As noted balance and adding tail weight has been heavily discussed on this thread and the RCG one. Most added 80-100g to get a good balance and the balance most have found to their liking has been 10-15mm behind the book CG. Adding the TV tail makes the balance about perfect, like they designed it to have it.
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Official Freewing JAS 39 Gripen 80mm EDF Jet
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Originally posted by Evan D View PostAs noted balance and adding tail weight has been heavily discussed on this thread and the RCG one. Most added 80-100g to get a good balance and the balance most have found to their liking has been 10-15mm behind the book CG. Adding the TV tail makes the balance about perfect, like they designed it to have it.Freewing A-10 turbine conversion: http://fb.me/FreewingA10TurbineConversion
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"Very light batteries"... depends on your definition. Mine (I'm 8S) are 880g, not what I would call very light but I realize my set up is not stock. The TV unit weighed more than the portion of the fuselage it replaced plus the 80g of lead I added so for me it was perfect. And with that I am, and was, significantly behind the book CG. I don't remember, Jan, what was your set up? Did you put the TVs on it before you crashed it (I seem to recall you crashed or that may have been Jandro) and where were you balancing it at?
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Originally posted by Evan D View Post"Very light batteries"... depends on your definition. Mine (I'm 8S) are 880g, not what I would call very light but I realize my set up is not stock. The TV unit weighed more than the portion of the fuselage it replaced plus the 80g of lead I added so for me it was perfect. And with that I am, and was, significantly behind the book CG. I don't remember, Jan, what was your set up? Did you put the TVs on it before you crashed it (I seem to recall you crashed or that may have been Jandro) and where were you balancing it at?
I never had the stock EDF in it either, so my experiences are probably not representative. I had additional CG challenges due to a lighter than stock fan.
Then again it's no secret I love aft cg more than most :)Freewing A-10 turbine conversion: http://fb.me/FreewingA10TurbineConversion
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Due to the extra weight of the cockpit the model still needed lead in the tail so I decided to attempt making the air (or speed) brakes functional and add useful weight. This looks pretty rough but some filler, paint, and covers will help- but at least it works!
I fooled around with the hinging and eventually put the bottom one outside the skin- not scale but it's the only way the panel would open. I don't think SAAB got it right...
Tom
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Originally posted by James View PostThe Gripen TV unit is available now: https://www.motionrc.com/products/fr...or-upgrade-set
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Originally posted by Evan D View PostWhy are you saying too narrow TV? What did you do?
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I look forward to seeing the final result TangoVector.
Probably not something I will attempt, but I applaud the effort and hope you can get a good performance boost from the 90mm.
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Originally posted by Evan D View PostHmm I just realized even though I signed up to be notified for both the Gripen and MiG TVs I haven’t received a notice for either...
I signed up for Back in Stock Notify, but I didn’t get an email when the product came back in stock. Why did this happen? This is a common question and here’s why it happens. When a product is back in stock, our notification system compares the number of units that arrived to the number of people on the Back in Stock l
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