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May 14, 2007, 03:05 PM
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Sig Rascal 110


Hi guys,

Here's my Rascal 110 conversion. I just wanted something to cruise around with and do touch and go's. Always loved the looks of this airplane and thought it would make a great conversion. At 120 watts/pound not a hot rod but will do good sized loops and has decent vertical on the uplines for hammerheads, etc.

Specs:

weight: 13 lbs.
motor/esc: E-Flite Power 110/Jeti Opto 77
batteries: 2 Flight Power Evo 20 4S1P 5000ma (in series)
watts/amps with APC 19X8: 1570/55.4
Watts/lb.: 120
Kool Flight 6V bec
Spektrum DX-7



Thanks for letting me share.

Bob
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May 16, 2007, 09:18 PM
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text
Last edited by DT56; Apr 01, 2008 at 06:43 PM.
May 16, 2007, 11:37 PM
volare est vivere
ray foley's Avatar
I wonder how the power 160 would light up that airframe? Hmmm....

ciao -rjf
May 17, 2007, 07:34 AM
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Ray,

I think there is plenty of adjustment in the motor mount to allow for the extra length of the power 160. With the 160 and ten cells it would be ballistic. I find myself flying around at half power as it is.

DT56,

I agree, the Rascal is a great looking classic design. By the way, I have flown the same 550 for almost 16 years now and nine years of 501's before that. Add the Rascal in there and apparently I'm addicted to airplanes that don't go very fast!

Bob
May 17, 2007, 12:05 PM
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Doubletap's Avatar
Wow!!! That's looks great. I was thinking about doing the same, although I would power it with 10S2P A123 setup. How do you access the batteries? Did you fabricate a hatch on the bottom?

Doubletap
May 17, 2007, 05:31 PM
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Doubletap,

The batteries sit on a tray that comes and goes through the opening in the bottom of the cowl and then through the opening in the firewall below the motor mount. You can kind of see the opening in the firewall in the middle picture above but I will try to take some pictures tonite to show a better view. You don't have to remove the cowl to remove the batteries.

Bob
May 18, 2007, 09:03 AM
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Here's some pictures of the battery tray,etc. The rear of the tray keys in to a slot formed by the main gear mount and some cross pieces glued to the bulkhead. The front is held by the 4-40 bolts that go through the firewall and into blind nuts on the back side. Sorry the pictures aren't that great but it was late and I was tired.

Bob
May 18, 2007, 09:32 AM
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Doubletap's Avatar
Bob,

that's a VERY slick and professional setup! Now I'm just hoping there's enough room for me to get 2 - 10S1P A123 packs into the same available space as the cross section of the Rascal 110 fuselage is actually very slim relative to it's large span.

Could you tell me the dimensions of the cutout you made in the firewall?

Thanks,

Doubletap
May 18, 2007, 09:54 AM
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DT,

I'll measure when I get home tonite but probably won't be able to post those until monday. It's basically the width of the inner edge of the cutouts in the forward bulkheads. I think you could go another 1/4" on each side if you had to.

By the way, there was an extra servo cutout in the tail so I mounted the rudder servo back there rather than up front with the pull/pull and the balance worked out perfectly.

Thank you for the kind words! Please post some pictures as your's takes shape.


Bob
Last edited by C550Driver; May 18, 2007 at 10:00 AM.
May 21, 2007, 01:52 PM
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DT,

The hole in the firewall is 3 3/8" wide by about 2 3/8 " high. There's room to go a little wider and maybe another 3/4" higher.

Bob
May 21, 2007, 07:55 PM
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Last edited by DT56; Apr 01, 2008 at 06:41 PM.
May 22, 2007, 06:56 AM
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We flew a demo in a CJ2+ yesterday but I have very little EFIS experience and, just like they say, I now know how the dog feels when he's watching TV! A fantastic airplane though. FL 400, 410TAS, 820pph are not numbers with which I am familiar.

Bob
Last edited by C550Driver; May 22, 2007 at 09:53 PM.
May 26, 2007, 12:06 AM
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D Tap,

How much would your 10S 123 packs weigh? Just curious how your CG might work out.

Bob
Jun 01, 2007, 10:51 AM
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Quote:
Originally Posted by C550Driver
D Tap,

How much would your 10S 123 packs weigh? Just curious how your CG might work out.

Bob
Bob,

A 10 cell pack less cabling, connectors, and tape/heat shrink is around 740 grams (26.1 ounces). I would probably go 2P for a total of 4600mAh capacity so double that weight. I'm even considering using 12S2P which would be very similar in output to a 10S lipo, but I think it will be tight in this bird. I have yet to purchase my Rascal 110; waiting for a sale or juicy coupon for a nice discount.

Doubletap
Jun 18, 2007, 11:44 AM
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What sort of straight and level flight time do you get?

Thanks
Ben


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