. I hope you have better luck reaching the G Man than I did. I sent him an email a week or so ago and he hasn't responded yet. 
Thank you David. I'm liking it more as I get closer to having it complete. Sorry you've not heard from Gerhard. I called him first thing this morning. He answered right away. Maybe shout at him on the tele?Hey Rob,
Your Extra is looking AWESOME with the Red Head on the nose. . . . .
Well heck, how about this... you already have my attention and you know I'll respond anytime you post... just go head and send the engine to me instead.
.
Oh you needn't worry bout that. If it says 3W on it, I am sure I won't be disappointed.I would send the engine to you, but I know you'd be dissappointed because its not a Red Head and the last thing I woujld want to do is dissappoint a Buddy like you. . . . . . .
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The 330 should come in around 37-39 pounds. I'm shooting for 35-37. My SD 260 was 42 and some change with fuel. However the newer designed airframes are much much lighter as per pilots and builders desire more agile airframes. Most any 40 center flies really well with a 150cc class engine. A lot of guys are using the 170's because they want more performance. As for the 4 cylinders, most... not all, but most are hung on a 40 percent for IMAC reasons. Or those that just want the torque and glass smooth engine. However, my 157cs performs as good or better than most 170cc engines. In fact the 32x10 Falcon really needs to go and I need to up the size. A lot of DA 200 owners use the same prop as my 157cs. I'm thinking of going to a 33x10 or a 32x11. I have a 32x11 on my Devil Dub 170. It is absolute beast for a classic 170. I may bump it to a 33x11 or 33x11w. I have a perfect opportunity to do some testing as I have a 33x11w on the 212. So I can do a lot of prop swapping before I shell out the hard earned dead presidents. Back to your original question though. Any newer 40 percent plane will fly great with a 150cc class engine. Look at the new Extreme Flight 125" Extra. YouTube SupaTim or go to Northwest RC. That plane will probably huck with a 120cc engine. But then again, put an engine on a brick and SupaTim will make it do
that will blow your mind.
Yes thanks for that never played in that size so not sure of my self and what it takes to make a good airplane. Thanks for the advice and help.The 330 should come in around 37-39 pounds. I'm shooting for 35-37. My SD 260 was 42 and some change with fuel. However the newer designed airframes are much much lighter as per pilots and builders desire more agile airframes. Most any 40 center flies really well with a 150cc class engine. A lot of guys are using the 170's because they want more performance. As for the 4 cylinders, most... not all, but most are hung on a 40 percent for IMAC reasons. Or those that just want the torque and glass smooth engine. However, my 157cs performs as good or better than most 170cc engines. In fact the 32x10 Falcon really needs to go and I need to up the size. A lot of DA 200 owners use the same prop as my 157cs. I'm thinking of going to a 33x10 or a 32x11. I have a 32x11 on my Devil Dub 170. It is absolute beast for a classic 170. I may bump it to a 33x11 or 33x11w. I have a perfect opportunity to do some testing as I have a 33x11w on the 212. So I can do a lot of prop swapping before I shell out the hard earned dead presidents. Back to your original question though. Any newer 40 percent plane will fly great with a 150cc class engine. Look at the new Extreme Flight 125" Extra. YouTube SupaTim or go to Northwest RC. That plane will probably huck with a 120cc engine. But then again, put an engine on a brick and SupaTim will make it do
Something to keep in mind. My son has a brand new never started SD/TOC 40% Yak 54. Same size as my 129" Pilot Behemoth Yak. It was designed with a DA 150 in mind. Also, David Mahan, the Big Kahuna... he's been flying a 40% Pilot Extra 300 with a DA 150 for years. It is amazing how that plane flies. Go to YouTube and search Huckfest 2016 or 2017. How a plane flies in my opinion is not all engine. It is also pilot skill.
Does this answer your question?
