wjcalhoun

Tux
What datalogging and display software do you use with it?

mike early

If a plane is going 200mph straight down, does a GPS say it's standing still, since there's no lateral movement?

mike early

What does the receiver channel do? just provide electrical power? How is it powered otherwise?

capt1597

a GPS will give vertical speed. a GPS will indicate altitude and so the change in altitude over a given time shows speed. of course it is horizontle and verticle in combination that show speed through the sky. they sure are neat little instruments. capt

mike early

I almost bought the CanmoreGT-730F/L or the CanmoreGT-750F/L but it doesn't seem to log altitude. I'd like to know how high I am...

mike early

Damn, I like this one: http://www.magtechinc.net/SkyTraceGPS.htm
but it costs more...

ptuxbury

Yeah, I agree, Mike, I've seen that SkyTrace before and it looks cool.

The Canmore will log altitude, and you can see the plot in Google Earth. I just don't think it is super accurate since it uses triangulation to get the value. For a more accurate altitude you'd need a device that uses a barometric pressure transducer to determine altitude.

I have one of these to log altitude on my AP setup, and it works great. Unfortunately the guy who makes it has been searching for a new place to manufacture it for over a year now:
[link=http://www.hexpertsystems.com/zlog/]http://www.hexpertsystems.com/zlog/[/link]

Another great solution is the Eagle Tree stuff. GPS logging and baro pressure altitude logging at the same time. They are pricey though:
[link=http://www.eagletreesystems.com/MicroPower/micro.htm]http://www.eagletreesystems.com/MicroPower/micro.htm[/link]

Slats!

My Feedback: (1)

Hi great looking plane. How do you guys think a Saito 1.00 would fly this thing. After reading the thread I have to say I question it. Anyone try it. Thanks.

ptuxbury

From the sound of previous posts, I think a Saito 100 would be great for this plane. Sonny (Jet22b) has flown an O.S. 91 4-stroke in it and that provides enough power except in a couple of maneuvers. So I think the Saito 100 would take you right over the hump and give you all the power you'd need. Plus, it is over 3 oz lighter than the O.S. 91, so I think that would help out too.

ptuxbury

So I finally got around to mounting my ASP 1.20 4-stroke and started cutting the cowl out. As it turns out, my concerns about the spinner being too close to the cowl were unwarranted - I have about 1/8" clearance, which I think is perfect (see image). I think the little bit of thickness added by glassing the engine mount box helped.

It looks like the muffler for the 1.20 will have to come out the side of the plane instead of underneath it. I looked back at Sonny's images of his O.S. 1.20, and I could see that is what he had to do too.

Not too much left to go on this and I'll have it in the air, but I'm finding it hard to find the time to finish it up.

-Tux

frankeldan

Tux,

Do you have the original gear that you want to part with? Let me know. The plane is lookin good. We need to fly ours together at the field. Finish it up!!!!

Dan
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Slats!

My Feedback: (1)

Thats what I was wondering if it will put it over the "hump" that the 91 was having, it looks like it flies great in the GP video with a 91 but there is no way around it 9 pds is a heavy sucker. I have a turbo header muffler for the saito which bumbs the RPMs and is lighter than the original stock. Hope to make it light by using an 1100 A123 etc.....

I have overpowered stuff in the past this engine is coming off a cap 580, want to try a build and go the light route this go around, although it was sure nice having ballistic power. I will be using it for IMAC type of maneuvers, I really have to laugh at people that buy a plane like this for 3d, give me a break.

jet22b

Hey Tux;

Your Large Revolver is looking good!! You are right, I did have to come out the side of the cowling for the muffler!!!
Now get it done so Dan and yourself fly each other wings off!!

Sonny
aka
jet22b

ptuxbury

Dan,

I'm happy with the Dubro gear, so I'm willing to part with the OEM ones. We can either try to meet again, or I can just leave them in the trailer at the field for you. Let me know. I'm going to try to finish the plane this week.

albsurfer

How much does the Turbo Muffler bump the RPMs on your SAITO 1.00? I have a H9 Spitfire 60 with this engine installed and am curious whether it would be worth the price to replace the stock muffler with the Turbo version. The Spitfire also weighs in at 9 lbs.
Thanks.
Allen
albsurfer

Slats!

My Feedback: (1)

I would say about 300 so not a deal breaker. BUT it is so small you barley have to cut the cowl and you will get allot of comments on the sound hahah... I like it much better than the pitts I was using..

albsurfer

Thanks Slats! I didn't think it would be much, but I did hear a video with one installed on a 4S and it did sound great!!! Still, 300 RPMs can make a diff on the right plane.

Slats!

My Feedback: (1)

Hey Sonny how many RPMS is the OS 91 turning the 13X8 prop.

I got to say after an engine comparison the OS 1.20 FS SE is one heavy beast. I can see why the guy is trying the Saito 1.80 its the same listed weight as the OS 120.

I don't want to start an engine debate but when doing a comparison to the Saito 1.00 the HP and RPMs outputs are pretty close BUT there is almost a 10 oz diff which is insane.. I can turn a 15X6 at about 9400 RPM at a high altitude. I am thinking of going with a 13x11 or 13X10 on this. Will give a report once I fly it.


http://www.rcuniverse.com/product_gu...inecompare.cfm

Slats!

My Feedback: (1)

You would also love the size of it for your warbirds cowl. With the 90 degree adapter you can turn this thing any way you want up down side ways haha..

jet22b

Hi Slats;

Sorry for the late reply. Just came home from the fly field. The OS 91 II surpass turn the 13x8 prop at 8,200 rpm on the top side and 2,100 rpm on the low side. Yes the 1.20 is on the heavy side, but, also drink more fuel than the 91, but, not by much. The 91 will give me 15 min on a full tank and the 1.20 is right at 14 min. Like I said before in my flight report. the 91 hold is own in everything else but not in steep climb or inside loops. The 1.20 will do inside loops all day at half throttle, but the 91 must be at full power at the top to pull the plane over for the down side. Now if Great Plane come out with a 50cc Gas Power Gaint Revolver, that would be sweet!!!

Have a great week everyone!!

Sonny
aka
jet22b

mike early

That seems low?

I saw a magnum .70 turn an Evolution 13x8 at 9000rpm today at the field....

faulknej

My Feedback: (9)

My Magnum .91 turns an APC 13X8 at 9700.

jet22b

Mike;

I have a new tach and I will tie the plane down tomorrow and check it again!! I agree, that is a low reading!!
Will post the reading tomorrow!!

Sonny
aka
jet22b

Slats!

My Feedback: (1)

Has anyone mounted thier engine inverted on this. Seems like everyone is going by the book is there a reason why??

Thanks

ptuxbury

What percent nitro are you using with you Saito 100, Slats? I've read thatvthe Magnum 120 can turn an APC 15x8 at about 8800 RPM using 10% nitro, so it sounds like your Saito 100 has lots of power, especially for it's weight.