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View Full Version : "Holy cow, holy cow, holy cow" or First R60 Srimok flight


JimLerch
06-27-2008, 08:19 PM
"HOLY CRAP!" :YeaBaby:

I finished the Kasama install last night, and took it for its maiden flight today. "HOLY CRAP" It will flat back flip "RIGHT NOW" The old head took 3 seconds to do a complete back flip. I didn't officially time today's efforts, but it is in easily in the sub 1.5 second range.

I currently have the head dialed down as tame as it will go. In a hover or forward flight it feels vaguely like my old sloppy plastic head (as in, I'm not fighting cyclic to hold a hover, or fly in a straight line). However, work that cyclic a little and WOW "that's new!"

Tonight I'm going to move the double ball and mixer ball to the outside link locations. I expect that will really light things up!

With the head in the fully tame mode, I get +/-12 degrees of collective, and 7 degrees of pitch. Considering I can only make it more aggressive from this point forward, I think things are going to get interesting! :smokin: Easily the best upgrade I've ever done.


BTW, is there a downside to flying the cheap milk jug snap on canopy?
http://www.heliproz.com/images/PV0471.JPG

I smashed the last fiberglass canopy, and flew the one above today and it seemed ok....

Badger50
06-28-2008, 12:52 AM
Told ya you would like it. :YeaBaby:

forjer
06-28-2008, 01:03 AM
... BTW, is there a downside to flying the cheap milk jug snap on canopy?...
Yeah...it'll likely outlast your new Kasama. ;).

ShinOBIWAN
06-28-2008, 07:30 AM
Congrats Jim, sounds like you had a blast.

I use the Kasama myself and its a quick head.

Could you detail what linkage positions your using for the most tame flying. I'm using the stock Kasama settings along with Senika's Kasama build thread suggestions but its just a bit too twitchy for my inexperienced hands. I think dialing the head down will save on the pucker factor.

Cheers mate
Ant

BTW the plastic canopy is indestructible almost!

vandelescrow
06-28-2008, 07:34 AM
The only things about using the milk jug, It uses the rear mounting lugs and the clip on the landing gear. Over time the clip will get sloppy and needs to be secured with a screw through it. Otherwise the canopy can work its way up to interfere with the elevator / swash plate. The fiberglass canopy uses 4 mounting lugs and will not move in flight.

The other down side of the milk jug, I read you should cut a hole in the bottom side of the canopy to allow air to pass through in backwards flight.

Main down side: with the canopy being white and the decales blue (R90 3D), it disapears easy in the sky

JimLerch
06-28-2008, 09:17 AM
Could you detail what linkage positions your using for the most tame flying.

Well, here's a picture. (shamelessly stolen from Jim's Kasama post)
http://www.helifreak.com/attachment.php?attachmentid=53102

I might be able to argue that moving to the outermost hole on the see-saw might make it more stable, but I'm not so certain on that. It might depend on paddles, their weight, and the flybar length.

I'm running the stock flybar, PV0395, and Miniature Aircraft "3-D" 20g paddles, MIN0871

I started off with 25% expo on both Aileron and Elevator, but turned it down to 10% and could probably still go comfortably less.

ShinOBIWAN
06-30-2008, 01:23 PM
Thanks Jum,

I've made the adjustments and will see if its a little calmer now. I do have 15% expo ATM but don't really like the feel of using any expo. Hopefully with the head dialled down I'll be able to remove it completely.

BTW If you look at the Kasama instruction leaflet and specifically at the 'CAUTION' section then you'll see they say to use paddles over 30g with the head. I note you use 20g ones.

JimLerch
06-30-2008, 04:47 PM
Yea I saw that, but caution #6 says "use 46-48mm flybar wire" which doesn't make any sense. I assume them mean 46-48 cm wire, which makes sense. However, our stock stainless flybars are 20.5 inches or 52cm in length.

Now, I'm not certain if longer fly bar and lighter paddles is "the same as" shorter flybar and heavier paddles, but maybe.

All I know, is this setup sure seems to fly nice as it is. I do worry that there may be some invisible line that I cross that will suddenly cause a woof and poof with parts raining from the sky... :shock:

ShinOBIWAN
06-30-2008, 06:39 PM
Couple of R90 Srimok shots.

Fantastic looking headset.

http://img.villagephotos.com/p/2005-7/1050288/Kasama01.jpg

http://img.villagephotos.com/p/2005-7/1050288/Kasama02.jpg

JimLerch
07-01-2008, 02:45 PM
HEY.. How comes your blade grip arms say KASAMA?? Mine Don't :bawl

ShinOBIWAN
07-01-2008, 02:54 PM
HEY.. How comes your blade grip arms say KASAMA?? Mine Don't :bawl

I bought a spare set of blade grips and arms for crash spares and those arms are blank too.

Guess they only started doing this recently.

I've weighed the arms with and without the writing and I'm making a further 0.2g weight saving from the material removed for the logo. :shock: