Top RC Models MkIV full Composite Spitfire-a game changer
#254
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Change of plans
I was just about to start chopping the cowl for the 30cc Moki 2-stroke, when Affas video came up on the sister thread.
I think he has a Saito FG-36 - the sound is awesome, the part where he taxies back after the flight is very realistic.
http://youtu.be/9cD3OfTgoyw
I was just about to start chopping the cowl for the 30cc Moki 2-stroke, when Affas video came up on the sister thread.
I think he has a Saito FG-36 - the sound is awesome, the part where he taxies back after the flight is very realistic.
http://youtu.be/9cD3OfTgoyw
#255
Hi and thanks!
I think mine is perfectly powered. I do have a Saito FG 30 but I did have some reliability problems with it so I swapped to www.ch-ignitions.com with both ignition and carb and it is now so smooth!
I think mine is perfectly powered. I do have a Saito FG 30 but I did have some reliability problems with it so I swapped to www.ch-ignitions.com with both ignition and carb and it is now so smooth!
#256
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Our local RC shop carries the OS GF40 which should be plenty of power for the Spitty, but what about cowl fit?
After some trial and error in CAD I ended up with the following optimal configuration:
- Engine inverted rotated 10 degrees
- 80-degree manifold to fit the muffler in the cowl
- I will make a 20mm prop shaft extension to move the whole engine further back in the cowl
On plan there's only the top part of the head protruding (the yellow part in the front profile) - not bad
After some trial and error in CAD I ended up with the following optimal configuration:
- Engine inverted rotated 10 degrees
- 80-degree manifold to fit the muffler in the cowl
- I will make a 20mm prop shaft extension to move the whole engine further back in the cowl
On plan there's only the top part of the head protruding (the yellow part in the front profile) - not bad
#258
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Hi and thanks!
I think mine is perfectly powered. I do have a Saito FG 30 but I did have some reliability problems with it so I swapped to www.ch-ignitions.com with both ignition and carb and it is now so smooth!
I think mine is perfectly powered. I do have a Saito FG 30 but I did have some reliability problems with it so I swapped to www.ch-ignitions.com with both ignition and carb and it is now so smooth!
#261
Here is the video link of the TopRC Spitfire, looks very nice
https://www.youtube.com/watch?v=9cD3OfTgoyw
https://www.youtube.com/watch?v=9cD3OfTgoyw
#262
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Until I fly it, I have no opinion. Mine is electric and I'm waiting on some items to finish it. Probably won't fly it til late May early June when the flying field is usually in good enough condition for me to consider flying it off of.
#270
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For hot air outlet I made 3 grilles / cowl flaps. The one in the middle will eventually be enclosed in the carb intake (I'll cut the bottom off), the other 2 on the side
#273
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Back in the shop to finish the setup, did an initial CG test and with the batteries in the tank area it still needed 1 lb to balance.
I hate ballast on planes, so I cut the servo tray in half and moved it forward of the CG:
I hate ballast on planes, so I cut the servo tray in half and moved it forward of the CG:
#275
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Maiden time!
OK the plane is not finished yet, this was just to make sure things are on the right track regarding CG, engine cooling etc.
It went really well, AUW is 8 kg dry with only 250gr in the nose. The plane is slippery and aerodynamically balanced, combined with low wing loading makes a very easy to handle warbird that has a very gentle stall (no wing drop, I tried hard as you see on the video) easy take-off and landing.
Engine still very rich as I'm half-way through the 4 litre break-in, but no problems with cooling
https://www.youtube.com/watch?v=hj2YrQqZv78
OK the plane is not finished yet, this was just to make sure things are on the right track regarding CG, engine cooling etc.
It went really well, AUW is 8 kg dry with only 250gr in the nose. The plane is slippery and aerodynamically balanced, combined with low wing loading makes a very easy to handle warbird that has a very gentle stall (no wing drop, I tried hard as you see on the video) easy take-off and landing.
Engine still very rich as I'm half-way through the 4 litre break-in, but no problems with cooling
https://www.youtube.com/watch?v=hj2YrQqZv78