Strength of E7se

[Chris Wall]

Crashed an E7se this weekend, inverted nose in, and not much survived.  Main gear, main bearing blocks, a few head components, tail box, and transmission box are ok, but the rest is toast.  Is this others typical experience?  I have done similar with a another 700 and crash parts didn't seem as much...

[Rodney Kirstine]

Sorry about the crash, those are never fun. 

Crashes are a really strange thing.  I've had some that, as it was going in, I was figuring the heli was going to be a complete write-off only to find almost nothing damaged.  I've had others that looked really benign but have had to replace a large number of parts.  One thing that I've really liked about the Synergy helis versus the ones I've had previously is how well the frames have held up in crashes.  I've had some seriously nasty looking crashes that the frames have survived.  I've always figured that with a 550 or larger, the amount of energy in the main rotor means a lot of twisted aluminum bent shafts any time it goes in.  Overall, at least for me, I've been pretty happy with how mine have held up in most crashes.

As I was typing this, I was re-reading your post.  Is it the cost of the parts that you're not happy about or the amount of damaged parts you ended up with?

[flyalan]

Crashed an E7se this weekend, inverted nose in, and not much survived.  Main gear, main bearing blocks, a few head components, tail box, and transmission box are ok, but the rest is toast.  Is this others typical experience?  I have done similar with a another 700 and crash parts didn't seem as much...

So you took out the side frames? Both?

I have planted E7's numerous times an never broke a frame. Some pretty hard crashes.  The SE maiden is on video. It was epic :-)

Cheers
Alan

Sent from my SM-N900V using Tapatalk

[Chris Wall]

Sorry about the crash, those are never fun. 

Crashes are a really strange thing.  I've had some that, as it was going in, I was figuring the heli was going to be a complete write-off only to find almost nothing damaged.  I've had others that looked really benign but have had to replace a large number of parts.  One thing that I've really liked about the Synergy helis versus the ones I've had previously is how well the frames have held up in crashes.  I've had some seriously nasty looking crashes that the frames have survived.  I've always figured that with a 550 or larger, the amount of energy in the main rotor means a lot of twisted aluminum bent shafts any time it goes in.  Overall, at least for me, I've been pretty happy with how mine have held up in most crashes.

As I was typing this, I was re-reading your post.  Is it the cost of the parts that you're not happy about or the amount of damaged parts you ended up with?

No, not the cost of parts, but amount of damage.  I just was wondering if that was typical, pretty much every CF part is broken (well not the swash stabilizer!)...

[Chris Wall]

Crashed an E7se this weekend, inverted nose in, and not much survived.  Main gear, main bearing blocks, a few head components, tail box, and transmission box are ok, but the rest is toast.  Is this others typical experience?  I have done similar with a another 700 and crash parts didn't seem as much...

So you took out the side frames? Both?

I have planted E7's numerous times an never broke a frame. Some pretty hard crashes.  The SE maiden is on video. It was epic :-)

Cheers
Alan

Sent from my SM-N900V using Tapatalk

Yep, pretty much every CF part broke except for the swash guide/stabilizer and the gyro sensor mount.  Both frame sides, bottom, ESC mount, etc.  And I did hit throttle hold...

And seriously I am not complaining, just asking if atypical or normal.  I do realize it is a big Heli with tons of power and what looks bad sometimes is not, and what looks ok sometimes is a write off (done this a few times!)!

And yes, already called Ralph!!!

[Rodney Kirstine]

In my experience, that is really unusual.  I have crashed mine way too many times and I have only replaced a frame once.

Sent from my MotoX via Tapatalk2

[Kevin Feil]

Damn brother, sorry to hear about that. You know I have planted my fair share of Synergies in the dirt, lol  and the odd thing was, the ones I figured would be totaled we're not that bad, the ones I figured were not that bad, we're the ones I had to totally rebuild. It's just one of those things.. I guess it all depends on just how it hits, ground (how hard it is) and attitude and speed at which it hits. I have seen Matt drive the E7 in on concrete and when we went to pick it up , the damn thing was fully in tack. This year at Heli Swarm, we had a inverted three way stack going and I was on the bottom, a fellow teammate bumped me driving us both in the dirt, not to bad, so I thought. His throttle stuck 3/4 open and just destroyed the clutch not to mention head, gears etc. My N5c suffered a severed tail boom and main blades, didn't even hurt the tail blades or snap the landing gear,  turns out mine was almost a re-kit. It just depends I guess. Now when I crash I go big or go home.. Lol    Good luck with the rebuild and you made the right choice calling Ralph. He is sitting on a stash of E7se parts and he will more than take care of you.. Happy Holidays...


Kevin

[flyalan]

I am with the rest.  This type of damage is atypical.  The CF frames are the parts I never break.
Keep us posted on your rebuild.

Cheers
Alan

Sent from my SM-N900V using Tapatalk

[Barry Tilson]

Put my E7 in twice last year. Once straight in on the head and on straight in on the nose. Both ran $400ish to rebuild. Both hit hard lost the batteries in the second one. Both times the frames made it with out issues.  Got lucky with the nose in as it didn't hurt the tail. Third mini auto crash took out the fwd tail gears, drive gear, boom and fin. $150 for that one.


Barry

[Chris Wall]

Thanks guys for the feedback!  Folks at my field think I am crazy for having two of the same model, but that way I can keep flying the helicopter I like the most and take time rebuilding...  Got it all disassemble and will put an order in with Ralph later this week!

[Jean-Luc Bolduc]

Sorry to hear about the crash. I have also 2x identical E7se and love to have a backup. I put equal time on each.

[Kevin Feil]

Then I guess There are guys here that would be considered lunatics at your field!!!Lol    As long as you fly Synergy, you will never have just one.  . If your Married go ahead and prep her...


K