Jetco Shark
 

Hi every body

after my first experience in C/L with mercury viper I made another viper too
and now I'm thinking of a jetco shark junior (a profile stunt) which seems to be a more advanced F2B
it has a wing span of about 36.5 inches but I made an enlarged copy of the plan with 44" span
I would be very glad to know if this bigger version will fly as well as the original size or not? will I face any problem on CG locatin?
I'm going to use a .36 engine on this bird
infact I was searching for a 35 size PROFILE stunt plan on the web and found that jetco shark 15 might be a good choice after being enlarged because of its appearance, ease of construction & possibility of using flaps
any opinions would be helpful

Regards,
Ehsan
http://www.rcuniverse.com/forum/atta...mentid=2022940http://www.rcuniverse.com/forum/atta...mentid=2022941http://www.rcuniverse.com/forum/atta...mentid=2022942

I have built and flown two of the original size Shark 15s powered with Cox TD 09 glow engine. I was very well pleased with them. I built one from plans, the other from a Walter Umland kit. The CG is right for that airplane. Older airplanes like that, with smaller tail and shorter tail moment need a forward CG. I cheated a little and did not use as much wing offset as shown on the plans. I also used adjustable leadouts and weight box. I think you will end up with a very good airplane and be pleased with the result.

Hi Ehsan, I'm sure the model will fly very well. At 44" what you've got would go well with about a .25. For a .36 I'd go even bigger - maybe 52" or 54" span.

Steve