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Nice work Dave given the conditions
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The only adjustment from Sunday’s test flight was to the nose gear servo to ensure the door stays locked. I changed the arm to allow the linkage to over centre. Current goes to almost nothing and the door is locked solid.
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Final job before more flying was to screw the PB battery mounts down. I used Velcro for the test flight so they could be moved if needed.
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One of the things I noticed with the anhedral tail is the tips of the tail could get close to the ground ( even though the Bolt! lands pretty flat ) and the model tends to tip back on mine with the hatch off. I had some carbon parts hanging around ( actually KingKat boom braces BV sent out and I never used) so I have made some scuff plates and fitted before this coming weekends hoped for Jet meeting.
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One of the considerations I had was once the nose was removed having it retained if no one was around to hold it. I looked at various options but realised I always have my painted box with me in the start box with glasses and Fire extinguisher in it.
So I came up with this idea, the proof will happen this weekend. https://cimg9.ibsrv.net/gimg/www.rcu...9f9ef2cc1.jpeg https://cimg6.ibsrv.net/gimg/www.rcu...29b873dbb.jpeg https://cimg7.ibsrv.net/gimg/www.rcu...51a1bcb5b.jpeg https://cimg8.ibsrv.net/gimg/www.rcu...688197bbd.jpeg |
I would use helicopter tape to protect my stab tips.
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I don’t intend to touch them!
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I should hope not! I've seen guys glue 80 grit sandpaper to their tips to protect them. Stuff happens.
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I’ve used rough Velcro, but that’s drag
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Eight more flights over this weekend, the Bolt is everything I expected and a little more. As my usual process I have been flying it with very little gyro dialled in so I could balance all the controls with movement and expo. Once this process is complete adding gyro generally just makes a model even better. A bit like my UF the Bolt flys really well without a gyro, after six flights I started adding gyro percentage to the 15% I had set for the test flight and as expected it’s just getting more and more locked in. I didn’t end up with any mixes before adding the gyro with my balance position just behind the wing fixing screw, gear down, landing fuel in the tanks. Timer is at 7 minutes with the JetCat P-220 and I’m landing with safe fuel when using full power-people commented today it accelerates going vertical from a slow pass.
One of the things that amused me is the surprise people showed at how slowly it lands, I guess the thought is it’s a high speed machine, but the speed range is massive. I hope to get someone to video it soon. |
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Having proved the canopy stand I have added ‘Bling’ to it 🙂
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Aileron and flap servos arms need to be shorter than stated in the manual
I’ve finally started work on David’s Bolt. First I have to say that this is one of the nicest finished CARF sport jets I’ve worked on. They have really stepped it up a notch. Working on the wings, the
https://cimg3.ibsrv.net/gimg/www.rcu...a77a61b2b.jpeg https://cimg4.ibsrv.net/gimg/www.rcu...f7bfb8853.jpeg https://cimg6.ibsrv.net/gimg/www.rcu...0135a9cbc.jpeg manual calls out for 1” arms for both the aileron and the flap. 1” would work for the aileron but I found that 3/4” gave a better angle on the pushrod which results in a shorter exit slot. There’s still plenty of travel with the shorter arm. I went with 3/4” for the flaps as well and found even this to be a little long. 17mm is probably ideal. I stayed with 3/4” since this is what I have and removed a small amount of the inner skin for clearance. I also opened up a small hole in the aft wing root to get a straighter shot at the rear flap servo screws. |
David’s was a first gen kit and the Flap servo was moved in the rib after that kit. You can see in my flap servo pics.
Dave |
Originally Posted by Dave Wilshere
(Post 12640531)
David’s was a first gen kit and the Flap servo was moved in the rib after that kit. You can see in my flap servo pics.
Dave |
Yes, I used around 3/4” (19mm) modified Secraft arms
Dave Also later production wings have a square hole where you drilled... |
Hi Dave,
Do have any photos showing how the tanks are held in position? |
Danny
The later kits come with some wood locators. I used a strip of Velcro 3/4” wide about 12” long parallel with the top face of the tank where it touches the fuselage side. The spar notch stops the tank moving forward/backwards, I did add a spot of silicon to remove any chafing in the tank arch. The Velcro stops the tank moving up, I’ve tried some fairly hard negative snaps and nothing moves. The CARF wood parts are designed to go on the top section under the canopy split line lip. Dave https://cimg6.ibsrv.net/gimg/www.rcu...77085d0be.jpeg https://cimg8.ibsrv.net/gimg/www.rcu...bdf651f5b.jpeg |
Working to get this jet done and out of my shop. The nose gear requires a 10 deg wedge be installed which is supplied with the kit. Don’t forget this or you will hate yourself later :)
The forward mount assembly is a bit flexible so it’s best to drill the holes with the mount installed on the fus. I already had the airframe upright so I flipped the mount upside down, stuck it in the fuselage holes, and clamped the gear in place. This made it easy to align the gear and drill the holes. Once the gear was screwed in place I flipped the mount over and everything lined up perfectly. https://cimg1.ibsrv.net/gimg/www.rcu...47f66e16e.jpeg |
Sloooooowly making some progress.
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Looks amazing Danny.... Can’t wait to see it and fly it ... I’m sure it’s another perfect jet from “Rocket Factory”
Thank you so much ... David |
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Be interesting to see the pump figures with the pipe runs on the suction side you have. I would monitor them over time once the fuel system settles in.
Dave |
Originally Posted by Dave Wilshere
(Post 12659073)
Be interesting to see the pump figures with the pipe runs on the suction side you have. I would monitor them over time once the fuel system settles in.
Dave Can you tell me how much fuel you had in your tanks when you weighed yours? |
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