Hopper tank
02-20-2002, 03:31 PM
#1
Hopper tank
Hey guys!
I bought a yellow F-18 single airframe,and installed dynamax/OS91/JMP pipe/BVM in-flight mixture.It has the yellow conformal tanks.Do I need a hopper tank?If so, where can I put it?There's really no room.The instructions say it's not needed w/conformal tanks,but I'd like to hear from anyone who's done this.Also,it's set up eith tailerons/no ailerons,flaps and no rudder.I'm pretty much restricted to grass,but it is smooth,and huge(1000+yds)Any advice/suggestions would be appreciated!
Thanks,
Erik
I bought a yellow F-18 single airframe,and installed dynamax/OS91/JMP pipe/BVM in-flight mixture.It has the yellow conformal tanks.Do I need a hopper tank?If so, where can I put it?There's really no room.The instructions say it's not needed w/conformal tanks,but I'd like to hear from anyone who's done this.Also,it's set up eith tailerons/no ailerons,flaps and no rudder.I'm pretty much restricted to grass,but it is smooth,and huge(1000+yds)Any advice/suggestions would be appreciated!
Thanks,Erik
02-20-2002, 04:01 PM
#2
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Hopper tank
Erik
If you have the Y/A single with conformal tanks, you can add the hopper tank in the front hatch.
I actually replaced my conformal tanks with a singe 32 oz tank and installed it in the front hatch.
BTW, what version Y/A F-18 single do you have. The original ones did not come with removable front hatch
If you have the Y/A single with conformal tanks, you can add the hopper tank in the front hatch.
I actually replaced my conformal tanks with a singe 32 oz tank and installed it in the front hatch.
BTW, what version Y/A F-18 single do you have. The original ones did not come with removable front hatch
02-20-2002, 04:26 PM
#4
Hopper tank
Hi!
I bought it built so I don't know which version,but it doesn't have a removable front hatch.
Man,I don't wanna take out those conformal tanks unless I have to,I'd have to pull the fan etc.,and it is a ***** working in there!!!Are you telling me that the conformals don't work well? 
If so, I think I'm gonna cry.The reason I bought a built jet is I don't have alot of time(airline pilot with 2 kids and too many other hobbies),and I already had to redo half of the stuff because the builder wasn't a shining star.I'd really like to make it work as is,but I won't sacrificae reliability.Thanks,
Erik
I bought it built so I don't know which version,but it doesn't have a removable front hatch.
Man,I don't wanna take out those conformal tanks unless I have to,I'd have to pull the fan etc.,and it is a ***** working in there!!!Are you telling me that the conformals don't work well? If so, I think I'm gonna cry.The reason I bought a built jet is I don't have alot of time(airline pilot with 2 kids and too many other hobbies),and I already had to redo half of the stuff because the builder wasn't a shining star.I'd really like to make it work as is,but I won't sacrificae reliability.Thanks,Erik
02-20-2002, 04:38 PM
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f-18
i got a 16 oz tank in the a-4
it is behind the nose gear
it is almost ready to fly
getting ready to leave out of newark
for florida jets today
vinny
if you can stop by floyd bennett
some day
the a-4 is the jet hanger hobbys one
it is behind the nose gear
it is almost ready to fly
getting ready to leave out of newark
for florida jets today
vinny
if you can stop by floyd bennett
some day
the a-4 is the jet hanger hobbys one
02-20-2002, 04:47 PM
#7
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Hopper tank
Hmmmmm. I thought we are talking about F-18 and not F-4.
You can fly it without a hopper tank, but if you can squeeze in a 3-4 oz tank somewhere, it will be better.
You can fly it without a hopper tank, but if you can squeeze in a 3-4 oz tank somewhere, it will be better.
02-20-2002, 05:09 PM
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F-18 C.G and other info
Eric,
Just to let you know that the CG is 12.5" from the trailing edge NOT 12" per the instruction. my friend found out the hard way. I have some construction pictures on my web page. F-18 If you need pictures of any areas I don't have I can take them for you. I put my 2 oz. header tank in the front hatch just above the starter cone on the fan. Mine has one flight on it. It flew great. I hope to have a lot of fun with it this summer. One problem I had was with the landing gear. Even with flat spots on the shaft mine would still turn. I drilled and taped another hole on the other side and it seems to work great. Now there are two set screws instead of one. If you have any questions please e-mail me.
Thanks,
Craig
Just to let you know that the CG is 12.5" from the trailing edge NOT 12" per the instruction. my friend found out the hard way. I have some construction pictures on my web page. F-18 If you need pictures of any areas I don't have I can take them for you. I put my 2 oz. header tank in the front hatch just above the starter cone on the fan. Mine has one flight on it. It flew great. I hope to have a lot of fun with it this summer. One problem I had was with the landing gear. Even with flat spots on the shaft mine would still turn. I drilled and taped another hole on the other side and it seems to work great. Now there are two set screws instead of one. If you have any questions please e-mail me.
Thanks,
Craig
02-20-2002, 07:31 PM
#10
hopper tank
Ghost rider,
we are talking about an F-18,but I knerw Vinny was doing the A-4,and I was wondering how he was doing it.
Craig,
Thank you for the info.I spoke to Charles from yellowa/c,and he told me about the c/g deal.I tried your website,and it didn,t work.Do you have ailerons or tailerons?Are you using OS/Dynamax/JMP?Did you fly it off grass or pavement?How long of a t/o roll?Did you use flaps?Whats your impressions?
Thanks,
Erik
we are talking about an F-18,but I knerw Vinny was doing the A-4,and I was wondering how he was doing it.
Craig,
Thank you for the info.I spoke to Charles from yellowa/c,and he told me about the c/g deal.I tried your website,and it didn,t work.Do you have ailerons or tailerons?Are you using OS/Dynamax/JMP?Did you fly it off grass or pavement?How long of a t/o roll?Did you use flaps?Whats your impressions?
Thanks,
Erik
02-20-2002, 07:51 PM
#11
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F-18
Eric,
I fixed my link above. Mine has ailerons and flaps. I have OS/Dynamax/JMP with a BVM mixture control. Mine took a lot of runway to take off, but the nose was slightly angled down. I raised the nose up so there is some rake in it. It should not be a problem now. If you have the semi-scale gear, taking off grass might be difficult, but I've never tried it or senn it done. I had about 2" of elevator travel for take off. It's a lot, but it helped. Then switch to low rates once airborn. I haven't weighed mine yet. I had to add about 6oz of lead to the front.
Thanks,
Craig
I fixed my link above. Mine has ailerons and flaps. I have OS/Dynamax/JMP with a BVM mixture control. Mine took a lot of runway to take off, but the nose was slightly angled down. I raised the nose up so there is some rake in it. It should not be a problem now. If you have the semi-scale gear, taking off grass might be difficult, but I've never tried it or senn it done. I had about 2" of elevator travel for take off. It's a lot, but it helped. Then switch to low rates once airborn. I haven't weighed mine yet. I had to add about 6oz of lead to the front.
Thanks,
Craig
