Timos Typhoon FMT Bauplanmodell
- Ersteller Timo Starkloff
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Could be a Wondermike Hellcat. It is similar to the good old swedish Hellcat you can find a build thread here
Gruß Ewald
Timo Starkloff
User
Good start of an aircombat model collection, Raymon! Be careful, more will follow :-)
Timo
Timo
i think it is yes.
i hope the next one is a corsair.
next to mij 2.2m corsair with saito radial
Timo Starkloff
User
It will fly with that weight, Raymon. But they’re heavier than previous models. Should be around 900 grams for an OS20FP and around 1000 for the OS25FX. Do you have some details and pictures (servos, balsa weight, modifications?
Timo
Timo
Timo Starkloff
User
What accumulator size do you use?
Wood glue? Or two component epoxy glue?
Not much difference to mine. I had 9 gram servos for ailerons, 15 gram for elevator/motor. 10-13 grams metal gear should be perfect.
Bringing the weight down for contest isn’t easy. Especially since aircombat models should be tough and robust. Little improvements add up to a good result.
Timo
Wood glue? Or two component epoxy glue?
Not much difference to mine. I had 9 gram servos for ailerons, 15 gram for elevator/motor. 10-13 grams metal gear should be perfect.
Bringing the weight down for contest isn’t easy. Especially since aircombat models should be tough and robust. Little improvements add up to a good result.
Timo
Timo Starkloff
User
It really is a few grams here, a few grams there. which add to a heavier weight. Experience helps bringing weight down :-)
Light balsa reduces the weight of the basic wooden model around 1/3. The complete model can be built with light wood glue. Heavy epoxy is only needed if glass fibre is used to strengthen the wing joiners. There are lighter options than epoxy to make the motor compartment fuel save.
Where have you placed servos and receiver? What kind of servo linkage did you use for elevator?
For my .15 version of the Typhoon I had put a small 4x 350 mAh NiCd in the cooler below the motor.
As I said before, it will fly fine with that weight.
But don't make the first flights with a tail heavy center of gravity. Tail heavy helps for tight turns and low landing speed, but you should make only small changes to the center of gravity.
Timo
Light balsa reduces the weight of the basic wooden model around 1/3. The complete model can be built with light wood glue. Heavy epoxy is only needed if glass fibre is used to strengthen the wing joiners. There are lighter options than epoxy to make the motor compartment fuel save.
Where have you placed servos and receiver? What kind of servo linkage did you use for elevator?
For my .15 version of the Typhoon I had put a small 4x 350 mAh NiCd in the cooler below the motor.
As I said before, it will fly fine with that weight.
But don't make the first flights with a tail heavy center of gravity. Tail heavy helps for tight turns and low landing speed, but you should make only small changes to the center of gravity.
Timo
Timo Starkloff
User
The wing taper of the Tempest is slightly forward, so 1/3 will be tail heavy. The plan gives only an estimation, since I haven't build it on my own, yet. But I sent a message to Pascal who's Tempest is already flying, to measure center of gravity of his model.
www.rc-network.de
Timo
Corona-Gegenmittel: freier Plan für 1/12 Hawker Tempest
Hallo Patrick, im Dropbox-Verzeichnis der Tempest ist auch die Anleitung der Typhoon dabei, schau mal ob das deine Fragen zum Material beantwortet: https://www.dropbox.com/s/r2bb8nhld74ze4i/0066_Hawker%20Tempest_2020-03-20.zip?dl=0 Der Thread ist hilfreich weil es da noch mehr Bilder vom Bau...
Timo
Timo Starkloff
User
Pascal just wrote back, his weight is 1110 grams and center of gravity is 70 mm from the leading edge. From an earlier response, I know his Tempest is very manouverable, so it seems the center of gravity is at a rear point.
Looking good with British markings :-)
Timo
(Bild ist von Pascal F.)
Looking good with British markings :-)
Timo
(Bild ist von Pascal F.)
Engine mounted up-side-down is very impractical and problematic. When you fly alone - with no rush @ take-off then OK - and it looks nice. But for aircombat plane you use the simpliest and most robust solutions. Flooding/problems with starting/ rotating plane up-side-down to start the motor correctly/ much more prone to damage at landing etc - just a few I can name and I have experienced when mounted motor up-side-down.
