazing airplane from Skymaster!

john agnew

Likai

The Mig looks superb. Can I ask that that you DO NOT release this model to the customers until the landing gear is properly developed, that is with the correct spring rates in the oleo legs. I understand that customers are still having problems with the oleo springs in the MK2 Hawk. That should simply not be happening.

Best regards

John

Likai

Hello John

Please don't worry about the gear of Mig, I only design adjustable gas-spring/oil-damped struts and never use simple spring design. That's because the function of spring is not be used to absorb shock energy but only be used to suport weight of plane. If a spring is been designed to absorb huge heavy landing energy in limited strut stroke, its spring rate will be unreasonable high and cause plane bounce when landing. This is the reason why most of full scale planes use gas-spring/oil-damped struts.
The gear of this Mig-29 will use the gas-spring/oil-damped struts design that same as F-16(1/6), F-4 and MB-339, so the air-spring rate is adjustabe to suit different weight of planes. The other news is that Mig's nose strut can be shortened automatically in retract position to fit in scale nose gear well.

Best regards

schroedm

My Feedback: (1)

Likai,

How scale is this Mig? I know a few of the other Skymaster models, whilst great flyers, have had some slightly 'off' outlines. Would be interesting to see if the model could be used reliably in scale competition?

Regards,
Mark

lavi rider

My Feedback: (6)

Looks nice but from the pics..however I don't see how you intend to have a mechanical lock in both extended and retracted position ....The original uses hydraulic lock .....

Likai

Hi lavi rider

These cylinders are new designed self-locking cylinders, there is a small locking piston in the mounting-end cap of cylinder(yellow part of nose gear). This small locking piston locks the main piston when cylinder is in the shortest position (gear extension) and unlocks when gear is in retract position.

john agnew

Mark

From looking at the first photograph of the plug on the Skymasters website it looks to me as if they have deepened the fuselage between the two engine pods to provide enough room for the single turbine. This would knock it on the head for scale competition use as the front and rear views would not be correct although the side view would still be ok.

I may be wrong about this and would welcome feedback from Skymasters. I can understand why they have gone for a single central turbine as a twin turbine would have considerably less appeal in terms of cost and complication, still looks like a nice model though!

John

JetsRC

Nice flying Likai, congratulations the MIG-29 looks aweseome....

i3dm

My Feedback: (51)

Cant wait to get my hands on one... Likai, you get to do all the fun stuff my friend.

Anton, is there an estimated price ?

Likai

Another video of Mig test fly:

http://video.google.com/videoplay?do...05301635610183

JetsRC

Great video and great flying Likai... You seem to be having a lot of fun with this jet...

AndyAndrews

When is it going to be ready?

Likai

The parts of L/G are machined in CNC shop now. But as you can see from the CAD pictures, it is very complex and many parts are still in aluminum block state. I'll push the CNC worker and hope can get the gear on next month.

Likai

Yes, I got a lot of fun with this jet. It is a whole new experience to fly a jet with such performance.

SJN

It looks overpowered

Can it fly with a smaller turbine ?

Likai

Yes, it can fly with smaller turbines but can not do hovering. Physics is physics, there is no magic.

Rider-60

My Feedback: (17)

Likai,

Do you have any gyros to ease "hovering"?

Florent

AndyAndrews

What!!!??? No Chinese Magic?

Likai

Hi Rider-60

Yes, I use one GY-401 on yaw control and one GYA-352 on pitch/roll control. I still have not try hovering without them, because my prop-plane hovering skill is not so good[]. I don't want to take the risk to crash it. But Seba has told me because there is no torque effect in jet plane, so hovering a jet without gyro is not so difficult than a gaser. Maybe I can turn off gyros next time.

yeahbaby

My Feedback: (21)

Li Kai

is there enough room in the engine compartment to accomodate a JetCat P200 or AMT Olympus??

rough dimensions for both are:
width: 130 mm 5.1 inches
Length: 270mm 10.6 inches

congrats on a successful project [sm=thumbup.gif]

cheers
buck

David Searles

My Feedback: (49)

GIVE ME POWA, MORE POWA!!!

DAVID S

yeahbaby

My Feedback: (21)

You know it amigo. besides I'm too cheap to purchase another motor. LOL

cheers

AndyAndrews

If you own a P200 and an Olympus you aren't cheap buddy. lol, thats like saying I'm cheap because I put walmart tires on my rolls royce. well, thats not a good analogy, lol. You get my drift!

yeahbaby

My Feedback: (21)

andy
you weirdo

I don't own both but used them for dimension reference sicne they're already using a P180. I only own the AT450/Olympus and dont' want to purchase another motor if the Big Block iron lung will fit. LOL

cheers

buck