SALMONBUG

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I go to a event in a small grass field club today with the R54, but I also take that one with me to remind people you don't need a jet engine to go fast ( very fast............)
I don't find any reference of it on RCU, so I introduce it. That's the weston velocity. A upgrade version of the weston tigershark, fit with a west 52 V2

CARS II

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That looks like a Shrike, there were 3 sizes, I had the one with an OS 25 with a tune pipe on it, it was super fast.

SALMONBUG

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IIn the past I had a had shrike .15 and shrike .45, good little flyers, but slow flyers compared to the weston velocity. To make a comparaison of the velocity and US products, it can be compared to a diamond dust or a ACM whiplash ( bothe discontinued )

those planes were dealing with the mithic 200 Mph barrier ( assuming they have good engines like a dub jett engine or a west engine)

The shrike is also a conventional airplane, the one I show on the pic above is a delta wing ( no stab, only elevons)

SALMONBUG

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I broswed rcu to find that pic of my little .15 shrike I builde"d 15 years ago. It was fit with a os .32 sx ,)

CARS II

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Final fitting of ailerons and flaps, I'm testing the Tamjets flap hinges that were give to me by a friend he has them in his Reaction and wanted my Reaction to have them too, I like how they deploy the flaps giving more than enoug down travel, also my elevator is a bit twisted, I have it pinned down on the bench and I'm spraying glass cleaner since it has ammonia it will help un-twist it, the hinges go in easier by cutting the corners.

CARS II

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Done with the right flap and aileron.

SALMONBUG

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do you plan to paint it or iron it ?

CARS II

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Planing for Ultrakote.

mr_matt

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Looks good. What hinges are those on the flaps? Old Tamjets? How did you installithe hinge points up in a line?

CARS II

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I taped the ailerons and flaps togather and to the wing tip, and the wing root tip, once it all was lined up and against the wing I lined up the hinge screw with the flap bottom leading edge and marked the spot where they go in and drilled it with a rotary tool with a fine cutting tip.

yep! Old Tamjet hinges.

CARS II

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On this pic you can see the hinges are lined up with the flap leading edge, it looks like 1/4" is a good distance for them to stick out.

SALMONBUG

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Those hinges are cool, I made a preorder for a R54 coming from the next batch. That one will be for a fellow, but I will certainly be on the scene during building. I will suggest those hinges with some other mods coming from my feedback with mine.

CARS II

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DreamWorks has these hinges under hinges, page 4.

SALMONBUG

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• thanks for the info, I will use them, but I will place them differently

CARS II

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Welcome, sounds good.

redtail

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Salmonbug - How would you use the flap hinges "DIFFERENTLY"????? Interested in using these hinges in my next jet project. Chic

SALMONBUG

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did you consider make a flat wing trailing edge and a flat flaps leading edge to reduce the gap betwwen flaps and wing when extended ? I don't think you need to increase energy in the flap boundary layer on this wing.

This opinion valid only regarding the R54 kit fit with hinges that doesn't have the pivot point in the center of the trailing edge

the kit hinges have the pivot point in center of the traling edge, no gap.......

the slot or "gap" you create with those hinges has two effect, it increase lift and reduce drag. Assuming the R54 need drag, but doesn't really need extra lift my opinion it's it could be a good idea to keep the slot minimal

( hope you understand what I try to say with my poor english

redtail

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My X-54 with the anhedral tail plane will not make it to First In Flight. Gopher hole got me today on landing roll out. No need to say more. You guys that are going - wish you all a great time. (Next Year for Me) Chic

SALMONBUG

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Google translator didn't helped me on that one, but I understtod you could have ealth issues. In that case I wish you prompt recovery

CARS II

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Here is your translation; His airplane is sick it got damage on landing.

SALMONBUG

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oops, .....

I take the oportunity of this dialog around sickness to make an update about what I wrotte some post earlier about issues with the kero start option of the P60. I switched my R54 to gas start convinced I would have more reliable starts. It was not the case.. I had still difficulties to start the P60. Some fellows from belgium used to this turbine, checked my setup deeply and we arrived to conclusion, I should have a deffective ECU or turbine electronic componennts issue. I took the oportunity of a big rc event not very far away from my home to visit the jetcat stand with my R54 fuselage and showed my setup.
They made some test and the first diagnostic is a faultly RPM sensor giving somethime, but not always erratic rpm data. My turbine is in germany for warranty repair.
I have been lucky to not suffer a flameout in flight.
So you may consider my first opinion about the P60 kero start option to be a wrong info

Flight continues, A fellow me has a P60 laying and we will temporarly place it on my plane

CARS II

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Good to know, mine is going to be pushed by a P60 also.

SALMONBUG

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I consider this engine to be just fine for the R54, if you watch the short video I posted earlier showing my third flight, the evolution you see are made with throttle stick just below 50 procent.. Ok, my R54 turned out "abnormaly" light, but this can give you an idea of how the airplane fly with that engine

CARS II

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Agreed!

working on the left wing aileron and flap, still working on the elevator tips to get the straight, almost done

CARS II

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The build continues, not much building but details on the wings before they are glued togather, that will happen next week.