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Boomerang Sprint Build Thread!

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Old 03-23-2009, 07:38 PM
  #551
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Default RE: Boomerang Sprint Build Thread!

At the bottom of the Reply is a link - "Click here to upload images and files"
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Old 03-24-2009, 02:16 AM
  #552
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Default RE: Boomerang Sprint Build Thread!

Hi,

Thanks Dave,

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Old 03-24-2009, 03:12 PM
  #553
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Default RE: Boomerang Sprint Build Thread!

Hello

I installed one of my jetcat gps receivers today in the sprint. Thought that I would share some of the info. Max speed 315 km/h with the p-70 in a very shallow decent (almost level flight) average speed 114 km/h, max altitude was 269 meters or 882 feet, distance traveled during this flight was 12.45 km and G load was 6.36 max.

Paul
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Old 03-24-2009, 03:57 PM
  #554
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Default RE: Boomerang Sprint Build Thread!

cool to know this. most of us are using the p70. i converted it to mph. 315 kilometers per hour is 195 mph. thats getting on down the road.. i didnt think this thing was that fast ..
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Old 03-24-2009, 04:45 PM
  #555
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Default RE: Boomerang Sprint Build Thread!

195mph is a pretty fair clip! Mind you, my P70 powered Reaction 54 was clocked at 183mph (294 kph)
This is going to be interesting with the Jet Central Falcon power (22lb thrust)
But Gosh Darn it, that means I can't bend the throttle stick against the stops any more...

By the way, got my box delivered literally an hour ago and have already run the heat gun over the center wing section and cut out the required holes. Even started working on the flap servo and flap.

The only parts I'm missing are the retracts, wheels and brakes. (But they are in the mail on their way as I type!!)

George
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Old 03-24-2009, 05:34 PM
  #556
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Default RE: Boomerang Sprint Build Thread!

Keep in mind that the Jetcat GPS mesures Ground Speed and not Indicated Air Speed or True Air Speed. The fastest run I made today was with a 10 knot tail wind, so that would give the sprint about 300 km/h True Air Speed.

Paul
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Old 03-24-2009, 06:11 PM
  #557
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Default RE: Boomerang Sprint Build Thread!

so you ground speed would be a little more then true airspeed. i fly a piper saratoga our true airspeed is 167 knots. i have seen ground speeds around 220mph. thats on the garmin 530.. so i figure with a stiff tail wind from a dive this boomer is capable of 200mph. you think..
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Old 03-24-2009, 08:32 PM
  #558
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Default RE: Boomerang Sprint Build Thread!

I measured mine at 194.6 mph, max speed for one flight, a few weeks ago. It was a windy day, so I assume that was a lucky downwind run. So 180 to 185 is more like true max.

It was being pushed by a Netherlands AMT Merc HP.
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Old 03-24-2009, 09:19 PM
  #559
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Default RE: Boomerang Sprint Build Thread!

I've go a Sprint that I just put a P-80 in so I guess it's capable of going pretty fast. I figured this plane was around 140 mph tops.

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Old 03-24-2009, 10:19 PM
  #560
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Default RE: Boomerang Sprint Build Thread!

Quote:
ORIGINAL: Mace

I've go a Sprint that I just put a P-80 in so I guess it's capable of going pretty fast. I figured this plane was around 140 mph tops.

MACE

the Sprint must have allot less drag then the Intro, my baby boomer with P-70 and a calibrated airspeed probe would only do an average 150mph and you had to dive to get that.
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Old 03-25-2009, 05:35 AM
  #561
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Default RE: Boomerang Sprint Build Thread!

I see there's a P80SE - be nice to upgrade to it and have faster throttle response.

Anyone flying with a p80? Whats your AUW? I need to check mine.
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Old 03-25-2009, 06:39 AM
  #562
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Default RE: Boomerang Sprint Build Thread!

yes the sprint is supposed to be much faster then the intro. i watched the video on youtube and you can here alan owner of boomerang jets say the sprint is much faster with the same size engine then the intro. i wouldnt think so but i guess it is.. i think is faster then 150 mph because the shok jet is clocked at 150 and thats a stiff leg highwing plane.. so i think 185mph is a realistic figure...
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Old 03-25-2009, 06:41 AM
  #563
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Default RE: Boomerang Sprint Build Thread!

hi paul. is this gps right from jet cat. how much and is it difficult to install? what does it have a little pitot tube on the wing or something.. this sounds interesting. let me know...thanks pat
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Old 03-25-2009, 06:57 AM
  #564
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Default RE: Boomerang Sprint Build Thread!


Quote:
ORIGINAL: ricardinho

hi paul. is this gps right from jet cat. how much and is it difficult to install? what does it have a little pitot tube on the wing or something.. this sounds interesting. let me know...thanks pat

they are 200 bucks and plug between the data cable and the ECU, then install the antenna where it can receive the satellites. you can order it from JetCat or just about any JetCat dealer.
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Old 03-25-2009, 08:50 AM
  #565
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Default RE: Boomerang Sprint Build Thread!

Hello

The jetcat gps is accurate to the number. I tested it on the A320 that I fly next to my PDA gps and cross checked them both with the airbuses instruments. It is accurate to the exact number, we were doing about 870 km/h then and it was the same on all three ( PDA, jetcat gps, and aircraft )

The jetcat gps is plug and play, and you need to enable it from the limits menu on the GSU. When asked by the GSU use COM2. I dont remember how much I bought them, I bought them a few years ago.

Paul
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Old 03-31-2009, 01:17 PM
  #566
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Default RE: Boomerang Sprint Build Thread!

Can those who are flying Sprints please post your CG position. After my first flight I decided it was too nose heavy. I've now moved my P80 to the back of the mounting beams, will see where it balances tomorrow.
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Old 03-31-2009, 01:39 PM
  #567
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Default RE: Boomerang Sprint Build Thread!

How long time takes it to get spareparts for this thing, my canopy was broken and I mailed the seller of this thing some weeks ago and no sign of any new canopy!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!![]


K-Ã…
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Old 03-31-2009, 01:47 PM
  #568
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Default RE: Boomerang Sprint Build Thread!

Please call Patricia!! She is a joy to speak with and she handles orders in a very timely fashion.
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Old 03-31-2009, 03:53 PM
  #569
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Default RE: Boomerang Sprint Build Thread!

Hes not in the US...... Sweden..... Patrictia probably cant help him.....
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Old 03-31-2009, 04:56 PM
  #570
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Default RE: Boomerang Sprint Build Thread!

Oh Sorry!! I did not know if she handled World Wide or just US.

She is fun to call just to Chat!! Very nice person!!
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Old 03-31-2009, 05:28 PM
  #571
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Default RE: Boomerang Sprint Build Thread!

Hi,

Contact Patricia. She handles the USA. She is located in Texas. Her # is 972-991-1499.

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Old 03-31-2009, 10:06 PM
  #572
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Default RE: Boomerang Sprint Build Thread!

Anyone know if BVM retracts will fit into the Sprint? I have a pair from a BobCat that I am not using?
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Old 03-31-2009, 10:12 PM
  #573
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Default RE: Boomerang Sprint Build Thread!

I have a friend who had a BVM T33. He chose not to use the BVM Gear and Struts. He went with the Dreamworks Gear and Struts and used the BVM Wheels and Brakes.
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Old 03-31-2009, 10:19 PM
  #574
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Default RE: Boomerang Sprint Build Thread!

Did he not use them because they wouldn't fit or for other reasons? I am going to use the struts/wheels/brakes, the struts are just short of the 120 length from axel to base of trunion on the mains.
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Old 04-02-2009, 09:47 AM
  #575
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Default RE: Boomerang Sprint Build Thread!

The BVM main gear could be made to fit, but would require alot of modification to the center section, and openings in the booms and outer panels for the cylinders. the BVM nose gear will not fit in the fuse at the location used........also the traling link struts are worth the cost, and more, on this bird.

After 52 flights on the Sprint the Dreamworks gear has been flawless in every way.....and very forgiving even on some bumpy grass runways.
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