70 mph DF 33

[Xzessperated]

Andy,
I tested the clone again this morning. Top speed on the Andym special M645 + S&B + cup was 109 kph so not as fast as the 113 kph run but I can put that down to 2 things.
1. I moved the Lipo about 1/2 and inch further forward to keep the nose down a little.
2. I ran the trim tabs a little lower than before so they may have been partially in the water when the nose was riding high.
I will re-adjust those 2 things next time.

After 5 runs with the above prop I gave it 2 runs on the untested M645 + S&B + cup + back cut prop. The speed instantly went to 112 kph so it was 3 kph faster than the M645 + S&B + cup prop. In theory this prop should give us a little over 72 mph if I can get the boat dialed in right again.

Videos below. Video 6 & 7 are with the back cut prop.

http://www.youtube.com/watch?v=KYcfnGkP7gk

http://www.youtube.com/watch?v=-EBm8cMOysU

http://www.youtube.com/watch?v=oAHQNtQVuuw

http://www.youtube.com/watch?v=hFRyiDh0KmU

http://www.youtube.com/watch?v=L2coW9FtyOM

http://www.youtube.com/watch?v=Tse21A9ggp8

http://www.youtube.com/watch?v=ISRsezKV3XQ

[andym]

Wow, goes to show that prop that is back & bar cut unloads real nice. You can hear the extra RPM from vid 5 to vid 6. Very calm water you will find more speed with a bit more ripple on the water, lift the tabs up or remove them and it did not look like going over mate so maybe go 1/2 way back with the pack. At this speed even very small amounts of CG change can reap rewards.
Looking good mate ( the boat that is )

[Jeff Wohlt]

Hey XZess, what are you shooting the video with and format you are uploading...great quality....and damn fine runs as well. She sings... thats for sure.

[Xzessperated]

Hey XZess, what are you shooting the video with and format you are uploading...great quality....and damn fine runs as well. She sings... thats for sure.

You will laugh when I tell you it is my cell phone Jeff. I have a Nokia N82 that I got from ebay. I have a $1000 digital camera and a $1750 digital video camera that sit in the draw because the cell phone out preforms both of them. It has a great Garmin GPS in it as well. I often use it for email and threads and posts on OSE when I am at work. If they can just make one that makes breakfast it would be great.
The video format is mp4

I really do not know why that boat is so fast. I often wonder if the motor got the wrong sticker on it at the factory.

[Xzessperated]

116 kph or 72.08 mph today. Thank you again Andy for those magic props.

This morning I went to the lake with heated packs for the first time with this boat. First run was 114 kph or 70.84 mph and an interesting ending as you will see from the video.
Second run was 116 kph or 72.08 mph and another interesting ending.
I really think this boat is capable of more speed if I can just keep the nose down and stop the blow overs. I will start shifting the weight forward to do this.

The video below will show you why our hobby can be dangerous at times. Spectators beware of the flying boat.
http://www.youtube.com/watch?v=D6WGGaxEoj4

Another long jump with the boat in this video.
http://www.youtube.com/watch?v=kkXsZH0MX5Y

116 kph


Crash Damage from the second blow over


Inside after the crash. No damage here. Battery tray and motor are still secure.

[westbeach]

Paddy,

Sorry to see the crash, looks like you're a lucky man, boat is still in one piece. The hatch can be fixed. BTW where are your packs placed?

[Xzessperated]

Paddy,

Sorry to see the crash, looks like you're a lucky man, boat is still in one piece. The hatch can be fixed. BTW where are your packs placed?

Neal, If you look at the picture below you will see the rear of the pack almost touches the motor. The Hydra 240 hides most of the pack but I can get a better pic if you want.

[Xzessperated]

Paddy,

where are your packs placed?

Neal,
I just got a better picture of where the pack sits. It has moved a little because of the crashes but I sit it in the middle of the Velcro strips with the back of the pack almost touching the motor. The straps hold it secure when they are done up.

[egneg]

Paddy ... if you don't mind, how is the stinger set as far as the angle goes. I have mine neutral at the moment but I think it needs to be angled down a bit from the way the giant rooster tail looked and the 42.7 mph gps.

[Rumdog]

LOL, that crash reminds me of my DF 26, it's fun when it lands back on it's feet! Good speed man!!

[Xzessperated]

Paddy ... if you don't mind, how is the stinger set as far as the angle goes. I have mine neutral at the moment but I think it needs to be angled down a bit from the way the giant rooster tail looked and the 42.7 mph gps.

Mine is set neutral also Chuck. The prop is an M645 with the works. I really do not think this is a 1515 1.5y motor. As you can hear it screams on 5s1p. The funny part about it all is my Xzess 2 rigger never went as fast on this motor.
I think 75 mph is not beyond this setup if I can keep it on the water. As you can see my runs are very short and I think with longer runs I would get a bit more speed. That is fast for a mono.

[Xzessperated]

LOL, that crash reminds me of my DF 26, it's fun when it lands back on it's feet! Good speed man!!

Thanks and I have to agree about the fun part. My boat is damaged but I have a smile on my face.

[egneg]

Mine is set neutral also Chuck. The prop is an M645 with the works. I really do not think this is a 1515 1.5y motor. As you can hear it screams on 5s1p. The funny part about it all is my Xzess 2 rigger never went as fast on this motor.
I think 75 mph is not beyond this setup if I can keep it on the water. As you can see my runs are very short and I think with longer runs I would get a bit more speed. That is fast for a mono.

I don't have any video but my rooster was much higher leading me to think I need to adjust the stinger a bit.

[Rumdog]

have you considered running 5s2p and putting the packs alongside the motor? The bit of extra weight may keep it planted plus double the c rating and capacity!

[Xzessperated]

I don't have any video but my rooster was much higher leading me to think I need to adjust the stinger a bit.

Yes that rooster is wasted energy as you know. Looks good but does nothing. I know you would have cupped the prop so I wont ask.
If you look close at the picture that shows the damaged hatch you will see another little trick I used.