Global Extra 300l - Electric to gas conversion
05-29-2003, 06:00 PM
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Global Extra 300l - Electric to gas conversion
Yes, it is a crazy idea, but do you guys think i could take a Global Extra 300l (Heres a link: http://www2.towerhobbies.com/cgi-bin...?&I=LXDCG3&P=7 ) and put an AP .061 engine (And heres another link: http://www2.towerhobbies.com/cgi-bin...?&I=LXSD22&P=7 ) or any other samll engine in it? I really like small planes, and i really like Extras, and i really hate electric! Any eggspertz out there know if it would work? Yes, i am crazy...
05-30-2003, 12:34 PM
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Global Extra 300l - Electric to gas conversion
its been done a few times, i converted a jamara extra(EXACTLY the same model, dofferent colour scheme) to a sc .12.
flies so well you wouldnt believe. ill post a picture of it soon
flies so well you wouldnt believe. ill post a picture of it soon
05-30-2003, 02:41 PM
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Global Extra 300l - Electric to gas conversion
you used a .12? Sounds like a .061 woundn't have enough power. Would a .10 work? How well did everything fit?
05-31-2003, 01:17 AM
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Global Extra 300l - Electric to gas conversion
Watch the weight! Small stuff flies well only with light wing-loading. 28 oz for 200sq inch gives you 20 oz/sq inch. It is a lot. I would think, that this plane will fly well if it weights 20 oz or less.
On the other hand, for acrobatic flying (not just cruising around) you need power. AP .061 will give you something like 14-18 oz static thrust. With 28 oz total flying weight it is just not enough.
Try to go somewhere about 1:1 thrust to weight ratio (or more).
I don;t know how heavy the plane alone is, but you might get away with AP .061 if plane weights less then 10 oz. If not, I don't see fun here.
I have Lazy Bee with 288 sq inch that weights 12 oz (ready to fly). With Norvel .061 it is fun to fly. On the other hand I have ME-109 with 198 sq inch (36" wingspan) and weights 32 oz. It fies because I have Magnum .15 on it, but this SOB does tip stall, snaps, and is pain in a neck to land. It does even flat spin like the real one (it lost 100 ft for recovery).
Look at my FlyZone ME-109 powered by cox .020 (20 inch wingspan). It is a good flier because it weights 5oz total.
Conclusion: Small is beautiful but only if kept light.
RysiuM
On the other hand, for acrobatic flying (not just cruising around) you need power. AP .061 will give you something like 14-18 oz static thrust. With 28 oz total flying weight it is just not enough.
Try to go somewhere about 1:1 thrust to weight ratio (or more).
I don;t know how heavy the plane alone is, but you might get away with AP .061 if plane weights less then 10 oz. If not, I don't see fun here.
I have Lazy Bee with 288 sq inch that weights 12 oz (ready to fly). With Norvel .061 it is fun to fly. On the other hand I have ME-109 with 198 sq inch (36" wingspan) and weights 32 oz. It fies because I have Magnum .15 on it, but this SOB does tip stall, snaps, and is pain in a neck to land. It does even flat spin like the real one (it lost 100 ft for recovery).
Look at my FlyZone ME-109 powered by cox .020 (20 inch wingspan). It is a good flier because it weights 5oz total.
Conclusion: Small is beautiful but only if kept light.
RysiuM
05-31-2003, 03:38 PM
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I converted the same plane I used a LA 10 and it just flew it
I should have used a LA 15. The balance was perfect and I side mounted the engine. I used dual ailerons servos because the one servo could not handle the new speed for aerobatics. It was a blast.
Jim
I should have used a LA 15. The balance was perfect and I side mounted the engine. I used dual ailerons servos because the one servo could not handle the new speed for aerobatics. It was a blast.
Jim
05-31-2003, 08:22 PM
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It is easy to fly now more power and quicker responce. You will enjoy it. Just fuel proof the fire wall and were you can so the glow fuel does not destroy your plane
Jim
Jim
