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#1
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I am looking to start a homebuilt project in 2004. My new career keeps me at
home with much free time during the day, and a two-car garage at my disposal. I have researched many different companies and aircraft (http://www.homebuilt.org/kits/kits-acftdesc.html) and have pretty much made up my mind to go with an RV-9A. My dilemma is that I know next to nothing about homebuilding and aircraft engines. It seems that to start building an aircraft, that you need to know which engine (not an auto conversion) and which instruments will go into the aircraft before starting (leaning towards the BMA EFIS/One). Is there any literature that would make the process of choosing go any easier? I have read almost everything I can and everyone seems to have an opinion. I am looking for factual information to help me make the correct choices. My first (correct?) choice was to look for a plane which suited the type of flying that I would be doing and that I felt that I could complete. This will be a large investment for me and I really don't want to end up as many homebuilt projects seem to...18,000 pieces of an airplane jammed into the corner of a garage, gathering dust, so any help is greatly appreciated. -- //// (ó ò) ===========o00o=(_)=o00o========= |
#2
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On Sat, 13 Dec 2003 01:23:06 -0600, "BoscoBob"
wrote: :I am looking to start a homebuilt project in 2004. My new career keeps me at :home with much free time during the day, and a two-car garage at my :disposal. : :I have researched many different companies and aircraft ![]() :up my mind to go with an RV-9A. : :My dilemma is that I know next to nothing about homebuilding and aircraft :engines. It seems that to start building an aircraft, that you need to know :which engine (not an auto conversion) and which instruments will go into the :aircraft before starting (leaning towards the BMA EFIS/One). Is there any :literature that would make the process of choosing go any easier? I have :read almost everything I can and everyone seems to have an opinion. I am :looking for factual information to help me make the correct choices. My :first (correct?) choice was to look for a plane which suited the type of :flying that I would be doing and that I felt that I could complete. You've done VERY well so far. You can't go wrong with the RV. But you're not correct about needing to decide on engine and instruments now. As long as you're sticking with the Lycoming (a good choice, certainly the lowest risk way to go) the only decision is O-235 or O-320. They go on the same engine mount and cowl. Virtually the entire engine installation will be the same, except for the prop. You can decide between the two when you get the airframe done, or any time between now and then. As for avionics - put them off until the VERY last minute. 10 years ago GPS barely existed. Since then Terra and Trimble, Magellan have gone, Garmin has become the top dog, color moving map IFR coms are commonplace. There will be a LOT of changes in the next 3 years. The best box you can buy today will be marginally obsolete by then - useful, but not what you'd really want to buy. The best advice I can give is buy every fast build option you can, then enjoy the process of building. |
#3
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![]() richard riley wrote: You've done VERY well so far. You can't go wrong with the RV. But you're not correct about needing to decide on engine and instruments now. As long as you're sticking with the Lycoming (a good choice, certainly the lowest risk way to go) the only decision is O-235 or O-320. They go on the same engine mount and cowl. Virtually the entire engine installation will be the same, except for the prop. ++++++++++++++++++++++++++++++++++++++++++++ Not exactly. There are CONICAL and DYNAFOCAL #1 & #2 engine considerations. Each style requires its own particular engine mount. The dynafocal wide deck Lycoming is the latest way to go. Check with Van, google.com, etcetera for more details. Barnyard BOb -- over 50 years of successful flight |
#4
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On Sat, 13 Dec 2003 05:38:51 -0600, RR Urban wrote:
: : :richard riley wrote: : :You've done VERY well so far. You can't go wrong with the RV. But :you're not correct about needing to decide on engine and instruments :now. : :As long as you're sticking with the Lycoming (a good choice, certainly :the lowest risk way to go) the only decision is O-235 or O-320. They :go on the same engine mount and cowl. Virtually the entire engine :installation will be the same, except for the prop. :++++++++++++++++++++++++++++++++++++++++++++ : :Not exactly. :There are CONICAL and DYNAFOCAL #1 & #2 engine considerations. :Each style requires its own particular engine mount. :The dynafocal wide deck Lycoming is the latest way to go. :Check with Van, google.com, etcetera for more details. Of course Bob is correct. There are conical mount 235's, but they're all pretty old now, and not many of them around. The 320 Dynafocal II's were off a Piper twin, and are also pretty rare, (a long prop extension and a heavy prop put the engine CG way out toward the prop, so the dynafocal angle changed) but I happen to know of a zero timed one with 10:1 pistons for sale. Even so, all the possible engine mounts are going to attach to the same places on the firewall. So go ahead and build, the worst thing that could happen is that you have to trade in an engine mount for a slightly different one. And given the sheer quantity that Van sells, I'd think trades like that would be pretty easy. Like Bob, I'd assume a newer, wide deck 320 as the way to go. You'll never regret a 35% increase in horsepower - there is no such thing as too much horsepower. ![]() But seriously, hold off on the avionics. I happen to be a UPSAT (now GarminAT) dealer, loosing my dealership because of the sale. For the next week or so I can get you some really, really good prices on CNX80's and stuff. But don't buy from me now, it would just sit and get obsolete on the shelf. |
#5
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![]() "BoscoBob" wrote in message ... I am looking to start a homebuilt project in 2004. My new career keeps me at home with much free time during the day, and a two-car garage at my disposal. I have researched many different companies and aircraft (http://www.homebuilt.org/kits/kits-acftdesc.html) and have pretty much made up my mind to go with an RV-9A. Good idea. Those O-320's Urbie and Rickie are talking about, you know, with the dynafocal mounts --- the dynafocals are supposed to absorb more vibration than the old conical mounts do. The Lord mounts suck up more vibes too. You might look into the O-360 Lycoming for this airplane too. The XP-360 is a lotta bang for the buck. It's not certified but it comes from a rock-solid background with good reputation. |
#6
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In article , "BoscoBob"
writes: I am looking to start a homebuilt project in 2004. My new career keeps me at home with much free time during the day, and a two-car garage at my disposal. I have researched many different companies and aircraft (http://www.homebuilt.org/kits/kits-acftdesc.html) and have pretty much made up my mind to go with an RV-9A. Good choice. My dilemma is that I know next to nothing about homebuilding and aircraft engines. It seems that to start building an aircraft, that you need to know which engine (not an auto conversion) and which instruments will go into the aircraft before starting (leaning towards the BMA EFIS/One). Is there any literature that would make the process of choosing go any easier? I have read almost everything I can and everyone seems to have an opinion. I am looking for factual information to help me make the correct choices. My first (correct?) choice was to look for a plane which suited the type of flying that I would be doing and that I felt that I could complete. There is no shortage of opinions on everything and you will get a lot of them from this post. The most important thing to learn is that this is not an instant project and will probably take you several years to complete. The choice of aircraft you have indicated is a good one for several reasons but the most important is the built in support group available from Vans and all those who have already built their planes. Don't be too concerned about the subjects listed above right now, you will have plenty of time to study and learn what you need to know and to make those informed decisions on engine and instrumentation. From what you have said above, I think you have already made a good start. This will be a large investment for me and I really don't want to end up as many homebuilt projects seem to...18,000 pieces of an airplane jammed into the corner of a garage, gathering dust, so any help is greatly appreciated. Nothing is going to guarantee that you won't end up with a dust collector. Life happens and things change which may make your project take a lot longer than anticipated. The only thing you can really do is make the commitment and try and set a schedule that you and your family can live with. Good Luck and happy building. Bob Reed www.kisbuild.r-a-reed-assoc.com (KIS Builders Site) KIS Cruiser in progress...Slow but steady progress.... "Ladies and Gentlemen, take my advice, pull down your pants and Slide on the Ice!" (M.A.S.H. Sidney Freedman) |
#7
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You might look into the O-360 Lycoming for this airplane too.
The XP-360 is a lotta bang for the buck. If it were me (and it almost was), I'd do the O-320. You don't have enough tanks on the -9 to properly feed a -360, and you don't need the extra weight. Plus, the -9 has enough wing that you don't need a ton of power to drag it into the air. Ed Wischmeyer |
#8
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Ed that is probably silliest thing I have ever seen you write.
Jerry Ed Wischmeyer wrote: You might look into the O-360 Lycoming for this airplane too. The XP-360 is a lotta bang for the buck. If it were me (and it almost was), I'd do the O-320. You don't have enough tanks on the -9 to properly feed a -360, and you don't need the extra weight. Plus, the -9 has enough wing that you don't need a ton of power to drag it into the air. Ed Wischmeyer |
#9
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![]() "Ed Wischmeyer" wrote in message ... You might look into the O-360 Lycoming for this airplane too. The XP-360 is a lotta bang for the buck. If it were me (and it almost was), I'd do the O-320. You don't have enough tanks on the -9 to properly feed a -360, and you don't need the extra weight. Plus, the -9 has enough wing that you don't need a ton of power to drag it into the air. Ed Wischmeyer Yeah, I think I'm with you on that one, Ed. The O-320 E2D with dynafocal mounts and 150 HP would be a good engine and you could gas it up with mogas if you needed to. Or does Van object to mogas? |
#10
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![]() You might look into the O-360 Lycoming for this airplane too. The XP-360 is a lotta bang for the buck. If it were me (and it almost was), I'd do the O-320. You don't have enough tanks on the -9 to properly feed a -360, and you don't need the extra weight. Plus, the -9 has enough wing that you don't need a ton of power to drag it into the air. Ed Wischmeyer Ed that is probably silliest thing I have ever seen you write. Jerry +++++++++++++++++++++++++++++ Why do you say this, Jerry? I think Ed is on extremely safe and sane ground. Next thing you know, someone is going to defend morphing the RV-4 series into Harmon Rockets and its hotrod clones. Van as a most successful designer could offer a version. Anyone ever stop to think of all the *PRACTICAL* reasons why he does not? Barnyard BOb - over 50 years of successful flight |
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