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Search: Posts Made By: jaka54
Showing results 1 to 25 of 116
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Forum: Questions and Answers
03-07-2023, 02:39 AM
Replies: 8
Views: 252
Posted By jaka54

Neither Solartex or Orataex or any other plastic...

Neither Solartex or Orataex or any other plastic covering film need adhesive! Just iron it down!...
Forum: Questions and Answers
02-21-2023, 02:41 PM
Replies: 3
Views: 437
Posted By jaka54

You first paint the balsa structure with...

You first paint the balsa structure with cellulosa paint (dope to you americans) and when it has dried (takes just a few minutes) you put on the tissue by taking a small paint brush dipped in acetone...
Forum: Questions and Answers
02-17-2023, 08:23 AM
Replies: 7
Views: 538
Posted By jaka54

Just tighten the nut enough ! I have never...

Just tighten the nut enough !
I have never encountered that a prop nut would come lose using an electric starter (Sullivan)or flipping the prop by hand on any engine be it four stroke or two stroke....
Forum: Glow Engines
02-06-2023, 02:55 AM
Replies: 86
Views: 9,121
Posted By jaka54

Here in Europe where we use 0-5% nitro it is my...

Here in Europe where we use 0-5% nitro it is my nearly half century experience that what I mentioned about rpm for four strokes and recommending props brands is correct. Try it yourself and see if...
Forum: Glow Engines
02-05-2023, 01:58 PM
Replies: 86
Views: 9,121
Posted By jaka54

Hi! the rpm I mentioned is for best flying...

Hi!
the rpm I mentioned is for best flying performance using the best props ( RAM. Graupner G-sonic and APC) not what the engine could rew...which is unimportant in sport engines.
Forum: Glow Engines
02-05-2023, 11:47 AM
Replies: 86
Views: 9,121
Posted By jaka54

Hi! First of all ...do not count how many turns...

Hi!
First of all ...do not count how many turns you have the high speed needle open! You set the needle by ear!!! How many turns the needle is open or closed is a non issue!
The 11x7,5 prop is a...
Forum: Questions and Answers
01-25-2023, 05:32 AM
Replies: 13
Views: 1,102
Posted By jaka54

Hi! What do you mean by "balancing neutral"?...

Hi!
What do you mean by "balancing neutral"? Planes usually have a C of G at around 25-30% of the wing cord.
Forum: Glow Engines
01-21-2023, 01:25 AM
Replies: 30
Views: 1,994
Posted By jaka54

First check the valve seat and the surface on the...

First check the valve seat and the surface on the valve! The surface should be uniform and not pitted. I have never seen a pitted valve seat or valve surface during my 48 years in this hobby.
Forum: Questions and Answers
01-21-2023, 01:14 AM
Replies: 10
Views: 1,563
Posted By jaka54

Here in Europe where we use no nitro or around...

Here in Europe where we use no nitro or around just 5% nitro, Enya 3-4 ,OS 8, Rossi 3-4 ,Nova Rossi 3-4 in two strokes (and many more) and only OS F plug in four strokes!
Forum: Glow Engines
01-07-2023, 08:09 AM
Replies: 86
Views: 9,121
Posted By jaka54

But how about flying inverted?? Did your tank set...

But how about flying inverted?? Did your tank set up work there too?;)
I'm aware that all glow engines can run just perfect with the tank lower than what I suggested, but my recommendations was...
Forum: Glow Engines
01-07-2023, 08:03 AM
Replies: 6
Views: 677
Posted By jaka54

Hi! Sorry to hear this sad news! I followed...

Hi!
Sorry to hear this sad news! I followed Clarence Lee's engine tests in Model airplane News for years in the seventies and forward and will remember him as one of the great ones in this hobby.
Forum: Glow Engines
12-31-2022, 03:50 AM
Replies: 86
Views: 9,121
Posted By jaka54

Hi! Here we go! Fuel: Use Castor oil 18-20%...

Hi!
Here we go!
Fuel: Use Castor oil 18-20% in your fuel or 18-20% all synthetic like Motul Micro or a blend of castor and syntetic oil! Never use less than 18%!
5-10% nitro is just fine. I run...
Forum: Glow Engines
12-31-2022, 03:11 AM
Replies: 1
Views: 417
Posted By jaka54

Os fs 120 sp

Hello!
I got an OS Fs 120 SP (Used) from a friend some months ago and replaced the two ball bearings on the crank shaft as the engine had been sitting for 10-15 years. I also took the whole engine...
Forum: Glow Engines
12-06-2022, 07:32 AM
Replies: 3
Views: 601
Posted By jaka54

Hi! If your engine has been sitting for a...

Hi!
If your engine has been sitting for a decade or more I can promise you that the ball bearings need replacement and the engine needs cleaning to get rid of all gummed up castor oil.
Forum: Glow Engines
11-29-2022, 07:24 AM
Replies: 8
Views: 659
Posted By jaka54

Hi! I have lots of spare parts (and engines)...

Hi!
I have lots of spare parts (and engines) for the MVVS line of engines.
I have both the "new" style of silencer for the 10-15cc engines (not held by pop rivets like the one in the picture below)...
Forum: Glow Engines
11-06-2022, 09:22 AM
Replies: 6
Views: 588
Posted By jaka54

Hi! The 14x4 APC will be just fine ...if you...

Hi!
The 14x4 APC will be just fine ...if you set the needle so the engine runs well! The rule of thumb is to shoose prop to what plane you have ,not to what rpm the engine best deliver its power....
Forum: Glow Engines
10-10-2022, 12:14 PM
Replies: 7
Views: 1,538
Posted By jaka54

Hi! Why not use a smaller intake carb?! Most...

Hi!
Why not use a smaller intake carb?! Most .40-.46 size two strokes(6,5cc-7,5cc) have a carb with an intake diameter of 7-8mm.
I have used 9mm carbs on my .40 Q-500 MVVS engines, swinging 9x6,5"...
Forum: Questions and Answers
10-10-2022, 12:04 PM
Replies: 9
Views: 778
Posted By jaka54

None! It just takes practice to know the planes...

None!
It just takes practice to know the planes location in the air! How many years have you flown ?
Forum: Questions and Answers
09-21-2022, 11:35 AM
Replies: 2
Views: 440
Posted By jaka54

Hi! Of course you can use old (seventies)...

Hi!
Of course you can use old (seventies) servos. I still have some old Futaba S6 servos that I started with in 1975. But I do not use them on important places like aileron and elevator.
Forum: Questions and Answers
09-21-2022, 11:32 AM
Replies: 8
Views: 818
Posted By jaka54

In a 1/4 scale CUB ...an OS FS 1.20 is the...

In a 1/4 scale CUB ...an OS FS 1.20 is the perfekt engine! A too big and heavy engine (all over 20cc (1.20cub inch) is making the plane too heavy). A CUB is supposed to fly on its wing not on brute...
Forum: Tips & Techniques
09-21-2022, 11:27 AM
Replies: 6
Views: 742
Posted By jaka54

Ordinary water works good too !

Ordinary water works good too !
Forum: Questions and Answers
09-04-2022, 12:44 AM
Replies: 14
Views: 862
Posted By jaka54

Hi! Soo it is difficult to handle in the air?! ...

Hi!
Soo it is difficult to handle in the air?!
How big is it and how heavy is it? Does it snap-roll when you turn with full aileron and elevator? If it does it could be too heavy or the wings (one...
Forum: Tips & Techniques
09-03-2022, 12:28 PM
Replies: 7
Views: 708
Posted By jaka54

??? You just add weight and use "cut and try...

??? You just add weight and use "cut and try metode " ! No advanced calculations are needed to balance a model airplane!.
All airplanes are balanced (Cof G ) at approximately 25-30% of the wing...
Forum: Questions and Answers
08-29-2022, 12:24 AM
Replies: 14
Views: 862
Posted By jaka54

Hi! I'm an oldtimer to, been flying R/C since...

Hi!
I'm an oldtimer to, been flying R/C since 1975 (then 21 ). Have you checked for Wash-out in the wings? Mixing rudder and aileron is not advisable on any airplane.
Have you pictures of the...
Forum: Questions and Answers
08-18-2022, 11:37 AM
Replies: 27
Views: 1,404
Posted By jaka54

Hi! Agree with Jester! A little bit of Toe in...

Hi!
Agree with Jester! A little bit of Toe in is necessary and some positive camber.
The landing gear you use is probably too flimsy! What diameter do you use? 3mm or 4mm piano wire? i would...
Showing results 1 to 25 of 116
 
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