R/C Ray

My Feedback: (6)

Mine, unfortunately weighs in at 25 lbs. I can't remember the last time I built a plane that was this tail heavy? The finished weight was 20 lbs. then my friend came over with his balance scales. I had to install 5 lbs in the nose!! Try to find a place to install 5 lbs....just about impossible! The plane flys great and impressive in flight. The weights however, tend to add to engine vibration and reeks Havoc on the plane's detail. Good Luck, hope it works out better for you.

Ray.

Grimracer

Thanks.. my plane as the Fuji 34 4 banger in it.. I had a buddy of mine spin the numbers for me and this is what we came up with. (see below)...

Never the less I have a tick more work to do but its close.. keep yaall posted as we get ready to fly it.

¼ balsa USA D7
2225 sq in area
That’s 15.45 sq ft. Say the weight is 25 lbs flying. That’s 400 ounces. Wing loading is 25.9 oz/sq ft. computed stall speed should be 19mph. You generally want a static pitch speed of 2.5 to 3 times times stall speed, so 47.5
To 57mph should be the target range. Calculating 6000 rpms with a 22X8 (to approximate the 22X6X10) results in 394 ounces static thrust, 45.4mph pitch speed. Thrust good for what you want with that plane, pitch speed close but a touch under. If it will handle a 22X10 you should be right in the perfect range both thrust and speed. As long as it will stay at or above 5600 rpms. If not, I’d sacrifice some static thrust for a bit more pitch speed which would allow you to throttle back a lot more in flight. That would mean something like a 20 or 21 inch prop with 10~12 pitch.

vertical grimmace

My Feedback: (1)

I had to add 2 lbs of lead to balance. It is important to think light in the tail when building these planes. Many times the tail skid etc. is the culprit. What engines are you guys using, as 25lb is a little high. Mine started with a G38, but was very anemic, so I installed a DLE 55 and it is a much better plane now. The large prop really helps on landings.

skyarrow1

Please add me to the list...

Mike

Karp050555

what list?

Corsair2013

My Feedback: (2)

Here is the picture of my new BUSA 1/4 Cub kit. Please add me to the brotherhood...........

Keith

Karp050555

He's making a list and checking it twice. Gonna find out if your hair's full of lice.

3136

It's not a list it's a brotherhood, introduce yourself, tell us about your plane and show us a pic of it.
If we just compile a list, how interesting would that be?

3136

BUSA brothers
#1 3136 Victoria, Australia
#2 Jeffo MI USA
#3 ARUP KY USA
#4 RCKen OK USA
#5 mattnew MA USA
#6 surmovik60 VA USA
#7 GerKonig PA USA
#8 Granpooba NY USA
#9 radfordc KS USA
#10 balsa brain FL USA
#11 jwrich OK USA
#12 wwoneguy MD USA
#13 vertical grimmace CO USA
#14 rcmiket TX USA
#15 bpoates25 FL USA
#16 PiperDriver IL USA
#17 68goat AL USA
#18 jlsimon NJ USA
#19 pat s NC USA
#20 pending IN USA
#21 Steve Percifield IN USA
#22 opol MN USA
#23 Zero TX USA
#24 tonyos VA USA
#25 b206 IL USA USA
#26 LonnieMcc MS USA
#27 eindecer3 TN USA
#28 flyer35 NY USA
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#31 Kwikfli KS USA
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#33 Ikruse OK USA
#34 bobbailey VA USA
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#38 SRQFlyer FL USA
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#42 Hrannar Iceland
#43 lowbubba OH USA
#45 FokkerD7 OH USA
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#47 Wagon1 FL USA
#48 darren 4 WI USA
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#57 AMA74894 MN USA
#58 squidman TX USA
#59 M_Callahan OH USA
#60 Karp050555 PA USA
#61 optech CA USA
#62 ashby NSW Australia
#63 R/C Art IN USA
#64 on_your_six MD USA
#65 Highflyer2 GA USA
#66 dddaviddean NJ USA
#67 Quagmire CA USA
#68 pending CA USA
#69 ratshooter TX USA
#70 TXAG96 MI USA
#71 R/C Ray NY USA
#72 feep NH USA
#73 sdcranford MO USA
#74 buzzard bait NY USA
#75 chadasmus KY USA (BUSA Team Pilot, Builder and Designer)
#76 fokv25 IN USA
#77 Dynamic! WI USA
#78 WinterHawke WI USA
#79 t6racer NSW Australia
#80 NM2K GA USA
#81 rcjunky67 FL USA
#82 AndyF IN USA
#83 freefall2907 IA USA
#84 a65l VA USA
#85 Grimracer IL USA
#86 Corsair2013 UT USA
#87 Karp 050555 PA USA

Welcome Corsair, keep us updated, nice kit!

Karp050555

Here's my 1/4 scale DR-1 done in the scheme of the bad guy in Flyboys. Powered by an NGH 38cc FSG swinging a 16-8 prop.

3136

Welcome aboard Karp, list above edited.
How are you finding that NGH?

Karp050555

I've only had it running once but it did ok. At first it was running rough and then I saw I had some loose bolts so I shut it down, tightened everything, and restarted the engine. It was now smooth as silk. It transitioned well and sounded great. This is a well built quality engine and well worth the price. It doesn't have a muffler but it only needs the pipe it comes with. I put on a Higley nut to dress it up and for using my starter. I guess in time I won't need the starter. It's done with break in at 25 to 1 so I'll now run it at 32 to 1 and get it into the air ASAP. It looks like a big OS with a blue head and should perform well on a 1/4 scale WWI plane.

RCKen

My Feedback: (9)

Grimracer,
I've interviewed you many times in Toledo doing the "latest greatest Aquacraft boats". I didn't realize you were such a skilled scale plane guy as well. You have earned a new level of respect in my book my friend. Missed seeing you in Toledo this year. Carol said you were off in Wisconsin doing some boat race or something like that. Hopefully we'll get to say "hi" next year in Toledo.

Ken

chadasmus

My Feedback: (1)

We are currently in the process of creating more 1/6 scale kits, you will be able to find a home shortly for your Spandau guns

vertical grimmace

My Feedback: (1)

Friggin awesome!

3136

Just got down from the mountains and found this news, I'll second Verticals comment Friggin awesome!!

vertical grimmace

My Feedback: (1)

Pretty much any Fokker offering they come up with in 1/6th scale I will buy immediately. My personal choice would be a DVI.

ARUP

Pfalz D-III or IIIa pretty please! Any German 'two holer' would be cool. I'm partial to the Aviatik C1.

lkruse

My Feedback: (42)

How about a matched WWI pair--a Fokker DVII and an SE-5a? I'll take one of each right now!

chadasmus

My Feedback: (1)

no promises on dates or models, but there is a possibility that a 1/6 scale D.VIII is on my bench right now with a 1/6 scale DR.I to follow shortly after...

chadasmus

My Feedback: (1)

I will see about getting some pictures posted here in the next few weeks.

vertical grimmace

My Feedback: (1)

Well, a DR1 and a DVIII are so close to a DVI, that I may just get the kit, and scratch the wings for a DVI. I will have one, one way or another eventually.

Maybe even better yet, BUSA could come out with a Fokker DVI in 1/4 scale! That would really make me happy.

3136

Bugger, I already scratched a D8 in that size (not very well though) DR.I might go on my list.

Hey Chad why don't you start a poll thread asking what would be the favourite 1/6 plane the customers would like?

I personally would like a D7 and Albatross, you just can't please everyone though.

vertical grimmace

My Feedback: (1)

I have to assume that the more complicated models, like the Albatros and the Pfalz are less likely. It would seem an Albatros in 1/4 scale should come first, as I know that would be a good seller. The Fokker's are easy as they are more straightforward designs and less complicated. Not to mention, just blowing them down in scale from the larger offerings is doable.

smkrcflyer

I'll get in line for a Fokker DVI in 1/4 scale.